ライフサイエンスコーパス: hafnium

1 had no effect on central Pacific deep-water hafnium.

2 hese heterogeneities, caused by the decay of hafnium-182 in mantle domains with high hafnium/tungsten

3 The effect of hafnium addition to the standard Nb-4Ta alloy has been r

4 e specifically, we present evidence that the hafnium alkyl cation initially undergoes monomer inserti

5 ent study reveals that simple zirconium- and hafnium-amido complexes are highly efficient catalysts f

6 The hafnium analogue of 1, Cp*(Cl)Hf(2,3-dimethylbutadiene)

7 Here we present hafnium and lead isotope data from across the Indian-Pac

8 We identified systematic variations in hafnium and oxygen isotopes in zircons of different ages

9 re we report the first study that integrates hafnium and oxygen isotopes, all measured in situ on the

10 Here we investigate the synthesis of hafnium (and zirconium) oxide nanocrystals from the meta

11 (pH>10), however, is unknown, as studies of hafnium aqueous chemistry have been limited to acid.

12 d perovskite hafnate, we create an amorphous hafnium-based oxide that exhibits the energy density of

13 ct with a low-work-function electrode (e.g., hafnium carbide).

14 ltra-high-temperature ceramics (for example, hafnium carbonitride) and refractory metal alloys.

15 UiO-67 occurs through the cleavage of strong hafnium-carboxylate bonds and is effected under mild con

16 apidly to discover the new amide-ether based hafnium catalyst [eta(2)-(N,O)[bond](2-MeO[bond]C(6)H(4)

17 gated the olefin polymerization mechanism of hafnium catalysts supported by a pyridyl-amide ligand wi

18 Group transfer between hafnium centers was observed upon treatment with Me3SiCl

19 cterization of the first polynuclear hydroxo hafnium cluster isolated from base, [TMA]6 [Hf6 (mu-O2 )

20 A dinuclear hafnium complex containing the parent imido ligand [(PN)

21 zation of a series of cationic zirconium and hafnium complexes with alkyl substituents bearing beta-h

22 Here we show that an organometallic hafnium compound induces N(2) cleavage on the addition o

23 zations performed using selected amide-ether hafnium compounds confirmed the performance features of

24 We report a hafnium-containing MOF, hcp UiO-67(Hf), which is a ligan

25 n quantitative yield along with unidentified hafnium-containing species.

26 comprising a previously unstudied material, hafnium diboride, suggesting that refractory metallic ce

27 orous titanium dioxide (TiO(2)), ZrO(2), and hafnium dioxide (HfO(2)) in phosphopeptide enrichment an

28 High-temperature phases of hafnium dioxide have exceptionally high dielectric const

29 rface layer between molybdenum disulfide and hafnium dioxide in a bottom-gate configuration, enhanced

30 principal aerosol strontium, neodymium, and hafnium end members were concrete dust and soil, soil an

31 ns a new chapter in the aqueous chemistry of hafnium, exemplifying the concept of amphoteric clusters

32 abrication, the roughness of a mass produced hafnium film was investigated.

33 formed on metal oxide surfaces and show that hafnium-gold chemistry is complementary and orthogonal t

34 We unlocked the plutonic archive through hafnium (Hf) and oxygen (O) isotope analysis of zoned zi

35 emission with the supramolecular assembly of hafnium (Hf) and zirconium (Zr) halide octahedral cluste

36 Among the large family of MOFs, hafnium (Hf) based MOFs have been demonstrated to be hig

37 lasses from the ancient city of Gerasa, that hafnium (Hf) isotopes are different in Egyptian and Leva

38 Here we used combined neodymium (Nd) and hafnium (Hf) isotopes to disprove the release of Nd and

39 Isolated hafnium (Hf) sites were prepared on Silicalite-1 and SiO

40 n metals, titanium (Ti), zirconium (Zr), and hafnium (Hf), of different concentrations (0-50 at.

41 Specifically, a series of hafnium (Hf)-based 2D MOLs with different thicknesses (m

42 The hafnium hydrostannyl complex CpCpHf(SnHMes(2))Cl (Cp = e

43 Zirconium and hafnium in the tetravalent oxidation state are considere

44 approximately 1440 million years, an epsilon-hafnium initial value of +7, and an epsilon-neodymium in

45 monolayers on gold is reported that employs hafnium ions as linkers between a phosphonate headgroup

46 Here we report new zircon uranium-lead and hafnium isotope data from the Yilgarn Craton, Australia,

47 ciated with a set of large global oxygen and hafnium isotope excursions in magmatic zircon that sugge

48 us events than the exposed geology and their hafnium isotope ratios reflect the time since the source

49 Decoupled oxygen-hafnium isotope systematics suggest a complex source for

50 oproterozoic rift-margin strata are similar; hafnium isotopes of approximately 1.4-billion-year-old A

51 ploying radiogenic strontium, neodymium, and hafnium isotopes to accurately differentiate and quantit

52 Significant fluctuations in hafnium isotopic composition occurred in the Eocene and

53 Hafnium isotopic compositions have remained approximatel

54 A Cenozoic record of hafnium isotopic compositions of central Pacific deep wa

55 High-precision hafnium isotopic data for lavas from several Hawaiian vo

56 ition of zircons, for which uranium-lead and hafnium isotopic data provide age constraints, is a key

57 theast Indian ridge (SEIR) display a bimodal hafnium isotopic distribution.

58 On the basis of the hafnium isotopic evolution of Hadean detrital zircons wo

59 Hyperbolic lead-hafnium isotopic relations among Hawaiian basalts furthe

60 In this report, zirconium(IV)- and hafnium(IV)-bishydroxamic acid complexes were utilized i

61 Lutetium-hafnium (Lu-Hf) isotope data for ALH indicate an igneous

62 Herein, we report that discrete hafnium metal-oxo cluster [Hf(18) O(10) (OH)(26) (SO(4)

63 Herein, we report a highly active hafnium-modified iridium oxide (IrHf(x)O(y)) electrocata

64 ium zirconium nitride (CaZrN(2)) and calcium hafnium nitride (CaHfN(2)), by solid state metathesis re

65 an ultrathin refractory plasmonic material, hafnium nitride (HfN).

66 ation dislocation; the nanorod is reduced to hafnium on cooling.

67 t can be easily prepared by first patterning hafnium on the gold surface followed by alkanephosphonat

68 ch remains freestanding after coating of the Hafnium oxide (HfO(2)) as well as linkers and antibodies

69 ial evaluated the safety and efficacy of the hafnium oxide (HfO(2)) nanoparticle NBTXR3 activated by

70 e report ferroelectricity in ultrathin doped hafnium oxide (HfO(2)), a fluorite-structure oxide grown

71 The emergence of hafnium oxide (HfO(2))-based ferroelectrics that are com

72 Hafnium oxide (HfO2) is a leading candidate to replace s

73 ransparent resistive memory (TRRAM) based on Hafnium oxide (HfO2) with excellent transparency, resist

74 SWCNTs to basic metal oxide surfaces (i.e., hafnium oxide (HfO2)).

75 The nanostructured hafnium oxide (nHfO2) was used as a model NMO.

76 idth measurements of the ion current through hafnium oxide and silicon nitride nanopores allow the an

77 ed by incorporating an average of 7% Ba into hafnium oxide during pulsed laser deposition at temperat

78 The RMS roughness of the mass produced hafnium oxide film was 0.11 nm at a 500 nm field of view

79 ughness which was 0.18 nm for the 3 nm thick hafnium oxide film.

80 hese results launch the stable zirconium and hafnium oxide hosts as alternatives for the established

81 rcapacitor effect with the high-k dielectric hafnium oxide is demonstrated that allows modulation fro

82 nosis to investigate the interface effect of hafnium oxide ultrathin films.

83 metal oxide-based high-k materials, such as hafnium oxide, in the pores was achieved.

84 izes interfacial resistive switching (RS) in hafnium oxide-based devices.

85 Here we report a new hafnium oxide-organic self-assembled nanodielectric (Hf-

86 s and structures of titanium, zirconium, and hafnium oxides.

87 old substrates that had been pretreated with hafnium oxychloride are representative of this new class

88 Our results indicate that nitrogen-modified hafnium oxyhydroxide could be a true alternative for pla

89 We report herein that hafnium oxyhydroxide with incorporated nitrogen by treat

90 re we reduce the thickness of the protective hafnium oxynitride layer at the surface of a silicon sol

91 Selective dissolution of hafnium-peroxo-sulfate films in aqueous tetramethylammon

92 The binary zirconium and hafnium polyazides [PPh4 ]2 [M(N3 )6 ] (M=Zr, Hf) were o

93 Herein, we report the design of a hafnium-porphyrin-based cationic metal-organic layer (CM

94 d to 1-octene polymerization as catalyzed by hafnium-pyridyl amido precursors enables quantification

95 in bromobenzene-d5 yielded the zwitterionic hafnium silyl complex [CpCpHfSi(SiMe3)3][MeB(C6F5)3] (7)

96 tatively produced the corresponding cationic hafnium silyl complexes 12-14.

97 eaction also forms neutral organohafnium and hafnium sites lacking methyl groups.

98 Hafnium speciation under these basic conditions (pH>10),

99 The open coordination site at hafnium suggested the possibility of functionalization o

100 n fact be introduced and controlled within a hafnium terephthalate MOF.

101 Here we show that palladium-capped hafnium thin films show a highly reproducible change in

102 Some hafnium-tungsten isotope data, however, require that Ves

103 rements of tungsten isotope compositions and hafnium-tungsten ratios of several meteorites.

104 Characterization of the hafnium-tungsten systematics ((182)Hf decaying to (182)W

105 y of hafnium-182 in mantle domains with high hafnium/tungsten ratios, were created during the first ~

106 as a function of its hydrogen content makes hafnium well-suited for use as a hydrogen detection mate

107 lculation suggests that such DW formation in hafnium zirconium oxide (HZO) based FEs depends on the u

108 steep-slope transistor with a ferroelectric hafnium zirconium oxide layer in the gate dielectric sta

109 ferroelectric-to-mixed phase boundary (MPB) hafnium zirconium oxides integrated onto indium-gallium-