Activity of methane oxidation by the cermet anode highly-dispersed with solid-solution alloy particles

• Project/Area Number: 20360327
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Material processing/treatments
• Research Institution: Nagaoka University of Technology
• Principal Investigator: SATO Kazunori Nagaoka University of Technology, 工学部, 教授 (20143828)
• Co-Investigator(Kenkyū-buntansha): TEOH Wahtzu 長岡技術科学大学, 工学部, 助教 (10452088)
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥19,500,000 (Direct Cost: ¥15,000,000、Indirect Cost: ¥4,500,000); Fiscal Year 2010: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2009: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2008: ¥11,180,000 (Direct Cost: ¥8,600,000、Indirect Cost: ¥2,580,000)
• Keywords: 電極触媒 / 固体酸化物燃料電池 / メタン / 環境技術 / 環境材料 / 材料・加工処理 / 燃料電池 / 構造・機能材料 / 材料加工・処理

Research Abstract

Substitution of Co atoms for Ni atoms in the Ni-based cermet anode resulted in a decrease in the anodic overvoltage and interfacial resistance between the anode and electrolyte. This effect has been confirmed for a samaria-doped ceria (SDC) electrolyte and a scandia-stabilized zirconia (ScSZ) electrolyte. The results of electrochemical measurements revealed that the enhancement of the direct oxidation of methane was caused by the modification of microstructure in the cermet anode. Based on the experimental results a model for the anodic oxidation mechanism at the interface between the anode and electrolyte is proposed. The adsorptive abilities of Ni_<1-x>Co_x-YSZ and Ni_<1-x>Co_x-CeO_2 cermet particles for CH_4 and CO were affected by the amount of the Co atoms substituted for the Ni atoms.

Research Products

• [Journal Article] Adsorptive properties of the Ni_1-xCox-based cermet anode for the oxidation of methane (2011)
  • Author(s): T.Sawahata, H.Takayanagi, T.WahTzu, K.Sato
  • Journal Title: ECS Trans. 35 Pages: 1545-1550
• [Journal Article] Structure and Electrical Conductivity of Ba_0.5Sr_0.5Co_0.8Fe_0.2O_<3-δ> Perovskite Oxide Doped with Ca and La in A-site (2011)
  • Author(s): S.Deehasing, K.Sato, O.Saguanruang, S.Chaianansutcharit
  • Journal Title: J.Jpn.Appl.Phys. 50
• [Journal Article] Structure and Electrical Conductivity of Ba_<0.5>Sr_<0.5>Co_<0.8>Fe_<0.2>O_<3-δ> Perovskite Oxide Doped with Ca and La in A-site (2011)
  • Author(s): S.Deehasing, K.Sato, O.Saguanruang, S.Chaianansutcharit
  • Journal Title: J.Jpn.Appt Phys. Volume: 50
  • Peer Reviewed
• [Journal Article] 講座メタンの高度利用技術:燃料電池メタン利用技術の観点から (2011)
  • Author(s): 佐藤一則
  • Journal Title: プラズマ・核融合学会誌 Volume: 87 Pages: 13-16
• [Journal Article] Adsorptive Properties of the Ni_<1-x>Co_x-based Cermet Anode for the Oxidation of Methane (2011)
  • Author(s): T.Sawahata, H.Takayanagi, T.WahTzu, K.Sato
  • Journal Title: ECS Trans. Volume: 35 Pages: 1545-1550
• [Journal Article] Methane Oxidation at the Ni_<1-x>Cox-Samaria-doped Ceria Cermet Anode (2009)
  • Author(s): Hiromasa Tsuchiya, ほか
  • Journal Title: ECS Trans. 25(2) Pages: 2169-2172
  • Peer Reviewed
• [Journal Article] Electrocatalytic Activity of an SOFC Anode Consisting of Nickel, Cerium Oxide, and Titanium Oxide for the Oxidation of Methane (2009)
  • Author(s): Tanawat Kanjanaboonmalert
  • Journal Title: ECS Trans. 16 Pages: 24-27
  • Peer Reviewed
• [Presentation] Adsorptive Properties of the Ni_<1-x>Cox-based Cermet Anode for the Oxidation of Methane (2011)
  • Author(s): K.Sato
  • Organizer: The Twelfth International Symposium on Solid Oxide Fuel Cell Cells (SOFC-XII)
  • Place of Presentation: Montreal(Canaaa)
  • Year and Date: 2011-05-05
• [Presentation] Specific Surface Structures of Transition Metal Oxides and Alloys for the Oxidation Activity of Hydrogen and Methane (2010)
  • Author(s): K.Sato
  • Organizer: 20^<th> Academic Symposium of MRS-Japan
  • Place of Presentation: Yokohama, Japan.
  • Year and Date: 2010-12-20
• [Presentation] Specific Surface Structures of Transition Metal Oxides and Alloys for the Oxidation Activity of Hydrogen and Methane (2010)
  • Author(s): K.Sato
  • Organizer: 20^<th> Academic Symposium of MRS-Japan 2010
  • Place of Presentation: 横浜
  • Year and Date: 2010-12-20
• [Presentation] チタン添加セリアによるニッケル金属粒子の微細分散とメタン酸化活性 (2010)
  • Author(s): 佐藤一則, ほか
  • Organizer: 日本金属学会2010年春期大会
  • Place of Presentation: つくば大学
  • Year and Date: 2010-03-28
• [Presentation] The Oxidation of Methane over a Ni-Ceria Based Anode for IT-SOFC (2010)
  • Author(s): T.Kanjanaboonmalert, ほか
  • Organizer: International Symposium on Global Multidisciplinary Engineering 2010
  • Place of Presentation: Nagaoka(日本)
  • Year and Date: 2010-03-13
• [Presentation] Structure and Electrical Conductivity of BSCF Perovskite Oxide Doped with Ca and La in A-site (2010)
  • Author(s): M.Deehasing, ほか
  • Organizer: International Symposium on Global Multidisciplinary Engineering 2010
  • Place of Presentation: Nagaoka(日本)
  • Year and Date: 2010-03-13
• [Presentation] イオン交換処理による複合遷移金属酸化物の微細組織変化と反応活性向上 (2009)
  • Author(s): 佐藤一則, ほか
  • Organizer: 日本金属学会2009年秋期大会・公募テーマシンポジウムS7ナノ構造制御による新しい光触媒・触媒材料の開発
  • Place of Presentation: 京都大学
  • Year and Date: 2009-09-16
• [Presentation] Electrocatalytic Activity of an SOFC Anode Consisting of Nickel, Cerium Oxide, and Titanium Oxide for the Oxidation of Methane (2008)
  • Author(s): Tanawat Kanjanaboonmalert
  • Organizer: Pacific Rim Meeting on Electrochemical and Solid-state Science (PRiME 2008)
  • Place of Presentation: Honolulu, Hawii (USA)
  • Year and Date: 2008-10-13
• [Presentation] ニッケルコバルト基サーメット粒子のメタン吸着に及ぼす合金組成の影響 (2008)
  • Author(s): 高柳紘貴
  • Organizer: 日本金属学会2008年秋期大会
  • Place of Presentation: 熊本大学
  • Year and Date: 2008-09-23
• [Presentation] メタンに対するニッケル基サーメット燃料極性能の経時変化 (2008)
  • Author(s): 油井基彰
  • Organizer: 日本金属学会2008年秋期大会
  • Place of Presentation: 熊本大学
  • Year and Date: 2008-09-23
• [Remarks] ホームページ等
  • URL: http://msfe.nagaokaut.ac.jp/