Plasma activated electrolysis for cogeneration of nitric oxide and hydrogen from water and nitrogen

TitlePlasma activated electrolysis for cogeneration of nitric oxide and hydrogen from water and nitrogen
Publication TypeJournal Article
Year of Publication2019
AuthorsH. Patel, R.K Sharma, V. Kyriakou, A. Pandiyan, S. Welzel, M.CM van de Sanden, M.N Tsampas
JournalACS Energy Letters
Volume4
Issue9
Pagination2091–2095
Date Published09/2019
Abstract

With increasing global interest in renewable energy technology given the backdrop of climate change, storage of electrical energy has become particularly relevant. Most sustainable technologies (e.g., wind and solar) produce electricity intermittently. Thus, converting electrical energy and base molecules (i.e., H2O, N2) into energy-rich ones (e.g., H2, NH3) or chemical feedstock (e.g., NO) is of paramount importance. While H2O splitting is compatible with renewable electricity, N2 fixation is currently dominated by thermally activated processes. In this work, we demonstrate an all-electric route for simultaneous NO and H2 production. In our approach, H2O is reduced to H2 in the cathode of a solid oxide electrolyzer while NO is produced in the anode by the reaction of O2– species (transported via the electrolyte) and plasma-activated N2 species. High faradaic efficiencies up to 93% are achieved for NO production at 650 °C, and NO concentration is >1000 times greater than the equilibrium concentration at the same temperature and pressure.

DOI10.1021/acsenergylett.9b01517
Division

MaSF

Department

CEPEA

PID

47bade03c7ee725c69574cf629333890

Alternate TitleACS Energy Lett.

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