Pressure intensified HO center dot evolution from OER and electrolysis desulfurization
文献类型：期刊论文
| 作者 | Zhang, Tong1,2; Zhou, Yujian1; Hu, Yingnan1,2; Wang, Zhi1; Liu, Junhao1; Qian, Guoyu1; Gong, Xuzhong1,2 |
| 刊名 | ELECTROCHIMICA ACTA
 |
| 出版日期 | 2019-09-20 |
| 卷号 | 318页码:202-210 |
| 关键词 | HO $OER Pressure Electrolysis Desulfurization |
| ISSN号 | 0013-4686 |
| DOI | 10.1016/j.electacta.2019.06.080 |
| 英文摘要 | To strengthen the formation of Hydroxyl radical (HO center dot) on anode, pressurized water electrolysis under constant temperature were carried out in this work. The HO center dot formation was verified by electrochemistry-electron spin resonance (ESR) and bauxite desulfurization in the same pressurized reactor with different cell designs. With increasing pressure, the current density was increased. However, the equilibrium potential of anode and the initial potential of oxygen evolution reaction (OER) were negative shifted with increasing pressure. Results revealed that pressure promoted the early steps of OER but inhibited subsequent transformation. The apparent transfer coefficient of the anode (b(a) and b(c)) further proved that the pressure play a positive role on the OER reserve reaction and promoted the formation of HO center dot. R-ct and R-s were all decreased with increasing pressure, demonstrating that pressure improved the mass transfer and reaction of the OER. The electrolysis desulfurization and ESR experiments have clearly supported the positive role of pressure on strengthening the HO center dot formation. From electrolysis with 0.1 MPa, HO center dot signal was detected by ESR when constant potential was 0.8 V on anode, while the signal arose at 0.7 V under 1.0MPa, indicating that HO center dot was formed in advance under pressure. (C) 2019 Elsevier Ltd. All rights reserved. |
| WOS关键词 | OXYGEN REDUCTION REACTION ; HIGH-TEMPERATURE ; WASTE-WATER ; FLUE-GAS ; ELECTROCHEMICAL OXIDATION ; HYDROXYL RADICALS ; PERFORMANCE ; GENERATION ; REACTIVITY ; HYDROGEN |
| 资助项目 | Natural Science Foundation of China[51474198] ; Natural Science Foundation of China[21878299] ; Natural Science Foundation of China[51422405] |
| WOS研究方向 | Electrochemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000478969600022 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | Natural Science Foundation of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/30523]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Wang, Zhi; Gong, Xuzhong |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Tong,Zhou, Yujian,Hu, Yingnan,et al. Pressure intensified HO center dot evolution from OER and electrolysis desulfurization[J]. ELECTROCHIMICA ACTA,2019,318:202-210. |
| APA | Zhang, Tong.,Zhou, Yujian.,Hu, Yingnan.,Wang, Zhi.,Liu, Junhao.,...&Gong, Xuzhong.(2019).Pressure intensified HO center dot evolution from OER and electrolysis desulfurization.ELECTROCHIMICA ACTA,318,202-210. |
| MLA | Zhang, Tong,et al."Pressure intensified HO center dot evolution from OER and electrolysis desulfurization".ELECTROCHIMICA ACTA 318(2019):202-210. |
入库方式： OAI收割
来源：过程工程研究所
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