Molecular-level understanding of the deactivation pathways during methanol photo-reforming on Pt-decorated TiO2
文献类型：期刊论文
| 作者 | Huang, HT; Feng, JY; Zhang, S; Zhang, HN; Wang, X; Yu, T; Chen, CC; Yi, ZG; Ye, JH; Li, ZS |
| 刊名 | APPLIED CATALYSIS B-ENVIRONMENTAL
 |
| 出版日期 | 2020-09-05 |
| ISSN号 | 0926-3373 |
| DOI | 10.1016/j.apcatb.2020.118980 |
| 文献子类 | Article |
| 英文摘要 | The methanol photo-reforming offers an environmentally friendly approach for hydrogen production. However, the widely studied catalyst for this reaction, Pt loaded titanium dioxide (Pt/P25), is found to suffer from the deactivation problem. Here, we employed various techniques including in situ spectroscopy characterization to probe the underlying mechanism. The formed intermediates formaldehyde and formic acid result in the decreased activity of hydrogen production over Pt/P25. Formic acid harms the Pt co-catalyst, whereas formaldehyde can inhibit both the Pt co-catalyst and P25 photocatalyst and plays a major role in the deteriorative effect on Pt/P25. In addition, rutile in P25 is identified to be the bottleneck against the poisoning of the reaction intermediate. A deactivation mechanism is developed, which helps to troubleshoot the deactivation problem; for example, a strategy based on the chemical potential difference applied to the deactivated photocatalyst enables it to recover similar to 80 % of its original hydrogen production activity. |
| WOS关键词 | PHOTOCATALYTIC HYDROGEN-PRODUCTION ; TITANIUM-DIOXIDE ; PLATINIZED TIO2 ; WATER ; METAL ; EFFICIENCY ; PT/TIO2 ; FORMALDEHYDE ; OXIDATION ; EVOLUTION |
| WOS研究方向 | Chemistry ; Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27770]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Huang, HT,Feng, JY,Zhang, S,et al. Molecular-level understanding of the deactivation pathways during methanol photo-reforming on Pt-decorated TiO2[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2020. |
| APA | Huang, HT.,Feng, JY.,Zhang, S.,Zhang, HN.,Wang, X.,...&Zou, ZG.(2020).Molecular-level understanding of the deactivation pathways during methanol photo-reforming on Pt-decorated TiO2.APPLIED CATALYSIS B-ENVIRONMENTAL. |
| MLA | Huang, HT,et al."Molecular-level understanding of the deactivation pathways during methanol photo-reforming on Pt-decorated TiO2".APPLIED CATALYSIS B-ENVIRONMENTAL (2020). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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