Towards the design of efficient metal free ORR catalysts based on Zeolite Templated Carbons

被引：9

作者：

Aumond, Thibaud ^{[1
]}

Fogiel, Valentin ^{[1
]}

dos Santos, Leonardo Leandro ^{[1
,2
]}

Batonneau-Gener, Isabelle ^{[1
]}

Pouilloux, Yannick ^{[1
]}

Comminges, Clement ^{[1
]}

Canaff, Christine ^{[1
]}

Pergher, Sibele B. C. ^{[2
]}

Habrioux, Aurelien ^{[1
]}

Sachse, Alexander ^{[1
]}

机构：

[1] Univ Poitiers, Inst Chim Milieux & Mateiaux Poitiers IC2MP, CNRS, UMR 7285,UFR SFA,TSA 51106, Bat B27,4 Rue Michel Brunet, F-86073 Poitiers 9, France

[2] Univ Rio Grande Norte, Chem Inst, Mol Sieves Lab LABPEMOL, Av Senador Salgado Filho 3000, BR-59078970 Natal, RN, Brazil

来源：

MOLECULAR CATALYSIS | 2022年 / 531卷

关键词：

Zeolite Templated Carbons; Nitrogen functionalization; Oxygen reduction reaction; Graphene; OXYGEN REDUCTION; RAMAN-SPECTROSCOPY; CARBONIZATION; PERFORMANCE;

D O I：

10.1016/j.mcat.2022.112669

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Carbon and carbon/nitrogen Zeolite Templated Carbons (C-ZTC and CN-ZTC) were synthesized from pure ethylene and acetonitrile precursors and thoroughly characterized by nitrogen physisorption at 77 K, SEM, XRD, TGA, Raman spectroscopy and XPS. The CN-ZTC presented high nitrogen content (C/N = 12.5) and a less condensed skeleton compared to C-ZTC. Reduced micropore volume of CN-ZTC was observed due to the for-mation of extra-ZTC graphene-like species on the external surface, leading to high electron conductivity. The preparation of CN-ZTC based catalysts allowed for achieving conspicuously high ORR activity, featuring a half -wave potential of 0.81 V vs. RHE and high hydroxyl selectivity.

引用

页数：8

共 33 条

[1] Synthesis of hierarchical zeolite templated carbons [J].