Nitrogen, sulfur co-doped carbon coated zinc sulfide for efficient hydrogen peroxide electrosynthesis
- Resource Type
- Authors
- Tiju Thomas; Chengxiang Dai; Haichuan Guo; Shuqin Liang; Rongrong Li; Hangjia Shen; Minghui Yang
- Source
- Dalton Transactions. 50:5416-5419
- Subject
- Inorganic Chemistry
chemistry.chemical_compound
chemistry
Inorganic chemistry
chemistry.chemical_element
Electrolyte
Electrosynthesis
Hydrogen peroxide
Selectivity
Sulfur
Zinc sulfide
Oxygen
Faraday efficiency
- Language
- ISSN
- 1477-9234
1477-9226
Oxygen electroreduction (ORR) via a two-electron pathway is a promising alternative for hydrogen peroxide (H2O2) synthesis in small-scale applications. In this work, nitrogen and sulfur co-doped carbon coated zinc sulfide nanoparticles (ZnS@C) are synthesized using facile high-temperature annealing. In an alkaline electrolyte, the presence of ZnS suppresses the reduction of H2O2 during the ORR and contributes to high H2O2 selectivity (∼90%) over a wide potential range (0.40-0.80 V). Continuous generation of H2O2 is in turn achieved at an outstanding rate of 1.485 mol gcat.-1 h-1 with a faradaic efficiency of 93.7%.