Facile synthesis of boron and nitrogen-dual-doped graphene sheets anchored platinum nanoparticles for oxygen reduction reaction. (10th March 2016)

• Record Type: Journal Article
• Authors: Zhu, Jinliang; He, Guoqiang; Tian, Zhiqun; Liang, Lizhe; Shen, Pei Kang
• Is Part Of: Electrochimica acta. Volume 194(2016)
• Page Start: 276
• Page End: 282
• Publication Date: 2016-03-10
• Subjects: Boron and nitrogen-dual-doped -- Graphene -- Platinum -- Oxygen reduction reaction -- PEMFCs; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2016.01.222
• Languages: English
• ISSNs: 0013-4686

Abstract

Graphical abstract: Boron and nitrogen-dual-doped graphene sheets was facilely synthesized and it highly improved Pt for ORR. Highlights: A novel strategy for the facile synthesis of boron and nitrogen-dual-doped graphene sheets (BNG) is reported. The synergistic improvement of BNG on Pt for ORR is investigated for the first time. The BNG ingeniously anchor Pt nanoparticles ensuring Pt/BNG an excellent durability. The Pt/BNG catalyst shows 60 mV more positive half-wave potential and nearly three times the mass activity compared with Pt/C. Abstract: Boron and nitrogen-dual-doped graphene sheets (BNG) has been conveniently synthesized by a novel strategy, including one-step pyrolysis of nitrogen and boron-containing borane-tert-butylamine complex impregnated with cobalt ions. The BNG with a relatively high boron and nitrogen-doping level is used it as Pt support for oxygen reduction reaction for the first time. An excellent electron-donating of BNG to Pt that facilitates the reduction of O2 and strengthens BNG/Pt interaction has been evidenced. The novel Pt/BNG catalyst exhibits highly improved electrocatalytic activity and stability compared with commercial Pt/C. In O2 -saturated 0.1 M HClO4, the Pt/BNG catalyst shows a mass activity of 213.6 mA mg −1 Pt at 0.9 V vs. RHE, which is nearly three times as high as that of commercial Pt/C. In addition, the Pt/BNG catalyst displays much higher stability than Pt/C in continuous potential cycling tests.