Business
Hydrogen is poised to accelerate the global energy transition as the industry exhibits steep learning curves and finds ways to produce the gas more efficiently and at lower cost, according to a new study from researchers ...
Nov 15, 2023
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Energy & Green Tech
Research in the International Journal of Exergy has looked at how a novel small-scale power-to-ammonia (P2A) system might be a useful tool in the move to a hydrogen economy. The work considers the energy efficiency and cost-effectiveness ...
Nov 3, 2023
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5
Energy & Green Tech
An Australia-based company plans to build a campus in New Mexico to expand its research into hydrogen fuel as a heat source for industry, touting a proprietary chemical process without greenhouse gas emissions.
Oct 26, 2023
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Engineering
MIT engineers aim to produce totally green, carbon-free hydrogen fuel with a new, train-like system of reactors that is driven solely by the sun.
Oct 16, 2023
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87
Energy & Green Tech
President Joe Biden announced new "hydrogen hubs" across the United States on Friday as part of efforts to boost the economy with green energy ahead of the 2024 election.
Oct 14, 2023
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27
Energy & Green Tech
The Biden administration has announced the locations of seven regional manufacturing hubs that will receive a portion of $7 billion in initial funding to help jumpstart a hydrogen industry.
Oct 13, 2023
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4
Energy & Green Tech
Researchers at Lund University in Sweden are investigating a car fuel comprised of a liquid that is converted to hydrogen by a solid catalyst. The used liquid is then emptied from the tank and charged with hydrogen, after ...
Oct 12, 2023
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76
Energy & Green Tech
A European consortium on Wednesday said it had in a world first successfully tested a gas turbine fully powered by hydrogen, opening the way to slashing carbon emissions in energy-intensive industries like cement.
Oct 11, 2023
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113
Business
As renewable energy sources like wind and solar ramp up, they can be used to sustainably generate hydrogen fuel. But implementing such a strategy on a large scale requires land and water dedicated to this purpose.
Sep 21, 2023
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Energy & Green Tech
Hydrogen is viewed as a promising alternative to fossil fuel, but the methods used to make it either generate too much carbon dioxide or are too expensive. Rice University researchers have found a way to harvest hydrogen ...
Sep 14, 2023
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Hydrogen (pronounced /ˈhaɪdrədʒən/) is the chemical element with atomic number 1. It is represented by the symbol H. At standard temperature and pressure, hydrogen is a colorless, odorless, nonmetallic, tasteless, highly flammable diatomic gas with the molecular formula H2. With an atomic weight of 1.00794 u, hydrogen is the lightest element.
Hydrogen is the most abundant chemical element, constituting roughly 75% of the universe's elemental mass. Stars in the main sequence are mainly composed of hydrogen in its plasma state. Elemental hydrogen is relatively rare on Earth. Industrial production is from hydrocarbons such as methane with most being used "captively" at the production site. The two largest uses are in fossil fuel processing (e.g., hydrocracking) and ammonia production mostly for the fertilizer market. Hydrogen may be produced from water by electrolysis at substantially greater cost than production from natural gas.
The most common isotope of hydrogen is protium (name rarely used, symbol H) with a single proton and no neutrons. In ionic compounds it can take a negative charge (an anion known as a hydride and written as H−), or as a positively-charged species H+. The latter cation is written as though composed of a bare proton, but in reality, hydrogen cations in ionic compounds always occur as more complex species. Hydrogen forms compounds with most elements and is present in water and most organic compounds. It plays a particularly important role in acid-base chemistry with many reactions exchanging protons between soluble molecules. As the only neutral atom with an analytic solution to the Schrödinger equation, the study of the energetics and bonding of the hydrogen atom played a key role in the development of quantum mechanics.
Hydrogen is important in metallurgy as it can embrittle many metals, complicating the design of pipelines and storage tanks. Hydrogen is highly soluble in many rare earth and transition metals and is soluble in both nanocrystalline and amorphous metals. Hydrogen solubility in metals is influenced by local distortions or impurities in the crystal lattice.
This text uses material from Wikipedia, licensed under CC BY-SA
