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DOI	10.1039/c9ee01564g
	Metal boride better than Pt: HCP Pd2B as a superactive hydrogen evolution reaction catalyst
	Chen L.; Zhang L.-R.; Yao L.-Y.; Fang Y.-H.; He L.; Wei G.-F.; Liu Z.-P.
发表日期	2019
ISSN	1754-5692
起始页码	3099
结束页码	3105
卷号	12 期号:10
英文摘要	In the search for a highly active bulk material for the hydrogen evolution reaction (HER) under acidic conditions, we developed a simple solvothermal approach to synthesize Pd2B nanosheets supported on carbon, which achieves a low overpotential for the HER, 15.3 mV at 10 mA cm-2, a small Tafel slope of 22.5 mV dec-1 and a high exchange current density (j0) of 2.84 mA cm-2. The atomic structure evolution from Pd to Pd2B catalyst during synthesis is analyzed in detail via experimental and theoretical calculations, which shows that the slow insertion of B is assisted by the layer-by-layer fcc-to-hcp phase transition. Theoretical calculations further revealed that both the subsurface B and the lattice expansion after the hcp lattice formation play a key role to boost the HER activity. Since the Pd2B crystal is the global minimum in the Pd-B alloy, the success in the synthesis and demonstration of high HER activity paves the way towards further exploration of the catalytic performance for this stable metal boride material. © 2019 The Royal Society of Chemistry.
语种	英语
scopus关键词	Borides; Catalysts; Crystal atomic structure; Hydrogen; Isomers; Palladium alloys; Acidic conditions; Catalytic performance; Exchange current densities; Hydrogen evolution reactions; Lattice formation; Solvothermal approach; Structure evolution; Theoretical calculations; Platinum compounds; acidity; catalysis; catalyst; chemical reaction; equipment; exploration; inorganic compound; performance assessment
来源期刊	Energy and Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162405
作者单位	Collaborative Innovation Center of Chemistry for Energy Material, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Key Laboratory of Computational Physical Science, Department of Chemistry, Fudan University, Shanghai, 200433, China; Shanghai Key Laboratory of Chemical Assessment and Sustainability, State Key Laboratory of Pollution Control and Resources Reuse, School of Chemical Science and Engineering, Tongji University, Shanghai, 200092, China; School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai, 201418, China; Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou, 730000, China
推荐引用方式 GB/T 7714	Chen L.,Zhang L.-R.,Yao L.-Y.,et al. Metal boride better than Pt: HCP Pd2B as a superactive hydrogen evolution reaction catalyst[J],2019,12(10).
APA	Chen L..,Zhang L.-R..,Yao L.-Y..,Fang Y.-H..,He L..,...&Liu Z.-P..(2019).Metal boride better than Pt: HCP Pd2B as a superactive hydrogen evolution reaction catalyst.Energy and Environmental Science,12(10).
MLA	Chen L.,et al."Metal boride better than Pt: HCP Pd2B as a superactive hydrogen evolution reaction catalyst".Energy and Environmental Science 12.10(2019).