ライフサイエンスコーパス: zeolite

1 e prepared from a multilamellar MFI (ML-MFI) zeolite.

2 hydration reactions in the acid sites of the zeolite.

3 t elevated contents in the confined pores of zeolite.

4 he material transforms into an aluminous AFI-zeolite.

5 ity are characteristics that are shared with zeolites.

6 ed on five different, commercially available zeolites.

7 their location within the pore walls of four zeolites.

8 hierarchically-structured variants of these zeolites.

9 d as stable entities on oxide surfaces or in zeolites.

10 M-5, is expected to be transferable to other zeolites.

11 the positive effects of hierarchical porous zeolites.

12 and phosphonates, especially zirconium, and zeolites.

13 is more flexible than those of other 10-ring zeolites.

14 Fs) form structural topologies equivalent to zeolites.

15 nnels, a structural motif also found in some zeolites.

16 licit attention to enhanced accessibility of zeolites.

17 782 m(2)/g(-1)) comparable to or better than zeolites.

18 nd direct reactivity in transition metal ion-zeolites.

19 the lateral size and surface curvature of 2D zeolites.

20 e protonic species in industrially important zeolites.

21 of hierarchical materials such as mesoporous zeolites.

22 alysts by fixation inside Beta and mordenite zeolites.

23 anic framework materials and, in particular, zeolites.

24 as the largest unit-cell volume of all known zeolites (91,554 cubic angstroms) and demonstrates selec

25 porosity with the intrinsic microporosity of zeolites, a hierarchical pore system arises which facili

26 Zeolite aging in hot water prior to catalysis decreased

27 en is encapsulated in the channels of porous zeolite AlPO4-5 (AFI) single crystals by a high-pressure

28 In combination, these measurements reveal zeolite amorphization and distinct structural changes on

29 this process, porous composites composed of zeolite and clay crack the heavy fractions in crude oil

30 The size and shape selectivity of the zeolite and MOF materials are controlled by variation of

31 es freely moving in liquid phase outside the zeolite and molecules adsorbed inside zeolite pores and

32 fusivity of propylene through the small-pore zeolite and provide final evidence of the metal encapsul

33 sistent with weaker interactions between the zeolite and transition state and with the greater freedo

34 rystals and solids such as silica, clay, and zeolite and water-soluble hosts that can solubilize and

35 rous MOFs, which in contrast to conventional zeolites and activated carbons show great prospects for

36 part discusses the hydrothermal stability of zeolites and clarifies the promotional role that phospho

37 pectives of nanosized microporous materials (zeolites and clays) are addressed.

38 ported metal oxides, mixed-metal oxides, and zeolites and detail their most common applications as ca

39 Two broad classes of porous material - zeolites and metal-organic frameworks (MOFs) - are intro

40 f porous material-adsorbate systems, such as zeolites and metal-organic frameworks (MOFs).

41 Porous solids such as zeolites and metal-organic frameworks are useful in mole

42 ize the enthalpy of adsorption/desorption of zeolites and MOF-801 with water as an adsorbate by condu

43 Examples of the use of zeolites and MOFs in the sensing of water vapour, oxygen

44 Both types of porous material (zeolites and MOFs) reveal great promise for the fabricat

45 in hydrophobic microporous materials such as zeolites and MOFs, a field of research that has emerged

46 cations and amines, used in the synthesis of zeolites and related crystalline microporous oxides usua

47 Conventional adsorbents, namely zeolites and silica gel, are often used to control humid

48 e mesoporosity and pore interconnectivity of zeolites and stability of zeolites in liquid phase.

49 trinsic catalytic properties of conventional zeolites and the facilitated access and transport in the

50 sico-chemical properties of the hierarchical zeolites and their use in petrochemical and biomass-rela

51 reasingly complex, but structurally related, zeolites and to synthesize two more-complex zeolites in

52 pectroscopies (IR, Raman and INS) applied to zeolites and zeotype materials.

53 ed microporous crystals including framework (zeolites) and layered (clays) type materials.

54 effective on supports as diverse as TiO2, L-zeolites, and mesoporous silica MCM-41.

55 Metal-exchanged zeolites are a class of heterogeneous catalysts that per

56 Mesoporous zeolites are a new and technologically important class o

57 Copper ions exchanged into zeolites are active for the selective catalytic reductio

58 Zeolites are crystalline inorganic solids with microporo

59 ns when fully exchanged into high-silica LTA zeolites are demonstrated to exhibit excellent activity

60 where some of the most industrially relevant zeolites are found.

61 Zeolites are microporous materials driving industrial sc

62 Zeolites are porous aluminosilicate materials that have

63 Among these, copper and iron zeolites are remarkably reactive, hydroxylating methane

64 Missing silicon-oxygen bonds in zeolites are shown to be the cause for structural instab

65 Some two-dimensional (2D) exfoliated zeolites are single- or near single-unit cell thick sili

66 he catalytic performances for these modified zeolites are substantially improved.

67 ria have been formulated to explain why most zeolites are unfeasible synthesis targets.

68 Zeolites are versatile and fascinating materials which a

69 Zeolites are widely used in industrial processes, mostly

70 Zeolites are widely used in many commercial processes, m

71 emical intermediates, and therefore MFI-type zeolites are widely used in the chemical industry as sel

72 The performance of a zeolite as separation medium and catalyst depends on its

73 The use of metalloenzyme-like zeolites as Lewis acid catalysts for C-C bond formation

74 High-silica zeolites, as exemplified by ZSM-5, with excellent chemic

75 s DNA while MWCNTs are incorporated into the zeolite-assembly to enhance the electro-conductivity of

76 on due to hydrocarbon coking or poisoning of zeolites at an unprecedented spatial resolution.

77 rall results render the copper-exchanged LTA zeolite attractive as a viable substitute for Cu-SSZ-13.

78 to a step change in the number and types of zeolites available for future applications.

79 nt advances in developing a viable practical zeolite-based catalyst for lean NOx reduction, the insuf

80 ssential for understanding the reactivity of zeolite-based catalyst materials.

81 These new, small-pore zeolite-based catalysts not only exhibited very high NOx

82 r prospects for nanoscale quality control of zeolite-based materials.

83 g agent (SDA) inside the channel system of a zeolite be determined experimentally in a systematic man

84 The higher activities in zeolites BEA and FAU than in water are caused by more po

85 d Ta) transition metals are substituted into zeolite *BEA, the metals that form stronger Lewis acids

86 r structural stability as demonstrated using zeolite beta as example.

87 llene with ethanol in liquid phase over acid zeolite beta is revealed by in situ solid-state (13)C NM

88 beta-citronellene etherification on zeolite beta is suppressed by bulky base molecules (2,4,

89 oncentrating on metal-organic frameworks and zeolites, but the general concepts are likely to be appl

90 oubly (17)O- and (29)Si-enriched UTL-derived zeolites, by synthesis of (29)Si-enriched starting Ge-UT

91 Several types of hierarchical zeolites can be prepared by a large number of different

92 ate that the adsorption enthalpies of type I zeolites can increase to greater than twice the latent h

93 paration using nanoporous materials, such as zeolites, can be an alternative to energy-intensive amin

94 al oxides, metals, metal-organic frameworks, zeolites, carbon-based materials, and composite material

95 ion emphasizes the progress and potential in zeolite catalysed biomass conversions and relates these

96 Zeolite catalysis is determined by a combination of pore

97 Zeolite catalysis plays a distinct role in many of these

98 re real-time changes in reactivity of single zeolite catalyst particles by ensemble-averaging charact

99 sitional parameters of a Cu-exchanged SSZ-13 zeolite catalyst, the types and numbers of Cu active sit

100 e, the authors visualize the deactivation of zeolite catalysts by ptychography and other imaging tech

101 of NOx by NH3 over Cu- and Fe-ion exchanged zeolite catalysts has been extensively studied over the

102 e constants for reactions within microporous zeolite catalysts with chemical accuracy has recently be

103 ated by the case of hierarchically organized zeolite catalysts, a class of crystalline microporous so

104 erived furans and alcohols to aromatics over zeolite catalysts.

105 emical composition of cokes formed over acid zeolite catalysts.

106 f coke accumulation in industrially-relevant zeolite catalysts.

107 An elegant copper(I)-Y zeolite-catalyzed tandem process, involving ketenimine-b

108 Copper-exchanged zeolite chabazite (Cu-SSZ-13) was recently commercialize

109 Inspired by the importance of zeolite characterization which can now be performed at t

110 Despite the wide impact of phosphorus-zeolite chemistry, the exact physicochemical processes t

111 In zeolite chemistry, there is a particular problem with ac

112 The setting is a simple and common motif in zeolite chemistry: the box-shaped silicate double-four-r

113 Though inorganic zeolites collapse around the glass transition and melt a

114 Hierarchical zeolites combine the intrinsic catalytic properties of c

115 nce of diffusion limitations in hierarchical zeolites compared to their parent materials.

116 The research would benefit the design of zeolite composite opto-functional materials.

117 Crystals of the first sodalite-type zeolite containing an all-iron framework, a ferrolite, B

118 -synthetic strategies to prepare zeolitic or zeolite containing material with tailored hierarchical p

119 This is known as the zeolite conundrum--why have so few of all the possible s

120 lizing porous catalysts composed of clay and zeolite, converts heavy crude-oil fractions into transpo

121 However, methods to control zeolite crystal growth with nanometer precision are stil

122 t the single turnover kinetics of the parent zeolite crystal proceeds with significant spatial differ

123 s crucial for tailoring two-dimensional (2D) zeolites (crystallites with thickness less than two unit

124 h conventional Pd nanoparticles supported on zeolite crystals and a commercial Pd/C catalyst.

125 the fixation of Pd nanoparticles inside Beta zeolite crystals to form a defined structure (Pd@Beta).

126 be sterically controlled through the use of zeolite crystals, which enhances the product selectivity

127 riers on the overall water transport through zeolite crystals.

128 n the sub-structure of commercially relevant zeolite crystals: they are segmented along defect zones

129 monooxygenase activity are identified in the zeolite Cu-MOR, emphasizing that this Cu-O-Cu active sit

130 is also 2 orders of magnitude higher than in zeolites currently used in industrial scrubbers.

131 or a surface-stabilized hydroxonium ion in a zeolite, data suggest that the signal does not arise fro

132 d dehydrogenation are investigated for eight zeolites differing in the topology of channels and cages

133 linopyroxene-dominated lava sand (Cl-LS) and zeolite-dominated lava sand (Ze-LS), aiming at quantifyi

134 The application of zeolites, equipped with a variety of active sites, in Br

135 Luminescent zeolites exchanged with two distinct and interacted emis

136 Hence, identification of optimal zeolites for a given application from the large pool of

137 We report a tunable extraction of zeolite framework cations (Si, Al) on a faujasite-type z

138 tment for the non-discriminate extraction of zeolite framework cations.

139 ree dimensions, while the degradation of the zeolite framework upon postsynthesis steam treatment cou

140 vidual zeolite H-ZSM-5 crystals in different zeolite framework, reactant and solvent environments.

141 cted that many among the over 200 recognized zeolite frameworks can produce layered precursors.

142 e zeolite topologies, only a little over 200 zeolite frameworks of all compositions are currently kno

143 action orders at the SCR conditions, even on zeolite frameworks other than SSZ13.

144 Mild steaming of zeolite H-ZSM-5 crystals at 500 degrees C led to an enha

145 action to study the reactivity of individual zeolite H-ZSM-5 crystals in different zeolite framework,

146 vent effects on the reactivity of individual zeolite H-ZSM-5 crystals.

147 presence of the local structural defects in zeolite H-ZSM-5 crystals.

148 phosphatation of the industrially important zeolite H-ZSM-5 is a well-known, relatively inexpensive

149 (D8R), an elusive secondary building unit of zeolites, has been stabilized for the first time, both i

150 Group IV and V framework-substituted zeolites have been used for olefin epoxidation reactions

151 Among these, tin-containing zeolites have demonstrated superior catalytic properties

152 These two zeolites have much larger unit cell volumes (422,655 A(3

153 These new high-silica zeolites have rare characteristics, such as windows that

154 Hierarchical zeolites have received increasing attention in the last

155 icroporous aluminosilicates, better known as zeolites, have a unique but poorly understood relationsh

156 s a meaningful descriptor of confinement for zeolites having similar channel topologies.

157 Zeolites, having widespread applications in chemical ind

158 hydronium ions confined in the nanopores of zeolite HBEA catalyse aqueous phase dehydration of cyclo

159 We report the most siliceous FAU-type zeolite, HOU-3, prepared via a one-step organic-free syn

160 hieving higher SAR is desirable for improved zeolite (hydro)thermal stability and enhanced catalytic

161 bservation of multiple reactive sites in the zeolite HZSM-5, a member of the MFI family of zeolite st

162 Several microporous hydrophobic zeolite imidazolate frameworks (ZIFs) also happen to be

163 The great utility and importance of zeolites in fields as diverse as industrial catalysis an

164 o be the cause for structural instability of zeolites in hot liquid water.

165 terconnectivity of zeolites and stability of zeolites in liquid phase.

166 zeolites and to synthesize two more-complex zeolites in the family, PST-20 and PST-25, with much lar

167 er, although crucially, POMzites differ from zeolites in the modular manner of their preparation.

168 ve during the structure formation of high-Si zeolites in the presence of a cationic organic structure

169 y, the future challenges and perspectives of zeolites in the processing of biomass conversion are dis

170 ing this approach, the structures of two new zeolites in the RHO family, PST-20 and PST-25, were pred

171 OF beads are shown to outperform the leading zeolites in water sorption performance, with notably fac

172 Amorphization of zeolites, in particular, close to the particle exterior,

173 Additional advances enabled by 2D zeolites include synthesis of layered materials by desig

174 indicate that this is a common phenomenon in zeolites, independent of their structure and chemical co

175 Recently the concept of hierarchical zeolites invoked more explicit attention to enhanced acc

176 in the formation of the unusual structure of zeolite IPC-6.

177 trate the synthesis of two such 'unfeasible' zeolites, IPC-9 and IPC-10, through the assembly-disasse

178 The self-pillared, meso- and microporous zeolite is an active and selective catalyst for sugar is

179 A synthetic, fault-free gmelinite (GME) zeolite is prepared using a specific organic structure-d

180 The small-pore Cu-CHA zeolite is today the object of intensive research effort

181 nanostructures supported on shape-selective zeolites is a promising technology for natural gas lique

182 The higher activity of hydronium ions in zeolites is caused by the enhanced association between t

183 ganisation-reassembly), for the synthesis of zeolites is reviewed here in detail.

184 A major drawback of zeolites is the mass transfer limitation due to the smal

185 standing the formation of carbon deposits in zeolites is vital to developing new, superior materials

186 ural determination of a flexible pure silica zeolite (ITQ-55).

187 rained coordination geometry enforced by the zeolite lattice.

188 The large zeolite-like channels accommodate significant amounts of

189 lar polyhedral compartments of a crystalline zeolite-like hydrogen-bonded framework illustrates a uni

190 port the fabrication of the first continuous zeolite-like metal-organic framework (ZMOF) thin-film me

191 The Lewis acidic zeolites maintain activity in the presence of water and,

192 ew, besides on the hierarchically porous all-zeolite material, special focus is laid on the preparati

193 and physicochemical effects of phosphorus on zeolite materials with their catalytic performance in a

194 with special focus on hierarchically porous zeolite materials.

195 A zeolite membrane fabrication process combining 2D-zeolit

196 Greatly improved zeolite membranes were prepared by using high-aspect-rat

197 usses the current industrial applications of zeolite membranes, the feasibility of their use in membr

198 a viable strategy to grow thin high-quality zeolite membranes.

199 of a diverse set of crystal types, including zeolites, metal-organic frameworks, calcite, urea and l-

200 The higher activity in zeolite MFI with pores smaller than BEA and FAU is cause

201 es on the Pd nanoparticles controlled by the zeolite micropores, as elucidated by competitive adsorpt

202 Iron-containing zeolites (microporous aluminosilicate minerals) are note

203 an alkane hydrocarbon reagent, including one zeolite moiety characterized by a broad (1)H chemical sh

204 r example, has led to six previously unknown zeolites (named IPC-n, where n = 2, 4, 6, 7, 9 and 10).

205 Nanocrystals of zeolites (Nanocrys Zeo) and Multi-walled carbon nanotube

206 A paper chip was developed using zeolites nanoflakes and graphene-oxide nanocrystals (Zeo

207 number of proteins present in the corona of zeolite nanoparticles at 100% plasma (in vivo state) is

208 otein C-III (APOC-III) and fibrinogen on the zeolite nanoparticles at high plasma concentration (100%

209 The zeolite nanoparticles can be adapted to hemophilic patie

210 The zeolite nanoparticles can potentially be used for select

211 concentrations and the type of zeolites than zeolite nanoparticles concentration.

212 While the zeolite nanoparticles exposed to low plasma concentratio

213 The protein composition (corona) of zeolite nanoparticles has been shown to be more dependen

214 in various nanostructured materials, such as zeolites, nanoporous organic frameworks and colloidal na

215 silicate moieties and the crystallizing MFI zeolite nanosheet framework.

216 The zeolite nanosheet monolayer is formed at the air-water i

217 te membrane fabrication process combining 2D-zeolite nanosheet seeding and gel-free secondary growth

218 Mesostructured MFI zeolite nanosheets are established to crystallize non-to

219 ckness less than two unit cells) and thicker zeolite nanosheets for applications in separation membra

220 method can give closely packed monolayers of zeolite nanosheets on nonporous or porous supports.

221 Two-dimensional zeolite nanosheets that do not contain any organic struc

222 p) synthesis could produce high-aspect-ratio zeolite nanosheets, with improved yield and at lower cos

223 Thin, binder-less zeolite NaX laminates, with thicknesses ranging between

224 s question, we investigated six borosilicate zeolites of known framework structure (SSZ-53, SSZ-55, S

225 t mononuclear rhodium species, anchored on a zeolite or titanium dioxide support suspended in aqueous

226 Zeolites play numerous important roles in modern petrole

227 e is essential to build the link between the zeolite pore structure and its functionality.

228 de the zeolite and molecules adsorbed inside zeolite pores and in pore mouths.

229 f ethanol, beta-citronellene molecules enter zeolite pores and react to isomers.

230 tertiarybutylpyridine) that do not enter the zeolite pores confirming the involvement of easily acces

231 formation of carbonaceous deposits (coke) in zeolite pores during catalysis leads to temporary deacti

232 he concentration of beta-citronellene inside zeolite pores is very low because of preferential adsorp

233 on of beta-citronellene isomerization inside zeolite pores.

234 Cu-exchanged zeolites possess active sites that are able to cleave th

235 Zeolites represent a family of inorganic cation exchange

236 Zeolites represent inorganic solid-state materials with

237 Faujasite (X, Y, and USY) zeolites represent one of the most widely-applied and ab

238 With the exception of one commercial zeolite sample, which had the highest concentration of f

239 Herein we demonstrate that chabazite zeolite SAPO-34 membranes effectively separated Kr/Xe ga

240 us silica precursors (TEOS, fumed silica, or zeolite seed), and many oils (decane, petroleum ether, o

241 We expect that application of large AR zeolite seeds might be a viable strategy to grow thin hi

242 nes were prepared by using high-aspect-ratio zeolite seeds.

243 litates mass transport while maintaining the zeolite shape selectivity.

244 The zeolite shell and core-shell interface remained stable u

245 llowed imaging of both the catalyst core and zeolite shell in a single acquisition.

246 Trans-isomer OSDA leads to the small-pore zeolite SSZ-39 with the OSDA in its cages.

247 ture of the calcined form of the high-silica zeolite SSZ-70 has been elucidated by combining synchrot

248 As with all zeolites, strategies to tailor them for specific applica

249 lar crystallographic structure (for example, zeolite structure classification or gas adsorption prope

250 The effects of zeolite structure on the kinetics of n-butane monomolecu

251 Approximately 16 different types of layered zeolite structures and modifications have been identifie

252 o integrating mesopores with the microporous zeolite structures by using templating and/or destructiv

253 insufficient hydrothermal stabilities of the zeolite structures considered cast doubts about their re

254 p computational screening process, promising zeolite structures for two energy-related applications:

255 ed and >330,000 thermodynamically accessible zeolite structures have been predicted.

256 Although millions of hypothetical zeolite structures have been proposed, not enough is kno

257 eolite HZSM-5, a member of the MFI family of zeolite structures, contradicts the traditional view of

258 l these family members embedded isoreticular zeolite structures.

259 to the formation of the hierarchical porous zeolite structures.

260 ted at 150 degrees Celsius, using either the zeolite-supported or the titanium-dioxide-supported cata

261 e classes of microporous materials: trapdoor zeolites, supramolecular host calixarenes and metal-orga

262 ch as, mineral weathering, glass alteration, zeolite syntheses and cement hydration.

263 de a new strategy for hierarchical pore size zeolite synthesis, without using supramolecular or hard

264 rmation that are key to the understanding of zeolite synthesis-the location of the organic SDA in the

265 lasma protein concentrations and the type of zeolites than zeolite nanoparticles concentration.

266 ginate from Bronsted acid sites (BAS) of the zeolite that are formed by framework tetrahedral Si atom

267 opens up the possibility of preparing other zeolites that have not been accessible by traditional so

268 amework cations (Si, Al) on a faujasite-type zeolite, the archetype of molecular sieves with cages an

269 compared to Pt/SiO2 or Pt-containing Al-rich zeolites, the materials in this work show enhanced stabi

270 extends the boundaries for applicability of zeolites to challenging separations.

271 The susceptibility of zeolites to hot liquid water may hamper their full utili

272 rucial role in determining susceptibility of zeolites to hot liquid water.

273 es are responsible for the susceptibility of zeolites to liquid water.

274 suggest that there are millions of possible zeolite topologies, only a little over 200 zeolite frame

275 s , is particularly formed and stabilized in zeolite topologies.

276 e six crystalline high-germanium or high-tin zeolite-type sulfides and selenides with four different

277 tructural expansion of embedded isoreticular zeolites under the synthetic conditions studied herein.

278 of the three double-ring building blocks of zeolites, viz.

279 The discovery of layered zeolites was a fundamental breakthrough that created unp

280 orks, but not for the more widely applicable zeolites, where new materials are usually discovered usi

281 itions, mobilized Cu ions can travel through zeolite windows and form transient ion pairs that partic

282 A zeolite with structure type MFI is an aluminosilicate or

283 rocess has been used to disassemble a parent zeolite with the UOV structure type and then reassemble

284 Applying the ADOR process to a parent zeolite with the UTL framework topology, for example, ha

285 rediction, and the targeted synthesis of new zeolites with expanding complexity and embedded isoretic

286 ondensation reactions enabled by hydrophobic zeolites with isolated framework metal sites has encoura

287 Pentene adsorbed on zeolites with narrower pores, such as ferrierite, remain

288 eading to anisotropic epitaxial growth of 2D zeolites with rates as low as few nanometers per day.

289 -intrusively measure the catalytically coked zeolites with sample full body penetration.

290 reaction properties compared to conventional zeolites with sub-nanometer pore dimensions.

291 ed the synthesis of isoreticular families of zeolites with unprecedented continuous control over poro

292 -dispersed Pt(II) and Pd(II) single sites on zeolite Y, with an exquisite control of the Lewis acidit

293 ts that show HOU-3 is superior to commercial zeolite Y.

294 that Yb(3+) would preferably enter into the zeolite-Y pores and introduction of Mn(2+) would cause a

295 A series of all-silica zeolites (zeosil) frameworks were found suitable for rev

296 al capability of MOF-199 and other sorbents (zeolite (ZL) and activated carbon (AC)) was assessed aga

297 omplex, and previously unknown, structure of zeolite ZSM-25, which has the largest unit-cell volume o

298 anges at the sub-nm length scale in a single zeolite ZSM-5 crystal, which has been partially deactiva

299 was given on the rim and tip regions of the zeolite ZSM-5 crystals.

300 insight into the nature of the Mo species on zeolite ZSM-5 during methane dehydroaromatization.