Maximizing Performance of a Hybrid MnO2/Ni Electrochemical Actuator through Tailoring Lattice Tunnels and Cation Vacancies

doi:10.1021/acsami.1c22242

IMR OpenIR

	Maximizing Performance of a Hybrid MnO2/Ni Electrochemical Actuator through Tailoring Lattice Tunnels and Cation Vacancies
	Wang, Si-Qi 1; Zhang, Bin 1; Luo, Yan-Wen 1; Meng, Xiangying 2; Wang, Zhe-Xuan 1; Luo, Xue-Mei 3; Zhang, Guang-Ping 3
通讯作者	Zhang, Bin(zhangb@atm.neu.edu.cn) ; Zhang, Guang-Ping(gpzhang@imr.ac.cn)
	2022-02-11
发表期刊	ACS APPLIED MATERIALS & INTERFACES
ISSN	1944-8244
页码	11
摘要	Electrochemical actuators play a key role in converting electrical energy to mechanical energy. However, a low actuation stress and an unsatisfied strain response rate strongly limit the extensive applications of the actuators. Here, we report hybrid manganese dioxide (MnO2) fabricated by introducing ramsdellite (R-MnO2) and Mn vacancies into birnessite (delta-MnO2) nanosheets, which in situ grew on the surface of a nickel (Ni) film, forming a hybrid MnO2/Ni actuator. The actuator demonstrated a rapid strain response of 0.88% s(-1) (5.3% intrinsic strain in 6 s) and a large actuation stress of 244 MPa owing to the special R-MnO2 with a high density of sodium ion (Na+)-accessible lattice tunnels, Mn vacancies, and also a high Young's modulus of the hybrid MnO2/Ni composite. Besides, the cyclic stability of the actuator was realized after 1.2 x 10(4) cycles of electric stimulation under a frequency of 0.05 Hz. The finding of the novel hybrid MnO2/Ni actuator may provide a new strategy to maximize the actuating performance evidently through tailoring the lattice tunnel structure and introducing cation vacancies into electrochemical electrode materials.
关键词	manganese dioxide ramsdellite cation vacancies electrochemical actuators high actuation stress fast response
资助者	National Natural Science Foundation of China
DOI	10.1021/acsami.1c22242
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51971060] ; National Natural Science Foundation of China[51671050]
WOS研究方向	Science & Technology - Other Topics ; Materials Science
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000757906600001
出版者	AMER CHEMICAL SOC
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/173364
专题	中国科学院金属研究所
通讯作者	Zhang, Bin; Zhang, Guang-Ping
作者单位	1.Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Peoples R China 2.Northeastern Univ, Coll Sci, Shenyang 110819, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wang, Si-Qi,Zhang, Bin,Luo, Yan-Wen,et al. Maximizing Performance of a Hybrid MnO2/Ni Electrochemical Actuator through Tailoring Lattice Tunnels and Cation Vacancies[J]. ACS APPLIED MATERIALS & INTERFACES,2022:11.
APA	Wang, Si-Qi.,Zhang, Bin.,Luo, Yan-Wen.,Meng, Xiangying.,Wang, Zhe-Xuan.,...&Zhang, Guang-Ping.(2022).Maximizing Performance of a Hybrid MnO2/Ni Electrochemical Actuator through Tailoring Lattice Tunnels and Cation Vacancies.ACS APPLIED MATERIALS & INTERFACES,11.
MLA	Wang, Si-Qi,et al."Maximizing Performance of a Hybrid MnO2/Ni Electrochemical Actuator through Tailoring Lattice Tunnels and Cation Vacancies".ACS APPLIED MATERIALS & INTERFACES (2022):11.