Temperature-Induced Enhancement of Catalytic Performance in Selective Hydrogen Generation from Hydrous Hydrazine with Ni-Based Nanocatalysts for Chemical Hydrogen Storage

2011 ◽  
Vol 2011 (14) ◽  
pp. 2232-2237 ◽  
Author(s):  
Sanjay Kumar Singh ◽  
Zhang-Hui Lu ◽  
Qiang Xu
Keyword(s):  
Hydrogen Storage ◽  
Hydrogen Generation ◽  
Catalytic Performance ◽  
Chemical Hydrogen Storage

scholarly journals Copper Nanowires as Highly Efficient and Recyclable Catalyst for Rapid Hydrogen Generation from Hydrolysis of Sodium Borohydride

Nanomaterials ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1153 ◽  
Author(s):  
Aina Shasha Hashimi ◽  
Muhammad Amirul Nazhif Mohd Nohan ◽  
Siew Xian Chin ◽  
Poi Sim Khiew ◽  
Sarani Zakaria ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Sodium Borohydride ◽  
Fossil Fuels ◽  
Hydrogen Generation ◽  
Clean Energy ◽  
Catalytic Performance ◽  
Copper Nanowires ◽  
H2 Generation ◽  
Hydrolysis Of ◽  
Hydrolysis Of Nabh4

Hydrogen (H2) is a clean energy carrier which can help to solve environmental issues with the depletion of fossil fuels. Sodium borohydride (NaBH4) is a promising candidate material for solid state hydrogen storage due to its huge hydrogen storage capacity and nontoxicity. However, the hydrolysis of NaBH4 usually requires expensive noble metal catalysts for a high H2 generation rate (HGR). Here, we synthesized high-aspect ratio copper nanowires (CuNWs) using a hydrothermal method and used them as the catalyst for the hydrolysis of NaBH4 to produce H2. The catalytic H2 generation demonstrated that 0.1 ng of CuNWs could achieve the highest volume of H2 gas in 240 min. The as-prepared CuNWs exhibited remarkable catalytic performance: the HGR of this study (2.7 × 1010 mL min−1 g−1) is ~3.27 × 107 times higher than a previous study on a Cu-based catalyst. Furthermore, a low activation energy (Ea) of 42.48 kJ mol−1 was calculated. Next, the retreated CuNWs showed an outstanding and stable performance for five consecutive cycles. Moreover, consistent catalytic activity was observed when the same CuNWs strip was used for four consecutive weeks. Based on the results obtained, we have shown that CuNWs can be a plausible candidate for the replacement of a costly catalyst for H2 generation.

Ultra-highly active Ir-Ru-B/CeO2 catalyst for hydrogen generation from hydrazine monohydrate

2021 ◽  
Author(s):  
Yu-Ping Qiu ◽  
Weizhen Wang ◽  
Mu-Hua Chen ◽  
Qing Shi ◽  
Zhiqing Yang ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Hydrogen Generation ◽  
Catalytic Decomposition ◽  
Hydrazine Monohydrate ◽  
On Demand ◽  
Storage Technology ◽  
Highly Active ◽  
Chemical Hydrogen Storage

On-demand hydrogen generation from catalytic decomposition of hydrazine monohydrate (N2H4·H2O) represents a promising chemical hydrogen storage technology for onboard and portable applications. But the performances of existing catalysts are still...

scholarly journals Nanocatalysts for Hydrogen Generation from Ammonia Borane and Hydrazine Borane

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Zhang-Hui Lu ◽  
Qilu Yao ◽  
Zhujun Zhang ◽  
Yuwen Yang ◽  
Xiangshu Chen
Keyword(s):  
Hydrogen Storage ◽  
Hydrogen Content ◽  
Hydrogen Generation ◽  
Ammonia Borane ◽  
High Potential ◽  
Catalytic Dehydrogenation ◽  
Hydrogen Storage Materials ◽  
Methanolic Solution ◽  
Storage Materials ◽  
Chemical Hydrogen Storage

Ammonia borane (denoted as AB, NH3BH3) and hydrazine borane (denoted as HB, N2H4BH3), having hydrogen content as high as 19.6 wt% and 15.4 wt%, respectively, have been considered as promising hydrogen storage materials. Particularly, the AB and HB hydrolytic dehydrogenation system can ideally release 7.8 wt% and 12.2 wt% hydrogen of the starting materials, respectively, showing their high potential for chemical hydrogen storage. A variety of nanocatalysts have been prepared for catalytic dehydrogenation from aqueous or methanolic solution of AB and HB. In this review, we survey the research progresses in nanocatalysts for hydrogen generation from the hydrolysis or methanolysis of NH3BH3and N2H4BH3.

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