Self-Assembled Fe-N-Doped Carbon Nanotube Aerogels with Single-Atom Catalyst Feature as High-Efficiency Oxygen Reduction Electrocatalysts
- School of Mechanical and Materials Engineering, Washington State University, Pullman WA 99164 USA
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton NY 11973 USA
- Environmental Molecular Science Laboratory, Pacific Northwest National Laboratory, Richland WA 99354 USA
- Energy and Environmental Directory, Pacific Northwest National Laboratory, Richland WA 99354 USA
- School of Mechanical and Materials Engineering, Washington State University, Pullman WA 99164 USA; Environmental Molecular Science Laboratory, Pacific Northwest National Laboratory, Richland WA 99354 USA
Finely controlled synthesis of high active and robust non-precious metal catalysts with excellent electrocatalytic efficiency towards oxygen reduction reaction is extremely vital for successful implementation of fuel cells and metal batteries. Unprecedented oxygen reduction reaction electrocatalytic performances and the diversified synthetic procedure in term of favorable structure/morphology characteristics make transition metals-derived M–N–C (M=Fe, Co) structures the most promising nanocatalysts. Herein, using the nitrogen-containing small molecular and inorganic salt as precursors and ultrathin tellurium nanowires as templates, we successfully synthesized a series of well-defined M-N-doped hollow carbon nanowire aerogels through one step hydrothermal route and subsequent facile annealing treatment. Taking advantage of the porous nanostructures, one-dimensional building block as well as homogeneity of active sites, the resultant Fe-N-doped carbon hollow nanowire aerogels exhibited excellent ORR electrocatalytic performance even better than commercial Pt/C in alkaline solution, holding great potential in fuel cell applications.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1355090
- Report Number(s):
- PNNL-SA-119038; 48877; KC0203020
- Journal Information:
- Small, Journal Name: Small Journal Issue: 15 Vol. 13; ISSN 1613-6810
- Publisher:
- Wiley
- Country of Publication:
- United States
- Language:
- English
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