scholarly journals Recent Progress in Homogeneous Catalytic Dehydrogenation of Formic Acid

Molecules ◽  
2022 ◽  
Vol 27 (2) ◽  
pp. 455
Author(s):  
Naoya Onishi ◽  
Ryoichi Kanega ◽  
Hajime Kawanami ◽  
Yuichiro Himeda

Recently, there has been a strong demand for technologies that use hydrogen as an energy carrier, instead of fossil fuels. Hence, new and effective hydrogen storage technologies are attracting increasing attention. Formic acid (FA) is considered an effective liquid chemical for hydrogen storage because it is easier to handle than solid or gaseous materials. This review presents recent advances in research into the development of homogeneous catalysts, primarily focusing on hydrogen generation by FA dehydrogenation. Notably, this review will aid in the development of useful catalysts, thereby accelerating the transition to a hydrogen-based society.

Author(s):  
Kuo-Wei Huang ◽  
Sudipta Chatterjee ◽  
Indranil Dutta ◽  
Yanwei Lum ◽  
Zhiping Lai

Formic acid has been proposed as a hydrogen energy carrier because of its many desirable properties, such as low toxicity and flammability, and a high volumetric hydrogen storage capacity of...


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 ◽  
...  

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.


Author(s):  
Giovanni Cerri ◽  
Claudio Corgnale ◽  
Coriolano Salvini

Many significant features lead to consider hydrogen as an interesting energy carrier. Hydrogen can be burned with pure oxygen thus the production of CO2 and NOx is avoided. Since molecular hydrogen does not exist on the earth it has to be produced from fossil fuels or from renewable energy sources. Energy from fossil fuels can be transferred into hydrogen and released elsewhere. So relevant reduction of emission of pollutant can be achieved in critical zones at the centres of large cities. Nevertheless the losses occurring during production, distribution and storage of hydrogen lead to an increased consumption of the primary energy source (fossil fuels) and to increased emission levels (CO2 and others). Hydrogen can be obtained from renewable sources such as the solar energy and used in situ for power generation. In this case hydrogen can act as an energy carrier which allows a local energy storage. In such a way the time dependent availability of the solar energy and the production level of the power plant can be decoupled. In a distributed generation context a small size solar power plant equipped with a hydrogen storage system has been studied. Different storage options have been investigated and compared. Finally a liquid hydrogen storage system is proposed. The peculiarities of the selected system allow a reduction of losses, size of machinery and energy requirements. The paper presents an analysis of the more relevant issues related to the different hydrogen storage options suitable for the present application. After the characterization of the solar field in terms of energy availability and the specifications of both the hydrogen production system and the power generation unit, the design of a liquid hydrogen storage system is presented and widely discussed. This method is particularly useful in the plants management (for example nuclear or coal plants), where it’s impossible or very difficult to modify power level, as well. So, such a static system would be useful in order to allow power modulation by H2 plant. In order to do this, a research for individuating high volumic (and mass) specific capacity systems should be driven.


2018 ◽  
Vol 373 ◽  
pp. 317-332 ◽  
Author(s):  
Naoya Onishi ◽  
Gábor Laurenczy ◽  
Matthias Beller ◽  
Yuichiro Himeda

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Zhang-Hui Lu ◽  
Qilu Yao ◽  
Zhujun Zhang ◽  
Yuwen Yang ◽  
Xiangshu Chen

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.


2005 ◽  
Vol 895 ◽  
Author(s):  
Anne C. Dillon ◽  
Brent P. Nelson ◽  
Yufeng Zhao ◽  
Yong-Hyun Kim ◽  
C. Edwin Tracy ◽  
...  

AbstractThe majority of the world energy consumption is derived from fossil fuels. Furthermore, the United States (US) consumption of petroleum vastly exceeds its production, with the majority of petroleum being consumed in the transportation sector. The increasing dependency on foreign fuel resources in conjunction with the severe environmental impacts of a petroleum-based society dictates that alternative renewable energy resources be developed. The US Department of Energy's (DOE's) Office of Energy Efficiency and Renewable Energy and the Office of Basic Energy Sciences are currently promoting a vehicular hydrogen-based energy economy. However, none of the current on-board storage technologies are suitable for practical and safe deployment. Significant scientific advancement is therefore still required if a viable on-board storage technology is to be developed. A detailed discussion of the benefits of transitioning to a hydrogen-powered automotive fleet as well as the tremendous technical hurdles faced for the development of an on-board hydrogen storage system are provided here. A novel class of theoretically predicted nanostructured materials that could revolutionize hydrogen storage materials is also presented.


2016 ◽  
Vol 2 (1) ◽  
Author(s):  
Jackson D. Scholten ◽  
Muhammad I. Qadir ◽  
Virgínia S. Souza

AbstractIn this mini-review, selected contributions on the development of hydrogen storage systems based on small molecules using nanocatalysts for hydrogen generation will be described. The discussion is centered on the most applied compounds such as formic acid, metal hydrides, amine-boranes, alcohols, hydrocarbons, hydrazine and water. In addition, an overview of the most important aspects relating to the application of the metal nanoparticles in each reaction is also considered.


2014 ◽  
Vol 28 (10) ◽  
pp. 6540-6544 ◽  
Author(s):  
Irma Schmidt ◽  
Karsten Müller ◽  
Wolfgang Arlt

Author(s):  
Lutz Giese ◽  
Jörg Reiff-Stephan

Science, technology and politics agree: hydrogen will be the energy carrier of the future. It will replace fossil fuels based on a sufficient supply from sustainable energy. Since the possibilities of storing and transporting hydrogen play a decisive role here, the so-called LOHC (Liquid Organic Hydrogen Carriers) can be used as carrier materials. LOHC carrier materials can reversibly absorb hydrogen, store it without loss and release it again when needed. Since little or no pressure is required, normal containers or tanks can be used. The volume or mass-related energy densities can reach around a quarter of liquid fossil fuels. This paper is to give an introduction to the field of hydrogen storage and usage of those LOHC, in particular. The developments of the last ten years have been related to the storage and transport of hydrogen with LOHC. These are crucial to meet the future demand for energy carriers e.g. for mobile applications. For this purpose, all transport systems are under consideration as well as the decentralized supply of rural areas with low technological penetration, e.g. regions of Western Africa which are often characterized by a lack of energy supply. Hydrogen bound in LOHC can provide a hazard-free alternative for distribution. The paper provides an overview of the conversion forms as well as the chemical carrier materials. Dibenzyltoluene as well as N-ethylcarbazole - as examples for LOHC - are discussed as well as chemical hydrogen storage materials like ammonia boranes as alternatives to LOHC.


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