Journal ArticleDOI
Electrocatalytic reduction of nitrate: Fundamentals to full-scale water treatment applications
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TLDR
In this paper, the fundamental principles necessary to understand electrochemical reduction technologies and how to apply them are described, and the applicability for treating drinking water matrices using electrochemical processes is analyzed, including existing implementation of commercial treatment systems.Abstract:
Nitrate contamination in surface and ground waters is one of this century’s major engineering challenges due to negative environmental impacts and the risk to human health in drinking water. Electrochemical reduction is a promising water treatment technology to manage nitrate in drinking water. This critical review describes the fundamental principles necessary to understand electrochemical reduction technologies and how to apply them. The focus is on electrochemical nitrate reduction mechanisms and pathways that form undesirable products (nitrite, ammonium) or the more desirable product (dinitrogen). Factors influencing the conversion rates and selectivity of electrochemical nitrate reduction, such as electrode material and operating parameters, are also described. Finally, the applicability for treating drinking water matrices using electrochemical processes is analyzed, including existing implementation of commercial treatment systems. Overall, this critical review contributes to the understanding of the potential applications and constraints of electrochemical reduction to manage nitrate in drinking waters and highlights directions for future research required for implementation.read more
Citations
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Journal ArticleDOI
A Roadmap to the Ammonia Economy
Douglas R. MacFarlane,Pavel V. Cherepanov,Jaecheol Choi,Bryan H. R. Suryanto,Rebecca Y. Hodgetts,Jacinta Bakker,Federico M. Ferrero Vallana,Alexandr N. Simonov +7 more
TL;DR: In this article, the pathways forward in regard to current-day technology (generation 1) and immediate future approaches (generation 2) that rely on Haber-Bosch process are discussed.
Journal ArticleDOI
Unveiling the Activity Origin of a Copper-based Electrocatalyst for Selective Nitrate Reduction to Ammonia.
TL;DR: The combined results of online differential electrochemical mass spectrometry (DEMS) and density functional theory (DFT) calculations demonstrated that the electron transfer from Cu 2 O to Cu at the interface could facilitate the formation of * NOH intermediate and suppress the hydrogen evolution reaction, leading to high selectivity and Faradaic efficiency.
Journal ArticleDOI
Electrochemical reduction of nitrate to ammonia via direct eight-electron transfer using a copper–molecular solid catalyst
Gao-Feng Chen,Gao-Feng Chen,Yifei Yuan,Haifeng Jiang,Ren Shiyu,Liang-Xin Ding,Lu Ma,Tianpin Wu,Jun Lu,Haihui Wang +9 more
TL;DR: In this paper, a copper-incorporated crystalline 3,4,9,10-perylenetetetracarboxylic dianhydride was used to synthesize ammonia from nitrate ions.
Journal ArticleDOI
Electrochemical ammonia synthesis via nitrate reduction on Fe single atom catalyst.
Zhen-Yu Wu,Mohammadreza Karamad,Xue Yong,Qizheng Huang,David A. Cullen,Peng Zhu,Chuan Xia,Qunfeng Xiao,Mohsen Shakouri,Feng-Yang Chen,Jung Yoon Timothy Kim,Yang Xia,Kimberly N. Heck,Yongfeng Hu,Michael S. Wong,Qilin Li,Ian D. Gates,Samira Siahrostami,Haotian Wang +18 more
TL;DR: In this article, a selective and active nitrate reduction to ammonia on Fe single atom catalysts was reported, with a maximal ammonia Faradaic efficiency of 75% and a yield rate of up to 20,000μg/h−1 mgcat.−1 (0.46mol/m cm−2).
Journal ArticleDOI
Electrocatalytic nitrate reduction for sustainable ammonia production
TL;DR: Van Langevelde et al. as discussed by the authors developed catalysts for the oxygen reduction reaction, and was a visiting student at the Institute of Chemical Research of Catalonia (ICIQ) and Delft University of Technology.
References
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