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  1. Khí quyển của sao Hải Vương chứa thành phần cơ bản là hydro và heli, cùng một số ít các hydrocarbon và có lẽ cả nitơ, tương tự như của Sao Mộc hay Sao Thổ. Tuy nhiên khí quyển của nó chứa tỷ lệ lớn hơn các phân tử "băng" như nước, amonia, và methan.

  2. en.wikipedia.org › wiki › Fuel_cellFuel cell - Wikipedia

    A fuel cell is an electrochemical cell that converts the chemical energy of a fuel (often hydrogen) and an oxidizing agent (often oxygen) [1] into electricity through a pair of redox reactions. [2] .

  3. 1 Νοε 2023 · Hydrogen fuel cell (FC) technology has improved significantly and can play a vital role in energy strategies to improve the efficiency and decarbonization of energy systems as a form of the environmentally friendly energy sector.

  4. Hydrogen fuel cells: how do they work? Similar to batteries, a fuel cell is a device that converts energy stored in molecules into electricity through an electrochemical reaction. Composed of two electrodes (an anode and a cathode) separated by an electrolyte membrane, a typical hydrogen fuel cell works in the following way:

  5. Key Fuel Cell Benefits. Low-maintenance; no recharging required. Quiet operation. High reliability. Can provide power from a variety of fuels (not just hydrogen) 2-3x more efficient than internal combustion engines. Zero emissions at point of use

  6. In a fuel cell, hydrogen energy is converted directly into electricity with high efficiency and low power losses. Hydrogen, therefore, is an energy carrier, which is used to move, store, and deliver energy produced from other sources. Learn more about: Hydrogen fuel. Fuel cells.

  7. 13 Ιουλ 2018 · July 13, 2018 – Washington, D.C. What is a fuel cell? Takes hydrogen in and puts electricity and water vapor out. Produces. electricity. combustion. Fuel Cells are more energy efficient. Twice as efficient as a gasoline car and water out of tailpipe. What is hydrogen? Lightest of all gases and a versatile, clean and flexible energy carrier.