Nest-like NiCoP for Highly Efficient Overall Water Splitting
Nest-like NiCoP for Highly Efficient Overall Water Splitting
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巢状 NiCoP 可实现高效整体水分解
DOI：
10.1021/acscatal.7b00662
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发表时间：
2017-06-01
期刊：
影响因子：
12.9
通讯作者：
Luo, Wei
中科院分区：
文献类型：
--
作者：
Du, Cheng;Yang, Lan;Luo, Wei
研究析氢反应（HER）和析氧反应（OER）的高效非贵重电催化剂对可再生能源技术具有重要意义。在这里，我们提供了连续的水热、氧化和磷化方法来制备三维巢状三元NiCoP/碳布（CC）电催化剂，具有优异的HER/OER催化活性和稳定性。巢状NiCoP/CC在酸性和碱性介质中分别需要44和62 mV的过电位才能达到10 mA cm（-2）的电流密度，而在碱性溶液中，NiCoP/CC在10 mA cm（-2）的电流密度下具有242 mV的过电位，具有高活性和耐用性能。此外，NiCoP/CC作为双功能催化剂在1.52 V和1.77 V下的整体水分解反应的电流密度分别为10和100 mA cm（-2）。
The investigation of high-efficiency nonprecious electrocatalysts for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is of great significance for renewable energy technologies. Here, we provide a successive hydrothermal, oxidation, and phosphidation method to fabricate a 3D nest-like ternary NiCoP/carbon cloth (CC) electrocatalyst with superior catalytic activity and stability toward HER/OER. Nest-like NiCoP/CC requires over-potentials of 44 and 62 mV to reach the current density of 10 mA cm(-2) in acidic and alkaline media, respectively, toward HER For OER, the NiCoP/CC exhibits high active and durable performance with an overpotential of 242 mV at current density of 10 mA cm(-2) in alkaline solutions. Furthermore, the practical application of NiCoP/CC as a bifunctional catalyst for overall water splitting reaction yields current densities of 10 and 100 mA cm(-2) at 1.52 and 1.77 V, respectively.