Defect‐Rich Soft Carbon Porous Nanosheets for Fast and High‐Capacity Sodium‐Ion Storage

2018 ◽  
Vol 9 (6) ◽  
pp. 1803260 ◽  
Author(s):  
Xuhui Yao ◽  
Yajie Ke ◽  
Wenhao Ren ◽  
Xuanpeng Wang ◽  
Fangyu Xiong ◽  
...  
Keyword(s):  
High Capacity ◽  
Sodium Ion ◽  
Porous Nanosheets ◽  
Ion Storage ◽  
Soft Carbon ◽  
Sodium Ion Storage

scholarly journals Defect-Rich Soft Carbon Porous Nanosheets for Fast and High-Capacity Sodium-Ion Storage

2019 ◽  
Vol 9 (8) ◽  
pp. 1900094 ◽  
Author(s):  
Xuhui Yao ◽  
Yajie Ke ◽  
Wenhao Ren ◽  
Xuanpeng Wang ◽  
Fangyu Xiong ◽  
...  
Keyword(s):  
High Capacity ◽  
Sodium Ion ◽  
Porous Nanosheets ◽  
Ion Storage ◽  
Soft Carbon ◽  
Sodium Ion Storage

scholarly journals N-Doped Modified Graphene/Fe2O3 Nanocomposites as High-Performance Anode Material for Sodium Ion Storage

Nanomaterials ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1770
Author(s):  
Yaowu Chen ◽  
Zhu Guo ◽  
Bangquan Jian ◽  
Cheng Zheng ◽  
Haiyan Zhang
Keyword(s):  
Nitrogen Doping ◽  
Graphene Nanosheets ◽  
High Capacity ◽  
High Energy ◽  
Sodium Ion ◽  
High Energy Density ◽  
Fe2o3 Nanoparticles ◽  
Storage Devices ◽  
Ion Storage ◽  
Sodium Ion Storage

Sodium-ion storage devices have received widespread attention because of their abundant sodium resources, low cost and high energy density, which verges on lithium-ion storage devices. Electrochemical redox reactions of metal oxides offer a new approach to construct high-capacity anodes for sodium-ion storage devices. However, the poor rate performance, low Coulombic efficiency, and undesirable cycle stability of the redox conversion anodes remain a huge challenge for the practical application of sodium ion energy storage devices due to sluggish kinetics and irreversible structural change of most conversion anodes during cycling. Herein, a nitrogen-doping graphene/Fe2O3 (N-GF-300) composite material was successfully prepared as a sodium-ion storage anode for sodium ion batteries and sodium ion supercapacitors through a water bath and an annealing process, where Fe2O3 nanoparticles with a homogenous size of about 30 nm were uniformly anchored on the graphene nanosheets. The nitrogen-doping graphene structure enhanced the connection between Fe2O3 nanoparticles with graphene nanosheets to improve electrical conductivity and buffer the volume change of the material for high capacity and stable cycle performance. The N-GF-300 anode material delivered a high reversible discharge capacity of 638 mAh g−1 at a current density of 0.1 A g−1 and retained 428.3 mAh g−1 at 0.5 A g−1 after 100 cycles, indicating a strong cyclability of the SIBs. The asymmetrical N-GF-300//graphene SIC exhibited a high energy density and power density with 58 Wh kg−1 at 1365 W kg−1 in organic solution. The experimental results from this work clearly illustrate that the nitrogen-doping graphene/Fe2O3 composite material N-GF-300 is a potential feasibility for sodium-ion storage devices, which further reveals that the nitrogen doping approach is an effective technique for modifying carbon matrix composites for high reaction kinetics during cycles in sodium-ion storage devices and even other electrochemical storage devices.

Fabrication of strong internal electric field ZnS/Fe9S10 heterostructures for highly efficient sodium ion storage

2019 ◽  
Vol 7 (19) ◽  
pp. 11771-11781 ◽  
Author(s):  
Chengzhi Zhang ◽  
Fei Han ◽  
Jianmin Ma ◽  
Zheng Li ◽  
Fuquan Zhang ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Electric Field ◽  
Carrier Transport ◽  
High Capacity ◽  
Sodium Ion ◽  
High Rate ◽  
Charge Carrier Transport ◽  
Internal Electric Field ◽  
Ion Storage ◽  
Sodium Ion Storage

Heterostructure anode material have been developed by engineering internal electric field to boost charge carrier transport for high-rate and high-capacity sodium ion storage.

Capacitive Sodium‐Ion Storage Based on Double‐Layered Mesoporous Graphene with High Capacity and Charging/Discharging Rate

ChemSusChem ◽  
2019 ◽  
Vol 12 (18) ◽  
pp. 4323-4331 ◽  
Author(s):  
Xiao Zhu ◽  
Qinyuan Jiang ◽  
Tianshuai Wang ◽  
Qianfan Zhang ◽  
Xilai Jia ◽  
...  
Keyword(s):  
High Capacity ◽  
Sodium Ion ◽  
Ion Storage ◽  
Sodium Ion Storage

Rationally Designed Yolk-Shell Co9S8-Co1-xS Hollow Spheres for Advanced Sodium-ion Storage

2021 ◽  
Author(s):  
Yuanyi Luo ◽  
Ludi Shi ◽  
Huanze He ◽  
Guangtao Cong ◽  
Caizhen Zhu ◽  
...  
Keyword(s):  
Hollow Spheres ◽  
High Capacity ◽  
Sodium Ion ◽  
Metal Sulfides ◽  
Sodium Ion Batteries ◽  
Transitional Metal ◽  
Ion Storage ◽  
Sodium Ion Storage

As one of the most promising sodium-ion batteries (SIBs) anodes, transitional metal sulfides (TMSs) have been extensively studied for their high capacity and abundant resources. However, the performance of TMSs...

scholarly journals Coaxial Carbon Nanotube Supported TiO2@MoO2@Carbon Core–Shell Anode for Ultrafast and High-Capacity Sodium Ion Storage

ACS Nano ◽  
2018 ◽  
Vol 13 (1) ◽  
pp. 671-680 ◽  
Author(s):  
Chunrong Ma ◽  
Xiang Li ◽  
Changjian Deng ◽  
Yan-Yan Hu ◽  
Sungsik Lee ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
High Capacity ◽  
Sodium Ion ◽  
Core Shell ◽  
Ion Storage ◽  
Carbon Core ◽  
Supported Tio2 ◽  
Sodium Ion Storage

scholarly journals Correction to Coaxial Carbon Nanotube Supported TiO2@MoO2@Carbon Core–Shell Anode for Ultrafast and High-Capacity Sodium Ion Storage

ACS Nano ◽  
2019 ◽  
Author(s):  
Chunrong Ma ◽  
Xiang Li ◽  
Changjian Deng ◽  
Yan-Yan Hu ◽  
Sungsik Lee ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
High Capacity ◽  
Sodium Ion ◽  
Core Shell ◽  
Ion Storage ◽  
Carbon Core ◽  
Supported Tio2 ◽  
Sodium Ion Storage

Sulfur-functionalized three-dimensional graphene monoliths as high-performance anodes for ultrafast sodium-ion storage

2018 ◽  
Vol 54 (34) ◽  
pp. 4317-4320 ◽  
Author(s):  
Dequn Zheng ◽  
Jun Zhang ◽  
Wei Lv ◽  
Tengfei Cao ◽  
Siwei Zhang ◽  
...  
Keyword(s):  
High Performance ◽  
Three Dimensional ◽  
High Capacity ◽  
Sodium Ion ◽  
Functionalized Graphene ◽  
Porous Framework ◽  
Storage Performance ◽  
Ion Storage ◽  
Sodium Ion Storage

Sulfur-functionalized graphene monoliths with a three-dimensional porous framework as anodes show a high capacity and ultrafast sodium ion storage performance.

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