Categories: Fuel cells | Environment | Sustainability | Sustainable technologies | Climate change A fuel cell is an electrochemical device similar to a battery, but differing from the latter in that it is designed for continuous replenishment of the reactants consumed; i. ... Diagram of an Alkaline Fuel Cell The alkaline fuel cell (AFC), also known as the Bacon fuel cell after its British inventor, is one of the most developed fuel cell technologies and is the cell that flew Man to the Moon. ... Blue energy is the energy retrieved from the difference in the salt concentration between seawater and river water with the use of osmosis or reverse electro dialysis (RED) with ion specific membranes. ... Direct Borohydride Fuel Cell or DBFCs are a subcategory of Proton-exchange fuel cells where the fuel is a solution of Sodium borohydride. ... Definition DEFC uses Ethanol in the fuel cell instead of the toxic methanol. ... Direct-methanol fuel cells or DMFCs are a subcategory of Proton-exchange fuel cells where, the fuel, methanol, is not reformed, but fed directly to the fuel cell. ... An electro-galvanic fuel cell is an electrical device used to measure the concentration of oxygen gas in SCUBA diving and medical equipment. ... The Formic acid fuel cell is a type of fuel cell that uses formic acid as a fuel. ... Scheme of a molten-carbonate fuel cell Molten-carbonate fuel cells (MCFCs) are high-temperature fuel cells, in the range of 600ºC. Their main problem is corrosion, and the need to operate a high-temperature liquid rather than a solid as in the solid-oxide fuel cells. ... A microbial fuel cell exploits electrical currents generated by bacteria. ... Metal hydride fuel cells are a subclass of alkaline fuel cells that are currently in the research and development phase. ... This new type of fuel cell is based on a ceramic electrolyte material that exhibits high protonic conductivity at elevated temperatures. ... A photoelectrochemical cell uses electromagnetic radiation including visible light to produce hydrogen, in a similar way to electrolysis of water. ... Diagram of a PEM fuel cell Proton exchange membrane fuel cells, also known as polymer electrolyte membrane fuel cells (PEMFC), are a type of fuel cell being developed for transport applications as well as for stationary and portable applications. ... A Flow Battery is a form of secondary battery in which the electrolytes are not confined to within the power cell its self. ... By nature, all fuel cells - which are devices meant to convert chemical energy into electrical energy - can also be operated backwards. ... Scheme of a solid-oxide fuel cell Solid oxide fuel cells, or SOFC, are intended mainly for stationary applications with an output of 1 kW and larger (power plants). ... Zinc-air batteries, also called zinc-air fuel cells are a non-rechargeable electro-chemical battery powered by the oxidation of zinc with oxygen from the air. ... A hydrogen economy is a hypothetical future economy in which energy, for mobile applications (vehicles, aircraft) and electrical grid load balancing (daily peak demand reserve), is stored as hydrogen (H2). ... // Hydrogen storage Main article: Hydrogen economy Storage is the main technological problem of a viable hydrogen economy. ... A hydrogen station is a storage or filling station for hydrogen, usually located along a road or highway, or at home as part of the distributed generation resources concept. ... Sequel, a fuel cell powered vehicle from General Motors A hydrogen vehicle is a vehicle, such as an automobile or aircraft, which uses hydrogen as its primary source of power for locomotion. ... Image File history File links Crystal_128_energy. ... In physics and engineering, energy conversion is any process of converting energy from one form to another. ... // Energy development is the ongoing effort to provide sustainable, accessible energy resources through knowledge, skills, and constructions. ... This article or section does not cite its references or sources. ... For the physical concepts, see conservation of energy and energy efficiency. ...