Abstract
Supercapacitors are favored by researchers because of their high power density,especially with the ac-celeration of people's life rhythm.However,their energy density,especially from the point of view of the whole energy storage device,is far lower than that of commercial batteries.In this work,a kind of cus-tomizable full paper-based supercapacitor device with excellent self-healing ability is fabricated by simple and low-cost screen printing,electropolymerization and dip coating methods.The resultant separator-free supercapacitor device exhibits both ultrahigh gravimetric and areal specific energy(power)densities of 39 Wh kg-1(69 kW kg-1)and 692 μWh cm-2(236 mW cm-2),achieving excellent supercapacitor performance.Notably,the addition of vitrimers endows the whole device with outstanding self-healing properties,which is helpful for enhancing the adaptability of the device to the environment.In addition,this kind of paper-based device also displays good photothermal and electromagnetic shielding perfor-mances.These striking features make paper matrix composites attractive in the fields of supercapacitors,medical photothermal treatment and electromagnetic shielding.
基金项目
国家自然科学基金(22078184)
China Postdoc-toral Science Foundation(2019M653853XB)
陕西省自然科学基金(2020JQ-729)
Key Projects of Collaborative Innovation Center of Shaanxi Provincial Depart-ment of Education()
Opening Project of Guangxi Key Laboratory of Clean Pulp&Papermaking and Pollution Control(2019KF21)
Natural Science Advance Research Foundation of Shaanxi University of Science and Technology(2018QNBJ-03)
National Demonstration Center for Experimental Light Chemistry Engineer-ing Education(2018QGSJ02-13)
Jiangxi Qingyue Technol-ogy Co.,Ltd(210200122)
Biomass Chemistry and Ma-terials Academician Workstation Project in SUST(134090002)
NETL
NSTL
维普
万方数据