Free‐standing Reduced Graphene Oxide/MoO 3‐ x Composite Film with High Performance for Flexible Supercapacitors

2019 ◽  
Vol 4 (31) ◽  
pp. 9165-9173 ◽  
Author(s):  
Ms. Le Yu ◽  
Shi‐Xi Zhao ◽  
Yi‐Feng Wang ◽  
Qi‐long Wu ◽  
Ms. Xiao‐Xiao Zheng ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Composite Film ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Free Standing ◽  
Flexible Supercapacitors ◽  
Reduced Graphene

Free-standing ultrathin CoMn2O4 nanosheets anchored on reduced graphene oxide for high-performance supercapacitors

2015 ◽  
Vol 44 (43) ◽  
pp. 18737-18742 ◽  
Author(s):  
Guoxin Gao ◽  
Shiyao Lu ◽  
Yang Xiang ◽  
Bitao Dong ◽  
Wei Yan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Annealing Treatment ◽  
Trisodium Citrate ◽  
Precipitation Method ◽  
Free Standing ◽  
Post Annealing ◽  
Reduced Graphene ◽  
Co Precipitation

Free-standing ultrathin CoMn2O4 nanosheets are successfully assembled on reduced graphene oxide via a simple trisodium citrate (TSC) assisted co-precipitation method with a post-annealing treatment.

scholarly journals MnO2 nanoflake/polyaniline nanorod hybrid nanostructures on graphene paper for high-performance flexible supercapacitor electrodes

2015 ◽  
Vol 3 (33) ◽  
pp. 17165-17171 ◽  
Author(s):  
Huailong Li ◽  
Ying He ◽  
Vladimir Pavlinek ◽  
Qilin Cheng ◽  
Petr Saha ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Hybrid Nanostructures ◽  
Supercapacitor Electrode ◽  
Free Standing ◽  
Flexible Supercapacitor ◽  
Reduced Graphene ◽  
Graphene Paper ◽  
Composite Paper

A facile two-step strategy is adopted to construct a free-standing composite paper of MnO2 nanoflake/polyaniline (PANI) nanorod hybrid nanostructures on reduced graphene oxide (RGO) for flexible supercapacitor electrode application.

Free-standing Sandwich Structure MoO3-rGO Composite Film Electrode for Flexible Supercapacitors

MRS Advances ◽  
2019 ◽  
Vol 4 (41-42) ◽  
pp. 2299-2305
Author(s):  
Le Yu ◽  
Shixi Zhao ◽  
Qilong Wu ◽  
Xiaoxiao Zheng ◽  
Yifeng Wang ◽  
...  
Keyword(s):  
Composite Film ◽  
High Performance ◽  
Rapid Development ◽  
Reduction Process ◽  
Film Electrode ◽  
Free Standing ◽  
Filtration Method ◽  
Flexible Supercapacitors ◽  
Excellent Electrochemical Performance ◽  
Reduced Graphene

ABSTRACTThe research of high-performance flexible supercapacitors is urgent due to the rapid development of wearable and portable electronics. The key challenge is the preparation of flexible electrodes with high areal capacitance since electrodes are the most important part of supercapacitors. Compared to those conventional electrodes loading with typical flexible substrates such as textile, PET, paper et al, free-standing electrodes have many advantages such as more efficient capacity contribution, solidly embedded active materials and thinner thickness. Herein, we have successfully fabricated a novel sandwich-like structure free-standing MoO3-rGO (reduced graphene oxide) composite film electrode for flexible supercapacitors using simple vacuum filtration method followed by HI reduction process. The obtained MoO3-rGO composite film electrode shows excellent electrochemical performance, whose areal specific capacitance reaches 8972 mF·cm-2 (1.5 mA·cm-2). Here, MoO3 provides pseudocapacitance and rGO provides double-layer capacitance. After cycling for 2000 cycles, the capacity retention is 86.7%, showing good cycle stability. Besides, the as-prepared composite film has good flexibility and will not break easily during following bending, rolling, folding or twisting steps. This study has been approved to be an important step for the high-performance electrode design for free-standing flexible supercapacitors.

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