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A hydrogen internal combustion engine vehicle (HICEV) is a type of hydrogen vehicle using an internal combustion engine that burns hydrogen fuel. [1] Hydrogen internal combustion engine vehicles are different from hydrogen fuel cell vehicles (which utilize hydrogen electrochemically rather than through oxidative combustion).
The molecular hydrogen needed as an onboard fuel for hydrogen vehicles can be obtained through many thermochemical methods utilizing natural gas, coal (by a process known as coal gasification), liquefied petroleum gas, biomass (biomass gasification), by a process called thermolysis, or as a microbial waste product called biohydrogen or ...
1991 – Mazda HR-X hydrogen Rotary; 1993 – Mazda HR-X2 hydrogen Rotary; 1993 – Mazda MX-5 Miata hydrogen Rotary; 1995 – Mazda Capella, first public street test of the hydrogen Rotary engine; 2003 – Mazda RX-8 Hydrogen RE hydrogen-gasoline hybrid Rotary; 2005 – Mazda Premacy Hydrogen RE Hybrid; 2007 – Mazda Hydrogen RE Plug in Hybrid
The Toyota Mirai is the biggest-selling hydrogen fuel cell car, but it still only sold about 22,000 units globally by the end of 2022. There were only 2,737 Mirais sold in 2023, and just 245 in ...
Hydrogen fuel enhancement from electrolysis (using automotive alternators) has been promoted for use with gasoline-powered and diesel trucks, [14] [15] [16] although electrolysis-based designs have repeatedly failed efficiency tests and contradict widely accepted laws of thermodynamics (i.e. conservation of energy).
Since hydrogen station growth has stalled and hydrogen prices exploded, fuel cell sales have stalled too. In the first half of 2023, 1,765 such cars were sold or leased. This year's first half: 298.
Why EVs and gas-powered cars sharing the same platform could the be the right move for automakers. ... but can support fully electric, hybrid, gas-powered, and even hydrogen fuel cell powertrains ...
A small number of commercially available hydrogen fuel cell cars currently exist: the Hyundai NEXO, Toytota Mirai, and previously the Honda FCX Clarity. One primary area of research is hydrogen storage, to try to increase the range of hydrogen vehicles while reducing the weight, energy consumption, and complexity of the storage systems. Two ...