Unveiling the Role of Charge Transfer in Enhanced Electrochemical Nitrogen Fixation at Single-Atom Catalysts on BX Sheets (X = As, P, Sb)

Autor: Mohammad Zafari, Muhammad Umer, Arun S. Nissimagoudar, Rohit Anand, Miran Ha, Sohaib Umer, Geunsik Lee, Kwang S. Kim
Rok vydání: 2022
Předmět:
Zdroj: The Journal of Physical Chemistry Letters. 13:4530-4537
ISSN: 1948-7185
DOI: 10.1021/acs.jpclett.2c00918
Popis: To tune single-atom catalysts (SACs) for effective nitrogen reduction reaction (NRR), we investigate various transition metals implanted on boron-arsenide (BAs), boron-phosphide (BP), and boron-antimony (BSb) using density functional theory (DFT). Interestingly, W-BAs shows high catalytic activity and excellent selectivity with an insignificant barrier of only 0.05 eV along the distal pathway and a surmountable kinetic barrier of 0.34 eV. The W-BSb and Mo-BSb exhibit high performances with limiting potentials of -0.19 and -0.34 V. The Bader-charge descriptor reveals that the charge transfers from substrate to *NNH in the first protonation step and from *NH
Databáze: OpenAIRE