2018-Sustainable Industrial Processing Summit
SIPS2018
Volume 6. New and Advanced Materials and Technologies
| Editors: | F. Kongoli, F. Marquis, P. Chen, T. Prikhna, N. Chikhradze |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2018 |
| Pages: | 392 pages |
| ISBN: | 978-1-987820-92-8 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
CD shopping page
One-dimensional Nanomaterials for Emerging Energy Storage
Liqiang Mai1;1WUHAN UNIVERSITY OF TECHNOLOGY, Wuhan, China;
Type of Paper: Regular
Id Paper: 209
Topic: 43
Abstract:
One-dimensional nanomaterials can offer large surface area, facile strain relaxation upon cycling, and efficient electron transport pathway to achieve high electrochemical performance. Hence, nanowires have attracted increasing interest in energy related fields. The authors designed a single nanowire electrochemical device for in situ probing the direct relationship between electrical transport, structure, and electrochemical properties of the single nanowire electrode, in order to understand the intrinsic reason for capacity fading. The results show that during the electrochemical reaction, conductivity of the nanowire electrode decreased, which limits the cycle life of the devices. We have developed a facile and high-yield strategy for the oriented formation of CNTs from metal organic frameworks (MOFs).The appropriate graphitic N doping and the confined metal nanoparticles in CNTs both increase the densities of states near the Fermi level and reduce the work function, hence efficiently enhancing its oxygen reduction activity. Then, we fabricated a field-tuned hydrogen evolution reaction (HER) device with an individual MoS<sub>2</sub> nanosheet to explore the impact of field effect on catalysis. In addition, we demonstrated the critical role of structural H<sub>2</sub>O on Zn<sup>2+</sup> intercalation into bilayer V<sub>2</sub>O<sub>5</sub>·<i>n</i>H<sub>2</sub>O. The results suggest that the H<sub>2</sub>O-solvated Zn<sup>2+</sup> possesses largely reduced effective charge and thus reduced electrostatic interactions with the V<sub>2</sub>O<sub>5</sub> framework, effectively promoting its diffusion. Through preparing CaV<sub>4</sub>O<sub>9</sub> nanowires, we also identified exciting electrochemical properties (including high electric conductivity, small volume change, and self-preserving effect) and superior sodium storage performance of alkaline earth metal vanadates. The work presented here can inspire new ideas in constructing novel one-dimensional structures and accelerate the development of energy storage applications.
Keywords:
Energy; Nanomaterials;References:
[1] L. Q. Mai, Y. J. Dong, L. Xu and C. H. Han, Nano Lett.,10 (2010) 4273.[2] L. Q. Mai, M. Y. Yan and Y. L. Zhao, Nature,546 ( 2017) 469.
[3] J. S. Meng, C. J. Niu, L. H. Xu, J. T. Li, X. Liu, X. P. Wang, Y. Z. Wu, X. M. Xu, W. Y. Chen,Q. Li, Z. Z. Zhu, D. Y. Zhao and L.Q. Mai. J. Am. Chem. Soc., 139 (2017)8212.
[4] J. H. Wang, M. Y. Yan, K. N. Zhao, X. B. Liao, P. Y. Wang, X. L. Pan, W. Yang, L. Q. Mai, Adv. Mater., 29 (2016).
[5] M.Y. Yan, P. He, Y. Chen, S. Y. Wang, Q. L. Wei, K. N. Zhao, X. Xu, Q. Y. An, Y. Shuang, Y. Y. Shao, K. T. Mueller, L. Q. Mai, J. Liu, and J. H. Yang, Adv. Mater., 1703725(2017).
[6]. X. M. Xu, C. J. Niu, M. Y. Duan, X. P. Wang, L. Huang, J. H. Wang, L. T. Pu, W. H. Ren, C. W. Shi, J. S. Meng, B. Song and L. Q. Mai, Nature Commun., 2017, 8, 460.