Co-, N-, and S-Tridoped Carbon Derived from Nitrogen- and Sulfur-Enriched Polymer and Cobalt Salt for Hydrogen Evolution Reaction

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• 作者：Wenfang Deng ; Hongmei Jiang ; Chao Chen ; Lu Yang ; Youming Zhang ; Shuqin Peng ; Shuqin Wang ; Yueming Tan ; Ming Ma ; Qingji Xie
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2016
• 出版时间：June 1, 2016
• 年：2016
• 卷：8
• 期：21
• 页码：13341-13347
• 全文大小：498K
• 年卷期：0
• ISSN：1944-8252

文摘

A series of cobalt and heteroatom (N and/or S) doped carbon materials were prepared and explored as electrocatalysts for hydrogen evolution reaction (HER). The most active catalyst is a Co-, N-, and S-tridoped carbon (CoNS–C), which was prepared through heat treatment of nitrogen- and sulfur-enriched poly(m-aminobenzenesulfonic acid) and cobalt(II) nitrate, followed by acid leaching. The presence of cobalt–heteroatom complexes in CoNS–C is confirmed and identified as highly active molecule catalytic centers for HER. The overpotential of CoNS–C is 180 mV at 10 mA cm^–2 in 0.5 M aqueous H₂SO₄. Besides the high HER activity, the CoNS–C also shows excellent durability and can be produced readily in large quantities. This work may have provided a new and simple route in the design and batch-synthesis of highly active and durable carbonaceous electrocatalysts for HER.