KMS Chongqing Institute of Green and Intelligent Technology, CAS
| Acid-base transport model depicting the dynamic pH response of interfacial reactions | |
Yin, Fengjun1,2,3 ; Yang, Xiaohui1,2; Zheng, Lei1,2; Fang, Ling1,2; Wang, Sha1,2; Liu, Hong1,2
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| 2022-03-08 | |
| 摘要 | Acid-base transport is integral to many important interfacial reactions in various fields of chemistry, but its theoretical foundation is lacked. Herein, a common acid-base transport model is established owing to the success in deriving buffer transport equations. This model is applicable to most buffer systems by flexibly integrating the transport equations in terms of buffer components, and is verified through the model relationships of buffer transport limiting current by using hydrogen evolution reaction experiments. Based on model calculations, two diagram approaches are proposed to depict the dynamic pH response and aid buffer operation optimizations. The model and methods allow us to quantify the rate-limiting effect of acid-base transport on interfacial reactions and to precisely control the effect through medium regulations. Furthermore, the model has laid the foundation of dynamic pH effect on species transformation and process mechanism, which can be of wide interest in the chemistry encompassing interfacial reactions. |
| 关键词 | acid-base transport model buffer solutions dynamic pH response hydrogen evolution reaction interfacial reactions |
| DOI | 10.1002/aic.17669 |
| 发表期刊 | AICHE JOURNAL
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| ISSN | 0001-1541 |
| 页码 | 11 |
| 通讯作者 | Liu, Hong(liuhong@cigit.ac.cn) |
| 收录类别 | SCI |
| WOS记录号 | WOS:000765788300001 |
| 语种 | 英语 |
