Ruthenium/titanium oxide interface promoted electrochemical nitrogen reduction reaction

Cai，Weizheng1; Jiang，Ya Fei3; Zhang，Jincheng1; Yang，Hongbin1; Zhang，Junming1; Xu，Cong Qiao3; Liu，Wei5; Li，Jun3,4; Liu，Bin1,2

2022-07-21

10.1016/j.checat.2022.05.009

Chem Catalysis   Impact Factor & Quartile

2667-1107

2667-1093

The electrochemical nitrogen reduction reaction (eNRR) offers a promising strategy to synthesize ammonia at ambient conditions. However, the selectivity and yield of ammonia are greatly impeded by the slow kinetics of the eNRR and the competing hydrogen evolution reaction (HER). Herein, we find that by growing Ru nanoparticles on rutile TiO, the intimate electronic coupling between Ru nanoparticles and TiO support is able to greatly promote the first protonation of N via an associative mechanism in the eNRR while suppressing the HER, resulting in a greatly improved ammonia Faradaic efficiency of 40.7% and yield of 10.4 μg h cm at −0.15 V versus the reversible hydrogen electrode (RHE) in 0.5 M KSO aqueous solution at room temperature and ambient pressure. Our work provides a general approach to achieve selective electrochemical reaction by controlling the binding strength of reactive intermediates via interface engineering.

electrochemical nitrogen reduction reaction in situ interface ruthenium SDG7: Affordable and clean energy titanium oxide

English

Corresponding

Guangdong Provincial Key Laboratory Of Catalysis[2020B121201002];National Natural Science Foundation of China[22033005];National Natural Science Foundation of China[22038002];

2-s2.0-85134769267

Scopus

1.School of Chemical and Biomedical Engineering,Nanyang Technological University,Singapore,637459,Singapore
2.Division of Chemistry and Biological Chemistry,School of Physical and Mathematical Sciences,Nanyang Technological University,Singapore,21 Nanyang Link,637371,Singapore
3.Department of Chemistry,Southern University of Science and Technology,Shenzhen,518055,China
4.Department of Chemistry,Key Laboratory of Organic Optoelectronics and Molecular Engineering of Ministry of Education,Tsinghua University,Beijing,100084,China
5.State Key Laboratory of Catalysis,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Beijing,116023,China

Cai，Weizheng,Jiang，Ya Fei,Zhang，Jincheng,et al. Ruthenium/titanium oxide interface promoted electrochemical nitrogen reduction reaction[J]. Chem Catalysis,2022,2(7):1764-1774.

Cai，Weizheng.,Jiang，Ya Fei.,Zhang，Jincheng.,Yang，Hongbin.,Zhang，Junming.,...&Liu，Bin.(2022).Ruthenium/titanium oxide interface promoted electrochemical nitrogen reduction reaction.Chem Catalysis,2(7),1764-1774.

Cai，Weizheng,et al."Ruthenium/titanium oxide interface promoted electrochemical nitrogen reduction reaction".Chem Catalysis 2.7(2022):1764-1774.