Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7707010 | International Journal of Hydrogen Energy | 2018 | 10 Pages |
Abstract
In this work, we have prepared a series of CuxNi1-xCo2O4 (x = 0, 0.2, 0.4, 0.5, 0.6, 0.8, and 1) nanowires with a diameter of approximately 30 nm, which were characterized by X-ray powder diffractometry, scanning and transmission electron microscopy, and X-ray photoelectron spectrometry. For the first time, the catalytic activity of these CuxNi1-xCo2O4 nanowires in ammonia borane (AB) hydrolysis was investigated, and it was found that a significant synergistic effect exists between NiCo2O4 and CuCo2O4 in the hydrolytic reaction. Among these CuxNi1-xCo2O4 samples, the Cu0.6Ni0.4Co2O4 nanowires showed the highest turnover frequency (TOF) of 119.5 molhydrogen minâ1 molcatâ1. This value is 1.66 times as high as that for CoP nanoparticles, which is the most active noble-metal-free catalyst towards AB hydrolysis ever reported in the literature. Because of the low cost and high catalytic performance, the Cu0.6Ni0.4Co2O4 nanowires can be a robust catalyst towards AB hydrolysis in practical applications.
Related Topics
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Authors
Dongsheng Lu, Jinyun Liao, Shoudeng Zhong, Yi Leng, Shan Ji, Hui Wang, Rongfang Wang, Hao Li,