Superhydrophilic nickel hydroxide ultrathin nanosheets enable high-performance asymmetric supercapacitors AITranslate

2Hao-Hang Xu,Liang Yue,Yang Tang,Fan Liu,Hong-Jiu Zhu,Shu-Juan Bao.Preparation of chitosan and citric acid crosslinked membrane and its application in quasi-solid supercapacitors[J].Rare Metals,2023,42(2):430-437. 被引量：1

4Meng Zhou,Sheng-Xue Yan,Qing Wang,Ming-Xiu Tan,Deng-Yang Wang,Zi-Qi Yu,Shao-Hua Luo,Ya-Hui Zhang,Xin Liu.Walnut septum-derived hierarchical porous carbon for ultra-high-performance supercapacitors[J].Rare Metals,2022,41(7):2280-2291. 被引量：2

1Making Plastics Greener and More Useful[J].Bulletin of the Chinese Academy of Sciences,2023,37(3):135-136.

2Jing-Wen,Duan Mu,Min-Rui Gao.Advances in bio-inspired electrocatalysts for clean energy future[J].Nano Research,2024,17(2):515-533. 被引量：3

3Jiaxin Liu,Yue Shi,Yanli Gu,Zheng Lv,Liang Zhao,Yu Yang,Tianrong Zhan,Jianping Lai,Lei Wang.Regulate electric double layer for one-step synthesize and modulate the morphology of(oxy)hydroxides[J].Nano Research,2024,17(5):3675-3683.

4Lingshuang Qin,Wei Zhang,Rui Cao.Hydrophilic MnO_(2) nanowires coating with o-fluoroaniline for electrocatalytic water oxidation[J].Chinese Journal of Structural Chemistry,2023,42(8):31-36.

5Yan Li,Jie Han,Weiwei Bao,Junjun Zhang,Taotao Ai,Mameng Yang,Chunming Yang,Pengfei Zhang.Self-derivation and reconstruction of silver nanoparticle reinforced cobalt-nickel bimetallic hydroxides through interface engineering for overall water splitting[J].Journal of Energy Chemistry,2024,90(3):590-599.

6KOU JianGe,WANG YiXuan,CHEN ZhenLei,SHI Yan,GUO Qing,XU Meng.Flexible assistance strategy of lower limb rehabilitation exoskeleton based on admittance model[J].Science China(Technological Sciences),2024,67(3):823-834.

7Yanling Chen,Liang Guo,Wanchen Sun,Yuying Yan,Rong Xuan,Junfeng Zhang.Experimental Study on Impingement Processes of Fuel Sprays on Biomimetic Structured Surfaces[J].Journal of Bionic Engineering,2024,21(1):362-373.

8Zhiyang Huang,Miao Liao,Shifan Zhang,Lixia Wang,Mingcheng Gao,Zuyang Luo,Tayirjan Taylor Isimjan,Bao Wang,Xiulin Yang.Valence electronic engineering of superhydrophilic Dy-evoked Ni-MOF outperforming RuO_(2) for highly efficient electrocatalytic oxygen evolution[J].Journal of Energy Chemistry,2024,90(3):244-252.

9马天勇,张莎,张晨虎,李志伟,王涛,李发伸.Effect of seed layers on the static and dynamic magnetic properties of CoIr films with negative effective magnetocrystalline anisotropy[J].Chinese Physics B,2023,32(12):554-559.

10Jing Miao,Qingling Hong,Liping Liang,Guomin Li,Zhihong Liu,Shibin Yin,Yu Chen.B and Fe co-doped Co_(2)P hollow nanocubes for nitrate electroreduction to ammonia[J].Chinese Chemical Letters,2024,35(2):278-282.

Basic Information:

DOI：

Chinese Library Classification Number:TM53[电气工程—电器];TB383.1[一般工业技术—材料科学与工程]

Citation Information:

Superhydrophilic surfaces have been applied for supercapacitor;however,during energy storage reaction,how the wettability affects the process of electrochemical reaction specifically is still unclear.Herein,we demonstrate superhydrophilic surface for promotion of electrochemical reactions by liquid affinity and further explain the mechanism,where the transition of the wettability state caused by the change in surface free energy is the main reason for the obvious increase in specific capacitance.Through citric acid assistance strategy,an intrinsically hydrophobic Ni(OH)₂thick nanosheets(HNHTNs,16 nm)can be transitioned into superhydrophilic Ni(OH)₂ultrathin nanosheets(SNHUNs,6.8 nm),where the water contact angle was 0°and the surface free energy increased from 8.6to 65.8 mN·m^-1,implying superhydrophilicity.Compared with HNHTNs,the specific capacitance of SNHUNs is doubled:from 1230 F·g^-1(HNHTNs)to 2350 F·g^-1(2A·g^-1)and,even at 20 A·g^-1,from 833 F·g^-1(HNHTNs)to 1670 F·g^-1.The asymmetric capacitors assembled by SNHUNs and activated carbon show 52.44 Wh·kg^-1at 160W·kg^-1and excellent stability with~90%retention after5000 cycles(~80%retention after 9500 cycles).The promotion of electrochemical performances is ascribed to the change of surface wettability caused by surface free energy,which greatly increase affinity of electrode to the surrounding liquid environment to reduce the interface resistance and optimize the electron transport path.