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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Uniformly self-decorated Co3O4 nanoparticles on N, S co-doped carbon layers derived from a camphor sulfonic acid and metal-organic framework hybrid as an oxygen evolution electrocatalyst

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Author(s):
Khalid, Mohd [1] ; Honorato, Ana M. B. [2] ; Ticianelli, Edson A. [1] ; Varela, Hamilton [1]
Total Authors: 4
Affiliation:
[1] Univ Sao Paulo, Inst Chem Sao Carlos, POB 780, BR-13560970 Sao Carlos, SP - Brazil
[2] Case Western Reserve Univ, Dept Macromol Sci & Engn, Ctr Adv Sci & Engn Carbon Case4carbon, 10900 Euclid Ave, Cleveland, OH 44106 - USA
Total Affiliations: 2
Document type: Journal article
Source: JOURNAL OF MATERIALS CHEMISTRY A; v. 6, n. 25, p. 12106-12114, JUL 7 2018.
Web of Science Citations: 9
Abstract

The development of clean hydrogen-based energy technologies depends upon the rational design and synthesis of efficient and earth-abundant electrocatalysts. Despite great efforts, exploring cheap and unique design nanostructured materials for efficient electrocatalysis remains a big challenge. Here, we synthesize a porous co-doped carbon decorated with Co3O4 nanoparticles from pyrolysis of a camphor sulfonic acid and metal-organic framework hybrid. The uniformly self-decorated Co3O4 nanoparticles on N, S co-doped carbon layers (denoted as Co3O4/NSC) offer fast ion/electron transport and thus make the material an excellent oxygen evolution electrocatalyst. The resulting Co3O4/NSC shows an onset potential of 1.41 V versus the reversible hydrogen electrode (vs. RHE) and delivers an anodic current density of 10 mA cm(-2) at 1.49 V vs. RHE, demonstrating fast kinetics for the oxygen evolution reaction (OER) with a small Tafel slope of 70 mV dec(-1), making it superior to many state-of-the-art cobalt oxide-based catalysts recently reported in the literature. (AU)

FAPESP's process: 13/16930-7 - Electrocatalysis V: electrocatalytic processes of chemical and electrical energy interconversion
Grantee:Edson Antonio Ticianelli
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 17/00433-5 - Design and synthesis of multifunctional metal-free electrocatalyst onto carbon fiber yarns for oxygen reduction, and oxygen and hydrogen evolution reactions
Grantee:Mohmmad Khalid
Support Opportunities: Scholarships in Brazil - Post-Doctoral