| Autor: |
Qiong-Lan Wang, Wei-Shang Jia, Yao-Yue Yang, Zhao-Xia Ma, Bing Lan, Ya-Juan Wu, Cai-Xia Zhou, Xiao-Le Jiang |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Applied Catalysis B: Environmental. 300:120728 |
| ISSN: |
0926-3373 |
| DOI: |
10.1016/j.apcatb.2021.120728 |
| Popis: |
Improving the CO2 selectivity of ethanol oxidation reaction (EOR) is a crucial research topic right now. Rh could effectively break the C C bond of ethanol, nevertheless, pristine Rh still exhibit negligible EOR activity due to the poisoning effect of C1 intermediates. To solve it, here we fabricate modified Rh interfaces with highly-dispersive Bi(OH)3 species as directed by the Langmuir-Hinshelwood Mechanism, the strong interaction between Rh and Bi(OH)3 could provide the so-called electronic effect and bifunctional effect. Thus it facilitates the C C bond cleavage at Rh sites and the electrooxidation of as-generated C1 intermediates even at low overpotentials. Eventually, the optimal Rh-Bi(OH)3 catalysts show an apparent C1 pathway faraday efficiency of 26.2% at 0.67 V vs. RHE, the EOR mass activity of ca. 3500 mA mg−1 Rhand 10-hour-long durability. This work could provide an insightful and promising route in promoting the CO2 selectivity of EOR with high activity and long stability. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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