An Fe-MOF nanosheet array with superior activity towards the alkaline oxygen evolution reaction

被引：110

作者：

Zhang, Xiaoxue ^{[1
]}

Liu, Qin ^{[1
]}

Shi, Xifeng ^{[2
]}

Asiri, Abdullah M. ^{[3
,4
]}

Sun, Xuping ^{[1
]}

机构：

[1] China West Normal Univ, Sch Chem & Chem Engn, Key Lab Sichuan Prov, Chem Synth & Pollut Control, Nanchong 637002, Sichuan, Peoples R China

[2] Shandong Normal Univ, Coll Chem Chem Engn & Mat Sci, Jinan 250014, Shandong, Peoples R China

[3] King Abdulaziz Univ, Fac Sci, Dept Chem, POB 80203, Jeddah 21589, Saudi Arabia

[4] King Abdulaziz Univ, Ctr Excellence Adv Mat Res, POB 80203, Jeddah 21589, Saudi Arabia

来源：

INORGANIC CHEMISTRY FRONTIERS | 2018年 / 5卷 / 06期

关键词：

LAYERED DOUBLE HYDROXIDE; METAL-ORGANIC FRAMEWORKS; WATER OXIDATION CATALYST; NEUTRAL AQUEOUS-SOLUTION; NANOWIRE ARRAY; EFFICIENT ELECTROCATALYST; ENHANCED ACTIVITY; THIN-FILMS; PERFORMANCE; ELECTRODE;

D O I：

10.1039/c8qi00163d

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

It is highly desired to develop high-performance non-noble-metal electrocatalysts for the oxygen evolution reaction (OER) in alkaline solutions. In this communication, we report the hydrothermal synthesis of an Fe-MOF nanosheet array on nickel foam (Fe-MOF/NF) using aqueous Fe3+ and terephthalic acid as precursors. Such an Fe-MOF/NF shows superior electrocatalytic performance towards the OER in 1.0 M KOH with a low overpotential of 240 mV at 50 mA cm(-2) and a small Tafel slope of 72 mV dec(-1). Notably, this catalyst also exhibits high long-term electrochemical durability to maintain its activity for at least 30 h. Moreover, this catalyst electrode achieves a high turnover frequency of 0.74 mol O-2 per s at an overpotential of 300 mV.

引用

页码：1405 / 1408

页数：4

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