析氧
材料科学
电解
催化作用
尿素
分解水
化学工程
热液循环
制氢
废水
电解质
电化学
电极
化学
环境工程
光催化
有机化学
物理化学
环境科学
生物化学
工程类
作者
Liming Yang,Feng Ren,Jinzhuo Shi,Tao Yang,Chunyu Guo,Yafeng Chen,Enhui Wang,Zhentao Du,Kuo‐Chih Chou,Xinmei Hou
标识
DOI:10.1016/j.ceramint.2022.09.035
摘要
Finding efficient and versatile catalysts that can both produce clean energy H2 and treat wastewater is an important matter to solve energy shortages and wastewater pollution. Herein, a feather-like NiCoP supported on NF was synthesized via the two-step hydrothermal-phosphorization process. NiCoP/NF requires only overpotentials of 44 and 203 mV to reach 10 mA cm−2 for HER and OER in 1 M KOH, respectively. Besides, NiCoP/NF requires only 1.13 V (vs RHE) to achieve 10 mA cm−2 in 1 M KOH containing 0.33 M urea. DFT calculation shows that NiCoP exhibits enhanced DOS in the Fermi level attachment, which promotes charge transfer. Subsequently, the trifunctional NiCoP/NF, for overall water splitting, requires a lower potential of 1.48 V to gain 10 mA cm−2 in 1 M KOH. For urea electrolysis, NiCoP/NF requires just 1.36 V to drive 10 mA cm−2 in 1 M KOH with 0.33 M urea. This work provides extraordinary insights into electrolytic hydrogen production and wastewater treatment through simple preparative methods. The performance of the prepared catalyst is at a high level in non-noble metal.
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