Low-ruthenium-content NiRu nanoalloys encapsulated in nitrogen-doped carbon as highly efficient and pH-universal electrocatalysts for the hydrogen evolution reaction
作者:You Xu、Shuli Yin、Chunjie Li、Kai Deng、Hairong Xue、Xiaonian Li、Hongjing Wang、Liang Wang
DOI:10.1039/c7ta09939h
日期:——
A NiRu@N–C hybrid is fabricated and tested as an efficient catalyst for the hydrogen evolution reaction in a wide pH range.
一个NiRu@N-C混合物被制备并测试,作为在广泛pH范围内高效催化剂进行氢析出反应。
Mishra; Tiwari; Singhai, Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 2002, vol. 41, # 10, p. 2092 - 2095
作者:Mishra、Tiwari、Singhai
DOI:——
日期:——
Nickel/cobalt bimetallic phosphides derived metal-organic frameworks as bifunctional electrocatalyst for oxygen and hydrogen evolution reaction
Abstract The construction of efficiently non-noble metal bifunctional electrocatalysts for both oxygenevolutionreaction (OER) and hydrogen evolutionreaction (HER) is a major challenge for renewable energy generation. Here, considering the synergistic effect of differently metal sites and excellent electrocatalytic activities of bimetallic phosphides, the hybrids of NiCo bimetallic phosphides (NiCo–P)
摘要 为析氧反应(OER)和析氢反应(HER)构建高效的非贵金属双功能电催化剂是可再生能源发电的主要挑战。在这里,考虑到不同金属位点的协同效应和双金属磷化物优异的电催化活性,通过一步磷化镍钴金属有机骨架(NiCo-BDC)作为双功能电催化剂制备了镍钴双金属磷化物(NiCo-P)的杂化物用于水分解。受益于 Ni2P 和 Co2P 在双金属磷化物体系中独特的多孔结构和协同作用,Ni1Co1-P 杂化物对 OER 和 HER 均表现出出色的电催化活性,与单金属磷化物(Ni-P 和 Co-P)和 Ni-P + Co 相比,碱性条件下在 10 mA cm−2 的电流密度下分别具有 343 mV (OER) 和 169 mV (HER) 的小过电位-P 样品,说明 Ni2P/Co2P 界面的存在是在 NiCo-P 系统中实现协同效应和提高催化活性的基本要求。这项工作为设计更有效的多组分电催化剂提供了一种通用策略。