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Electrochemical and electrocatalytic reaction characteristics of boron-incorporated graphene via a simple spin-on dopant process†
Sang-Seok Lee,John Hong,Seong-Ho Beak,Sangyeon Pak,Juwon Lee,Hyeon Suk Shin,Docheon Ahn,Woong-Ki Hong,SeungNam Cha,Il-Kyu Park
Journal of Materials Chemistry A Pub Date : 03/14/2018 00:00:00 , DOI:10.1039/C7TA09517A
Abstract

Chemical doping is one of the most effective methods to tune the electrochemical properties of graphene. We report a simple and relatively low-temperature process for the fabrication of boron doped graphene by using a spin-on dopant (SOD) method. SOD-treated graphene was successfully doped with boron atoms at a temperature lower than 600 °C. The fabricated boron doped graphene exhibits a specific capacitance of 4 mF cm−2, as well as a high-rate performance of 91.9% at 200 mV s−1 as an electrode material for pseudocapacitors. It also shows excellent oxygen reduction activity and durability with a current retention of 91.4% and methanol-tolerance properties. These features are beneficial for catalyst applications in the oxygen reduction reaction due to well-engineered boron sites with high electrical conductivity and many active sites for electrochemical reactions.

Graphical abstract: Electrochemical and electrocatalytic reaction characteristics of boron-incorporated graphene via a simple spin-on dopant process
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