DataVXAdvanced Functional MaterialsPaper
journal article·2025-02Open access

Concurrently Selective Electrosynthesis of Ammonia and Glycolic Acid Over Cathodic Single‐Atom Cobalt and Anodic PdNi Alloying Catalysts

Shengbo Zhang, Ke Li, Xinyuan Zhang, Yixing Ye, Tongfei Shi, Yong Jiang, Lirong Zheng, Yue Lin, Haimin Zhang

Advanced Functional Materials· Volume 35· Issue 6
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Abstract

Abstract Herein, an electrocatalytic coupling system for selective ammonia and glycolic acid production over cathodic single‐atom Co (Co─N─C) and anodic PdNi alloying nanoparticles on the carbonized cellulose (PdNi/CBC), respectively are reported. As a cathodic electrocatalyst for nitrate reduction reaction (NtrRR), the Co─N─C displays remarkably high activity, delivering an NH3 yield rate of 20.5 ± 2.7 mg h−1 mgcat.−1 with a Faradaic efficiency (FE) of 95.5 ± 2.8% at −0.5 V (vs RHE). In situ spectroscopy combined with theoretical calculations unveiled the NtrRR mechanism on Co─N4 site. As an anodic electrocatalyst for ethylene glycol oxidation reaction (EGOR), the PdNi/CBC shows a high FE of 96.6 ± 1.7% for glycolic acid (GA) production at 1.6 V (vs RHE) and robust stability of 168 h. Remarkably, a proof of concept experiment of coupling electrocatalytic NtrRR with EGOR demonstrates that only an applied potential of −0.1 V (vs RHE) is required to reach a current density of 10 mA cm−2 for co‐producing ammonia and glycolic acid. As a result, the coupled NtrRR‐EGOR system can achieve an NH3 yield rate of 6.0 ± 0.6 mg h−1 mgcat.−1 and a GA yield rate of 16.8 ± 1.7 mg h−1 mgcat.−1 at −0.7 V (vs RHE).
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Research context

Metals & alloysNanomaterialsCatalysis & surfaces

OpenAlex topics: Ammonia Synthesis and Nitrogen Reduction · Caching and Content Delivery · Nanomaterials for catalytic reactions

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

Affiliations

Key Laboratory of Materials Physics Centre for Environmental and Energy Nanomaterials Anhui Key Laboratory of Nanomaterials and Nanotechnology Institute of Solid State Physics HFIPS Chinese Academy of Sciences Hefei 230031 P. R. China

University of Science and Technology of China Hefei 230026 P. R. China

Key Laboratory of Agricultural Sensors Ministry of Agriculture School of Information and Artificial Intelligence Anhui Agricultural University Hefei 230036 P. R. China

China Shanghai Synchrotron Radiation Facility Shanghai Advanced Research Institute Chinese Academy of Sciences Shanghai 201800 P. R. China

Beijing Synchrotron Radiation Facility Institute of High Energy Physics Chinese Academy of Sciences 19B Yuquan Road Beijing 100049 P. R. China

Hefei National Research Center for Physical Sciences at the Microscale University of Science and Technology of China Hefei 230026 P. R. China

Funding

National Natural Science Foundation of China · Natural Science Foundation of Anhui Province

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