DataVXACS Energy LettersPaper
journal article·2020-11-13

Unveiling Electrode–Electrolyte Design-Based NO Reduction for NH3 Synthesis

DongYeon Kim, Dongyup Shin, Juheon Heo, Hyungseob Lim, Jung-Ae Lim, Hyung Mo Jeong, Beom-Sik Kim, Iljeong Heo, Inhwan Oh, Boreum Lee, Monika Sharma, Hankwon Lim, Hyungjun Kim, Youngkook Kwon

ACS Energy Letters· Volume 5· Issue 11
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Source abstract

Abstract

The electrochemical N2 reduction reaction has attracted interest as a potential alternative to the Haber–Bosch process, but a significantly low conversion efficiency and a significantly low ammonia production rate stimulate the need for alternatives. Here, we represent the electrochemical reduction of nitric oxide (NO) on a nanostructured Ag electrode in combination with a rationally designed electrolyte containing the EDTA–Fe2+ metal complex (EFeMC), which results in an ∼100% efficiency for NH3 with a current density of 50 mA/cm2 at −0.165 VRHE, without any degradation in catalytic activity or product selectivity up to 120 h. Economic analysis using itemized cost estimation predicted that the synthesis of ammonia from NO reduction in an EFeMC-designed electrolyte can be market competitive at an electricity price of $0.03 kWh–1 with a current density of >125 mA/cm2. Therefore, this approach opens an entirely new avenue of renewable electricity-driven ammonia synthesis.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storageNanomaterialsCatalysis & surfaces

OpenAlex topics: Ammonia Synthesis and Nitrogen Reduction · Advanced Photocatalysis Techniques · CO2 Reduction Techniques and Catalysts

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Center for Environment & Sustainable Resources, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea

Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea

School of Energy and Chemical Engineering and Emergent Hydrogen Technology R&D Center, Ulsan National Institute of Science and Technology, Ulsan 44919, Republic of Korea

School of Mechanical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea

Funding

Ulsan National Institute of Science and Technology · Korea Research Institute of Chemical Technology · National Research Council of Science and Technology · National Research Foundation of Korea · Korea Institute of Energy Technology Evaluation and Planning · Korea Institute for Advancement of Technology · Ulsan Metropolitan City Hall

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