Journal
CHEMICAL ENGINEERING JOURNAL
Volume 334, Issue -, Pages 2401-2407Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2017.12.016
Keywords
AgNPs/g-C3N4 aerogel; Photocatalysis; Methanol dehydrogenation; Hydrogen generation; In situ assembly
Categories
Funding
- Natural Science Foundation of China [21506095, 21703197]
- Natural Science Foundation of Jiangsu Province [BK20150940]
- Qing-Lan Project of Jiangsu Province
- Top-notch Academic Programs Project of Jiangsu Higher Education Institutions (TAPP)
- Yangzhou University
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Methanol has been deemed to be a favorable medium for the source of hydrogen because its liquid nature facilitates the storage, transportation, and utilization of hydrogen. Currently, steam reforming is the most common method to generate hydrogen from methanol in chemical industry and hydrogen fuel cell field. However, methanol reforming often involves high temperature and pressure, massive capital investment, as well as undesirable byproducts (CO, CO2, etc.) formation. To overcome these disadvantages, in this work, we describe an in situ assembly and stepwise thermal treatment method to synthesize fibrous AgNPs/g-C3N4 aerogel, which exhibits efficient photocatalysis activity for the splitting of pure methanol at room temperature. Encouragingly, hydrogen is continuously produced while neither CO nor CO2 is found in the products, which could be attributed to the moderate redox feature of silver in the AgNPs/g-C3N4 aerogel. More importantly, this COx-free hydrogen evolution process can prevent the poisoning of catalysts, opening a new opportunity for developing low-carbon chemistry.
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