Citrate ions-modified NiFe layered double hydroxide for durable alkaline seawater oxidation

被引：2
|
作者：
Song, Jiayun [1 ]
Li, Zixiao [2 ]
Sun, Shengjun [1 ]
Yang, Chaoxin [1 ]
Cai, Zhengwei [1 ]
Wang, Xiaoyan [1 ]
Yue, Meng [1 ]
Zhang, Min [1 ]
Wang, Hefeng [1 ]
Farouk, Asmaa [3 ]
Hamdy, Mohamed S. [3 ]
Sun, Xuping [1 ,2 ,4 ]
Tang, Bo [1 ,5 ]
机构：
[1] Shandong Normal Univ, Coll Chem Chem Engn & Mat Sci, Jinan 250014, Shandong, Peoples R China
[2] Univ Elect Sci & Technol China, Inst Fundamental & Frontier Sci, Chengdu 610054, Sichuan, Peoples R China
[3] King Khalid Univ, Fac Sci, Dept Chem, POB 9004, Abha 61413, Saudi Arabia
[4] Sichuan Univ, West China Hosp, Ctr High Altitude Med, Chengdu 610041, Sichuan, Peoples R China
[5] Laoshan Lab, Qingdao 266237, Shandong, Peoples R China
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2025年 / 679卷
关键词：
Cl-; repulsion; Seawater oxidation; Citrate anion modification; NiFe layered double hydroxide; ELECTROCATALYST; EVOLUTION; OXALATE;
D O I：
10.1016/j.jcis.2024.10.086
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Seawater electrolysis taking advantage of coastal/offshore areas is acknowledged as a potential way of largescale producing H-2 to substitute traditional technology. However, anodic catalysts with high overpotentials and limited lifespans (caused by chloride-induced competitive chemical reactions) hinder the system of seawater electrolysis for H-2 production. Herein, we present a citrate anion (CA) modified NiFe layered double hydroxide nanosheet array on nickel foam (NiFe LDH@NiFe-CA/NF), which serves as an efficient and stable electrocatalyst towards long-term alkaline seawater oxidation. It requires only a low overpotential of 387 mV to achieve a current density of 1000 mA cm(-2), outperforming NiFe LDH/NF (414 mV). Moreover, NiFe LDH@NiFe-CA/NF exhibits continuous oxygen evolution testing for 300 h at 1000 mA cm(-2) due to its anti-corrosion
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页码：1 / 8
页数：8
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