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Highly dispersed and ultrafine Co<sub>3</sub>O<sub>4</sub>@N-doped carbon catalyst derived from metal-organic framework for efficient oxygen reduction reaction

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Title Statement Highly dispersed and ultrafine Co<sub>3</sub>O<sub>4</sub>@N-doped carbon catalyst derived from metal-organic framework for efficient oxygen reduction reaction
 
Added Entry - Uncontrolled Name Chu, Yuanyuan ; Tiangong University
the National Natural Science Foundation of China(Grant No. 21206124 and 17JCQNJC06500)
 
Uncontrolled Index Term catalysis and analytical chemistry;Solid state chemistry
Co3O4/KB@MOF-derived; Durability; Methanol-tolerance; Oxygen reduction reaction; Direct methanol fuel cell
 
Summary, etc. Electrocatalysts are composed of transition metal/metal oxide and N-doped carbon can overcome the sluggish kinetics of oxygen reduction reaction (ORR). Herein, The Co3O4/ketjen black (KB) @MOF-derived with uniformly dispersed and ultrafine Co3O4 nanoparticles (1-5 nm) is synthesized by a facile in-suit method and subsequent mild pyrolysis process. It exhibits enhanced activity with onset potential (Eonset) of 0.96 V (vs. RHE) and a half-wave potential (E1/2) of 0.86 V (vs. RHE) in 0.1 M KOH solution, the excellent durability with E1/2 a small negative shift of 10 mV after 5000 continuous cycles and good methanol-tolerance property. The ultrahigh catalytic performance of <a href="mailto:Co3O4/KB@MOF-derived">Co3O4/KB@MOF-derived</a> can be ascribed to the small particle size range of 1-5 nm of Co3O4, as well as the strong interaction between the in-situ formed N-Co3O4 active sites and substrate under the mild calcination temperature. Above all, these indicate that the as-prepared Co3O4/KB @MOF-derived may be a good alternative to commercial Pt-based catalysts.
 
Publication, Distribution, Etc. Indian Journal of Chemistry -Section A (IJCA)
2021-09-22 10:50:13
 
Electronic Location and Access application/pdf
http://op.niscair.res.in/index.php/IJCA/article/view/46068
 
Data Source Entry Indian Journal of Chemistry -Section A (IJCA); ##issue.vol## 60, ##issue.no## 7 (2021): INDIAN JOURNAL OF CHEMISTRY- SECTION A
 
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Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJCA/article/download/46068/465547951
http://op.niscair.res.in/index.php/IJCA/article/download/46068/465547963
http://op.niscair.res.in/index.php/IJCA/article/download/46068/465547964
http://op.niscair.res.in/index.php/IJCA/article/download/46068/465547965
http://op.niscair.res.in/index.php/IJCA/article/download/46068/465547967
http://op.niscair.res.in/index.php/IJCA/article/download/46068/465547968
http://op.niscair.res.in/index.php/IJCA/article/download/46068/465547970
 
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