Boosting nitrate electrosynthesis controlled by top-bridge mixed adsorption of 2*NOH over in-situ amorphous PdS2 nanoclusters
Year: 2025
Type: article
Abstract: Amorphous nanomaterials with only short-range order at the atomic scale serve as the promising photo-/electrocatalysts widely used in water splitting for hydrogen production and electrochemical nitrogen fixation. Herein, amorphous PdS 2 nanoclusters (a-PdS 2 NCs) are homogeneously anchored on the surface of 1D poly(1-vinyl-3-ethylimidazolium bromide) functionalized polypyrrole nanotubes (PVEIB/PPyNTs) by the in situ induced growth. Taking N 2 as the N source, the obtained a-PdS 2 NCs@PVEIB/PPyNTs exhibit excellent electrocatalytic nitrogen oxidation reaction (NOR) performance, with the highest NO 3 − yield (56.59 μg h −1 mg −1 act. ) and Faradic efficiency (4.79 %) at 2.05 V (vs. RHE). Remarkable stability and selectivity for NOR are demonstrated by the consistent NO 3 − yield and Faradaic efficiency over six cycles, with no detectable NO 2 − . Theoretical calculations indicate that for PdS 2 with a unique amorphous structure, the lower energy barrier can be obtained by the mixed adsorption mode (one at top site, and the other at bridge site) in the step for the break of *HONNOH to 2*NOH, favoring the NOR process. This work is expected to stimulate further research and provide valuable insights into the application of amorphous nanomaterials in nitrate electrosynthesis.
Source: Chemical Engineering Journal
Authors: Hui Mao, Ziyi Wang, Shengke Ma, Shuyao Wu, Qiong Wu, Daliang Liu, Rui Zhang, Hui Li, Tianyi Ma, Xueyan Liu
Institutions: Liaoning University, RMIT University, Shenyang Medical College
Language: English
Field: Energy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,830
Funders: European Commission, Cooperative Research Centres, Australian Government Department of Industry, Natural Science Foundation of Liaoning Province, Australian Renewable Energy Agency, Department of Education of Liaoning Province, Foundation of Liaoning Province Education Administration, Government of Western Australia, Liaoning Revitalization Talents Program, Australian Research Council, Centre of Excellence in Future Low-Energy Electronics Technologies, Australian Research Council
Awards: Rechargeable lithium carbon dioxide battery - catalyst design to prototype , Engineering vanadium oxide-based cathode for aqueous ammonium ion batteries, G392500250, G4507585474, Monolithic Solar Thermal Photocatalytic Membrane for Hydrogen Production, G4647303866, G5258704741, G5888140453, G6527585448, G6558582433, Sustainable Electrolysis via Functional Hybrids for Ammonia Production, ARC Research Hub for Intelligent Energy Efficiency in Future Protected Cropping, G74262681, G7765776526
OpenAlex ID: W4411085906