Niobium and Titanium Carbides (MXenes) as Superior Photothermal Supports for CO2 Photocatalysis
| Autor: | Kai Feng, Shenghua Wang, Xiaohong Zhang, Dake Zhang, Mingyu Chu, Zhao Li, Jiahui Shen, Mujin Cai, Le He, Zheng Huang, Chengcheng Zhang, Yanling Xiao, Zhiyi Wu, Geoffrey A. Ozin, Chaoran Li |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Catalyst support Photothermal effect General Engineering General Physics and Astronomy Nanoparticle Nanotechnology 02 engineering and technology Photothermal therapy 010402 general chemistry 021001 nanoscience & nanotechnology 7. Clean energy 01 natural sciences 0104 chemical sciences Catalysis 13. Climate action Photocatalysis Energy transformation General Materials Science 0210 nano-technology MXenes |
| Zdroj: | ACS Nano. 15:5696-5705 |
| ISSN: | 1936-086X 1936-0851 |
| DOI: | 10.1021/acsnano.1c00990 |
| Popis: | The conversion of CO2 into fuels and feedstock chemicals via photothermal catalysis holds promise for efficient solar energy utilization to tackle the global energy shortage and climate change. Despite recent advances, it is of emerging interest to explore promising materials with excellent photothermal properties to boost the performance of photothermal CO2 catalysis. Here, we report the discovery of MXene materials as superior photothermal supports for metal nanoparticles. As a proof-of-concept study, we demonstrate that Nb2C and Ti3C2, two typical MXene materials, can enhance the photothermal effect and thus boost the photothermal catalytic activity of Ni nanoparticles. A record CO2 conversion rate of 8.50 mol·gNi-1·h-1 is achieved for Nb2C-nanosheet-supported Ni nanoparticles under intense illumination. Our study bridges the gap between photothermal MXene materials and photothermal CO2 catalysis toward more efficient solar-to-chemical energy conversions and stimulates the interest in MXene-supported metal nanoparticles for other heterogeneous catalytic reactions, particularly driven by sunlight. |
| Databáze: | OpenAIRE |
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