title: Bundle-like α'-NaV2O5 mesocrystals: from synthesis, growth mechanism to analysis of Na-ion intercalation/deintercalation abilities.
abstract: Bundle-like α'-NaV2O5 mesocrystals were synthesized successfully by a two-step hydrothermal method. Observations using electron microscopy revealed that the obtained NaV2O5 mesocrystals were composed of nanobelts with the preferential growth direction of [010]. The precise crystal structure was further confirmed by Rietveld refinement and Raman spectroscopy. Based on analysis of crystal structure and microscopy, a reaction and growth mechanism, hydrolysis-condensation (oxolation and olation)-ion exchange-self-assembly, was proposed and described in detail. Furthermore, electrochemical measurements were used to analyze the Na-ions intercalation/deintercalation abilities in NaV2O5, and indicated that Na-ions were difficult to extract. Importantly, the DFT theoretical calculation results, which showed that the migration energy of Na-ions was so huge that migration of Na-ions was quite difficult, can explain and support well the results of the electrochemical measurements.
authors.affiliation: State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China. kjzhu@nuaa.edu.cn and College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, 210016, China.
authors.forename: Pengcheng
authors.initials: P
authors.lastname: Liu
authors.affiliation: Department of Chemical Engineering, University of Rochester, Rochester, New York 14627, USA.
authors.forename: Dehua
authors.initials: D
authors.lastname: Zhou
authors.affiliation: State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China. kjzhu@nuaa.edu.cn.
authors.forename: Kongjun
authors.initials: K
authors.lastname: Zhu
authors.affiliation: Chemical and Materials Engineering Department, University of Kentucky, 177 F. P. Anderson Tower, Lexington, KY 40506-0046, USA. qwu4@uky.edu.
authors.forename: Qingliu
authors.initials: Q
authors.lastname: Wu
authors.affiliation: College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 210009, China.
authors.forename: Yifeng
authors.initials: Y
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China. kjzhu@nuaa.edu.cn.
authors.forename: Guoan
authors.initials: G
authors.lastname: Tai
authors.affiliation: State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China. kjzhu@nuaa.edu.cn and College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, 210016, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China. kjzhu@nuaa.edu.cn and College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, 210016, China.
authors.forename: Qilin
authors.initials: Q
authors.lastname: Gu