Increasing amount of hydrogen adsorption by adhesive layer on the activated carbon surface

2011 Fiscal Year Final Research Report

• Project/Area Number: 22655068
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Single-year Grants
• Research Field: Inorganic industrial materials
• Research Institution: Nagaoka University of Technology
• Principal Investigator: SAITOH Hidetoshi 長岡技術科学大学, 工学部, 教授 (80250984)
• Co-Investigator(Kenkyū-buntansha): AKASAKA Hiroki 長岡技術科学大学, 工学部, 助教 (80500983) ; OHSHIO Shigeo 長岡技術科学大学, 工学部, 技術職員 (90160473)
• Project Period (FY): 2010 – 2011
• Keywords: 比表面積 / 水 / 水素吸蔵 / 活性炭 / 高圧水素

Research Abstract

Development of the activated carbon that has an ability of the absorption of hydrogen of> 6. 5 wt% is hurried to reserve hydrogen on the vehicles which moves with hydrogen fuel. Although the hydrogen absorption amount is reached to 2wt% using the metal alloy, the new materials which is more excellent than such metal alloy does not appear
We developed super-activated carbon with a surface area of> 2500 m^2/g. Although the hydrogen absorption ability is only 0. 6 wt% under 12 MPa at room temperature, it increased to 6. 5 wt% under 4 MPa at room temperature. In addition, the amount of hydrogen absorption increased with increasing the total volume of 1. 1 nm-micro pore. The relationship between the total volume of 1. 1 nm-micro pore and the amount of hydrogen absorption suggested that hydrogen condensed in the micro pore. That is, the amount of hydrogen absorption jump up with liquefaction. Furthermore, the activated carbon developed in this study indicated carbon dioxide absorption with an amount of 0. 7g/g under 1. 25 MPa at room temperature
The ability of hydrogen and carbon dioxide absorption of the activated carbon with surface water is lower than that of the activated carbon without surface water

Research Products

• [Journal Article] Effect of cooling rate of KOH activation process on activated carbons (2012)
  • Author(s): Hiroe Tanaka, Ikumi Toda, Hayato Maruyama, Hiroki Ono, Shigeo Ohshio, Hiroki Akasaka, Yoshihisa Tanaka, Syuji Himeno, Toshinori Kokubu, Hidetoshi Saitoh
  • Journal Title: Transactions of the Materials Research Society of Japan Volume: 37[ 1] Pages: 57-60
• [Journal Article] Hydrogen Storage Ability of Porous Carbon Material Fabricated from Coffee Bean Wastes (2011)
  • Author(s): Hiroki Aksaka, Tomokazu Takahata, Ikumi Toda, Hiroki Ono, Shigeo Ohshio, Syuji Himeno, Toshinori Kokubu, Hidetoshi Saitoh
  • Journal Title: International Journal of Hydrogen Energy Volume: 36 Pages: 580-586
• [Journal Article] Effect of Chemical Species in Alkali Agents on Pore Structure at Activated Carbon of Rice Husks (2011)
  • Author(s): Hiroki Ono, Hiroki Akasaka, Ikumi Toda, Hiroe Tanaka, Takuhiro Watanabe, Satoshi Ooki, Yoshihisa Tanaka, Fujio Takada, Shigeo Ohshio, Syuji Himeno, Toshinori Kokubu, Hidetoshi Saitoh
  • Journal Title: Transactions of the Materials Reserch Society of Japan Volume: 36[ 4] Pages: 593-597
• [Journal Article] Gas Activation on Carbon Material with Cell Geometry Using Microwave Heating
  • Author(s): Ikumi Toda, Tomokazu Takahata, Hiroki Ono, Shigeo Ohshio, Hiroki Akasaka, Syuji Himeno, Toshinori Kokubu, Hidetoshi Saitoh
  • Journal Title: Transactions of the Materials Research Society of Japan Volume: (in press)
• [Presentation] Hydrogen Storage Property of Activated Carbon Fabricated with Lignins (2012)
  • Author(s): Ikumi Toda, Hiroe Toda, Shigeo Ohshio, Hiroki Akasaka, Syuji Himeno, Manami Nakaishi, Hidetoshi Saitoh
  • Organizer: Abstract of 1^<st> International GIGAKU Conference in Nagaoka(IGCN)
  • Place of Presentation: Nagaoka University of Technology, Japan
  • Year and Date: 20120000
• [Presentation] Surface Change of Boron-Doped Amorphous Carbon Films (2012)
  • Author(s): Xiaolong Zhou, Ikumi Toda, Hiroki Akasaka, Shigeo Ohshio, Hidetoshi Saitoh
  • Organizer: Abstract of 1^<st> International GIGAKU Conference in Nagaoka(IGCN)
  • Place of Presentation: Nagaoka University of Technology
  • Year and Date: 20120000
• [Presentation] Effect of Flow Channel in Steam Activated Carbon Material from Coffee Bean Wastes on Specific Surface Area (2012)
  • Author(s): Hiroe Toda, Ikumi Toda, Hiroki Tanikawa, Tomokazu Takahata, Shigeo Ohshio, Hiroki Akasaka, Syuji Himeno, Satoshi Ooki, Yoshihisa Tanaka, Toshinori Kokubu, Hidetoshi Saitoh
  • Organizer: Abstract of 1^<st> International GIGAKU Conference in Nagaoka(IGCN)
  • Place of Presentation: Nagaoka University of Technology
  • Year and Date: 20120000
• [Presentation] Effect of Meso-pore Structure of Activated Carbons on Hydrogen Storage Ability (2011)
  • Author(s): Ikumi Toda, Hiroe Toda, Takuhiro Watanabe, Taka-aki Tsuchiya, Shigeo Ohshio, Hiroki Akasaka, Satoshi Ooki, Yoshihisa Tanaka, Syuji Himeno, Toshinori Kokubu, Hidetoshi Saitoh
  • Organizer: Abstract of 21^<th> Materials Reserch Society-Japan Academic Symposium, pp91(N-P22-G)
  • Place of Presentation: Yokohama Opening Plaza, Japan
  • Year and Date: 20110000
• [Presentation] Evaluation of Gases Adsorption on Activated Carbon Materials in Water (2011)
  • Author(s): Taka-aki Tuchiya, Takumi Yamada, Ikumi Toda, Takuhiro Watanabe, Hisashi Yoshioka, Hiroe Tanaka, Shigeo Ohshio, Hiroki Akasaka, Satoshi Ooki, Yoshihisa Tanaka, Fujio Takada, Syuji Himeno, Toshinori Kokubu, Hidetoshi Saitoh
  • Organizer: Abstract of 21^<th> Materials Reserch Society-Japan Academic Symposium, pp90(N-P19-M)
  • Place of Presentation: Yokohama Opening Plaza, Japan
  • Year and Date: 20110000
• [Remarks]
  • URL: http://hts.nagaokaut.ac.jp