scholarly journals Binder-Free Centimeter-Long V2O5 Nanofibers on Carbon Cloth as Cathode Material for Zinc-Ion Batteries

Energies ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 31 ◽  
Author(s):  
Lyn Marie De Juan-Corpuz ◽  
Ryan Dula Corpuz ◽  
Anongnat Somwangthanaroj ◽  
Mai Thanh Nguyen ◽  
Tetsu Yonezawa ◽  
...  
Keyword(s):  
Cathode Material ◽  
Low Cost ◽  
Hydrothermal Process ◽  
Active Material ◽  
Current Collector ◽  
Zinc Ion ◽  
Carbon Cloth ◽  
One Step ◽  
Binder Free ◽  
Novel Strategy

Recently, rechargeable aqueous zinc-ion batteries (AZBs) have attracted extensive interest due to their safety, abundance, low cost, and low toxicity. However, aqueous electrolytes require a polymeric binder to prevent dissolution of the active material in addition to its binding properties. This study highlights binder-free, centimeter long, single-crystal, V2O5 nanofibers (BCS-VONF) on carbon cloth, as the cathode material for AZBs synthesized via a simple one-step hydrothermal process. BCS-VONF in 3.0 M Zn(OTf)2 exhibit promising electrochemical performance with excellent capacity retention. Even in the absence of a binder, BCS-VONF were found to be very stable in 3.0 M Zn(OTf)2. They will not yield to the dissolution and detachment of the active material on the current collector. The novel strategy described in this study is an essential step for the development of BCS-VONF on carbon cloth, as a promising cathode material for AZBs.

scholarly journals Binder-Free α-MnO2 Nanowires on Carbon Cloth as Cathode Material for Zinc-Ion Batteries

2020 ◽  
Vol 21 (9) ◽  
pp. 3113 ◽  
Author(s):  
Ryan Dula Corpuz ◽  
Lyn Marie De Juan-Corpuz ◽  
Mai Thanh Nguyen ◽  
Tetsu Yonezawa ◽  
Heng-Liang Wu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Low Cost ◽  
Hydrothermal Process ◽  
Zinc Ion ◽  
Carbon Cloth ◽  
Zinc Deposition ◽  
Elemental Analyses ◽  
One Step ◽  
Binder Free ◽  
Mno2 Nanowires

Recently, rechargeable zinc-ion batteries (ZIBs) have gained a considerable amount of attention due to their high safety, low toxicity, abundance, and low cost. Traditionally, a composite manganese oxide (MnO2) and a conductive carbon having a polymeric binder are used as a positive electrode. In general, a binder is employed to bond all materials together and to prevent detachment and dissolution of the active materials. Herein, the synthesis of α-MnO2 nanowires on carbon cloth via a simple one-step hydrothermal process and its electrochemical performance, as a binder-free cathode in aqueous and nonaqueous-based ZIBs, is duly reported. Morphological and elemental analyses reveal a single crystal α-MnO2 having homogeneous nanowire morphology with preferential growth along {001}. It is significant that analysis of the electrochemical performance of the α-MnO2 nanowires demonstrates more stable capacity and superior cyclability in a dimethyl sulfoxide (DMSO) electrolyte ZIB than in an aqueous electrolyte system. This is because DMSO can prevent irreversible proton insertion as well as unfavorable dendritic zinc deposition. The application of the binder-free α-MnO2 nanowires cathode in DMSO can promote follow-up research on the high cyclability of ZIBs.

scholarly journals Simple synthesis of ZnO nanoparticles on N-doped reduced graphene oxide for the electrocatalytic sensing of l-cysteine

RSC Advances ◽  
2017 ◽  
Vol 7 (56) ◽  
pp. 35004-35011 ◽  
Author(s):  
Suling Yang ◽  
Gang Li ◽  
Chen Qu ◽  
Guifang Wang ◽  
Dan Wang
Keyword(s):  
Graphene Oxide ◽  
Low Temperature ◽  
Reduced Graphene Oxide ◽  
Zno Nanoparticles ◽  
Low Cost ◽  
Hydrothermal Process ◽  
Simple Synthesis ◽  
Zno Nanoparticle ◽  
Reduced Graphene ◽  
One Step

A new kind of ZnO nanoparticle/N-doped reduced graphene oxide nanocomposite (ZnONPs/N-rGO) was synthesized through a low temperature, low-cost and one step hydrothermal process.

scholarly journals Monodispersed LiFePO4@C Core-Shell Nanoparticles Anchored on 3D Carbon Cloth for High-Rate Performance Binder-Free Lithium Ion Battery Cathode

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Boqiao Li ◽  
Wei Zhao ◽  
Chen Zhang ◽  
Zhe Yang ◽  
Fei Dang ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Current Collector ◽  
High Rate ◽  
Core Shell ◽  
Carbon Cloth ◽  
Rate Performance ◽  
Active Materials ◽  
Binder Free ◽  
High Rate Performance

Owing to high safety, low cost, nontoxicity, and environment-friendly features, LiFePO4 that is served as the lithium ion battery cathode has attracted much attention. In this paper, a novel 3D LiFePO4@C core-shell configuration anchored on carbon cloth is synthesized by a facile impregnation sol-gel approach. Through the binder-free structure, the active materials can be directly combined with the current collector to avoid the falling of active materials and achieve the high-efficiency lithium ion and electron transfer. The traditional slurry-casting technique is applicable for pasting LiFePO4@C powders onto the 2D aluminum foil current collector (LFP-Al). By contrast, LFP-CC exhibits a reversible specific capacity of 140 mAh·g-1 and 93.3 mAh·g-1 at 1C and 10C, respectively. After 500 cycles, no obvious capacity decay can be observed at 10C while keeping the coulombic efficiency above 98%. Because of its excellent capacity, high-rate performance, stable electrochemical performance, and good flexibility, this material has great potentials of developing the next-generation high-rate performance lithium ion battery and preparing the binder-free flexible cathode.

Green-low-cost rechargeable aqueous zinc-ion batteries using hollow porous spinel ZnMn2O4as the cathode material

2017 ◽  
Vol 5 (34) ◽  
pp. 17990-17997 ◽  
Author(s):  
Xianwen Wu ◽  
Yanhong Xiang ◽  
Qingjing Peng ◽  
Xiangsi Wu ◽  
Yehua Li ◽  
...  
Keyword(s):  
Cathode Material ◽  
Porous Structure ◽  
Low Cost ◽  
Zinc Ion ◽  
Polyvinyl Pyrrolidone ◽  
Carbon Template

Deficient spinel ZnMn2O4with a hollow porous structure was prepared through a solvothermal carbon template dispersed by polyvinyl pyrrolidone.

Glycine-assisted evolution of palygorskite via a one-step hydrothermal process to give an efficient adsorbent for capturing Pb(ii) ions

RSC Advances ◽  
2015 ◽  
Vol 5 (117) ◽  
pp. 96829-96839 ◽  
Author(s):  
Zhifang Zhang ◽  
Wenbo Wang ◽  
Yuru Kang ◽  
Li Zong ◽  
Aiqin Wang
Keyword(s):  
Low Cost ◽  
Hydrothermal Process ◽  
Synthetic Materials ◽  
One Step ◽  
Efficient Adsorbent

As the materials of “green 21st century material worlds”, natural silicates have received unprecedented attention by virtue of their abundance, low-cost, stability, and non-toxic and eco-friendly nature compared to other synthetic materials.

scholarly journals Development of Binder Free Interconnected 3D Flower of NiZn2O4 as an Advanced Electrode Materials for Supercapacitor Applications

Crystals ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 14
Author(s):  
Sajid Ali Ansari ◽  
Nazish Parveen ◽  
Mohd Al Saleh Al-Othoum ◽  
Mohammad Omaish Ansari
Keyword(s):  
Electron Microscopy ◽  
Energy Storage ◽  
Active Sites ◽  
Electrode Materials ◽  
Electrochemical Impedance ◽  
Nickel Foam ◽  
High Surface ◽  
Hydrothermal Process ◽  
Active Material ◽  
Binder Free

The design and development of electrode materials for energy-storage applications is an area of prime focus around the globe because of the shortage of natural resources. In this study, we developed a method for preparing a novel three-dimensional binder-free pseudocapacitive NiZn2O4 active material, which was grown directly over nickel foam (NiZn2O4@3D-NF), using a simple one-step hydrothermal process. The material was characterized by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. Cyclic voltammetry, galvanostatic charge–discharge, and electrochemical impedance spectroscopy techniques were employed to evaluate the pseudocapacitive performance of the NiZn2O4 active material in a three-electrode assembly cell. The prepared NiZn2O4@3D-NF electrode exhibited an excellent specific capacitance, of 1706.25 F/g, compared to that of the NiO@3D-NF (1050 F/g) electrode because it has the bimetallic characteristics of both zinc and nickel. The NiZn2O4@3D-NF electrode showed better cyclic stability (87.5% retention) compared to the NiO@3D-NF electrode (80% retention) after 5000 cycles at a fixed current density, which also supports the durability of the NiZn2O4@3D-NF electrode. The characteristics of NiZn2O4@3D-NF include corrosion resistance, high conductivity, an abundance of active sites for electrochemical reaction, a high surface area, and synergism between the bimetallic oxides, which make it a suitable candidate for potential application in the field of energy storage.

Binder-Free Flexible Zinc-Ion Batteries: One-Step Potentiostatic Electrodeposition Strategy Derived Ce Doped-MnO2 Cathode

2021 ◽  
pp. 133387
Author(s):  
Yuanyuan Song ◽  
Jiaming Li ◽  
Rui Qiao ◽  
Xin Dai ◽  
Weitao Jing ◽  
...  
Keyword(s):  
Zinc Ion ◽  
Potentiostatic Electrodeposition ◽  
One Step ◽  
Binder Free

MoO3/CNTs Loading in Separator for Performance-Improving Current-Collector-Free Lithium Ion Batteries

2020 ◽  
Vol 15 (2) ◽  
pp. 204-211
Author(s):  
Peng Peng ◽  
Jiewei Chen ◽  
Kai Niu ◽  
Zhuohai Liu ◽  
Hao Huang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Low Cost ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Current Collector ◽  
Charge Transfer Resistance ◽  
Transfer Resistance ◽  
High Specific Capacity ◽  
Composite Separator ◽  
Novel Strategy

A novel strategy for structural design of current-collector-free lithium ion batteries (LIBs) has been proposed, MoO3/CNTs loading on the single side of a separator by a simple spin-coating method. LIBs with such a MoO3-based composite separator eliminate the need for metal current collectors and exhibit an extra high specific capacity (0.2C, ∼1200 mA h g–1). Faster ion transport and lower charge transfer resistance (Rct) of the composite separator were proved compared with the traditional MoO3-based electrode, which results in the increased special capacity. In addition, the pseudocapacitive effect caused by vacancies and narrow interval in the MoO3/CNTs materials also contributes to the high specific capacity of the batteries. The highly efficient ion and electron transport ability of the composite separator were proved in this study, and such a novel design strategy would be an alternative for low-cost LIBs.

In situ preparation of a binder-free nano-cotton-like CuO–Cu integrated anode on a current collector by laser ablation oxidation for long cycle life Li-ion batteries

2017 ◽  
Vol 5 (37) ◽  
pp. 19781-19789 ◽  
Author(s):  
Peng Liang ◽  
Hongjun Zhang ◽  
Yibo Su ◽  
Zeya Huang ◽  
Chang-An Wang ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Current Collector ◽  
Cycle Life ◽  
Long Cycle ◽  
Long Cycle Life ◽  
In Situ Preparation ◽  
One Step ◽  
Binder Free ◽  
Integrated Anode

In situ preparation of a long cycle life CuO–Cu integrated anode on a Cu current collector by one-step laser ablation.

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