Size-controllable carbon spheres doped Ni (II) for enhancing the catalytic oxidation of methanol

Authors

YIFEN HU
PENGYU GAO
ZHEN XU
CHUAN ZHANG
LIZHEN HUANG
YUNTING HU
YARUI AN
YINGYING GU

Abstract

Ni(II)/CSs were prepared using a simple two-step hydrothermal method. The morphology and composition of the catalysts were studied with scanning electron microscope, transmission electron microscope, and X-ray diffraction. Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy showed that the surface of the prepared carbon spheres was rich in hydroxyl groups, which was beneficial to remove CO intermediates, and therefore, improving the catalytic efficiency and the antipoisoning ability of the catalysts. The results of cyclic voltammetry and chronoamperometry showed that the electrocatalytic activity and stability of Ni(II)/CSs were higher than that of unloaded NiAc under alkaline environment. When the nickel content was 5 wt.%, the peak oxidation current density of methanol on Ni(II)/CSs electrocatalyst reached the maximum of 34.54 mA/cm2, which was about 1.8 times that of unloaded NiAc. These results indicate that Ni(II)/CSs has potential applications in the electrocatalytic oxidation of methanol.

DOI

10.3906/kim-2009-77

Keywords

Methanol oxidation reaction, size-controllable carbon spheres, nickel-based materials

First Page

248

Last Page

260

Recommended Citation

HU, YIFEN; GAO, PENGYU; XU, ZHEN; ZHANG, CHUAN; HUANG, LIZHEN; HU, YUNTING; AN, YARUI; and GU, YINGYING (2021) "Size-controllable carbon spheres doped Ni (II) for enhancing the catalytic oxidation of methanol," Turkish Journal of Chemistry: Vol. 45: No. 1, Article 24. https://doi.org/10.3906/kim-2009-77
Available at: https://journals.tubitak.gov.tr/chem/vol45/iss1/24