期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 558, 期 -, 页码 155-162出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2019.09.121
关键词
Solvent-free strategy; Co9S8 nanoparticle; N, S-codoping; Mesoporous carbon; Hydrogen evolution reaction
资金
- National Nature Science Foundation of China [91845201, 21601128]
- Natural Science Foundation of Liaoning Province of China (Materials Joint Foundation) [20180510031]
- Liaoning Provincial Instrument and Equipment Sharing Service Platform Building Project(China)
- Support Plan for Innovative Talents in Colleges and Universities of Liaoning Province [22]
- Open Project of State Key Laboratory of Supramolecular Structure and Materials (China) [skIssm2019024]
- High-level Innovative Talents Project of Shenyang City of china [RC180171]
- Program for Excellent Talents in Shenyang Normal University (China) [054-51600210, BS201621]
- Major Platform for Science and Technology of the Universities in Liaoning Province
- Liaoning Province Key Laboratory for Highly Efficient Conversion and Clean Utilization of Oil and Gas Resources of Liaoning Province
- Engineering Research Center for Highly Efficient Conversion and Clean Use of Oil and Gas Resources of Liaoning Province
- Engineering Technology Research Center of Catalysis for Energy and Environment
A facile solvent-free method was developed to synthesize Co9S8 nanoparticles entrapped, N, S-codoped mesoporous carbon, which involved two steps, including hand milling and carbonation. This synthetic route did not require any solvent during the entire process. Moreover, no water and/or acid solution were needed to remove the impurity from the calcined samples. The final products had mesoporous structures, as well as high Co, N, and S contents. In details, N and S atoms both doped into the carboneous matrix, and the Co9S8 nanoparticles also dispersed well in the composites. The characterization results revealed that the ratios of the precursors and the calcination temperatures both determined the porosities of the final products, which could further affect the electrocatalytic activities. The optional sample, G2.0T1.0Co0.3-900, revealed excellent electrocatalytic activities for hydrogen evolution reaction (HER) under acidic condition, requiring overpotential of 71 mV to afford a current density of 10 mA cm(-2). Additionally, G2.0T1.0Co0.3-900 also showed superior stability and duration. (C) 2019 Elsevier Inc. All rights reserved.
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