Heterostructured Arrays of NixP/S/Se Nanosheets on CoxP/S/Se Nanowires for Efficient Hydrogen Evolution,ACS Applied Materials & Interfaces

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Heterostructured Arrays of NixP/S/Se Nanosheets on CoxP/S/Se Nanowires for Efficient Hydrogen Evolution
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2017-11-16 00:00:00 , DOI: 10.1021/acsami.7b14466
Weiqiang Tang ₁ , Jianying Wang ₁ , Lixia Guo ₁ , Xue Teng ₁ , Thomas J. Meyer ₂ , Zuofeng Chen ₁

Affiliation

The development of efficient electrocatalysts for hydrogen evolution reaction (HER) is of increasing importance in energy conversion schemes. The earth-abundant transition-metal phosphides, especially CoP and Ni₂P, have emerged as promising catalysts for HER. We describe here the preparation and characterization of a hybrid catalyst of Ni₂P nanosheets@CoP nanowires on a carbon cloth for the reaction. The heterostructure and synergistic effects of the Ni₂P and CoP components result in an extremely low overpotential of 55 mV for achieving a catalytic current density of 10 mA cm^–2, which is remarkable for transition-metal phosphide electrocatalysts. The synthetic procedure could be readily extended to related, heterostructured bimetallic sulfides or selenides for HER.

中文翻译：

Ni _x P / S / Se纳米片在Co _x P / S / Se纳米线上的异质结构阵列，可有效释放氢气

用于氢释放反应（HER）的有效电催化剂的开发在能量转化方案中越来越重要。富含地球的过渡金属磷化物，尤其是CoP和Ni ₂ P，已成为有希望的HER催化剂。我们在这里描述了Ni ₂ P纳米片@ CoP纳米线在碳布上用于反应的杂化催化剂的制备和表征。Ni ₂ P和CoP组分的异质结构和协同效应导致55 mV的极低过电位，可实现10 mA cm ^–2的催化电流密度，这对于过渡金属磷化物电催化剂而言非常出色。该合成方法可以很容易地扩展到用于HER的相关的异结构双金属硫化物或硒化物。

更新日期：2017-11-17

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