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Nanocatalysts for hydrogen generation from hydrazine

机译：从氢嗪生成氢的纳米催化剂

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摘要

Hydrogen is an key future fuel of interest because it is considered as an efficient energy carrier, like electricity, releasing only water when combining with oxygen (e.g. in a fuel cell) and therefore has no negative impact on the environment. Unfortunately we are not yet able to clear the economical and engineering hurdles to store hydrogen safely and efficiently. To overcome this, onboard hydrogen generation by hydrogen storage materials comes out to be an attractive and effective approach. Therefore, the concept of onboard hydrogen generation and use based on our requirements are gaining interest, reflected by a huge number of hydrogen storage materials with high hydrogen contents. Among them, hydrous hydrazine, which is a liquid and has a hydrogen content for hydrogen release as high as 8.0 wt%, proves to be a strong candidate for onboard hydrogen generation at ambient conditions. Nanoparticle catalysts (nanocatalysts) play a significant role to control the selective generation of hydrogen from catalytic decomposition of hydrous hydrazine. Nanocatalysts based on monometallic or two-component alloy catalysts involving noble (Ru, Rh, Ft, Pd, Ir) and non-noble metals (Fe, Co, Ni, Cu) and various non-metals have been extensively studied. Screening of a vast range of nanocatalysts thus provides a library of active and selective catalysts. The structure and activity of nanocatalysts are discussed focusing on the structure-activity relationship for selective hydrogen generation from hydrous hydrazine.
机译：氢是关键的未来感兴趣的燃料，因为它被认为是有效的能量载体，例如电力，在与氧气结合时仅释放水（例如在燃料电池中），因此对环境没有负面影响。不幸的是，我们还无法清除经济和工程障碍，无法安全有效地存储氢。为了克服这一点，氢存储材料的载氢生成是一种有吸引力有效的方法。因此，基于我们的要求，机载氢生成和使用的概念引起了人们的兴趣，这反映了大量具有高氢含量的氢储存材料。其中，液态氢嗪是一种液体，其氢含量可用于氢释放高达8.0 wt％，在环境条件下是强大的载体氢生成候选者。纳米颗粒催化剂（纳米催化剂）在控制液压氢氮催化分解的选择性生成中起着重要作用。基于涉及贵族（RU，RH，FT，PD，IR）和非差异金属（Fe，Co，Ni，Cu）的纳米催化剂，以及涉及Noble（RU，RH，FT，PD，IR）和各种非金属的纳米催化剂。因此，筛选大量纳米催化剂提供了活性和选择性催化剂的库。讨论了纳米催化剂的结构和活性，重点关注从液压氢氮中选择性氢产生的结构活性关系。

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