Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 55, Issue 23, Pages 6762-6766Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201602631
Keywords
energy conversion; energy storage; fuel cells; molybdenum; supercapacitors
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Funding
- Natural Science Foundation of China [21403306, 2141101037, 21273290]
- NSFC/RGC Joint Research Scheme [N HKUST610/14]
- Guangdong Natural Science Funds for Distinguished Young Scholar [2014A030306048]
- Technology Planning Project of Guangdong Province [2015B090927007]
- Fundamental Research Foundations for the Central Universities [15lgpy24]
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A novel in situ N and low-valence-state Mo dual doping strategy was employed to significantly improve the conductivity, active-site accessibility, and electrochemical stability of MoO3, drastically boosting its electrochemical properties. Consequently, our optimized N-MoO3-x nanowires exhibited exceptional performances as a bifunctional anode material for both fiber-shaped asymmetric supercapacitors (ASCs) and microbial fuel cells (MFCs). The flexible fiber-shaped ASC and MFC device based on the N-MoO3-x anode could deliver an unprecedentedly high energy density of 2.29 mWhcm(-3) and a remarkable power density of 0.76 mu Wcm(-1), respectively. Such a bifunctional fiber-shaped N-MoO3-x electrode opens the way to integrate the electricity generation and storage for self-powered sources.
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