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什么是PEM燃料电池和SOFC燃料电池?

什么是质子交换膜燃料电池?What is a PEM fuel cell?

A fuel cell is a device that converts chemical potential energy (energy stored in molecular bonds) into electrical energy. A PEM (Proton Exchange Membrane)feul cell uses hydrogen gas (H2) and oxygen gas (O2) as fuel. The products of the reaction in the cell are water, electricity, and heat. This is a big improvement over internal combustion engines, coal burning power plants, and nuclear power plants, all of which produce harmful by-products.

Since O2 is readily available in the atmosphere, we only need to supply the fuel cell with H2 which can come from an electrolysis process

关于氢作为能量载体的研究

氢也一种像电能的载体,这意味着氢不是主要的能源,但可以用来储存、运输和提供能源,灵活性很高,因为氢可以从许多来源产生,包括风能和太阳能等可再生能源。

About hydrogen as an energy carrier

Hydrogen is also an energy carrier like electricity. This means that hydrogen is not a primary energy source, but can be used to store, transport and provide energy. Flexibility is high, because hydrogen can be produced from many sources, including renewable resources such as wind power and solar energy.

氢对于环境和健康的益处

减少车辆排放对我们的环境和健康都很重要,同样重要的是减少废气污染对我们健康的有害影响,这是当今许多城市地区的一个主要问题,燃料电池技术就是解决方案的一种。

从氢燃料电池的唯一的排放物是纯水,这意味着,例如,使用氢燃料电池技术将从根本上减少汽车中二氧化碳、氧化氮和微粒的排放。

Environmental and health benefits of hydrogen

Reducing emissions from vehicles is important for our environment and also good for our health. It is also important for reducing the harmful effects air pollution from exhaust gases have on our health, a major problem in many urban areas today. Fuel cell technology is a part of the solution.

什么是固体氧化物燃料电池?What is a Solid Oxide Fuel Cell?

A fuel cell is like a battery that always runs. It consists of three parts: an electrolyte, an anode, and a cathode.

For a solid oxide fuel cell, the electrolyte is a solid ceramic material. The anode and cathode are made from special inks that coat the electrolyte. Unlike other types of fuel cells, no precious metals, corrosive acids, or molten materials are required.

Next, an electrochemical reaction converts fuel and air into energy, specifically electricity without combustion.

A solid oxide fuel cell (SOFC) is a high temperature fuel cell. At high temperature, warmed air enters the cathode side of the fuel cell and steam mixes with fuel to produce reformed fuelwhich enters on the anode side.

Next, the chemical reaction begins in the fuel cell. As the reformed fuel crosses the anode, it attracts oxygen ions from the cathode. The oxygen ions combine with the reformed fuel to produce electricity, water, and small amounts of carbon dioxide.

The water gets recycled to produce the steam needed to reform the fuel. The process also generates the heat required by the fuel cell.

As long as there's fuel, air, and heat, the process continues producing clean, reliable, affordable energy.

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