title: Electrochemical properties of boron-doped ordered mesoporous carbon as electrocatalyst and Pt catalyst support.
abstract: The electrochemical properties of boron-doped ordered mesoporous carbon (BOMC) as an electrode material and Pt catalyst support were investigated. The BOMC was synthesized and its structure was examined by transmission electron microscopy (TEM), scanning electron microscopy, nitrogen adsorption-desorption, X-ray diffraction, Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS). More defective sites were introduced into OMC by the doping of boron. Six electroactive compounds were employed to investigate their electrochemical responses on BOMC and OMC modified glassy carbon electrodes. The BOMC, with more defective sites, exhibited high activity toward the electroactive compounds. The property of BOMC of supporting platinum nanoparticle catalyst was examined. Pt nanoparticles were loaded onto BOMC and OMC, and this was confirmed by TEM, XPS and thermogravimetric analysis. Pt nanoparticles with an average diameter of 2.62 nm were deposited on BOMC. The doping of boron into OMC facilitates the dispersion of Pt nanoparticles. Pt nanoparticles supported on BOMC (Pt-BOMC) and Pt nanoparticles supported on OMC (Pt-OMC) were electrochemically characterized. The electrocatalytic activity of Pt-BOMC toward methanol oxidation reaction was compared with that of Pt-OMC and commercial Pt-C catalyst. The results show that the electrocatalytic activity of BOMC is significantly higher than that of other used catalysts.
authors.affiliation: Faculty of Chemistry, Northeast Normal University, 130024 Changchun, People's Republic of China.
authors.forename: Anaclet
authors.initials: A
authors.lastname: Nsabimana
authors.affiliation: Faculty of Chemistry, Northeast Normal University, 130024 Changchun, People's Republic of China. Electronic address: baoxj133@nenu.edu.cn.
authors.forename: Xiangjie
authors.initials: X
authors.lastname: Bo
authors.affiliation: Faculty of Chemistry, Northeast Normal University, 130024 Changchun, People's Republic of China.
authors.forename: Yufan
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Faculty of Chemistry, Northeast Normal University, 130024 Changchun, People's Republic of China.
authors.forename: Mian
authors.initials: M
authors.lastname: Li
authors.affiliation: Faculty of Chemistry, Northeast Normal University, 130024 Changchun, People's Republic of China.
authors.forename: Ce
authors.initials: C
authors.lastname: Han
authors.affiliation: Faculty of Chemistry, Northeast Normal University, 130024 Changchun, People's Republic of China. Electronic address: guolp078@nenu.edu.cn.
authors.forename: Liping
authors.initials: L
authors.lastname: Guo
keywords: Biosensor; Boron doping; Methanol oxidation; Ordered mesoporous carbon; Platinum nanoparticles