Adjusting Competitive Reaction to Control Nucleation and Growth of MnO2 for a High-Stress Output Electrochemical Actuator
文献类型：期刊论文
| 作者 | Wang, Si-Qi1,2; Zhang, Bin1; Qiao, Rong-Hao1; Luo, Yan-Wen1; Luo, Xue-Mei3; Zhang, Guang-Ping3 |
| 刊名 | ACS APPLIED ELECTRONIC MATERIALS
 |
| 出版日期 | 2023-08-24 |
| 卷号 | 5期号:9页码:4836-4845 |
| 关键词 | manganese dioxide competitive reaction electrochemicalactuator high output stress artificial muscle |
| DOI | 10.1021/acsaelm.3c00634 |
| 通讯作者 | Zhang, Bin(zhangb@atm.neu.edu.cn) ; Zhang, Guang-Ping(gpzhang@imr.ac.cn) |
| 英文摘要 | Manganese dioxide (MnO2) with biocompatibility has promising applications in low-voltage electrochemical actuators of implantable medical devices, which can convert electrical energy to mechanical motion. However, the unsatisfactory actuation strain restricts the generation of a larger output stress of MnO2 for practical application. Herein, a competitive reaction-driven-MnO2 (CRD-MnO2) nanorod network was fabricated on a nickel (Ni) thin-film substrate by adjusting the component molar ratios. We find that the competitive reaction between 3,4-ethylene-dioxythiophene (EDOT) polymerization and oxidation of Mn2+ controls the nucleation and growth behavior of MnO2. The variation in the electron environment, newly generated oxygen vacancies, and a higher content of structural water effectively improve the electroactivity of MnO2 and simultaneously cause more serious Jahn-Teller (JT) distortion of the crystal octahedrons. Thus, an excellent output performance simultaneously having a much higher actuating strain of 8.3% and an actuation stress of 390.1 MPa is generated during a redox reaction between Mn4+ and Mn3+ under 0-1 V. Moreover, the CRD-MnO2/Ni composite actuating films assembled on a 3D-printed resin model of a human hand with separated finger joints can perform smooth grasping and releasing actions, demonstrating a huge potential for in vitro rehabilitation exercises and implantability for people with finger dyskinesia. This work provides a strategy for actuator material fabrication by controlling a nucleation and growth process by adjusting a competitive reaction. |
| 资助项目 | National Natural Science Foundation of China[51971060] ; National Natural Science Foundation of China[51671050] ; China Scholarship Council[202106080077] |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001063591600001 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | National Natural Science Foundation of China ; China Scholarship Council |
| 源URL | [http://ir.imr.ac.cn/handle/321006/179161]  |
| 专题 | 金属研究所_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.Linkoping Univ, Dept Phys Chem & Biol IFM, Sensor & Actuator Syst, S-58183 Linkoping, Sweden 3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Si-Qi,Zhang, Bin,Qiao, Rong-Hao,et al. Adjusting Competitive Reaction to Control Nucleation and Growth of MnO2 for a High-Stress Output Electrochemical Actuator[J]. ACS APPLIED ELECTRONIC MATERIALS,2023,5(9):4836-4845. |
| APA | Wang, Si-Qi,Zhang, Bin,Qiao, Rong-Hao,Luo, Yan-Wen,Luo, Xue-Mei,&Zhang, Guang-Ping.(2023).Adjusting Competitive Reaction to Control Nucleation and Growth of MnO2 for a High-Stress Output Electrochemical Actuator.ACS APPLIED ELECTRONIC MATERIALS,5(9),4836-4845. |
| MLA | Wang, Si-Qi,et al."Adjusting Competitive Reaction to Control Nucleation and Growth of MnO2 for a High-Stress Output Electrochemical Actuator".ACS APPLIED ELECTRONIC MATERIALS 5.9(2023):4836-4845. |
入库方式： OAI收割
来源：金属研究所
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