Chinese Journal of Catalysis ›› 2024, Vol. 58: 25-36.DOI: 10.1016/S1872-2067(23)64605-4

• Perspective • Previous Articles     Next Articles

Electrocatalytic nitrate reduction to ammonia: A perspective on Fe/Cu-containing catalysts

Lili Chena, Yanheng Haoa, Jianyi Chua, Song Liub, Fenghua Baia,*(), Wenhao Luoa,*()   

  1. aInner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, Inner Mongolia, China
    bChemical Engineering and Resource Utilization, College of Chemistry, Northeast Forestry University, Harbin 150040, Heilongjiang, China
  • Received:2023-11-02 Accepted:2024-01-15 Online:2024-03-18 Published:2024-03-28
  • Contact: *E-mail: w.luo@imu.edu.cn (W. Luo),f.h.bai@imu.edu.cn (F. Bai).
  • About author:Fenghua Bai (College of Chemistry and Chemical Engineering, Inner Mongolia University) obtained her Ph.D. in 2008 from Inner Mongolia University (China). Since 2008, she has been working in Inner Mongolia University as an associate professor. In 2012, she was a visiting scholar at University of Exeter in UK. She has been a vice dean of School of Chemistry and Chemical Engineering, Inner Mongolia University since 2015. She was appointed as an associate editor of Mater. Today Sustain. since 2023. Her research interests lie in the development of new catalytic materials for the sustainable production of chemicals from biomass, carbon dioxide, syngas or waste streams.
    Wenhao Luo (College of Chemistry and Chemical Engineering, Inner Mongolia University) obtained his Ph.D. in Inorganic Chemistry and Catalysis in 2014 from Utrecht University (Netherlands), supervised by Prof. Bert Weckhuysen and Prof. Pieter Bruijnincx. Afterwards, he worked with Prof. Johannes Lercher as a postdoctoral fellow at Technical University of Munich (Germany). In 2016‒2023, he joined Prof. Tao Zhang's group in Dalian Institute of Chemical Physics (DICP) as an associate professor. He was a visiting scholar in the group of Prof. Andrew Beale in 2017 at University College London (UK). He became a full professor at Inner Mongolia University in 2023, where he has worked since then on heterogeneous catalysis, environmental catalysis, operando spectroscopic characterization, renewable energy, and sustainable chemistry.
  • Supported by:
    National Natural Science Foundation of China(22078316);funding of Inner Mongolia University(10000-23112101/081);funding of Inner Mongolia Youth Science and Technology Talents(NJYT24019)

Abstract:

Electrocatalytic reduction reaction of nitrate (NO3RR) to ammonia is becoming ever more pivotal for the sustainable production of NH3, alleviating the nitrate pollution and even for rebalancing the nitrogen cycle globally. Considerable efforts have been devoted to the rational development of catalyst systems in electrocatalytic NO3RR to NH3, and Fe/Cu-containing catalysts have shown significant advantages and are currently in the spotlight which have addressed remarkable attention and academic interest. In this Perspective, we first briefly discuss the possible reaction pathways of electrocatalytic NO3RR to NH3. Emphasis is put on the three catalyst approaches for enhancing the NO3RR performance, based on the selected case studies of the most representative Fe/Cu-containing catalysts. Furthermore, this Perspective assesses the recent progress on the utility and application of the state-of-the-art in situ characterization technologies applied in recent showcases of electrocatalytic NO3RR to NH3, with a special focus on spectroscopies. Finally, the open challenges and outlook regarding the rational design of efficient electrocatalysts, the development of correlative in situ characterization technologies and the further coupling promising reactions for production of value-added products are examined for inspiring the future work.

Key words: Electrocatalysis, Nitrate reduction reaction, Ammonia synthesis, Fe/Cu-containing catalyst, In situ characterization