铁掺杂和阴离子保护的协同策略实现了高效和稳健的海水电解

IF 4.2 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Chemical Communications Pub Date : 2025-07-18 DOI:10.1039/d5cc02784e

Li Yao , Jun Guo , Chaoxin Yang , Zixiao Li , Shengjun Sun , Meng Yue , Wei Zuo , Xixi Zhang , Hefeng Wang , Fatma A. Ibrahim , Mohamed S. Hamdy , Wenbo Lu , Xuping Sun , Bo Tang

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引用次数: 0

摘要

海水电解是一种很有前途的制氢方法，但产生腐蚀性氯（如氯化物和次氯酸盐）仍然是一个关键的挑战。本文通过Fe掺杂和NiMoO4/NF的后续磷化，成功合成了FeNiP/MoOx/NiMoO4/NF电催化剂，该催化剂对碱性海水氧化具有优异的活性和稳定性。FeNiP/MoOx/NiMoO4/NF需要349 mV的过电位才能达到1000 mA cm−2的电流密度(j)，在相同的电流密度下可连续工作500 h。此外，配备FeNiP/MoOx/NiMoO4/NF的阴离子交换膜电解槽表现出优异的性能，仅需2.12 V即可达到300 mA cm−2，并保持180 h的稳定运行。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

A synergistic strategy of Fe doping and anion protection enables efficient and robust seawater electrolysis†

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A synergistic strategy of Fe doping and anion protection enables efficient and robust seawater electrolysis†

Seawater electrolysis is a promising method for producing hydrogen, but the generation of corrosive chlorine species (e.g., chloride and hypochlorite) at anodes remains a critical challenge. Herein, with the use of Ni foam (NF) as a catalyst support, we developed a FeNiP/MoO_x/NiMoO₄/NF as the anode for alkaline seawater oxidation. The incorporation of Fe enhances charge transfer and promotes the generation of active sites, and the in situ generated PO₄³⁻ and MoO₄²⁻ species effectively repel Cl⁻, thereby significantly enhancing the electrode's corrosion resistance. This electrode demands a low overpotential of 349 mV to drive 1000 mA cm⁻² and is capable of continuous operation for 500 h in alkaline seawater.

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来源期刊

Chemical Communications 化学-化学综合

CiteScore

8.60

自引率

4.10%

发文量

2705

审稿时长

1.4 months

期刊介绍： ChemComm (Chemical Communications) is renowned as the fastest publisher of articles providing information on new avenues of research, drawn from all the world''s major areas of chemical research.