Supported nickel-iron nanocomposites as a bifunctional catalyst towards hydrogen generation from N2H4 center dot H2O
Gao, W; Li, CM; Chen, H; Wu, M; He, S; Wei, M; Evans, DG; Duan, X; Wu M(吴敏)
刊名GREEN CHEMISTRY
2014
卷号16期号:3页码:1560-1568
学科分类Chemistry
DOI10.1039/c3gc41939h
英文摘要Hydrogen represents an important alternative energy feedstock for both environmental and economic reasons. Development of highly selective, efficient and economical catalysts towards H-2 generation from hydrogen storage materials (e. g., hydrous hydrazine, N2H4 center dot H2O) has been one of the most active research areas. In this work, a bifunctional NiFe-alloy/MgO catalyst containing both an active center and a solid base center was obtained via a calcination-reduction process of NiFeMg-layered double hydroxides (LDHs) precursor, which exhibits 100% conversion of N2H4 center dot H2O and up to 99% selectivity towards H-2 generation at room temperature, comparable to the most reported noble metal catalysts (e. g., Rh, Pt). The XRD, HRTEM and HAADF-STEM results confirm that well-dispersed NiFe alloy nanoparticles (NPs) with diameters of similar to 22 nm were embedded in a thermally stable MgO matrix. The EXAFS verifies the electronic interaction between nickel and iron elements in NiFe alloy NPs, accounting for the significantly enhanced low-temperature activity. The CO2-TPD results indicate that the strong basic sites on the surface of the NiFe-alloy/ MgO catalyst contribute to the high H-2 selectivity.
收录类别SCI
WOS记录号WOS:000332039200068
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被引频次:33[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225018
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
中国科学院高能物理研究所_多学科研究中心
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Gao, W,Li, CM,Chen, H,et al. Supported nickel-iron nanocomposites as a bifunctional catalyst towards hydrogen generation from N2H4 center dot H2O[J]. GREEN CHEMISTRY,2014,16(3):1560-1568.
APA Gao, W.,Li, CM.,Chen, H.,Wu, M.,He, S.,...&吴敏.(2014).Supported nickel-iron nanocomposites as a bifunctional catalyst towards hydrogen generation from N2H4 center dot H2O.GREEN CHEMISTRY,16(3),1560-1568.
MLA Gao, W,et al."Supported nickel-iron nanocomposites as a bifunctional catalyst towards hydrogen generation from N2H4 center dot H2O".GREEN CHEMISTRY 16.3(2014):1560-1568.
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