Core-shell nanostructured Zn-Co-O@CoS arrays for high-performance hybrid supercapacitors

2021 ◽  
Author(s):  
Yi He ◽  
Lei Xie ◽  
Shixiang Ding ◽  
Yujia Long ◽  
Xinyi Zhou ◽  
...  

Although the zinc oxide (ZnO) with wide distribution is one of the most attractive energy storage materials, the low electronic conductivity and insufficient active sites of bulk ZnO increase the...

2021 ◽  
Vol 9 ◽  
Author(s):  
Jiage Yu ◽  
Zhijie Liu ◽  
Xian Zhang ◽  
Yu Ding ◽  
Zhengbing Fu ◽  
...  

As a bimetal oxide, partial zinc stannate (ZnSnO3) is one of the most promising next-generation lithium anode materials, which has the advantages of low operating voltage, large theoretical capacity (1,317 mA h g−1), and low cost. However, the shortcomings of large volume expansion and poor electrical conductivity hinder its practical application. The core-shell ZnSnO3@ nitrogen-doped carbon (ZSO@NC) nanocomposite was successfully obtained by coating ZnSnO3 with polypyrrole (PPy) through in situ polymerization under ice-bath conditions. Benefiting from this unique compact structure, the shell formed by PPy cannot only effectively alleviate the volume expansion effect of ZnSnO3 but also enhance the electrical conductivity, thus, greatly improving the lithium storage performance. ZSO@NC can deliver a reversible capacity of 967 mA h g−1 at 0.1 A g−1 after 300 cycles and 365 mA h g−1 at 2 A g−1 after 1,000 cycles. This work may provide a new avenue for the synthesis of bimetal oxide with a core–shell structure for high-performance energy storage materials.


2021 ◽  
Author(s):  
Tarun Parangi ◽  
Manish Kumar Mishra

With the increased attention on sustainable energy, a novel interest has been generated towards construction of energy storage materials and energy conversion devices at minimum environmental impact. Apart from the various potential applications of titanium dioxide (TiO2), a variety of TiO2 nanostructure (nanoparticles, nanorods, nanoneedles, nanowires, and nanotubes) are being studied as a promising materials in durable active battery materials. The specific features such as high safety, low cost, thermal and chemical stability, and moderate capacity of TiO2 nanomaterial made itself as a most interesting candidate for fulfilling the current demand and understanding the related challenges towards the preparation of effective energy storage system. Many more synthetic approaches have been adapted to design different nanostructures for improving the electronic conductivity of TiO2 by combining with other materials such as carbonaceous materials, conducting polymers, metal oxides etc. The combination can be done through incorporating and doping methods to synthesize TiO2-based anodic materials having more open channels and active sites for lithium and/or sodium ion transportation. The present chapter contained a broad literature and discussion on the synthetic approaches for TiO2-based anodic materials for enhancing the lithium ion batteries (LIBs) and sodium ion batteries (SIBs) performance. Based on lithium storage mechanism and role of anodic material, we could conclude on future exploitation development of titania and titania based materials as energy storage materials.


Nanoscale ◽  
2021 ◽  
Author(s):  
Huifang Yang ◽  
Haoran Guo ◽  
Xinpan Li ◽  
Wenlu Ren ◽  
Rui Song

The electrode material with hierarchical nanostructure derived from transition metal-based compound is an important branch of energy storage materials and has attracted widespread attention in recent years. Herein, the Cu-Ni(OH)2@CoO...


Nanoscale ◽  
2021 ◽  
Author(s):  
Yuanqing He ◽  
Zihan Zhang ◽  
Gen Chen ◽  
Ying Zhang ◽  
Xiaohe Liu ◽  
...  

Silicon is a crucial part in developing high-performance energy storage materials, owing to a high specific capacity as compared to carbon. Moreover, nanoscale silicon is beneficial to reduce its inherent...


Author(s):  
Masumeh Moloudi ◽  
Mohammad Safi Rahmanifar ◽  
Abolhassan Noori ◽  
xueying Chang ◽  
Richard B Kaner ◽  
...  

The ongoing surge in demand for sustainable energy technologies with little to no environmental impacts calls for the exploration of advanced energy storage materials. Inspiration from nature is undoubtedly a...


Author(s):  
Ramyakrishna Pothu ◽  
Ravi Bolagam ◽  
Qing-Hong Wang ◽  
Wei Ni ◽  
Jin-Feng Cai ◽  
...  

2020 ◽  
Vol 8 (45) ◽  
pp. 24065-24074
Author(s):  
Weisheng Yang ◽  
Xiu Wang ◽  
Liang Jiao ◽  
Huiyang Bian ◽  
Yongzheng Qiao ◽  
...  

Lignin, a renewable and low-cost biopolymer, has been widely reported as an energy-storage material.


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