Journal : Electronic Materials Letters 
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year : 2022 
authors : Soon Hyeong So, Sae Jin Sung, Seung Jae Yang, Chong Rae Park 
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pubdate : 2022-09-01 
region : International 
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Special Category : Review 
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Hydrogen is expected to overcome energy resource depletion because it is the most abundant element in the universe and because an ideal hydrogen energy cycle has the potential to exploit energy infinitely. Conventionally, hydrogen storage utilizes compression under high pressure (350-700 bar) into a tank and liquefaction in the cryotemperature regime (20 K). To mitigate the impractical operating conditions researchers have conducted adsorption-dependent research to increase the specific surface area (SSA) in physisorption and to decrease the H2 binding energy in chemisorption. Nevertheless, these strategies are still unlikely to reach the required the U.S. Department of Energy (DOE) targets. To this end, researchers have tried to find hydrogen storage material to fit the H2 binding energy between the physisorption region and chemisorption region. Previous governing parameters, the SSA, and the H2 binding energy show no correlation to gravimetric H2 storage capacity (GHSC). In addition, no correlation between the H2 densification index (HDI) and the H2 binding energy is found as well, which means the latter cannot describe the H2-adsorbent interaction thoroughly. The several notable findings presented here suggest that the development of high-performance H2 storage materials can be realized through the optimal modulation of an underlying parameter that dominates the H2-adsorbent interaction. This paper highlights the necessity of research on what the underlying parameter that dominates the H2-adsorbent interaction is and on how it affects GHSC to develop H2 storage materials that meet the DOE targets.

List of Articles
  • 2023

    11. What induces the dense storage of hydrogen of liquid- or solid-like density levels in carbon nanopores with sub-1 nm diameters?

    Soon Hyeong So†, Sungwoo Lee†, Jungho Mun†, Junsuk Rho*, Chong Rae Park*
    Carbon, .  January 31, 2023 

  • 2022

    10. Where to go for the development of high-performance H2 storage materials at ambient conditions?

    Soon Hyeong So, Sae Jin Sung, Seung Jae Yang, Chong Rae Park
    Electronic Materials Letters, .  September 1, 2022 

  • 2021

    9. A New Class of Carbon Nanostructures for High-Performance Electro-Magnetic and -Chemical Barriers

    Jae Hui Park†, Yun Ji Oh†, Dong Yoon Park†, Joonsik Lee, Jae Seo Park, Chong Rae Park, Jae Ho Kim, Taehoon Kim, Seung Jae Yang (†contributed equally)
    Advanced Science 2021, 8 (202102718), .  September 30, 2021 

  • 8. Bi-Functional Graphene Oxide Hole-Transporting and Barrier Layers for Transparent Bi-Facial Flexible Perovskite Solar Cells

    Min-Ah Park†, Sae Jin Sung†, You Jin Ahn, Inhwa Hong, Ik Jae Park, Chong Rae Park, Jin Young Kim (†contributed equally)
    ACS Applied Energy Materials, .  August 26, 2021 

  • 7. Enhanced electrical conductivity of polymer microspheres by altering assembly sequence of two different shaped conductive fillers

    Young Min Cho, Sang-Soo Lee, Chong Rae Park, Tae Ann Kim, Min Park
    Composites Part A: Applied Science and Manufacturing 2021, 149 (106562), 1-9.  August 24, 2021