Alloying of Cu with Ru Enabling the Relay Catalysis for Reduction of Nitrate to Ammonia
Lanzhou University · Lanzhou Jiaotong University · +4 more institutions
Abstract
Abstract Involving eight electron transfer process and multiple intermediates of nitrate (NO 3 − ) reduction reaction leads to a sluggish kinetic and low Faradaic efficiency, therefore, it is essential to get an insight into the reaction mechanism to develop highly efficient electrocatalyst. Herein, a series of reduced‐graphene‐oxide‐supported RuCu alloy catalysts (Ru x Cu x /rGO) are fabricated and used for the direct reduction of NO 3 − to NH 3 . It is found that the Ru 1 Cu 10 /rGO shows the ammonia formation rate of 0.38 mmol cm −2 h −1 (loading 1 mg cm −2 ) and the ammonia Faradaic efficiency of 98% under an ultralow potential of −0.05 V versus Reversible Hydrogen Electode (RHE), which is comparable to Ru…
Citation impact
- FWCI
- 27.76
- Percentile
- 100%
- References
- 59
Authors
9Topics & keywords
- Materials science
- Ammonia
- Nitrate
- Ammonia production
- Catalysis
- Reduction (mathematics)
- Inorganic chemistry
- Relay