Electrocatalytic Activity of BN Codoped Graphene Oxide Derived from Carbon Dioxide

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• 作者：Ayeong Byeon ; Jae W. Lee
• 刊名：Journal of Physical Chemistry C
• 出版年：2013
• 出版时间：November 21, 2013
• 年：2013
• 卷：117
• 期：46
• 页码：24167-24173
• 全文大小：397K
• 年卷期：v.117,no.46(November 21, 2013)
• ISSN：1932-7455

文摘

The formation of boron and nitrogen (BN) codoped graphene oxide (GO) from carbon dioxide (CO₂) was accomplished using ammonia borane (NH₃BH₃) as a reducing agent. This graphene-based material was produced in two sequential processes (carbon fixation and pyrolysis) under moderate reaction conditions. One important potential application for the graphene-based material is as catalysts for oxygen reduction reaction (ORR) in fuel cell electrodes. This utilization is supported by the fact that B and N are incorporated into the carbon lattice and the BN insertion improves the electro-catalytic activity for ORR. Electrochemical measurements of BN codoped GO catalysts confirmed the activity for oxygen reduction reaction. The origin of the electro-catalytic activity was elucidated by identifying the insertion of B and N atoms as BCO₂ and pyrrolic N in X-ray photoelectron spectroscopy.