From Hemoglobin to Porous N鈥揝鈥揊e-Doped Carbon for Efficient Oxygen Electroreduction

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• 作者：Koroush Sasan ; Aiguo Kong ; Yuan Wang ; Mao Chengyu ; Quanguo Zhai ; Pingyun Feng
• 刊名：Journal of Physical Chemistry C
• 出版年：2015
• 出版时间：June 18, 2015
• 年：2015
• 卷：119
• 期：24
• 页码：13545-13550
• 全文大小：380K
• ISSN：1932-7455

文摘

Nitrogen鈥搒ulfur鈥搃ron-doped porous carbon material with high surface area (1026 m² g^鈥?) and large pore size is synthesized by the pyrolysis of hemoglobin, an abundant and inexpensive natural compound, with mesoporous silica foam (MS) as a template and thiocarbamide (TCA) as an additional sulfur source in an argon atmosphere. Our results indicated that as compared to the commercial 20% Pt/C catalyst, the synthesized catalyst exhibits not only higher current density and stability but also higher tolerance to crossover chemicals. More importantly, the synthetic method is simple and inexpensive.