Seed-assisted growth of α-Fe2O3 nanorod arrays on reduced graphene oxide: a superior anode for high-performance Li-ion and Na-ion batteries

2016 ◽  
Vol 4 (30) ◽  
pp. 11800-11811 ◽  
Author(s):  
Dezhi Kong ◽  
Chuanwei Cheng ◽  
Ye Wang ◽  
Bo Liu ◽  
Zhixiang Huang ◽  
...  

α-Fe2O3 nanorod/reduced graphene oxide nanosheet composites are fabricated using a facile and scalable seed-assisted hydrothermal growth route and further investigated as superior anodes for both lithium-ion and sodium-ion batteries with high capacity and long-cycling life.

Author(s):  
Miao Guo ◽  
Shulin Zhong ◽  
Tian Xu ◽  
Yuqin Huang ◽  
Guanglin Xia ◽  
...  

Transition metal carbon/nitrogen compound (MXene) materials have been regarded as promising candidates for lithium-ion storage.


Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7521
Author(s):  
Hosung Hwang ◽  
Honggyu Seong ◽  
So Yi Lee ◽  
Joon Ha Moon ◽  
Sung Kuk Kim ◽  
...  

Sodium ion batteries (SIBs) have drawn interest as a lithium ion battery (LIB) alternative owing to their low price and low deposits. To commercialize SIBs similar to how LIBs already have been, it is necessary to develop improved anode materials that have high stability and capacity to operate over many and long cycles. This paper reports the development of homogeneous Sb2S3 nanorods (Sb2S3 NRs) on reduced graphene oxide (Sb2S3 NRs @rGO) as anode materials for SIBs. Based on this work, Sb2S3 NRs show a discharge capacity of 564.42 mAh/g at 100 mA/g current density after 100 cycles. In developing a composite with reduced graphene oxide, Sb2S3 NRs@rGO present better cycling performance with a discharge capacity of 769.05 mAh/g at the same condition. This achievement justifies the importance of developing Sb2S3 NRs and Sb2S3 NRs@rGO for SIBs.


2018 ◽  
Vol 6 (14) ◽  
pp. 6096-6106 ◽  
Author(s):  
Deepak P. Dubal ◽  
Kolleboyina Jayaramulu ◽  
Radek Zboril ◽  
Roland A. Fischer ◽  
Pedro Gomez-Romero

A high energy and high power density Li-ion capacitor based on BiVO4 nanorods (left) and partially reduced graphene oxide nanosheets (PRGO, on right) for EV applications.


2016 ◽  
Vol 4 (47) ◽  
pp. 18306-18313 ◽  
Author(s):  
Yeryung Jeon ◽  
Xiaogang Han ◽  
Kun Fu ◽  
Jiaqi Dai ◽  
Joo Hyun Kim ◽  
...  

Sn is a promising anode material for sodium ion batteries due to its high capacity.


Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2691
Author(s):  
Su-Ho Cho ◽  
Jong-Heon Kim ◽  
Il-Gyu Kim ◽  
Jeong-Ho Park ◽  
Ji-Won Jung ◽  
...  

Sodium-ion batteries (SIBs) have been increasingly studied due to sodium (Na) being an inexpensive ionic resource (Na) and their battery chemistry being similar to that of current lithium-ion batteries (LIBs). However, SIBs have faced substantial challenges in developing high-performance anode materials that can reversibly store Na+ in the host structure. To address these challenges, molybdenum sulfide (MoS2)-based active materials have been considered as promising anodes, owing to the two-dimensional layered structure of MoS2 for stably (de)inserting Na+. Nevertheless, intrinsic issues of MoS2—such as low electronic conductivity and the loss of active S elements after a conversion reaction—have limited the viability of MoS2 in practical SIBs. Here, we report MoS2 embedded in carbon nanofibers encapsulated with a reduced graphene oxide (MoS2@CNFs@rGO) composite for SIB anodes. The MoS2@CNFs@rGO delivered a high capacity of 345.8 mAh g−1 at a current density of 100 mA g−1 for 90 cycles. The CNFs and rGO were synergistically taken into account for providing rapid pathways for electrons and preventing the dissolution of S sources during repetitive conversion reactions. This work offers a new point of view to realize MoS2-based anode materials in practical SIBs.


NANO ◽  
2015 ◽  
Vol 10 (04) ◽  
pp. 1550054
Author(s):  
Haibo Li ◽  
Rui Niu ◽  
Sen Liang ◽  
Yulong Ma ◽  
Min Luo ◽  
...  

In this work, the sulfonated reduced graphene oxide (SRGO) was synthesized and proposed as an enhanced anode material for lithium ion battery (LIB). The result shows that the SRGO has an improved battery performance (i.e., ∼341.7 mAh/g and ∼190.6 mAh/g corresponds to SRGO and RGO at the 100th cycle with a current density of 200 mA/g) and superior cycling stability compared with pristine reduced graphene oxide (RGO). These are attributed to the improved specific surface area (448.35 m2/g) and conductivity (2.5 × 10-4 S/m). Further, the SRGO exhibits good rate capability and excellent energy density at various current densities ranging from 50 mAh/g to 2000 mAh/g, suggesting that SRGO could be a promising anode material for high capacity LIB.


2018 ◽  
Vol 3 (43) ◽  
pp. 12108-12112 ◽  
Author(s):  
Xiaoqing Liu ◽  
Dan Zhang ◽  
Guangshe Li ◽  
Chenglin Xue ◽  
Junfang Ding ◽  
...  

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