美国大学申请文书：燃料电池

美国大学申请文书：燃料电池

这篇文章指出，燃料电池有可能改变产生能量的方式，使其更环保、更有效。文章认为，燃料电池通过将化学性质的能量直接转化为热能和电的形式，从而产生不希望产生的副产品。虽然燃料电池提供了相当大的利益，但仍有必要进一步研究和研究它，以使这些装置在质量和广泛使用方面发挥作用(Ludlow et al.， 2006)。本文认为，低温质子交换膜(PEM)燃料电池是最常见的燃料电池类型之一。

美国大学申请文书：燃料电池
然而，这种燃料电池的主要问题是水的管理。正如燃料电池的名字所暗示的，PEMFC依赖于将质子作为电解液的膜分离。目前通常使用的膜是全氟磺酸基聚合物(PFSA)，它由类似于特氟隆的主干和侧链组成，与磺酸(HSO3)的位置(Ludlow et al.， 2006)相似。在膜的水化作用下，通过不同的水分子数量和水合硫酸的位置来确定氢离子。

美国大学申请文书：燃料电池

It is suggested by the article that the fuel cells consist of the potential to change the manner in which the energy is generated to the more environment friendly and efficient manner. The article argues that the fuel cells present the by-products generation that is not desired through converting the energy of chemical nature directly to the thermal and electrical form of energies. It is essential to consider that although considerable benefit is offered by the fuel cells, there lies a need to further research and work upon it for bringing the devices in the mass and widespread utilization (Ludlow et al., 2006). As asserted by the article, low temperature proton exchange membrane (PEM) fuel cell is one of the most common fuel cells type.

美国大学申请文书：燃料电池
However, the prevailing issues within this fuel cell type is the management of water. As implied by the name of the fuel cells, PEMFC relies on separation of the membrane conducting the proton as an electrolyte. The membrane that is usually used presently is the perfluorosulfonic acid based polymer (PFSA) consisting of the backbone and side chains similar to Teflon eliminating with the sites of sulfonic acid (HSO3) (Ludlow et al., 2006). Upon the hydration of the membrane, the hydrogen ions are identified to be solved with the different water molecule amounts and hydrate the sulfonic acid sites.