Intercalation of Glucose in NiMn-Layered Double Hydroxide Nanosheets: an Effective Path Way towards Battery-type Electrodes with Enhanced Performance
Intercalation of Glucose in NiMn-Layered Double Hydroxide Nanosheets: an Effective Path Way towards Battery-type Electrodes with Enhanced Performance
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NiMn层状双氢氧化物纳米片中葡萄糖的插层：增强性能电池型电极的有效途径
DOI：
10.1016/j.electacta.2016.08.149
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发表时间：
2016-10
影响因子：
6.6
通讯作者：
Jiang Jianjun
中科院分区：
文献类型：
--
作者：
Lv Lin;Xu Kui;Wang Chundong;Wan Houzhao;Ruan Yunjun;Liu Jia;Zou Rujia;Miao Ling;Ostrikov Kostya;Lan Yucheng;Jiang Jianjun
采用一锅水热法成功制备了葡萄糖插层的NiMn层状双氢氧化物（LDH），扩大了LDH的层间距，提高了循环稳定性，突破了Ni基氢氧化物的应用瓶颈。电化学测量表明，退火处理的葡萄糖插层NiMn LDH（LDH-GA）在0.5 A g−1的电流密度下具有1464 F g− 1的高比容量（原始NiMn LDH为852 F g− 1）。增强的性能是由于小尺寸的结构，较低的电荷转移电阻和更快的可逆氧化还原反应。通过增大层间距和稳定LDH，使其循环稳定性从45%提高到90%，循环次数超过1000次。为了进一步揭示NiMn LDH电化学性能增强的原因，采用分子动力学（MD）模拟计算了不同层间距下电解质离子在NiMn LDH纳米孔内的扩散、离子扩散系数和离子电导率。实验和理论研究结果表明，葡萄糖插层是提高NiMn LDH电化学性能的有效途径，该方法也可推广到其他分子的插层以稳定LDH的α相。
Glucose intercalated NiMn layered double hydroxide (LDH) is successfully fabricated with a facile one-pot hydrothermal method, which expands interlayer distances to enhance cycling stability and break the bottleneck of Ni-based hydroxide in applications. Electrochemical measurements show that the annealing-treated glucose intercalated NiMn LDH (LDH-GA) delivers a high specific capacity of 1464 F g−1at a current density of 0.5 A g−1(852 F g−1for pristine NiMn LDH). The enhanced performance is contributed to the small sized architectures, lower charge transfer resistance and faster reversible redox reactions. Through enlarging interlayer distance and robustly stabilizing LDH, the cycling stability is dramatically enhanced from 45% to 90% for over 1000 cycles. To further disclose the reason of the enhanced electrochemical performance of NiMn LDH, a molecular dynamics (MD) simulation is implemented to calculate the diffusion of the electrolyte ions, the ionic diffusion coefficient and the ionic conductivity inside the NiMn LDH nanopores for different interlayer distances. Based on the experimental and theoretical results, it suggests that the intercalation of glucose in NiMn LDH could be an effective approach to enhance electrochemical performance, of which it also could be generalized to intercalation of other molecules to stabilize the α-phase of LDH.
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影响因子：
5.4
作者：
Godwin, I. J.;Lyons, M. E. G.
通讯作者：
Lyons, M. E. G.
影响因子：
9.2
作者：
A. Martínez-Arias;A. Hungría;M. Fernández-García;A. Iglesias-Juez;J. Conesa;G. C. Mather;G. Munuera
通讯作者：
A. Martínez-Arias;A. Hungría;M. Fernández-García;A. Iglesias-Juez;J. Conesa;G. C. Mather;G. Munuera
影响因子：
19
作者：
Jingwen Zhao;Si-Min Xu;K. Tschulik;R. Compton;Min Wei;D. O′Hare;D. Evans;X. Duan
通讯作者：
Jingwen Zhao;Si-Min Xu;K. Tschulik;R. Compton;Min Wei;D. O′Hare;D. Evans;X. Duan
DOI：
10.1039/b907366c
发表时间：
2009-10
期刊：
Physical chemistry chemical physics : PCCP
影响因子：
--
作者：
Dongpeng Yan;Jun Lu;Min Wei;Jing Ma;D. Evans;X. Duan
通讯作者：
Dongpeng Yan;Jun Lu;Min Wei;Jing Ma;D. Evans;X. Duan
影响因子：
9.5
作者：
Bo Wang;Gareth R. Williams;Z. Chang;Meihong Jiang;Junfeng Liu;Xiaodong Lei;Xiaoming Sun
通讯作者：
Bo Wang;Gareth R. Williams;Z. Chang;Meihong Jiang;Junfeng Liu;Xiaodong Lei;Xiaoming Sun