Efficient piezo-catalytic hydrogen peroxide production from water and oxygen over graphitic carbon nitride
文献类型：期刊论文
| 作者 | Wang, Kefu; Shao, Dengkui; Zhang, Ling; Zhou, Yuanyi; Wang, Haipeng; Wang, Wenzhong |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 出版日期 | 2019-09-21 |
| 卷号 | 7期号:35页码:20383 |
| ISSN号 | 2050-7488 |
| DOI | 10.1039/c9ta06251c |
| 文献子类 | Article |
| 英文摘要 | Design of a green and sustainable approach for H2O2 synthesis is a meaningful subject. Herein, we propose a piezo-catalytic method for H2O2 production by utilizing a metal-free g-C3N4 catalyst, which has high activity for generating H2O2 only from H2O and O-2 under ultrasonic vibration by means of converting mechanical energy to chemical energy. Without any organics, the ultrasonic-driven generation rate of H2O2 reached 34 mu mol h(-1). KMnO4 reduction experiments confirmed the generation of polarized electrons for g-C3N4 under ultra-sonication, while Au deposition on the edge of g-C3N4 after piezo-catalytic reduction of HAuCl4 indicated that the ultrasonic-derived piezoelectric polarization over g-C3N4 was along the g-C3N4 plane. The construction of C or N vacancies could change the piezoelectric response of g-C3N4, which was confirmed by Piezoresponse Force Microscopy (PFM), and the result showed that the g-C3N4 containing C or N vacancies exhibited a weaker piezoelectric effect and poorer ultrasonic-assisted catalytic performance than pristine g-C3N4 due to the impairment of the crystal structure. Our work reports the piezo-catalytic effect of g-C3N4 and it may help provide a green and sustainable process of generating H2O2 directly from water and oxygen. |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Materials Science |
| 语种 | 英语 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.sic.ac.cn/handle/331005/26825]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Wang, Kefu,Shao, Dengkui,Zhang, Ling,et al. Efficient piezo-catalytic hydrogen peroxide production from water and oxygen over graphitic carbon nitride[J]. JOURNAL OF MATERIALS CHEMISTRY A,2019,7(35):20383. |
| APA | Wang, Kefu,Shao, Dengkui,Zhang, Ling,Zhou, Yuanyi,Wang, Haipeng,&Wang, Wenzhong.(2019).Efficient piezo-catalytic hydrogen peroxide production from water and oxygen over graphitic carbon nitride.JOURNAL OF MATERIALS CHEMISTRY A,7(35),20383. |
| MLA | Wang, Kefu,et al."Efficient piezo-catalytic hydrogen peroxide production from water and oxygen over graphitic carbon nitride".JOURNAL OF MATERIALS CHEMISTRY A 7.35(2019):20383. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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