Novel microporous cobalt phosphonate: Efficient heterogeneous catalyst towards oxygen evolution reaction

被引：7
|
作者：
Xu, Wenbin [1 ]
Feng, Li [2 ]
Wang, Zhiyong [3 ]
Liu, Bingzhi [2 ]
Li, Xuhao [2 ]
Chen, Yuning [2 ]
机构：
[1] Nanchang Urban Planning & Design Inst, 599 Chunhui Rd, Nanchang 330038, Jiangxi, Peoples R China
[2] Guangdong Univ Technol, Sch Civil & Transportat Engn, Guangzhou 510006, Guangdong, Peoples R China
[3] Shenyang Univ Technol, Dept Basic Course, Shenyang 111003, Liaoning, Peoples R China
来源：
JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2020年 / 879卷
基金：
中国国家自然科学基金;
关键词：
Cobalt phosphonate; Nanocrystalline materials; Porous materials; Electrocatalyst; OER; WATER OXIDATION; PHOSPHATE; HYBRID; ELECTROCATALYSTS; OXIDE; NANOPARTICLES; PERFORMANCE; CO;
D O I：
10.1016/j.jelechem.2020.114786
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
In recent years, organic-inorganic hybrid transition metal-based phosphonate nanomaterials have gained immense attention due to their high electrocatalytic efficiency in oxygen evolution reaction (OER). Newly synthesized porous cobalt-based phosphonate materials i.e. CoNTO-1-3 and CoNTO-1-4 have been synthesized using nitrilotri (methylphosphonic acid) under the hydrothermal reaction condition without utilization of any structure directing agent. Among them, CoNTO-1-3 material displays high catalytic activity towards electrochemical OER having low overpotential value of 312 mV at 10 mA cm(-2) current density in 1.0 M basic (KOH) solution where Tafel slope was 61.1 mV dec(-1). Also, CoNTO-1-3 catalyst exhibits the good stability up to 25 h.
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页数：6
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