Journal
MICROPOROUS AND MESOPOROUS MATERIALS
Volume 313, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.micromeso.2020.110852
Keywords
Electrocatalyst; Nitrogen reduction reaction; Porous carbon; Octahedron; Non-precious metal
Categories
Funding
- National Natural Science Foundation of China [21276132]
- Key Research and Development Program in Shandong Province [2019GSF109038]
- Postdoctoral Applied Research Project of Qingdao
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The study developed a highly efficient and cost-effective non-precious metal electrocatalyst, MoP@PPC octahedron, synthesized through a metal-organic framework-assisted strategy. The catalyst showed good performance and high ammonia yield rate in nitrogen reduction reaction, attributed to the synergistic effects of P-dopant, porous carbon, and stable MoP nanoparticle.
Developing highly efficient and affordable non-precious metal electrocatalysts toward nitrogen reduction reaction (NRR) is an important step for economical production of ammonia. Molybdenum phosphide@phosphorusdoped porous carbon (MoP@PPC) octahedron is synthesized through a metal-organic framework-assisted strategy characteristic by controlled carbonization and phosphidation. The purpose-synthesized MoP@PPC octahedron acts as a high-performance NRR electrocatalyst toward N-2 electroreduction in 0.1 M HCl under ambient conditions. The MoP@PPC exhibits a high NH3 yield rate of 28.73 mu g h(-1) mg(cat)(-1). and Faraday efficiency of 2.48% at -0.3 V versus RHE. The enhanced NRR performance of MoP@PPC electrocatalyst can be attributed to the synergistic effects of P-dopant, porous carbon and stable MoP nanoparticle. This study reveals the unique potential of non-precious metal electrocatalyst derived from metal-organic frameworks for NRR.
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