Interface-modulated nanojunction and microfluidic platform for photoelectrocatalytic chemicals upgrading
文献类型：期刊论文
| 作者 | Gu, Zhenao; An, Xiaoqiang; Liu, Ruiping; Xiong, Lunqiao; Tang, Junwang; Hu, Chengzhi; Liu, Huijuan; Qu, Jiuhui
|
| 刊名 | APPLIED CATALYSIS B-ENVIRONMENTAL
 |
| 出版日期 | 2021-01 |
| 卷号 | 282页码:- |
| 关键词 | Chemicals upgrading Photoelectrocatalysis Microflow channels Charge separation Photocatalytic fuel cells |
| ISSN号 | 0926-3373 |
| 英文摘要 | Photoelectrocatalytic oxidation provides a technically applicable way for solar-chemical synthesis, but its efficiency and selectivity are moderate. Herein, a microfluidic photoelectrochemical architecture with 3-D micro flow channels is constructed by interfacial engineering of defective WO3/TiO2 heterostructures on porous carbon fibers. Kelvin probe force microscopy and photoluminescence imaging visually evidence the charge accumulation sites on the nanojunction. This efficient charge separation contributes to a 3-fold enhancement in the yield of glyceraldehyde and 1,3-dihydroxyacetone during glycerol upgrading, together with nearly doubled production of high value-added KA oil and S2O82- oxidant through cyclohexane and HSO4- oxidization, respectively. More importantly, the microfluidic platform with enhanced mass transfer exhibits a typical reaction selectivity of 85 %, which is much higher than the conventional planar protocol. Integrating this microfluidic photoanode with an oxygen reduction cathode leads to a self-sustained photocatalytic fuel cell with remarkably high open circuit voltage (0.9 V) and short-circuit current (1.2 mA cm(-2)). |
| WOS研究方向 | Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/46229]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 作者单位 | 1.UCL, Dept Chem Engn, Torrington Pl, London WC1E 7JE, England 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China 4.Tsinghua Univ, Ctr Water & Ecol, State Key Joint Lab Environm Simulat & Pollut Con, Sch Environm, Beijing 100084, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gu, Zhenao,An, Xiaoqiang,Liu, Ruiping,et al. Interface-modulated nanojunction and microfluidic platform for photoelectrocatalytic chemicals upgrading[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2021,282:-. |
| APA | Gu, Zhenao.,An, Xiaoqiang.,Liu, Ruiping.,Xiong, Lunqiao.,Tang, Junwang.,...&Qu, Jiuhui.(2021).Interface-modulated nanojunction and microfluidic platform for photoelectrocatalytic chemicals upgrading.APPLIED CATALYSIS B-ENVIRONMENTAL,282,-. |
| MLA | Gu, Zhenao,et al."Interface-modulated nanojunction and microfluidic platform for photoelectrocatalytic chemicals upgrading".APPLIED CATALYSIS B-ENVIRONMENTAL 282(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。