ライフサイエンスコーパス: polysulfide

1 the coordinated thiirane becomes the cyclic polysulfide.

2 ffinity than hydrogenase I for both S(0) and polysulfide.

3 ) and S(2-) ) to sulfite and thiosulfate via polysulfide.

4 ellent physical properties displayed by many polysulfides.

5 pper CSEM inhibitor intercepts the migrating polysulfides.

6 d in a carbon host, which serve to sequester polysulfides.

7 tion kinetics and better trapping of soluble polysulfides.

8 tributing Li(2)S and in sequestering lithium polysulfides.

9 ellent physical properties displayed by many polysulfides.

10 enzymatic oxidation of hydrogen sulfide and polysulfides.

11 ) as well as solid-phase associated S(0) and polysulfides.

12 thiosulfate with transitory accumulation of polysulfides.

13 nce of graphite and sulfite, thiosulfate, or polysulfides.

14 FisR is highly sensitive to polysulfide, activating sigma(54) -dependent transcripti

15 duplication of a denture anchor in stone via polysulfide, addition silicone, and polyether impression

16 The resulting platinum polysulfide aerogels possess a highly porous and amorpho

17 ectly between Li(2)S and electrolyte without polysulfide and (b) lithium-ion diffusion in Li(2)S.

18 o population, and sustained the formation of polysulfide and Fe3S4, herby also dissolved sulfur.

19 d due to a synergetic effect of both lithium polysulfide and lithium nitrate as additives in ether-ba

20 effect of the mediating effect of dissolved polysulfide and the fast diffusion of Mg ion in the amor

21 lectrodes over planar film electrodes toward polysulfide and triiodide reduction, which suggests a st

22 strong dipole-dipole interaction between Li polysulfides and Li-S cathode materials originates from

23 This pathway uses soluble dimethyl polysulfides and lithium organosulfides as intermediates

24 eferential adsorption of higher order liquid polysulfides and subsequent conversion to lower order so

25 new simple synthetic method for binary metal polysulfides and sulfides was developed by utilizing an

26 ion-pi interactions between Li(+) of lithium polysulfides and the negatively charged cyclopentadienyl

27 study, quinonoid imine is proposed to anchor polysulfides and to facilitate the formation of Li2 S2 /

28 accompanied by the dissolution of long-chain polysulfide, and solid-state transition from short-chain

29 10(-4) mA cm(-2) , a rapid redox reaction of polysulfide, and therefore improved sulfur utilization a

30 ring lithiation, dissolution of intermediate polysulfides, and low ionic/electronic conductivity.

31 ron reductant, resulting in the formation of polysulfide anions, such as HS2(-), which were confirmed

32 Polysulfides are often referred to as key reactants in t

33 Hence, although polysulfides are unlikely to be stable in the reducing i

34 orous and amorphous structure with an intact polysulfide backbone.

35 Lithium polysulfide batteries possess several favorable attribut

36 ation for future grid energy storage.Lithium polysulfide batteries suffer from the precipitation of i

37 st time the occurrence of surface-associated polysulfides being the main oxidation products in the pr

38 need for material structures with effective polysulfide binding capability and well-defined surface

39 lculations, it was determined that effective polysulfide binding originates from favorable cation-pi

40 te coated with polyaniline (PANI) polymer as polysulfide block to achieve high sulfur utilization, hi

41 Cysteine polysulfide bridging stabilized different dimeric assemb

42 rrier is found to be the phase nucleation of polysulfides, but the amplitude of barrier is mainly due

43 the reduction of elemental sulfur (S(0)) and polysulfide by hydrogenase I and hydrogenase II, and bot

44 which were confirmed and trapped as organic polysulfides by benzyl chloride.

45 particles) into the cathode, the heteropolar polysulfides can be anchored within the cathode due to t

46 Because polysulfanes and polysulfides can catalyze the generation of reactive oxy

47 nts and theoretical calculations reveal that polysulfide capture by the oxides is via monolayered che

48 /flavoprotein oxidoreductase system restores polysulfide-carrying hemoglobin derivatives to ferrous h

49 e a dendrite-free Mg anode with a reversible polysulfide cathode and present a truly reversible Mg/S

50 ke carbon nanotube cathode and a liquid-type polysulfide catholyte.

51 use of lithium sulfide cathodes and lithium polysulfide catholytes, as well as recent burgeoning eff

52 l as a polysulfide reservoir in Li/dissolved polysulfide cells.

53 hus pointing out the gradual decrease of the polysulfide chain lengths.

54 Long polysulfide chains are produced during the first reducti

55 ghly conductive coating layer for stabilized polysulfide chemistry, is accomplished by the combinatio

56 metal-chalcogenide aerogels from Pt(2+) and polysulfide clusters ([S(x)](2-), x = 3-6).

57 n of the poorly soluble and insulating short polysulfide compounds was evidenced, thus leading to the

58 educes a range of disulfide, persulfide, and polysulfide compounds.

59 llic molecular compound, ferrocene, as a new polysulfide-confining agent.

60 propose that mitochondria export glutathione polysulfide, containing glutathione and persulfide, for

61 tion by zinc acetate, the surface-associated polysulfides could be precipitated as zerovalent sulfur

62 hort and decomposition leads to a mixture of polysulfides (Cys-S-(S)n-S-Cys).

63 urable network of mobile anions and restrict polysulfide diffusion from mesoporous carbon hosts by an

64 overcome the challenges associated with the polysulfide diffusion in lithium-sulfur batteries.

65 G coating) on a Celgard separator suppresses polysulfide diffusion through its physical and chemical

66 s that the hybrid electrolyte limits lithium polysulfide dissolution and is, thus, ideally suited for

67 However, the polysulfide dissolution and low electronic conductivity

68 materials are shown to completely eliminate polysulfide dissolution and shuttling between lithium an

69 an inherent mechanism for preventing lithium polysulfide dissolution and shuttling during electrochem

70 e is normally observed, attributed mainly to polysulfide dissolution and volume expansion.

71 Regulating intermediary polysulfide dissolution by understanding the metamorphos

72 ss of sulfur cathode material as a result of polysulfide dissolution causes significant capacity fadi

73 otection prevents mechanical degradation and polysulfide dissolution in lithium-sulfur battery chemis

74 ed ionic liquid (IL) significantly mitigates polysulfide dissolution, and therefore the parasitic red

75 g with fast reaction kinetics and negligible polysulfide dissolution.

76 g all reported Mg/S batteries by suppressing polysulfide dissolution.

77 phene Oxide composite electrode, and sulfide/polysulfide electrolyte deliver power conversion efficie

78 mprovements studied, use of a methanol-based polysulfide electrolyte results in a particularly dramat

79 ormance of QDSCs, the 30% deionized water of polysulfide electrolyte was replaced with methanol to im

80 raction between graphene oxide and sulfur or polysulfides enabled us to demonstrate lithium/sulfur ce

81 A brand new polysulfide entrapping strategy based on the ferroelectr

82 senates A(3)Ta(2)AsS(11) are stabilized in a polysulfide flux.

83 ite their potential relevance, the extent of polysulfide formation and its relevance for product form

84 Varying the Fe/S ratio revealed that surface polysulfide formation only becomes dominant when the rem

85 iate at the junction between thiosulfate and polysulfide formation, coordinates ferric hemoglobin and

86 identified in thicker films, resulting from polysulfide generation, but are shown not to improve the

87 Hydrogen sulfide (H2 S) and hydrogen polysulfides (H2 Sn , n>1) are endogenous regulators of

88 Among these molecules, hydrogen polysulfides (H2S(n), n > 1) are recently suggested to b

89 Hydrogen polysulfides (H2Sn) have a higher number of sulfane sulf

90 Endogenous hydrogen polysulfides (H2Sn; n>1) have been recognized as importa

91 Interaction between electrocatalyst and polysulfides has been evaluated by conducting X-ray phot

92 together show phosphorene as a highly potent polysulfide immobilizer for lithium-sulfur batteries, en

93 The chemical shift of Li polysulfides in (7) Li NMR spectroscopy, being both theo

94 is widely accepted to retard the shuttle of polysulfides in a working battery.

95 le for reversible storage/delivery of mobile polysulfides in lithium-sulfur (Li-S) batteries to contr

96 rom the dissolution and diffusion of lithium polysulfides in the electrolyte.

97 their efficient transformation to long-chain polysulfides in the subsequent redox process.

98 systematic strategy for the introduction of polysulfides in the synthesis of epipolythiodiketopipera

99 S to a mixture of thiosulfate and iron-bound polysulfides in which the latter species predominates.

100 sed to show that ring closure to form cyclic polysulfide incorporated inversion of stereochemistry ve

101 to reversibly form different soluble lithium polysulfide intermediates and insoluble lithium sulfides

102 ntent/loading, arising from the shuttling of polysulfide intermediates between the cathode and anode

103 Confining lithium polysulfide intermediates is one of the most effective w

104 l capacity while inhibiting the formation of polysulfide intermediates that lead to parasitic shuttle

105 The dissolution of polysulfide intermediates, however, results in severe sh

106 ctive material and inhibits diffusion of the polysulfide intermediates.

107 at human RBCs convert garlic-derived organic polysulfides into hydrogen sulfide (H(2)S), an endogenou

108 on the electrolyte due to the dissolution of polysulfides into the electrolyte, along with the format

109 H(2)S production from organic polysulfides is facilitated by allyl substituents and by

110 MNCS/CNT), which can strongly adsorb lithium polysulfides, is now reported to act as a sulfur host.

111 rsulfide derivatives of coenzyme A, although polysulfide itself is also efficiently reduced.

112 e electrode to chemically reduce in situ the polysulfide Li2S6 in liquid electrolyte to insoluble Li2

113 fferent dimeric assemblies, depending on the polysulfide linker length.

114 valuation of the reactions regarding lithium polysulfide, lithium nitrate and lithium metal, and prov

115 A polysulfide material was synthesized by the direct react

116 Hydrogen polysulfides may also have their own biosynthetic pathwa

117 for aerobic carbon monoxide (CO) oxidation, polysulfide metabolism and hydrogen utilization were ide

118 which the formation and chain-shortening of polysulfide occur at early stage accompanied by the diss

119 ite enable the effective trapping of lithium polysulfides on electroactive sites within the cathode,

120 polysulfides on the cathode and reduction of polysulfides on the anode.

121 electrodes, which prevent the dissolution of polysulfides on the cathode and reduction of polysulfide

122 2Fe-2S] cluster may generate a protein-bound polysulfide or persulfide that serves as the immediate S

123 zerovalent, such as thiols, organic di- and polysulfides, or heterocycles.

124 class of PTP inhibitors based upon a cyclic polysulfide pharmacophore that forms a reversible covale

125 two-phase reaction pathway, where the liquid polysulfide phase in the sulfide electrode is thermodyna

126 ediment surface; and high pore water sulfide-polysulfide promotes Mo fixation in pyrite while promoti

127 al effects of their intermediate byproducts, polysulfides (PS), have to be resolved to realize these

128 Organic polysulfides (R-S(n)-R'; n > 2) also undergo nucleophili

129 When polysulfide reacts with the R domain of FisR through the

130 The presence of sulfide/polysulfide redox couple is crucial in achieving stabili

131 for growth in high sulfide concentrations; a polysulfide reductase-like complex operon, psrABC (CT049

132 )H-dependent coenzyme A disulfide reductases/polysulfide reductases (CoADR/Psr) have been proposed to

133 thermore, during cycling the bulk of soluble polysulfides remains trapped within the cathode matrix.

134 ing of natural micropores function well as a polysulfide reservoir in Li/dissolved polysulfide cells.

135 only provide excellent electron pathways and polysulfide reservoirs, but they can also be used as a s

136 inding of mercury(II) to the sulfur-limonene polysulfide resulted in a color change.

137 Thus, SQR oxidises sulfide to polysulfides; rhodanese enhances the reaction of polysul

138 lved sulfide on the production of sulfur and polysulfide (S-PS) and associated iron corrosion was inv

139 sulfur species (i.e., bisulfide (HS(-)) and polysulfides (S(n)(2-))) and dissolved organic matter (D

140 Herein, we present evidence that the polysulfide shuttle in a Li-S battery can be stabilized

141 r every cycle, suggesting the suppression of polysulfide shuttle through the molecular design.

142 Stabilizing the polysulfide shuttle while ensuring high sulfur loading h

143 ry technology, and controlling the inherent "polysulfide shuttle" process has become a key research t

144 lfur (Li-S) batteries to control undesirable polysulfide shuttle.

145 problems arising from insulating sulfur and polysulfide shuttles as well as remarkably increasing th

146 e for growth of new materials: the potassium polysulfides spanning K(2)S(3) and K(2)S(5), which melt

147 t discharge plateau, S is reduced to soluble polysulfide species concurrently with the formation of a

148 Concentrations of aqueous polysulfide species were negligible (<1%).

149 nstrate preferential adsorption of a soluble polysulfide species, formed during discharge process, to

150 Finally, short polysulfide species, such as S(3)(2-), S(2)(2-), and S(2

151 problems are mainly caused by the dissoluble polysulfide species, which are a series of complex reduc

152 roposed mitochondrial pathway because it has polysulfides, that is, disulfide and trisulfide, as inte

153 With adsorbed additives, like LiNO3 and polysulfide, the lithium deposits are strongly textured,

154 e from a high-order polysulfide to low-order polysulfides through solid-liquid two-phase reaction pat

155 r experiences phase change from a high-order polysulfide to low-order polysulfides through solid-liqu

156 and solid-state transition from short-chain polysulfide to magnesium sulfide occurs at late stage.

157 e II, and both enzymes preferentially reduce polysulfide to sulfide rather than protons to H(2) using

158 This design with CSEM allows the dissolved polysulfides to be localized and the electrochemical rea

159 o sulfite; sulfite spontaneously reacts with polysulfides to generate thiosulfate.

160 vels, also metabolize garlic-derived organic polysulfides to liberate H(2)S.

161 electrolyte as a separator, which blocks the polysulfide transport towards the Li-metal, also has hig

162 A composite separator with a thin-film polysulfide trap is developed for lithium-sulfur batteri

163 diffusion through its physical and chemical polysulfide-trapping capabilities.

164 us cystine and evidence for the formation of polysulfides under these conditions.

165 Allyl-substituted polysulfides undergo nucleophilic substitution at the al

166 al approach to immobilize sulfur and lithium polysulfides via the reactive functional groups on graph

167 Dissolution of lithium polysulfides, volume expansion of sulfur and uncontrolla

168 scopic analysis shows 48.4% of sulfur in the polysulfide was converted to Li2S.

169 tribution between thiosulfate and iron-bound polysulfides was approximately equal.

170 The iron-bound polysulfides were unstable at physiological glutathione

171 ing the reaction between lithium and lithium polysulfide, which has long been considered as a critica

172 showed that DUF442 speeds up the reaction of polysulfides with glutathione to produce glutathione per

173 sulfides; rhodanese enhances the reaction of polysulfides with glutathione to produce GSSH; PDO oxidi