A Review of Unique Aluminum–Water Based Hydrogen Production Options,Energy & Fuels

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A Review of Unique Aluminum–Water Based Hydrogen Production Options
Energy & Fuels ( IF 5.2 ) Pub Date : 2021-01-07 , DOI: 10.1021/acs.energyfuels.0c03674
Andre Bolt ₁ , Ibrahim Dincer ₁ , Martin Agelin-Chaab ₁

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This comprehensive review paper compares the different methods developed experimentally to produce hydrogen by reacting aluminum and water. The alumina oxide layer which forms on the exterior surface of aluminum inhibits the reaction from taking place. Therefore, this paper presents a variety of techniques used to eliminate the oxide layer so that the reaction can continuously take place. The review paper aims to evaluate these techniques by comparing the hydrogen yield and maximum hydrogen production rate. On the basis of the analyses conducted, it was identified that the addition of hydroxide promoters, such as NaOH and KOH, is highly beneficial. This was also evident in the various studies where yields greater than 99% are achieved. Additionally, it is determined that the addition of NaCl or KCl to ball-milled samples of aluminum can be extremely advantageous when examining the maximum hydrogen production rate. For instance, an experimental sample composed of 2% NaCl was able to achieve a maximum hydrogen production rate of 1140 mL/min. Furthermore, numerous other studies are discussed by considering their specific advantages and disadvantages.

中文翻译：

独特的铝-水基氢气生产方案回顾

这份全面的综述文章比较了实验开发的通过铝和水反应产生氢的不同方法。在铝的外表面上形成的氧化铝层抑制了反应的发生。因此，本文提出了多种用于消除氧化物层的技术，以使反应可以连续进行。该综述旨在通过比较制氢量和最大制氢量来评估这些技术。根据进行的分析，发现添加氢氧化物促进剂，例如NaOH和KOH，是非常有益的。这在各种研究中也很明显，其中获得了超过99％的产率。另外，已确定在检查最大氢气产生速率时，向球磨的铝样品中添加NaCl或KCl可能非常有利。例如，由2％NaCl组成的实验样品能够达到1140 mL / min的最大氢气产生速率。此外，讨论了许多其他研究，并考虑了它们的特定优点和缺点。

更新日期：2021-01-21

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