Journal article
Template-directed synthesis of nitrogen-and sulfur-codoped carbon nanowire aerogels with enhanced electrocatalytic performance for oxygen reduction
Nano research, Vol.10(6), pp.1888-1895
06/01/2017
Abstract
Heteroatom doping, precise composition control, and rational morphology design are efficient strategies for producing novel nanocatalysts for the oxygen reduction reaction (ORR) in fuel cells. Herein, a cost-effective approach to synthesize nitrogen-and sulfur-codoped carbon nanowire aerogels using a hard templating method is proposed. The aerogels prepared using a combination of hydrothermal treatment and carbonization exhibit good catalytic activity for the ORR in alkaline solution. At the optimal annealing temperature and mass ratio between the nitrogen and sulfur precursors, the resultant aerogels show comparable electrocatalytic activity to that of a commercial Pt/C catalyst for the ORR. Importantly, the optimized catalyst shows much better long-term stability and satisfactory tolerance for the methanol crossover effect. These codoped aerogels are expected to have potential applications in fuel cells.
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Details
- Title
- Template-directed synthesis of nitrogen-and sulfur-codoped carbon nanowire aerogels with enhanced electrocatalytic performance for oxygen reduction
- Creators
- Shaofang Fu - Washington State UniversityChengzhou Zhu - Washington State UniversityJunhua Song - Washington State UniversityMark H. Engelhard - Pacific Northwest National LaboratoryXiaolin Li - Pacific Northwest National LaboratoryPeina Zhang - State Key Laboratory of Crystal MaterialsHaibing Xia - State Key Laboratory of Crystal MaterialsDan Du - Washington State UniversityYuehe Lin - Environmental Molecular Sciences Laboratory
- Publication Details
- Nano research, Vol.10(6), pp.1888-1895
- Academic Unit
- School of Mechanical and Materials Engineering
- Publisher
- Tsinghua Univ Press
- Number of pages
- 8
- Grant note
- Washington State University, USA Department of Energy's Office of Biological and Environmental Research; United States Department of Energy (DOE) DE-AC05-76RL01830 / DOE; United States Department of Energy (DOE)
- Identifiers
- 99901227848801842
- Language
- English
- Resource Type
- Journal article