Porous inorganic nanostructures with colloidal dimensions: synthesis and applications in electrochemical energy devices

2014 ◽  
Vol 50 (17) ◽  
pp. 2077-2088 ◽  
Author(s):  
Pedro Tartaj ◽  
Jose M. Amarilla
Keyword(s):  
Renewable Energy ◽  
Fuel Cells ◽  
Energy Devices ◽  
Electrochemical Devices ◽  
Inorganic Nanostructures ◽  
Electrochemical Energy

Porous colloidal nanostructures are ideal materials for batteries, supercapacitors, solar and fuel cells (electrochemical devices that operate on renewable energy).

scholarly journals Significance of Molten Hydroxides With or Without Molten Carbonates in High-Temperature Electrochemical Devices

2021 ◽  
Vol 9 ◽  
Author(s):  
Ersan Gürbüz ◽  
Elisa Grépin ◽  
Armelle Ringuedé ◽  
Virginie Lair ◽  
Michel Cassir
Keyword(s):  
Fuel Cells ◽  
High Temperature ◽  
Molten Carbonate ◽  
Energy Devices ◽  
Key Species ◽  
Molten Carbonate Fuel Cells ◽  
Electrochemical Devices ◽  
Molten Hydroxides ◽  
Direct Use ◽  
Reactive Media

Due to their low melting point and high conductivity molten hydroxides are interesting electrolytes, or additive to other molten electrolytes for high-temperature electrochemical devices. There is nowadays a revival of such reactive media, first of all for their significant role in the electrode mechanisms in molten carbonate fuel cells (MCFCs) and the reverse co-electrolysis of water and carbon dioxide process, but also in different applications, among which direct carbon fuel cells (DCFCs), hybrid carbonate/oxide fuel cells. This overview shows the properties and interest of molten hydroxides and their use in relevant energy devices, pointing out their direct use as electrolytic media or as key species in complex kinetic processes. A thorough understanding of their behavior should allow improving and optimizing significantly fuel cells, electrolyzers, and probably also CO2 capture and valorization.

scholarly journals Polymer Electrolyte Membranes

Membranes ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 244
Author(s):  
Byungchan Bae ◽  
Dukjoon Kim
Keyword(s):  
Fuel Cells ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membranes ◽  
Capacitive Deionization ◽  
Lithium Secondary Batteries ◽  
Energy Devices ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Electrolyte Membranes ◽  
Electrochemical Energy

Recently, polymer electrolyte membranes have been used in various electrochemical energy devices and other applications, such as fuel cells, lithium secondary batteries, redox flow batteries, electrodialysis, and membrane capacitive deionization [...]

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 Erratic electric power challenges in Africa and the way forward via the adoption of human biogas resources

2021 ◽  
pp. 014459872110036
Author(s):  
Moses E Emetere ◽  
O Agubo ◽  
L Chikwendu
Keyword(s):  
Renewable Energy ◽  
Electric Power ◽  
Technological Innovations ◽  
Government Agencies ◽  
Electric Power Supply ◽  
Energy Devices ◽  
Gas Generators ◽  
Financial Base ◽  
Energy Companies ◽  
The Way

This paper examines a broad spectrum of challenges plaguing electric power supply in Africa. The challenges have lingered very long that policymakers, energy companies, and government agencies have shown docility in tackling the problem headlong. The increasing human population and technological innovations are evidence that the more the problem lingers, the more it becomes insurmountable. In this paper, it was proposed the lingering challenges can be solved using the standalone system of power generation. The renewable energy option and its adaptability were highlighted to guide standalone users on the way forward. The growing population in Africa can be advantageous in generating biogas from human feaces. It was discovered that renewable energy devices are quite expensive; hence, the biogas option for cooking and powering gas generators seem to be sustainable as its technology can be modified to suit the users' financial base. Therefore, it is projected that if the human excretal biogas can be adopted, Africa will soon overcome its energy crisis through the doggedness of its standalone users.

Capacitive Bioanodes Enable Renewable Energy Storage in Microbial Fuel Cells

2012 ◽  
Vol 46 (6) ◽  
pp. 3554-3560 ◽  
Author(s):  
Alexandra Deeke ◽  
Tom H. J. A. Sleutels ◽  
Hubertus V. M. Hamelers ◽  
Cees J. N. Buisman
Keyword(s):  
Renewable Energy ◽  
Fuel Cells ◽  
Energy Storage ◽  
Microbial Fuel Cells ◽  
Renewable Energy Storage

Strategic priorities for assessing ecological impacts of marine renewable energy devices in the Pentland Firth (Scotland, UK)

Marine Policy ◽  
2009 ◽  
Vol 33 (4) ◽  
pp. 635-642 ◽  
Author(s):  
Mark A. Shields ◽  
Lora Jane Dillon ◽  
David K. Woolf ◽  
Alex T. Ford
Keyword(s):  
Renewable Energy ◽  
Ecological Impacts ◽  
Energy Devices ◽  
Marine Renewable Energy
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