A facile novel preparation of three-dimensional Ni@graphene by catalyzed glucose blowing for high-performance supercapacitor electrodes

RSC Advances ◽  
2015 ◽  
Vol 5 (91) ◽  
pp. 74463-74466 ◽  
Author(s):  
Lizhong Liu ◽  
Huanli Wang ◽  
Zhengwei Zhou ◽  
Guangyu He ◽  
Xiaoqiang Sun ◽  
...  
Keyword(s):  
Low Temperature ◽  
High Performance ◽  
Three Dimensional ◽  
One Step ◽  
Calcination Method ◽  
First Time

Three-dimensional Ni@graphene with high-electrochemical activities was prepared for the first time at a low temperature by a one-step calcination method.

Three-dimensional graphene/polyimide composite-derived flexible high-performance organic cathode for rechargeable lithium and sodium batteries

2017 ◽  
Vol 5 (6) ◽  
pp. 2710-2716 ◽  
Author(s):  
Yanshan Huang ◽  
Ke Li ◽  
Jingjing Liu ◽  
Xing Zhong ◽  
Xiangfeng Duan ◽  
...  
Keyword(s):  
High Performance ◽  
Three Dimensional ◽  
3D Graphene ◽  
Sodium Batteries ◽  
One Step

A 3D graphene/polyimide composite is fabricated by a one-step solvothermal strategy as a high-performance cathode for both rechargeable lithium and sodium batteries.

Facile one-step mechanochemical synthesis of [Cu(tu)]Cl·1/2H2O nanobelts for high-performance supercapacitor

RSC Advances ◽  
2015 ◽  
Vol 5 (48) ◽  
pp. 38527-38532 ◽  
Author(s):  
Di Guo ◽  
Hongxu Guo ◽  
Yingchang Ke ◽  
Dongfang Wang ◽  
Jianhua Chen ◽  
...  
Keyword(s):  
Mechanochemical Synthesis ◽  
Electrode Material ◽  
High Performance ◽  
Mechanochemical Process ◽  
One Step ◽  
First Time

A facile one-step mechanochemical process from CuCl2·2H2O and thiourea to fabricate novel [Cu(tu)]Cl·1/2H2O nanobelts has been observed for the first time, and the nanobelts were used as an electrode material for a supercapacitor.

Three-dimensional graphene oxide/polypyrrole composite electrodes fabricated by one-step electrodeposition for high performance supercapacitors

2015 ◽  
Vol 3 (27) ◽  
pp. 14445-14457 ◽  
Author(s):  
Jianyun Cao ◽  
Yaming Wang ◽  
Junchen Chen ◽  
Xiaohong Li ◽  
Frank C. Walsh ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
High Performance ◽  
Three Dimensional ◽  
Composite Electrodes ◽  
Ion Diffusion ◽  
One Step ◽  
Supercapacitor Performance ◽  
Polypyrrole Composite ◽  
Fast Ion ◽  
Interconnected Structure

The 3D interconnected structure of the GO/PPy composite ensures fast ion diffusion through the electrode, leading to excellent supercapacitor performance.

scholarly journals Complex Three-Dimensional Co3O4 Nano-Raspberry: Highly Stable and Active Low-temperature CO Oxidation Catalyst

Nanomaterials ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 662 ◽  
Author(s):  
Teruaki Fuchigami ◽  
Ryosuke Kimata ◽  
Masaaki Haneda ◽  
Ken-ichi Kakimoto
Keyword(s):  
Low Temperature ◽  
Co Oxidation ◽  
High Performance ◽  
Noble Metals ◽  
Three Dimensional ◽  
Oxidation Catalyst ◽  
High Catalytic Activity ◽  
Co3o4 Nanoparticles ◽  
Bridging Ligands ◽  
Low Temperature Co Oxidation

Highly stable and active low-temperature CO oxidation catalysts without noble metals are desirable to achieve a sustainable society. While zero-dimensional to three-dimensional Co3O4 nanoparticles show high catalytic activity, simple-structured nanocrystals easily self-aggregate and become sintered during catalytic reaction. Thus, complex three-dimensional nanostructures with high stability are of considerable interest. However, the controlled synthesis of complex nanoscale shapes remains a great challenge as no synthesis theory has been established. In this study, 100 nm raspberry-shaped nanoparticles composed of 7–8 nm Co3O4 nanoparticles were synthesized by hydrothermally treating cobalt glycolate solution with sodium sulfate. Surface single nanometer-scale structures with large surface areas of 89 m2·g−1 and abundant oxygen vacancies were produced. The sulfate ions functioned as bridging ligands to promote self-assembly and suppress particle growth. The Co3O4 nano-raspberry was highly stable under catalytic tests at 350 °C and achieved nearly 100% CO conversion at room temperature. The addition of bridging ligands is an effective method to control the formation of complex but ordered three-dimensional nanostructures that possessed extreme thermal and chemical stability and exhibited high performance.

Low temperature growth of three-dimensional network of graphene for high-performance supercapacitor electrodes

2018 ◽  
Vol 218 ◽  
pp. 90-94 ◽  
Author(s):  
Li Zheng ◽  
Xinhong Cheng ◽  
Peiyi Ye ◽  
Lingyan Shen ◽  
Qian Wang ◽  
...  
Keyword(s):  
Low Temperature ◽  
High Performance ◽  
Three Dimensional ◽  
Temperature Growth ◽  
Low Temperature Growth ◽  
Dimensional Network

Femtosecond Laser One-Step Microfabrication of Optical Fiber Inline Square Resonators for Chemical Sensing

2007 ◽  
Author(s):  
Yukun Han ◽  
Songping Wu ◽  
Bala P. B. Chitturi ◽  
Hai-Lung Tsai ◽  
Tao Wei ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Chemical Etching ◽  
Three Dimensional ◽  
Q Factor ◽  
Sensing Applications ◽  
Post Annealing ◽  
Fs Laser ◽  
One Step ◽  
Silica Optical Fiber ◽  
First Time

We report, for the first time, the effort to one-step micromachine an optical fiber inline square resonator by femtosecond (fs) laser ablations. Such an inline square resonator is intended for infield chemical and biological sensing applications. Our preliminary data shows the feasibility of directly machining three dimensional microstructures on a silica optical fiber with a diameter of 125μm. The observed low quality (Q) factor can be further improved by post annealing and chemical etching processes that smooth the surface roughness.

RBF-based mesh morphing approach to perform icing simulations in the aviation sector

2019 ◽  
Vol 91 (4) ◽  
pp. 620-633 ◽  
Author(s):  
Corrado Groth ◽  
Emiliano Costa ◽  
Marco Evangelos Biancolini
Keyword(s):  
High Performance ◽  
Three Dimensional ◽  
Ansys Fluent ◽  
Content Type ◽  
Mesh Morphing ◽  
Computational Fluid Dynamics Cfd ◽  
Cfd Analyses ◽  
2D And 3D ◽  
First Time ◽  
Practical Implications

Purpose Numerical simulation of icing has become a standard. Once the iced shape is known, however, the analyst needs to update the computational fluid dynamics (CFD) grid. This paper aims to propose a method to update the numerical mesh with ice profiles. Design/methodology/approach The present paper concerns a novel and fast radial basis functions (RBF) mesh morphing technique to efficiently and accurately perform ice accretion simulations on industrial models in the aviation sector. This method can be linked to CFD analyses to dynamically reproduce the ice growth. Findings To verify the consistency of the proposed approach, one of the most challenging ice profile selected in the LEWICE manual was replicated and simulated through CFD. To showcase the effectiveness of this technique, predefined ice profiles were automatically applied on two-dimensional (2D) and three-dimensional (3D) cases using both commercial and open-source CFD solvers. Practical implications If ice accreted shapes are available, the meshless characteristic of the proposed approach enables its coupling with the CFD solvers currently supported by the RBF4AERO platform including OpenFOAM, SU2 and ANSYS Fluent. The advantages provided by the use of RBF are the high performance and reliability, due to the fast application of mesh smoothing and the accuracy in controlling surface mesh nodes. Originality/value As far as authors’ knowledge is concerned, this is the first time in scientific literature that RBF are proposed to handle icing simulations. Due to the meshless characteristic of the RBF mesh morphing, the proposed approach is cross solver and can be used for both 2D and 3D geometries.

Crystal morphology evolution of Ni–Co layered double hydroxide nanostructure towards high-performance biotemplate asymmetric supercapacitors

CrystEngComm ◽  
2018 ◽  
Vol 20 (46) ◽  
pp. 7428-7434 ◽  
Author(s):  
Chuan Jing ◽  
Xiaoli Liu ◽  
Xiaoying Liu ◽  
Debin Jiang ◽  
Biqin Dong ◽  
...  
Keyword(s):  
Layered Double Hydroxide ◽  
High Performance ◽  
Crystal Morphology ◽  
Three Dimensional ◽  
Morphology Evolution ◽  
Porous Structures ◽  
Asymmetric Supercapacitors ◽  
Nickel Cobalt ◽  
One Step ◽  
Double Hydroxide

Hierarchical three-dimensional (3D) porous structures of nickel–cobalt layered double hydroxide (LDH) are grown on diatomite biotemplate via one-step hydrothermal method.

scholarly journals One-step synthesis of Ni3S2nanorod@Ni(OH)2nanosheet core–shell nanostructures on a three-dimensional graphene network for high-performance supercapacitors

2013 ◽  
Vol 6 (7) ◽  
pp. 2216-2221 ◽  
Author(s):  
Weijia Zhou ◽  
Xiehong Cao ◽  
Zhiyuan Zeng ◽  
Wenhui Shi ◽  
Yuanyuan Zhu ◽  
...  
Keyword(s):  
High Performance ◽  
Three Dimensional ◽  
Core Shell ◽  
Shell Nanostructures ◽  
One Step
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