Journal
APPLIED CATALYSIS A-GENERAL
Volume 602, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apcata.2020.117670
Keywords
Urea oxidation; Oxygen defect; Ultrathin nanosheet; CoMoO4
Categories
Funding
- National Natural Science Foundation of China [21377060]
- Jiangsu province graduate training innovation project [SJKY19_0952, SJKY19_0953]
Ask authors/readers for more resources
CoMoO4 ultrathin nanosheets@nickel foam (NF) array electrode is fabricated by a facile in-situ assembly approach, and the oxygen defect (VO) concentration can be simply controlled by controlling annealing atmosphere. Moreover, the effects of VO and Mo (V) species on UOR activity are investigated. It is found that the VO-rich CoMoO4@NF arrays exhibit an excellent current efficiency of 144.29 mA cm(-2) at 550 mV for UOR, which is about 7 times higher than that of the VO-poor CoMoO4@NF arrays. The remarkably improved activity of VO-rich CoMoO4@NF arrays is mainly attributed to the high VO concentration, as well associated Mo (V). VO as the active sites for the adsorption and activation of urea and Mo (V) sites as an electron transfer bridge have greatly enhanced the UOR activity. This work demonstrates that accurate control of VO concentration, as well associated metal species, favors for the development of efficient non-precious metals catalysts.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available