Electrochemical Selective Nitrate Reduction: Pathways to Nitrogen and Ammonia Production.

Autor: Islam MM; Department of Chemistry, Jagannath University, Dhaka, 1100, Bangladesh., Abu Nayem SM; Department of Chemistry, Jagannath University, Dhaka, 1100, Bangladesh., Shah SS; Socio-Environmental Energy Science Department, Graduate School of Energy Science, Kyoto University, Yoshida-honmachi, Sakyo-ku, Kyoto, 606-8501, Japan., Islam MZ; Laboratory for Biomaterials and Bioengineering, Institute of Integrated Research, Institute of Science Tokyo, 2-3-10 Kanda-Surugadai, Chiyoda, Tokyo, 101-0062, Japan., Aziz MA; Interdisciplinary Research Center for Hydrogen Technologies and Carbon Management (IRC-HTCM), King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia., Saleh Ahammad AJ; Department of Chemistry, Jagannath University, Dhaka, 1100, Bangladesh.
Jazyk: angličtina
Zdroj: Chemical record (New York, N.Y.) [Chem Rec] 2024 Dec 23, pp. e202400206. Date of Electronic Publication: 2024 Dec 23.
DOI: 10.1002/tcr.202400206
Abstrakt: Nitrate (NO 3 - ) contamination from industrial, agricultural, and anthropogenic activities poses significant risks to human health and ecosystems. While traditional NO 3 - remediation methods are effective, they often generate secondary pollutants and incur high costs. Electrochemical NO 3 - reduction (ECNR) offers a sustainable alternative, converting NO 3 - into environmentally benign nitrogen (N 2 ) or valuable ammonia (NH 3 ). This review explores recent advancements in selective ECNR pathways for NO 3 - -to-N 2 and NO 3 - -to-NH 3 conversion, focusing on mechanistic insights, electrocatalyst development, and optimization strategies. Key factors influencing ECNR performance, such as electrode materials, electrolyte composition, and hydrogen evolution inhibition, are discussed. Additionally, the review highlights the role of single-atom, bimetallic, and nanostructured catalysts in enhancing faradaic efficiency, total N 2 removal, and selectivity, with particular attention to Pd-Cu systems. Strategies to address challenges like low selectivity and catalyst degradation are also explored. This review underscores the potential of ECNR as a viable alternative to the energy-intensive Haber-Bosch process for NH 3 production, aligning with global sustainability goals. Finally, we identify research gaps and propose future directions for improving the efficiency, stability, and scalability of ECNR technologies.
(© 2024 The Chemical Society of Japan and Wiley-VCH GmbH.)
Databáze: MEDLINE
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