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  2. Hydrogen - Wikipedia

    en.wikipedia.org/wiki/Hydrogen

    Hydrogen is a chemical element; it has symbol H and atomic number 1. It is the lightest element and, at standard conditions, is a gas of diatomic molecules with the formula H 2, sometimes called dihydrogen, [11] but more commonly called hydrogen gas, molecular hydrogen or simply hydrogen.

  3. Hydrogen economy - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_economy

    Hydrogen has the most potential to reduce greenhouse gas emissions when used in chemical production, refineries, international shipping, and steelmaking [1]. The hydrogen economy is an umbrella term for the roles hydrogen can play alongside low-carbon electricity to reduce emissions of greenhouse gases.

  4. Biological roles of the elements - Wikipedia

    en.wikipedia.org/wiki/Biological_roles_of_the...

    A large fraction of the chemical elements that occur naturally on the Earth's surface are essential to the structure and metabolism of living things. Four of these elements (hydrogen, carbon, nitrogen, and oxygen) are essential to every living thing and collectively make up 99% of the mass of protoplasm. [1]

  5. Why Hydrogen Fuel Is The Next Big Green Thing - AOL

    www.aol.com/news/why-hydrogen-fuel-next-big...

    As COVID-19 starts to take up less of the world's attention, the issue of climate change and green energy is growing. It's impossible to ignore the impact of fossil fuels and pollution on our ...

  6. What is green hydrogen and why is it touted as a clean fuel?

    www.aol.com/news/green-hydrogen-why-touted-clean...

    Green hydrogen is being touted around the world as a clean energy solution to take the carbon out of high-emitting sectors like transport and industrial manufacturing. The India-led International ...

  7. Hydrogen ion - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_ion

    The concentration of hydrogen ions and pH are inversely proportional; in an aqueous solution, an increased concentration of hydrogen ions yields a low pH, and subsequently, an acidic product. By definition, an acid is an ion or molecule that can donate a proton, and when introduced to a solution it will react with water molecules (H 2 O) to ...

  8. Hydrogen energy could power your flight in a few years. Here ...

    www.aol.com/hydrogen-energy-could-power-flight...

    Why the interest in hydrogen Dr. Tim Liewen is the executive director of Georgia Institute of Technology’s Strategic Energy Institute and a professor in the School of Aerospace Engineering is at ...

  9. Hydrogen evolution reaction - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_evolution_reaction

    Hydrogen evolution reaction (HER) is a chemical reaction that yields H 2. [1] The conversion of protons to H 2 requires reducing equivalents and usually a catalyst. In nature, HER is catalyzed by hydrogenase enzymes. Commercial electrolyzers typically employ supported platinum as the catalyst at the anode of the electrolyzer.