Strongly coupled dual zerovalent nonmetal doped nickel phosphide Nanoparticles/N, B-graphene hybrid for pH-Universal hydrogen evolution catalysis
Strongly coupled dual zerovalent nonmetal doped nickel phosphide Nanoparticles/N, B-graphene hybrid for pH-Universal hydrogen evolution catalysis
复制标题
用于 PH 通用析氢催化的强耦合双零价非金属掺杂磷化镍纳米颗粒/N、B-石墨烯杂化物
DOI：
10.1016/j.apcatb.2020.119284
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发表时间：
2020-12-05
影响因子：
22.1
通讯作者：
Li, Cuncheng
中科院分区：
文献类型：
--
作者：
Sun, Yiqiang;Xu, Kun;Li, Cuncheng
电化学水裂解制氢的大规模实施需要高活性、耐用且廉价的无铂催化剂。然而，开发可以在所有pH溶液中工作的有效的基于非贵金属的析氢反应（HER）电催化剂仍然是一个巨大的困难。本文报道了N，B-石墨烯杂化的双零价非金属（N和B）掺杂的Ni 2 P纳米粒子（N，B-Ni 2 P/G）在所有pH下都能作为电催化剂，具有高的活性和稳定性。Ni-B-i纳米片/石墨烯（Ni-B-iNS/G）的2D/2D异质结在氨气氛下的原位磷酸化导致强耦合的N，B-Ni 2 P/G杂化电催化剂，其具有（i）来自双零价掺杂Ni 2 P结构的增强的固有催化活性，（ii）具有高表面积暴露产率的0 D结构，以及（iii）通过N，B-石墨烯载体增强的电荷传输能力。结果表明，所设计的N，B-Ni 2 P/G具有上级电催化性能，在所有pH范围内都具有良好的稳定性。我们的协议可能会开辟新的方法来设计先进的电催化剂的能源相关的应用。
The large-scale implementation of hydrogen by electrochemical water splitting demands highly active, durable and inexpensive platinum-free catalysts. Nevertheless, developing efficient non-noble metal based hydrogen evolution reaction (HER) electrocatalysts that can work in all pH solutions still remains as a huge uphill. Herein, we report dual zerovalent nonmetal (N and B) doped Ni2P nanoparticles hybridized with N, B-graphene (N, B-Ni2P/G) could function as electrocatalyst for hydrogen evolution in all pHs with high activity and stability. In-situ phosphidation of a 2D/2D heterojunction of Ni-B-i nanosheets/graphene (Ni-B-i NS/G) under ammonia atmosphere results in a strongly couple N, B-Ni2P/G hybrid electrocatalyst with (i) the enhanced intrinsic catalytic activity from dual zerovalent doped Ni2P structure, (ii) 0D architectures with a high surface area exposure yield, and (iii) the enhanced charge transport ability by N, B-graphene support. As a result, the designed N, B-Ni2P/G exhibits superior electrocatalytic HER performance and remarkable stability at all pH ranges. Our protocol may open up new ways to design progressive electrocatalysts for energy-related applications.