Free-standing monolithic nanoporous graphene foam as a high performance aluminum-ion battery cathode

2017 ◽  
Vol 5 (36) ◽  
pp. 19416-19421 ◽  
Author(s):  
Xiaodan Huang ◽  
Yang Liu ◽  
Hongwei Zhang ◽  
Jun Zhang ◽  
Owen Noonan ◽  
...  
Keyword(s):  
High Performance ◽  
Superior Performance ◽  
Free Standing ◽  
Graphene Foam ◽  
Aluminum Ion ◽  
Coin Cell ◽  
Cell Configuration ◽  
Nanoporous Graphene

Aluminum-ion batteries with a new monolithic nanoporous graphene cathode and a novel coin-cell configuration have been developed and delivered superior performance.

scholarly journals Atomic Modulation of 3D Conductive Frameworks Boost Performance of MnO2 for Coaxial Fiber-Shaped Supercapacitors

2020 ◽  
Vol 13 (1) ◽  
Author(s):  
Xiaona Wang ◽  
Zhenyu Zhou ◽  
Zhijian Sun ◽  
Jinho Hah ◽  
Yagang Yao ◽  
...  
Keyword(s):  
Energy Density ◽  
Specific Capacitance ◽  
High Performance ◽  
High Specific Capacitance ◽  
Superior Performance ◽  
High Mass ◽  
Mass Loading ◽  
Energy Storage Devices ◽  
Free Standing ◽  
Cell Potential

Abstract Coaxial fiber-shaped supercapacitors are a promising class of energy storage devices requiring high performance for flexible and miniature electronic devices. Yet, they are still struggling from inferior energy density, which comes from the limited choices in materials and structure used. Here, Zn-doped CuO nanowires were designed as 3D framework for aligned distributing high mass loading of MnO2 nanosheets. Zn could be introduced into the CuO crystal lattice to tune the covalency character and thus improve charge transport. The Zn–CuO@MnO2 as positive electrode obtained superior performance without sacrificing its areal and gravimetric capacitances with the increasing of mass loading of MnO2 due to 3D Zn–CuO framework enabling efficient electron transport. A novel category of free-standing asymmetric coaxial fiber-shaped supercapacitor based on Zn0.11CuO@MnO2 core electrode possesses superior specific capacitance and enhanced cell potential window. This asymmetric coaxial structure provides superior performance including higher capacity and better stability under deformation because of sufficient contact between the electrodes and electrolyte. Based on these advantages, the as-prepared asymmetric coaxial fiber-shaped supercapacitor exhibits a high specific capacitance of 296.6 mF cm−2 and energy density of 133.47 μWh cm−2. In addition, its capacitance retention reaches 76.57% after bending 10,000 times, which demonstrates as-prepared device’s excellent flexibility and long-term cycling stability.

A 3D graphene-supported MoS2 nanosphere and nanosheet heterostructure as a highly efficient free-standing hydrogen evolution electrode

RSC Advances ◽  
2016 ◽  
Vol 6 (37) ◽  
pp. 31359-31362 ◽  
Author(s):  
Xuewan Wang
Keyword(s):  
Hydrogen Evolution ◽  
Superior Performance ◽  
Free Standing ◽  
Graphene Foam ◽  
3D Graphene ◽  
Highly Efficient

A free-standing electrocatalytic electrode was synthesized by uniformly depositing cross-distributed MoS2 nanospheres and nanosheets on a 3D graphene foam, which exhibited superior performance for hydrogen evolution.

Scalable fabrication of MnO2 nanostructure deposited on free-standing Ni nanocone arrays for ultrathin, flexible, high-performance micro-supercapacitor

2014 ◽  
Vol 7 (8) ◽  
pp. 2652-2659 ◽  
Author(s):  
Zijin Su ◽  
Cheng Yang ◽  
Binghe Xie ◽  
Ziyin Lin ◽  
Zhexu Zhang ◽  
...  
Keyword(s):  
Thin Film ◽  
High Performance ◽  
Deposition Process ◽  
Superior Performance ◽  
Free Standing ◽  
Electro Deposition ◽  
Mno2 Nanostructure

A thin film of Ni nanocone arrays loaded with MnO2 nanostructures is prepared by an electro-deposition process and peeled off from the carrier substrate. This electrode shows superior performance for micro-supercapacitors.

Unlocking the potential of commercial carbon nanofibers as free-standing positive electrodes for flexible aluminum ion batteries

2019 ◽  
Vol 7 (25) ◽  
pp. 15123-15130 ◽  
Author(s):  
Yuxiang Hu ◽  
Shaikat Debnath ◽  
Han Hu ◽  
Bin Luo ◽  
Xiaobo Zhu ◽  
...  
Keyword(s):  
Carbon Nanofibers ◽  
High Performance ◽  
Free Standing ◽  
Positive Electrodes ◽  
Aluminum Ion ◽  
Commercial Carbon

Cleaved commercial carbon nanofibers as novel free-standing positive electrodes for high-performance flexible aluminum ion batteries.

Self-assembled cauliflower-like FeS2 anchored into graphene foam as free-standing anode for high-performance lithium-ion batteries

Carbon ◽  
2017 ◽  
Vol 114 ◽  
pp. 111-116 ◽  
Author(s):  
Jiarui He ◽  
Qian Li ◽  
Yuanfu Chen ◽  
Chen Xu ◽  
Keren Zhou ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Lithium Ion ◽  
Free Standing ◽  
Graphene Foam ◽  
Self Assembled

3D Free-Standing NiCo2 O4 @graphene Foam for High-Performance Supercapacitors

2016 ◽  
Vol 4 (6) ◽  
pp. 737-743 ◽  
Author(s):  
Yiying Wei ◽  
Bing Sun ◽  
Dawei Su ◽  
Jianguo Zhu ◽  
Guoxiu Wang
Keyword(s):  
High Performance ◽  
Free Standing ◽  
Graphene Foam

Electrodeposited Co0.85Se thin films as free-standing cathode materials for high-performance hybrid supercapacitors

2021 ◽  
Author(s):  
Aniruddha Mondal ◽  
Chuan-Yi Lee ◽  
Hu Chang ◽  
Panitat Hasin ◽  
Chii-Rong Yang ◽  
...  
Keyword(s):  
Thin Films ◽  
Cathode Materials ◽  
High Performance ◽  
Free Standing ◽  
Hybrid Supercapacitors

Free-standing and flexible CNT/(Fe@Si@SiO2) composite anodes with kernel-pulp-skin nanostructure for high-performance lithium-ion batteries

2021 ◽  
pp. 160396
Author(s):  
Ming Zhang ◽  
Lianghan Li ◽  
Xianlong Jian ◽  
Sen Zhang ◽  
Yuanyuan Shang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Lithium Ion ◽  
Free Standing ◽  
Composite Anodes

A High-Performance Free-Standing Zn Anode for Flexible Zinc-Ion Batteries

Nanoscale ◽  
2021 ◽  
Author(s):  
Chenxi Gao ◽  
Jiawei Wang ◽  
Yuan Huang ◽  
Zixuan Li ◽  
Jiyan Zhang ◽  
...  
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Low Cost ◽  
High Energy ◽  
Zinc Ion ◽  
High Energy Density ◽  
Free Standing ◽  
Energy Device ◽  
Zn Anode ◽  
Significant Attention

Zinc-ion batteries (ZIBs) have attracted significant attention owing to their high safety, high energy density, and low cost. ZIBs have been studied as a potential energy device for portable and...

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