Co/CoP embedded in a hairy nitrogen-doped carbon polyhedron as an advanced tri-functional electrocatalyst
Co/CoP embedded in a hairy nitrogen-doped carbon polyhedron as an advanced tri-functional electrocatalyst
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Co/CoP嵌入毛状氮掺杂碳多面体作为先进的三功能电催化剂
DOI：
10.1039/c7mh00706j
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发表时间：
2018-01-01
影响因子：
13.3
通讯作者：
Sun, Xiaoming
中科院分区：
文献类型：
--
作者：
Hao, Yongchao;Xu, Yuqi;Sun, Xiaoming
设计和合成低成本、高效率的多功能电催化剂仍然是一个巨大的挑战。在此，我们报告了一个三功能的电催化剂的合理设计和实现，其特征在于Co/CoP嵌入在来自常见的金属有机框架（MOFs）的毛茸茸的氮掺杂碳多面体（Co/CoP-HNC）。催化剂中的Co、CoP和毛状氮掺杂碳的组分分别赋予催化活性、高电化学表面积和电子导电性。定制的Co/CoP-HNC催化剂的协同作用为氧还原反应（ORR）、析氧反应（OER）和析氢反应（HER）提供了高活性。在整体水裂解和锌-空气电池测试中进一步证明了催化性能和组装可行性，并且都显示了所提出的电催化剂的高效率和长寿命。
The design and synthesis of a multi-functional electrocatalyst with low cost and high efficiency is still a great challenge. Herein, we report the rational design and realization of a tri-functional electrocatalyst featuring Co/CoP embedded in a hairy nitrogen-doped carbon polyhedral (Co/CoP–HNC) derived from common metal organic frameworks (MOFs). The components of Co, CoP, and hairy nitrogen-doped carbon in the catalyst respectively render catalytic activity, high electrochemical surface area, and electronic conductivity. The synergy of the tailored Co/CoP–HNC catalyst provides high activity for oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER). The catalytic performance and assembly feasibility are further demonstrated in overall water splitting and Zn–air battery tests, and both revealed high efficiency and long durability of the proposed electrocatalyst.