التفاصيل البيبلوغرافية
| العنوان: |
Identifying the Role of the Cationic Geometric Configuration in Spinel Catalysts for Polysulfide Conversion in Sodium-Sulfur Batteries |
| المؤلفون: |
Zhang, Chao Yue, Lu, Xuan, Han, Xu, Yu, Jing, Zhang, Chaoqi, Huang, Chen, Balcells, LluÃs, Garzón Manjón, Alba, Jacas Biendicho, Jordi, Li, Junshan, Arbiol i Cobos, Jordi, Sun, Gengzhi, Zhou, Jin Yuan, Cabot, Andreu |
| سنة النشر: |
2023 |
| المجموعة: |
Universitat Autònoma de Barcelona: Dipòsit Digital de Documents de la UAB |
| مصطلحات موضوعية: |
Active site, Cationics, Electrochemical activation, Geometric configurations, Large parts, Polysulphides, Sodium-sulfur batteries, Spinel catalyst, Spinel structure, ]+ catalyst |
| الوصف: |
An AB2X4 spinel structure, with tetrahedral A and octahedral B sites, is a paradigmatic class of catalysts with several possible geometric configurations and numerous applications, including polysulfide conversion in metal-sulfur batteries. Nonetheless, the influence of the geometric configuration and composition on the mechanisms of catalysis and the precise manner in which spinel catalysts facilitate the conversion of polysulfides remain unknown. To enable controlled exposure of single active configurations, herein, Cotd2+ and Cooh3+ in Co3O4 catalysts for sodium polysulfide conversion are in large part replaced by Fetd2+ and Feoh3+, respectively, generating FeCo2O4 and CoFe2O4. Through an examination of electrochemical activation energies, the characterization of symmetric cells, and theoretical calculations, we determine that Cooh3+ serves as the active site for the breaking of S-S bonds, while Cotd2+ functions as the active site for the formation of S-Na bonds. The current study underlines the subtle relationship between activity and geometric configurations of spinel catalysts, providing unique insights for the rational development of improved catalysts by optimizing their atomic geometric configuration. |
| نوع الوثيقة: |
article in journal/newspaper |
| وصف الملف: |
application/pdf |
| اللغة: |
English |
| تدمد: |
15205126 |
| Relation: |
Agència de Gestió d'Ajuts Universitaris i de Recerca 2021/SGR-00457; Agencia Estatal de Investigación PID2020-116093RB-C43; Ministerio de Ciencia e Innovación CEX2021-001214-S; Agencia Estatal de Investigación RYC2021-033479-I; Agencia Estatal de Investigación PID2021-128410OB-I00; Journal of the American Chemical Society; Vol. 145, Issue 34 (August 2023), p. 18992-19004; https://ddd.uab.cat/record/302220; urn:10.1021/jacs.3c06288; urn:oai:ddd.uab.cat:302220; urn:icn2uab:6604239; urn:scopus_id:85169185496; urn:articleid:15205126v145n34p18992 |
| الاتاحة: |
https://ddd.uab.cat/record/302220 |
| Rights: |
open access ; Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permÃs del(s) titular(s) de drets. ; https://rightsstatements.org/vocab/InC/1.0/ |
| رقم الانضمام: |
edsbas.9053743B |
| قاعدة البيانات: |
BASE |