Universal electrochemical quantification of active site density in transition metal nitrogen carbon electrocatalysts
Guang Li, Shu-Hu Yin, Li-Fei Ji, Xu-Yuan Nie, Ting Zhu, Xiao-Yang Cheng, Jun Xu, Rui Huang, Yan-Xia Jiang, Bin-Wei Zhang, Shi-Gang Sun · 2025
Read Universal electrochemical quantification of active site density in transition metal nitrogen carbon electrocatalysts by Guang Li, Shu-Hu Yin, Li-Fei Ji, Xu-Yuan Nie, Ting Zhu, Xiao-Yang Cheng, Jun Xu, Rui Huang, Yan-Xia Jiang, Bin-Wei Zhang, Shi-Gang Sun (2025) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-12660800.txt.
Description
Guang Li and ten co-authors present a lab method from 2025 for counting active sites on a class of fuel cell catalysts. These catalysts use single metal atoms held in nitrogen and carbon, in place of costly platinum. Knowing how many sites truly work is key to judging a catalyst, but the standard poison test can undercount them.
The team found that single metal centers can hold two poison molecules at once, which skews the count. Their new acid-assisted test, paired with an infrared method, corrects for that fact. Checks on well-defined test catalysts and on baked iron and cobalt versions showed the method works across the class.
Catalog record
| CREATOR | Guang Li, Shu-Hu Yin, Li-Fei Ji, Xu-Yuan Nie, Ting Zhu, Xiao-Yang Cheng, Jun Xu, Rui Huang, Yan-Xia Jiang, Bin-Wei Zhang, Shi-Gang Sun |
|---|---|
| YEAR | 2025 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 47 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |