Silicon Nanostructures-Graphene Nanocomposites

2014 ◽  
pp. 176-195
Author(s):  
Chaitanya Krishna Kamaja ◽  
M. Rajaperumal ◽  
Rabah Boukherroub ◽  
Manjusha V. Shelke
Keyword(s):  
Solar Cells ◽  
Energy Conversion ◽  
Graphene Nanosheets ◽  
Electronic Conductivity ◽  
Graphene Nanocomposites ◽  
Storage Devices ◽  
Energy Conversion And Storage ◽  
Enhance Efficiency ◽  
Si Nanostructures ◽  
And Storage

Global demand of energy is increasing at an alarming rate, and nanotechnology is being looked at as a potential solution to meet this challenge (Holtren, 2007). Although the efficiency of energy conversion and storage devices depends on a variety of factors, the overall performance strongly relies on the structure and properties of the component materials (Whitesides, 2007). Compared to conventional materials, silicon (Si) nanostructures and graphene nanosheets possess unique properties (i.e. morphological, electrical, optical, and mechanical) useful for enhancing the energy-conversion and storage performances. Graphene can enhance efficiency of nano-Si based solar cells and battery due to its high electronic conductivity, ultrahigh mobility, high transparency, and strong mechanical property. This chapter provides a comprehensive review of recent progress and material challenges in energy conversion (solar cells) and storage (batteries/supercapacitors) with specific focus on composites of Si nanostructures-graphene nanosheets.

scholarly journals Applications of 2D MXenes for Electrochemical Energy Conversion and Storage

Energies ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 8183
Author(s):  
Chenchen Ji ◽  
Haonan Cui ◽  
Hongyu Mi ◽  
Shengchun Yang
Keyword(s):  
Energy Storage ◽  
Energy Conversion ◽  
Electrode Materials ◽  
Special Functions ◽  
Electronic Conductivity ◽  
Lithium Ion ◽  
Storage Devices ◽  
High Electronic Conductivity ◽  
Energy Conversion And Storage ◽  
And Storage

As newly emerged 2D layered transition metal carbides or carbonitrides, MXenes have attracted growing attention in energy conversion and storage applications due to their exceptional high electronic conductivity, ample functional groups (e.g., -OH, -F, -O), desirable hydrophilicity, and superior dispersibility in aqueous solutions. The significant advantages of MXenes enable them to be intriguing structural units to engineer advanced MXene-based nanocomposites for electrochemical storage devices with remarkable performances. Herein, this review summarizes the current advances of MXene-based materials for energy storage (e.g., supercapacitors, lithium ion batteries, and zinc ion storage devices), in which the fabrication routes and the special functions of MXenes for electrode materials, conductive matrix, surface modification, heteroatom doping, crumpling, and protective layer to prevent dendrite growth are highlighted. Additionally, given that MXene are versatile for self-assembling into specific configuration with geometric flexibility, great efforts about methodologies (e.g., vacuum filtration, mask-assisted filtration, screen printing, extrusion printing technique, and directly writing) of patterned MXene-based composite film or MXene-based conductive ink for fabricating more types of energy storage device were also discussed. Finally, the existing challenges and prospects of MXene-based materials and growing trend for further energy storage devices are also presented.

Smart fibers for energy conversion and storage

2021 ◽  
Author(s):  
Wujun Ma ◽  
Yang Zhang ◽  
Shaowu Pan ◽  
Yanhua Cheng ◽  
Ziyu Shao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Conversion ◽  
Energy Conversion And Storage ◽  
And Storage

This review summarizes the achievements of fiber-shaped nanogenerators, solar cells, supercapacitors and batteries.

Graphene, related two-dimensional crystals, and hybrid systems for energy conversion and storage

Science ◽  
2015 ◽  
Vol 347 (6217) ◽  
pp. 1246501 ◽  
Author(s):  
Francesco Bonaccorso ◽  
Luigi Colombo ◽  
Guihua Yu ◽  
Meryl Stoller ◽  
Valentina Tozzini ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Hybrid Systems ◽  
Dye Sensitized Solar Cells ◽  
Ionic Species ◽  
Two Dimensional ◽  
Storage Devices ◽  
Energy Needs ◽  
Energy Conversion And Storage ◽  
And Storage ◽  
Sensitized Solar Cells

Graphene and related two-dimensional crystals and hybrid systems showcase several key properties that can address emerging energy needs, in particular for the ever growing market of portable and wearable energy conversion and storage devices. Graphene’s flexibility, large surface area, and chemical stability, combined with its excellent electrical and thermal conductivity, make it promising as a catalyst in fuel and dye-sensitized solar cells. Chemically functionalized graphene can also improve storage and diffusion of ionic species and electric charge in batteries and supercapacitors. Two-dimensional crystals provide optoelectronic and photocatalytic properties complementing those of graphene, enabling the realization of ultrathin-film photovoltaic devices or systems for hydrogen production. Here, we review the use of graphene and related materials for energy conversion and storage, outlining the roadmap for future applications.

Application of carbon fibers to flexible, miniaturized wire/fiber-shaped energy conversion and storage devices

2017 ◽  
Vol 5 (6) ◽  
pp. 2444-2459 ◽  
Author(s):  
Xin Cai ◽  
Chaoqun Zhang ◽  
Shengsen Zhang ◽  
Yueping Fang ◽  
Dechun Zou
Keyword(s):  
Energy Conversion ◽  
Carbon Fibers ◽  
Recent Progress ◽  
Power Devices ◽  
Storage Devices ◽  
Energy Conversion And Storage ◽  
And Storage

An overview of recent progress in wire/fiber-shaped flexible power devices made from micro-carbon fibers is given.

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