Energy & Green Tech
Hydrogen has emerged as the energy technology that could help nations like Australia to decarbonize their economies. But did you know that, beyond green and blue hydrogen, there's a whole rainbow of hydrogen types?
May 17, 2022
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Engineering
A prototype cooking appliance developed by Oak Ridge National Laboratory uses a 50% blend of hydrogen and natural gas, offering an alternative to safely reduce emissions that contribute to the nation's carbon footprint.
Apr 4, 2022
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Energy & Green Tech
Louisiana, Oklahoma and Arkansas are banding together in hopes of becoming one of four "hydrogen hubs" supported by $8 billion in last year's federal infrastructure bill, their governors announced Thursday.
Mar 11, 2022
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Energy & Green Tech
Four Rocky Mountain states will cooperate on developing ways to make the most abundant element in the universe, hydrogen, more available and useful as clean-burning fuel for cars, trucks and trains, the states' governors ...
Feb 24, 2022
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Energy & Green Tech
Coal is at the centre of Australia and Japan's long partnership in energy trade. But as Japan seeks to slash its emissions in coming decades, this relationship will change.
Feb 3, 2022
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Energy & Green Tech
The use of hydrogen as a replacement for fossil fuels has the potential to lower greenhouse gas (GHG) emissions and contribute to more sustainable energy systems.
Dec 13, 2021
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Energy & Green Tech
Hydrogen has been touted as the fuel of the future, and the technology features prominently in the Morrison government's plan to reach net-zero emissions by 2050.
Nov 19, 2021
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Automotive
A Seattle engineering company is building one of the world's first zero-emission engines for a massive mining truck in a warehouse packed with "Star Wars" memorabilia and machines named after "Saturday Night Live" characters.
Sep 15, 2021
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Energy & Green Tech
The UK's long-awaited hydrogen strategy has set out the government's plans for "a world-leading hydrogen economy" that it says would generate £900 million (US$1.2 million) and create over 9,000 jobs by 2030, "potentially ...
Aug 18, 2021
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Energy & Green Tech
The U.S. is counting on hydrogen to play a significant role in the low-carbon economy of the future, but fundamental questions about transportation, storage and cost need to be addressed in order to integrate hydrogen gas ...
Jun 28, 2021
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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
