Amorphous nickel tungstate nanocatalyst boosts urea electrooxidation

Wang，Lu1,2; Zhu，Shangqian2; Wang，Yian2; Liu，Zhipeng3; Liu，Yushen2; Wang，Qi4; Gu，Meng4; Li，Kedi5; Sun，Xianda3; Yang，Liwei1; Shao，Minhua2,6

2023-03-15

10.1016/j.cej.2023.141826

CHEMICAL ENGINEERING JOURNAL   Impact Factor & Quartile

1385-8947

1873-3212

Urea oxidation reaction (UOR) is an important reaction for achieving a sustainable and clean energy conversion. The reaction rates of UOR on the commonly used Ni-based electrocatalysts, however, are still limited. In this study, an amorphous NiWO nanomaterial synthesized via a facile chemical co-precipitation method is developed as a novel and efficient catalyst for UOR. Impressively, the maximum current density of the prepared amorphous NiWO is almost two orders of magnitude higher than that of the crystalline counterpart. The superior activity is attributed to not only the enrichment of electrochemically active sites, but also the more suitable binding energies toward urea reactant and CO product on the amorphous NiWO as revealed by in situ infrared spectroscopy and theoretical calculations. This work opens up new insights into the development of cost-effective catalysts as well as indicates catalyst phase engineering as a promising strategy for enhancing the UOR performance.

Amorphous Density functional theory calculation Electrooxidation of urea In situ spectroscopy Nickel tungstate

SCI

English

Others

National Natural Science Founda-tion of China[22008189] ; Natural Science Basic Research Plan in Shaanxi Province of China[2019JQ-587] ; Fundamental Research Funds for the Central Universities[300102282101] ; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)[SMSEGL20SC01] ; Research Grants Council["16310419","16308420"] ; Innovation and Technology Commission[ITC-CNERC14EG03] ; Research Grants Council of the Hong Kong Special Administrative Region[HKUST PDFS2021-6S08]

Engineering

Engineering, Environmental ; Engineering, Chemical

WOS:000938938000001

ELSEVIER SCIENCE SA

ENGINEERING

2-s2.0-85148034159

Scopus

1.School of Civil Engineering,Key Laboratory of Water Supply & Sewage Engineering of Ministry of Housing and Urban-rural Development,Chang'an University,Xi'an,710061,China
2.Department of Chemical and Biological Engineering,The Hong Kong University of Science and Technology,Kowloon,Clear Water Bay, Hong Kong,China
3.Key Laboratory of Thermo-Fluid Science and Engineering of Ministry of Education,School of Energy and Power Engineering,Xi'an Jiaotong University,Xi'an,710049,China
4.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
5.Department of Chemistry,City University of Hong Kong,Kowloon,83 Tat Chee Avenue,Hong Kong
6.Energy Institute,Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou),Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution,The Hong Kong University of Science and Technology,Kowloon,Clear Water Bay,Hong Kong

Wang，Lu,Zhu，Shangqian,Wang，Yian,et al. Amorphous nickel tungstate nanocatalyst boosts urea electrooxidation[J]. CHEMICAL ENGINEERING JOURNAL,2023,460.

Wang，Lu.,Zhu，Shangqian.,Wang，Yian.,Liu，Zhipeng.,Liu，Yushen.,...&Shao，Minhua.(2023).Amorphous nickel tungstate nanocatalyst boosts urea electrooxidation.CHEMICAL ENGINEERING JOURNAL,460.

Wang，Lu,et al."Amorphous nickel tungstate nanocatalyst boosts urea electrooxidation".CHEMICAL ENGINEERING JOURNAL 460(2023).