Pseudocapacitive Charge Storage in Thin Nanobelts

作     者：Ria Kunwar Midhun Harilal Syam G.Krishnan Bhupender Pal Izan Izwan Misnon C.R.Mariappan Fabian I.Ezema Hendry Izaac Elim Chun-Chen Yang Rajan Jose 

作者机构：Nanostructured Renewable Energy Materials LaboratoryFaculty of Industrial Sciences and TechnologyUniversiti Malaysia Pahang26300 KuantanPahangMalaysia Department of PhysicsNational Institute of TechnologyKurukshetraHaryana 136119India Department of Physics and AstronomyUniversity of NigeriaNsukkaNigeria Department of PhysicsUniversity of PattimuraAmbonIndonesia Battery Research Centre of Green EnergyMing Chi University of TechnologyNew TaipeiTaiwan 

出 版 物：《Advanced Fiber Materials》 (先进纤维材料（英文）)

年 卷 期：2019年第1卷第3期

页      面：205-213页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 070301[理学-无机化学] 

基　　金：This work is supported by the Research and Inno-vation Department of University Malaysia Pahang(http://ump.edu.my)under the Flagship Leap 3 Program(RDU172201) 

主　　题：Battery-supercapacitor hybrid devices Energy storage materials Hybrid materials 

摘      要：This article reports that extremely thin nanobelts(thickness~10 nm)exhibit pseudocapacitive(PC)charge storage in the asymmetric supercapacitor(ASC)configuration,while show battery-type charge storage in their single *** types of nanobelts,***-Co_(3)O_(4) hybrid and spinal-type NiCo_(2)O_(4),developed by electrospinning technique are used in this *** charge storage behaviour of the nanobelts is benchmarked against their binary metal oxide nanowires,i.e.,NiO and Co_(3)O_(4),as well as a hybrid of similar chemistry,CuO-Co_(3)O_(4).The nanobelts have thickness of~10 nm and width~200 nm,whereas the nanowires have diameter of~100 *** differences in charge storage behaviours are observed in NiO-Co_(3)O_(4) hybrid nanobelts based ASCs compared to those fabricated using the other materials-the former showed capacitive behav-iour whereas the others revealed battery-type discharge *** of pseudocapacitance in nanobelts based ASCs is shown to arise from their nanobelts morphology with thickness less than typical electron diffusion lengths(~20 nm).Among all the five type of devices fabricated,the NiO-Co_(3)O_(4) hybrid ASCs exhibited the highest specific energy,specific power and cycling stability.