Zero-emission multivalorization of light alcohols with self-separable pure H2 fuel
| Autor: | Yunguo Li, Alfred K.K. Fung, Dmitri Golberg, Zongyou Yin, Haijao Lu, Zhichen Wan, Michelle L. Coote, Chao Zhang, Andrew T. S. Wee, Julien Langley, Nasir Uddin, Hieu T. Nguyen, Xinmao Yin, Jingying Liu, Nicholas Cox, Qiaoling Bao, Shibo Xi |
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| Rok vydání: | 2021 |
| Předmět: |
Hydrogen
Process Chemistry and Technology chemistry.chemical_element Alcohol Disproportionation 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 7. Clean energy 01 natural sciences Redox Catalysis 0104 chemical sciences chemistry.chemical_compound chemistry 13. Climate action Hydrogen fuel Methanol 0210 nano-technology General Environmental Science Hydrogen production |
| Zdroj: | Applied Catalysis B: Environmental. 292:120212 |
| ISSN: | 0926-3373 |
| DOI: | 10.1016/j.apcatb.2021.120212 |
| Popis: | To reach Paris Agreement's target of 1.5 degrees C global temperature increase by 2100, low emission strategies are crucial. In synthetic chemistry, the phototransformation of light alcohols (methanol, ethanol and iso-propanol) into hydrogen fuel and chemicals promises high potential utility value for industry. However, this process is often practiced using promoters (i.e. water, acid or base), with and several issues remained unsolved, e.g. water promoter induce CO2 emission; acid/base promoters restrict catalyst selection, and lead to complicated product purification and cost increase. In this work, we report solar-driven promoter-free multivalorization of light alcohols into self-separable hydrogen gas/fuel and liquid chemicals without COx emission based on the twodimensional (2D) SnS/g-C3N4 heterojunction. The hydrogen production efficiency reaches 1.27 mmol.g(-1). h(-1) with similar to 95 % recoverability. The process reduction occurs via a sequence of redox reactions, combination and disproportionation, as confirmed from experimental and product analysis. This work demonstrates the effectiveness of 2D heterojunctions for promoter-free, zero-emission alcohol phototransformations. |
| Databáze: | OpenAIRE |
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