Enhanced lithium ion storage in dual carbon decorated β-Ga2O3 rendered by improved reaction kinetics
Enhanced lithium ion storage in dual carbon decorated β-Ga2O3 rendered by improved reaction kinetics
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通过改进的反应动力学增强双碳修饰的 β-Ga2O3 中的锂离子存储
DOI：
10.1016/j.jallcom.2020.154484
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发表时间：
2020-07
影响因子：
6.2
通讯作者：
Xuelin Yang
中科院分区：
文献类型：
--
作者：
Shuyue Yang;Qichang Chen;Shibing Ni;Zhen Xu;Dongmei Zhang;Tao Li;Xuelin Yang
采用快速冷冻干燥法制备了石墨烯和无定形碳修饰的β-Ga2O3型纳米颗粒(β-Ga2O3G/C)。在β-Ga_2O_3@G/C中，β-Ga_2O_3纳米粒子促进了锂离子的扩散，双碳修饰促进了电子的转移，触发了高的储能贡献。新鲜电极的伪电容储电量为61.7%，50次循环后为62.5%，100次循环后为66.7%。稳定的伪电容电荷存储也改善了循环性能。β-Ga_2O_3@G/C电极在0.2A/−_1下循环100次后的充放电容量分别为517.9和521.8 mAhg/−_1，在0.5A/g−_1下循环150次后的充放电容量分别为376.7/379.9 mA/g−_1。
Graphene and amorphous carbon decorated β-Ga2O3nanoparticles (β-Ga2O3@G/C) were fabricated via facile freezing-dry approach and subsequent sintering treatment. In the β-Ga2O3@G/C, β-Ga2O3nanoparticles facilitate the lithium ion diffusion, and dual carbon decoration promotes the electron transfer, triggering high pseudocapacitive contribution for charge storage. The pseudocapacitive charge storage for the fresh electrode is 61.7%, reaching 62.5% after 50 cycles, and 66.7% after 100 cycles. Stable pseudocapacitive charge storage also leads to improved cyclability. The β-Ga2O3@G/C electrode exhibits high charge/discharge capacity of 517.9 and 521.8 mAh g−1after 100 cycles at 0.2 A g−1, and 376.7/379.9 mAh g−1after 150 cycles at 0.5 A g−1, respectively.
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影响因子：
6.4
作者：
Mingzhi Yang;Changlong Sun;Tailin Wang;Fuzhou Chen;Minglei Sun;Lei Zhang;Yongliang Shao;Yongzhong Wu;Xiaopeng Hao
通讯作者：
Mingzhi Yang;Changlong Sun;Tailin Wang;Fuzhou Chen;Minglei Sun;Lei Zhang;Yongliang Shao;Yongzhong Wu;Xiaopeng Hao
对α-Ga2O3负极储锂机制的新见解及优化的电极设计
影响因子：
9.2
作者：
Shibing Ni;Qichang Chen;Jilei Liu;Shuyue Yang;Tao Li;Xuelin Yang;Jinbao Zhao
通讯作者：
Jinbao Zhao
影响因子：
29.4
作者：
Xinzhi Yu;Bin Wang;Decai Gong;Zhi Xu;Bingan Lu
通讯作者：
Xinzhi Yu;Bin Wang;Decai Gong;Zhi Xu;Bingan Lu
影响因子：
15
作者：
HUMMERS, WS;OFFEMAN, RE
通讯作者：
OFFEMAN, RE
影响因子：
29.4
作者：
Younan Xia;B. Gates;Yadong Yin;Yu Lu
通讯作者：
Younan Xia;B. Gates;Yadong Yin;Yu Lu