Synergistic Pt-WO3 Dual Active Sites to Boost Hydrogen Production from Ammonia Borane
文献类型：期刊论文
| 作者 | Chen, Wenyao; Fu, Wenzhao; Qian, Gang; Zhang, Bingsen; Chen, De; Duan, Xuezhi; Zhou, Xinggui |
| 刊名 | ISCIENCE
 |
| 出版日期 | 2020-03-27 |
| 卷号 | 23期号:3 |
| DOI | 10.1016/j.isci.2020.100922 |
| 英文摘要 | Development of synergistic heterogeneous catalystswith active sites working cooperatively has been a pursuit of chemists. Herein, we report for the first time the fabrication and manipulation of Pt-WO3 dual-active-sites to boost hydrogen generation from ammonia borane. A combination of DFT calculations, structural characterization, and kinetic (isotopic) analysis reveals that Pt and WO3 act as the active sites for ammonia borane and H2O activation, respectively. A trade-off between the promoting effect of WO3 and the negative effect of decreased Pt binding energy contributes to a volcano-shaped activity, and Pt/CNT-5Wdelivers a 4-fold increased activity of 710.1 mol(H2).mol(Pt)(-1).min(-1). Moreover, WO3 is suggested to simultaneously act as the sacrificial site that can divert B-containing by-products away from Pt sites against deactivation, yielding an increase from 24% to 68% of the initial activity after five cycles. The strategy demonstrated here could shed a new light on the design and manipulation of dual-active-site catalysts. |
| WOS记录号 | WOS:000528358900044 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/83018]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Chen, Wenyao,Fu, Wenzhao,Qian, Gang,et al. Synergistic Pt-WO3 Dual Active Sites to Boost Hydrogen Production from Ammonia Borane[J]. ISCIENCE,2020,23(3). |
| APA | Chen, Wenyao.,Fu, Wenzhao.,Qian, Gang.,Zhang, Bingsen.,Chen, De.,...&Zhou, Xinggui.(2020).Synergistic Pt-WO3 Dual Active Sites to Boost Hydrogen Production from Ammonia Borane.ISCIENCE,23(3). |
| MLA | Chen, Wenyao,et al."Synergistic Pt-WO3 Dual Active Sites to Boost Hydrogen Production from Ammonia Borane".ISCIENCE 23.3(2020). |
入库方式： OAI收割
来源：金属研究所
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