scholarly journals Functional mesoporous materials for energy applications: solar cells, fuel cells, and batteries

Nanoscale ◽  
2013 ◽  
Vol 5 (11) ◽  
pp. 4584 ◽  
Author(s):  
Youngjin Ye ◽  
Changshin Jo ◽  
Inyoung Jeong ◽  
Jinwoo Lee
Keyword(s):  
Solar Cells ◽  
Fuel Cells ◽  
Mesoporous Materials ◽  
Energy Applications

scholarly journals Application of Electrospun Nanofibers for Fabrication of Versatile and Highly Efficient Electrochemical Devices: A Review

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1741
Author(s):  
Seyedeh Nooshin Banitaba ◽  
Andrea Ehrmann
Keyword(s):  
Solar Cells ◽  
Fuel Cells ◽  
Electrochemical Sensors ◽  
Electrospun Nanofibers ◽  
Electrical Energy ◽  
High Specific Surface Area ◽  
Large Space ◽  
Electrolytic Cells ◽  
Research Areas ◽  
Electrochemical Devices

Electrochemical devices convert chemical reactions into electrical energy or, vice versa, electricity into a chemical reaction. While batteries, fuel cells, supercapacitors, solar cells, and sensors belong to the galvanic cells based on the first reaction, electrolytic cells are based on the reversed process and used to decompose chemical compounds by electrolysis. Especially fuel cells, using an electrochemical reaction of hydrogen with an oxidizing agent to produce electricity, and electrolytic cells, e.g., used to split water into hydrogen and oxygen, are of high interest in the ongoing search for production and storage of renewable energies. This review sheds light on recent developments in the area of electrospun electrochemical devices, new materials, techniques, and applications. Starting with a brief introduction into electrospinning, recent research dealing with electrolytic cells, batteries, fuel cells, supercapacitors, electrochemical solar cells, and electrochemical sensors is presented. The paper concentrates on the advantages of electrospun nanofiber mats for these applications which are mostly based on their high specific surface area and the possibility to tailor morphology and material properties during the spinning and post-treatment processes. It is shown that several research areas dealing with electrospun parts of electrochemical devices have already reached a broad state-of-the-art, while other research areas have large space for future investigations.

scholarly journals Advances in the Applications of Graphene-Based Nanocomposites in Clean Energy Materials

Crystals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 47
Author(s):  
Yiqiu Xiang ◽  
Ling Xin ◽  
Jiwei Hu ◽  
Caifang Li ◽  
Jimei Qi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Fuel Cells ◽  
Lithium Ion Batteries ◽  
Electrode Materials ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Clean Energy ◽  
Proton Exchange ◽  
Energy Storage And Conversion ◽  
Thermoelectric Conversion

Extensive use of fossil fuels can lead to energy depletion and serious environmental pollution. Therefore, it is necessary to solve these problems by developing clean energy. Graphene materials own the advantages of high electrocatalytic activity, high conductivity, excellent mechanical strength, strong flexibility, large specific surface area and light weight, thus giving the potential to store electric charge, ions or hydrogen. Graphene-based nanocomposites have become new research hotspots in the field of energy storage and conversion, such as in fuel cells, lithium-ion batteries, solar cells and thermoelectric conversion. Graphene as a catalyst carrier of hydrogen fuel cells has been further modified to obtain higher and more uniform metal dispersion, hence improving the electrocatalyst activity. Moreover, it can complement the network of electroactive materials to buffer the change of electrode volume and prevent the breakage and aggregation of electrode materials, and graphene oxide is also used as a cheap and sustainable proton exchange membrane. In lithium-ion batteries, substituting heteroatoms for carbon atoms in graphene composite electrodes can produce defects on the graphitized surface which have a good reversible specific capacity and increased energy and power densities. In solar cells, the performance of the interface and junction is enhanced by using a few layers of graphene-based composites and more electron-hole pairs are collected; therefore, the conversion efficiency is increased. Graphene has a high Seebeck coefficient, and therefore, it is a potential thermoelectric material. In this paper, we review the latest progress in the synthesis, characterization, evaluation and properties of graphene-based composites and their practical applications in fuel cells, lithium-ion batteries, solar cells and thermoelectric conversion.

A family of solution-processable macrocyclic and open-chain oligothiophenes with atropoisomeric scaffolds: structural and electronic features for potential energy applications

2017 ◽  
Vol 41 (18) ◽  
pp. 10009-10019 ◽  
Author(s):  
E. Quartapelle Procopio ◽  
T. Benincori ◽  
G. Appoloni ◽  
P. R. Mussini ◽  
S. Arnaboldi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Potential Energy ◽  
Bulk Heterojunction ◽  
Open Chain ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells ◽  
Energy Applications ◽  
Inherently Chiral ◽  
Solution Processable

Cyclic and linear inherently chiral oligothiophenes have been employed as donors in bulk heterojunction solar cells with fullerenes as acceptors.

Ab-initio study of lead-free double Perovskites Cs2AgZBr6 (Z = Bi, Sb) for Solar cells and other renewable energy applications

2022 ◽  
Vol 306 ◽  
pp. 122781
Author(s):  
Muhammad Waqas Mukhtar ◽  
M. Ramzan ◽  
Muhammad Rashid ◽  
Altaf Hussain ◽  
Muhammad Imran ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Solar Cells ◽  
Ab Initio ◽  
Lead Free ◽  
Double Perovskites ◽  
Ab Initio Study ◽  
Energy Applications

scholarly journals Analysis of Related Technologies Used in Fuel Cell Vehicles

2021 ◽  
Vol 2125 (1) ◽  
pp. 012011
Author(s):  
Ziyi Du ◽  
Hongxu Zhan
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Automotive Industry ◽  
High Efficiency ◽  
Management Strategies ◽  
Production Model ◽  
Hydrogen Energy ◽  
Fuel Cell Vehicles ◽  
Energy Applications ◽  
Different Types

Abstract Nowadays, many types of fuel cells have made significant progress. In 2014, they were applied to the production model Toyota’s FCHV-Adv. With their high efficiency and low pollution, fuel cells have gradually started to replace some traditional technologies in many energy applications and production industries and have become a hot topic of interest in recent years. Depending on the type of fuel, there are various types, and different fuel cells work on different principles, leading to differences in their performance. This paper lists the different fuel cells and their application scenarios in the automotive industry. In addition, the use of hydrogen in fuel cell vehicles is also a major concern. This paper briefly discusses the current hydrogen production and four different types of fuel cell vehicles and their energy management strategies. All the technical advantages of fuel cells and hydrogen energy are ultimately reflected in fuel cell vehicles, and this paper describes the current challenges and future possibilities.

scholarly journals Economic pulse electrodeposition for flexible CuInSe2 solar cells

2020 ◽  
Vol 9 (3) ◽  
Author(s):  
Sreekanth Mandati ◽  
Prashant Misra ◽  
Divya Boosagulla ◽  
Tata Naransinga Rao ◽  
Bulusu V. Sarada
Keyword(s):  
Solar Cells ◽  
Low Cost ◽  
Electrode System ◽  
Pulse Electrodeposition ◽  
Small Scale ◽  
Complexing Agents ◽  
Large Area ◽  
Advanced Technique ◽  
Glass Substrates ◽  
Energy Applications

Abstract Electrodeposition is one of the leading non-vacuum techniques for the fabrication of CuInSe2 (CIS)-based solar cells. In the present work, pulse electrodeposition, an advanced technique, is utilized effectively for CIS absorber preparation devoid of any additives/complexing agents. An economic pulse electrodeposition is employed for the deposition of Cu/In stack followed by selenization to fabricate CIS absorbers on flexible and glass substrates. The approach uses a two-electrode system suitable for large area deposition and utilizes the fundamentals of pulse electrodeposition with appropriate optimization of parameters to obtain smooth Cu/In precursors. The selenized CIS absorbers are of 1 µm thick while possessing copper-poor composition (Cu/In ≈ 0.9) and tetragonal chalcopyrite phase. The fabricated devices have exhibited a power conversion efficiency of 5.2%. The technique can be further improved to obtain low-cost CIS solar cells which are suitable for various small-scale energy applications.

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