2022年1月1日
Worrisome Exaggeration of Activity of Electrocatalysts Destined for Steady-State Water Electrolysis by Polarization Curves from Transient Techniques
Journal of The Electrochemical Society
- ,
- ,
- 巻
- 169
- 号
- 1
- 開始ページ
- 014508
- 終了ページ
- 014508
- 記述言語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1149/1945-7111/ac47ec
- 出版者・発行元
- The Electrochemical Society
Cyclic and linear sweep voltammetry techniques substantially misjudge the performance of water splitting electrocatalysts due to their transient nature that forbids the interface from reaching a steady-state. This misjudgment leads to the potentially detrimental yet unwittingly falsified data accumulation in the literature that requires immediate attention. Alternatively, sampled-current voltammetry (SCV) constructed from steady-state responses is advised to be widely adopted for screening electrocatalysts that are actually destined for steady-state operations. To show that this exaggeration is universal, a well-characterized activated SS, coprecipitated Co(OH)2, and Pt foil electrodes are studied for OER and HER in 1.0 M KOH. The results urge that it is time to adopt a relatively more precise alternative technique such as SCV.
- リンク情報
- ID情報
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- DOI : 10.1149/1945-7111/ac47ec
- ISSN : 0013-4651
- eISSN : 1945-7111