The hydrogen economy is a term for the role hydrogen as an energy carrier to complement electricity as part of a long-term option to reduce emissions of greenhouse gases. The aim is to reduce emission
A NASA engineer sweeps an area with a corn broom to find the location of a hydrogen fire. Hydrogen burns with a nearly-invisible flame.
Hydrogen gasification plant for Belinka Perkemija [sl], 2015
A Mercedes-Benz O530 Citaro powered by hydrogen fuel cells in Brno, Czech Republic
A fuel cell is an electrochemical cell that converts the chemical energy of a fuel and an oxidizing agent into electricity through a pair of redox reactions. Fuel cells are different from most batteri
Hydrogen economy
…efficiency of methanol production from that would be a 49% energy conversion efficiency. Hydrogen can be deployed as a fuel in two distinct ways: in fuel cells which produce electricity, and via combustion to generate heat. When hydrogen is consumed in fuel cells, the only emission at the point of use is water…
Demonstration model of a direct methanol fuel cell (black layered cube) in its enclosure
Sketch of Sir William Grove's 1839 fuel cell
Condensation of water produced by a PEMFC on the air channel wall. The gold wire around the cell ensures the collection of electric current.
SEM micrograph of a PEMFC MEA cross-section with a non-precious metal catalyst cathode and Pt/C anode. False colors applied for clarity.