High-performance graphdiyne-based electrochemical actuators

Nature Communications
Chao LuWei Chen

Abstract

Electrochemical actuators directly converting electrical energy to mechanical energy are critically important for artificial intelligence. However, their energy transduction efficiency is always lower than 1.0% because electrode materials lack active units in microstructure, and their assembly systems can hardly express the intrinsic properties. Here, we report a molecular-scale active graphdiyne-based electrochemical actuator with a high electro-mechanical transduction efficiency of up to 6.03%, exceeding that of the best-known piezoelectric ceramic, shape memory alloy and electroactive polymer reported before, and its energy density (11.5 kJ m-3) is comparable to that of mammalian skeletal muscle (~8 kJ m-3). Meanwhile, the actuator remains responsive at frequencies from 0.1 to 30 Hz with excellent cycling stability over 100,000 cycles. Furthermore, we verify the alkene-alkyne complex transition effect responsible for the high performance through in situ sum frequency generation spectroscopy. This discovery sheds light on our understanding of actuation mechanisms and will accelerate development of smart actuators.

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Citations

Sep 28, 2018·Advanced Materials·Zicheng ZuoYuliang Li
Jan 5, 2019·Chemical Society Reviews·Xin GaoJin Zhang
Jun 22, 2019·Advanced Materials·Ryota SakamotoHiroshi Nishihara
Jul 3, 2019·Chemical Communications : Chem Comm·Chao Lu, Xi Chen
Oct 3, 2019·Physical Chemistry Chemical Physics : PCCP·Vuong Van ThanhNguyen Tuan Hung
Dec 6, 2019·Advanced Materials·Ke HeXiaodong Chen
Jan 22, 2020·Angewandte Chemie·Weixiang ZhouYuliang Li
Jul 6, 2019·Advanced Materials·Jidong ShiXiaoming Tao
Mar 13, 2020·Advanced Materials·Chao LuXi Chen
Apr 15, 2020·Physical Chemistry Chemical Physics : PCCP·Zhen FengXianqi Dai
Jun 5, 2020·Chemistry : a European Journal·Yongjun LiHan Shen
Sep 5, 2019·Nature Communications·Jiyu XuSheng Meng
Dec 15, 2018·Angewandte Chemie·Hailong YanLanqun Mao
Apr 9, 2020·Frontiers in Bioengineering and Biotechnology·Yanxiao WuWei Chen
Jul 22, 2018·Chemical Communications : Chem Comm·Chao LuWei Chen
Sep 25, 2020·Science Advances·Chuan SunChunlei Wan
Jan 11, 2020·Physical Review Letters·Xian-Lei ShengShengyuan A Yang
Oct 25, 2020·Nature Communications·Manmatha MahatoIl-Kwon Oh
Oct 28, 2020·Advanced Materials·Jiangxin WangPooi See Lee
Nov 6, 2020·Physical Chemistry Chemical Physics : PCCP·Xin LiuChanggong Meng
Nov 25, 2020·Lab on a Chip·Qilong ZhaoXuemin Du
Mar 6, 2021·Journal of the American Chemical Society·Yi-Xiang ShiTing Zhang
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May 25, 2021·Advanced Materials·Alexey V GulyukAlbena Ivanisevic
Jun 9, 2021·ACS Applied Materials & Interfaces·Zheng LiShenqiang Ren
May 25, 2021·Advanced Science·André Torres-PintoAdrián M T Silva
Jun 18, 2021·Frontiers in Chemistry·Qinchao ZhengFanfan Fu
Aug 9, 2021·Small·Qian ChangYuliang Li
Jan 1, 2021·ACS Applied Materials & Interfaces·Zhongjian ZhangShufen Zhang
Jan 31, 2019·Accounts of Chemical Research·Xiaoming Tao
May 31, 2018·ACS Applied Materials & Interfaces·Haihong BaoJun Luo

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Methods Mentioned

BETA
scanning
transmission electron microscopy
electron diffraction
X-ray
electrochemical microscopy
2 hybrid
irradiate

Software Mentioned

ChemBioOffice

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