MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, 510275, P.R. China.
Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
Angew Chem Int Ed Engl. 2016 Jun 1;55(23):6762-6. doi: 10.1002/anie.201602631. Epub 2016 Apr 21.
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 mWh cm(-3) and a remarkable power density of 0.76 μW cm(-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.
采用了一种新型的原位 N 和低价态 Mo 双重掺杂策略，显著提高了 MoO3 的电导率、活性位可及性和电化学稳定性，极大地提高了其电化学性能。因此，我们优化的 N-MoO3-x 纳米线作为一种用于纤维状不对称超级电容器 (ASC) 和微生物燃料电池 (MFC) 的双功能阳极材料，表现出了优异的性能。基于 N-MoO3-x 阳极的柔性纤维状 ASC 和 MFC 器件分别可提供前所未有的高能量密度 2.29 mWh·cm-3 和显著的功率密度 0.76 μW·cm-1。这种双功能纤维状 N-MoO3-x 电极为集成自供电源的发电和存储开辟了道路。
