Lewis Acid-Assisted Formic Acid Dehydrogenation Using a Pincer-Supported Iron Catalyst

Bielinski, Elizabeth A.; Lagaditis, Paraskevi O.; Zhang, Yuanyuan; Mercado, Brandon Q.; Würtele, Christian; Bernskoetter, Wesley H.; Hazari, Nilay; Schneider, Sven

doi:10.1021/ja505241x

Cited by 387 publications

(381 citation statements)

References 45 publications

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“…2019, 9, 1801275 Scheme 3. Highly active catalysts that gave TOF of about 200 000 h −1 by Pidko and co-workers [46] and Hazari and co-workers [47] have been developed in the FADH research as well, but, still, organic solvents and Lewis acids were required. Reproduced with permission.…”

Section: Summary Of Homogeneous Catalystmentioning

confidence: 99%

Development of Effective Catalysts for Hydrogen Storage Technology Using Formic Acid

Onishi

Iguchi

Yang

et al. 2018

Advanced Energy Materials

113

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We are engaged in research and development to reduce CO 2 emissions. Longterm increase of CO 2 concentration in the atmosphere has a great influence on climate change. [1] Therefore, developing technologies aiming to reduce CO 2 emissions and to overcome the present society depending on fossil fuels as primary energy. Additionally, transition of fossil fuels into renewable energies is also important for realizing future sustainable society. [2] The most suitable material for this goal is considered to be hydrogen, because its combustion emits only water as a byproduct. In addition, hydrogen possesses almost three times as much energy as natural gases, and can supply electric power very efficiently for fuel cells without releasing greenhouse gases and air pollutants. [3] However, hydrogen also has serious drawbacks for practical applications. Most serious problem is that, hydrogen forms as a gas at ambient conditions with very low density (0.0899 kg m −3 at 0 °C, 0.10 MPa) over ten times lower than air (1.293 kg m −3 at 0 °C, 0.10 MPa). As a result, it becomes difficult to store and transport hydrogen safely. Developing safe and efficient hydrogen storage materials is one of the most difficult challenges for the transformation from the fossil fuel-based economy to hydrogen-based one as a long-term solution for a safe energy future.Hydrogen has attracted considerable attention as an energy source, and various attempts to develop suitable methods for hydrogen generation are made at the National Institute of Advanced Industrial Science and Technology. In this paper, the authors introduce their recent strategies to store hydrogen using formic acid (FA) as a hydrogen carrier. FA, which is believed to be one of the most promising liquid organic hydrogen carriers, can provide a viable method for safe hydrogen transportation. In order to optimize the performance of hydrogen storage with FA, the authors have investigated both homogeneous and heterogeneous catalysts. For example, Ir catalysts anchoring N^N-bidentate ligands show high catalytic activity for both the reactions of FA synthesis and hydrogen generation from FA. Ultrafine Pd-based nanoparticles are also immobilized on various supports, which show excellent catalytic performance for FA dehydrogenation under mild conditions. The authors also develop both homogeneous and heterogeneous catalysts to generate high-pressure gases (H 2 and CO 2 ) over 120 and 35 MPa, respectively,

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Section: Summary Of Homogeneous Catalystmentioning

confidence: 99%

Development of Effective Catalysts for Hydrogen Storage Technology Using Formic Acid

Onishi

Iguchi

Yang

et al. 2018

Advanced Energy Materials

113

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“…

To develop highly efficient catalysts for dehydrogenation of formic acid in water,w ei nvestigated several Cp*Ir catalysts with various amide ligands. [2] Since it is knownt hat formic acid (FA) can be ah ydrogen carrier, [3] chemists have engaged in the developmento fc atalysts for CO 2 hydrogenation [4][5][6] /FAd ehydrogenation [5][6][7][8][9] for the storage and releaseo fH 2 .H owever,p roblemsr emain in these reactions owing to the fact that FA dehydrogenation requires harsh reaction conditions and often generates CO as ab yproduct. Ac onstant rate (TOF > 35 000 h À1 ) was maintained for six hours, and aT ON of 1000 000 was achieved at 50 8C.

Hydrogen (H 2 )g as hasr eceived considerable attention in the context of next-generation clean energy.

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mentioning

confidence: 99%

Picolinamide‐Based Iridium Catalysts for Dehydrogenation of Formic Acid in Water: Effect of Amide N Substituent on Activity and Stability

Kanega

Onishi

Wang

et al. 2018

Chemistry A European J

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Section: Heterogeneous Nanocatalysts and Catalysismentioning

confidence: 99%

CO₂‐Mediated H₂ Storage‐Release with Nanostructured Catalysts: Recent Progresses, Challenges, and Perspectives

Asefa

Koh

Yoon

2019

Advanced Energy Materials

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It has increasingly become clear that economic growth worldwide based on fossil fuel energy supply cannot be sustained; thus, alternative, renewable energy sources and carriers must be urgently developed to maintain growth. Dihydrogen (H2), which can produce energy without generating environmental pollutants, can play a major role in this endeavor. However, to use H2 in renewable energy systems, systems and materials that can store and transport it, or convert it into easier‐to‐handle/transport synthetic fuels, need to be developed. In this article, first, many of the issues related to both homogeneous and heterogeneous catalysts that are being developed to help H2's use as energy carrier are discussed. More focus is then given to heterogeneous nanocatalysts that are developed for reversible CO2‐mediated hydrogenation and dehydrogenation reactions involving chemical hydrogen carriers and delivery systems, mainly formic acid/CO2 and formate/bicarbonate. The challenges associated with the development of nanocatalysts based on earth‐abundant elements for dehydrogenation and hydrogenation reactions of these compounds for H2 storage and release are emphasized in the discussions. Finally, the pressing research questions and major issues that need to be addressed in the near future to help the realization of the “hydrogen economy” are outlined.

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Lewis Acid-Assisted Formic Acid Dehydrogenation Using a Pincer-Supported Iron Catalyst

Cited by 387 publications

References 45 publications

Development of Effective Catalysts for Hydrogen Storage Technology Using Formic Acid

Development of Effective Catalysts for Hydrogen Storage Technology Using Formic Acid

Picolinamide‐Based Iridium Catalysts for Dehydrogenation of Formic Acid in Water: Effect of Amide N Substituent on Activity and Stability

CO₂‐Mediated H₂ Storage‐Release with Nanostructured Catalysts: Recent Progresses, Challenges, and Perspectives

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Lewis Acid-Assisted Formic Acid Dehydrogenation Using a Pincer-Supported Iron Catalyst

Cited by 387 publications

References 45 publications

Development of Effective Catalysts for Hydrogen Storage Technology Using Formic Acid

Development of Effective Catalysts for Hydrogen Storage Technology Using Formic Acid

Picolinamide‐Based Iridium Catalysts for Dehydrogenation of Formic Acid in Water: Effect of Amide N Substituent on Activity and Stability

CO2‐Mediated H2 Storage‐Release with Nanostructured Catalysts: Recent Progresses, Challenges, and Perspectives

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CO₂‐Mediated H₂ Storage‐Release with Nanostructured Catalysts: Recent Progresses, Challenges, and Perspectives