2021/06/22 更新

写真b

ナカゾノ タカシ
中薗 孝志
NAKAZONO Takashi
*大学が定期的に情報更新している項目(その他は、researchmapの登録情報を転載)
所属*
理学部 化学科
職名*
助教
学位
博士(理学) ( 九州大学 )
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研究キーワード
  • 錯体化学

  • 学内職務経歴*
    • 2017年4月 - 現在 
      理学部   化学科   助教
     

    研究分野

    • ナノテク・材料 / 無機・錯体化学

    経歴

    • 2017年4月 - 現在 
      立教大学   理学部 化学科   助教

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    学歴

    • 2012年4月 - 2017年3月 
      九州大学   化学研究科

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      国名: 日本国

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    • 2008年4月 - 2012年3月 
      九州大学   理学部   化学科

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      国名: 日本国

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    論文

    • Mechanisms of Water Oxidation using Ruthenium, Cobalt,Copper, and Iron Molecular Catalysts 招待有り 査読有り

      Alexander Rene Parent, Takashi Nakazono, Yuta Tsubonouchi, Natsuki Taira, Ken Sakai

      Advances in Inorganic Chemistry   2019年

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      記述言語:英語   掲載種別:研究論文(学術雑誌)  

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    • Highly Efficient and Selective Photocatalytic CO2 Reduction to CO in Water by a Cobalt Porphyrin Molecular Catalyst 査読有り

      Arnau Call, Mihaela Cibian, Keiya Yamamoto, Takashi Nakazono, Kosei Yamauchi, Ken Sakai

      ACS Catalysis   2019年

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      記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ACS  

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    • Highly stable chemisorption of dyes with pyridyl anchors over TiO2: application in dye-sensitized photoelectrochemical water reduction in aqueous media 査読有り

      Kohei Takijiri, Kohei Morita, Takashi Nakazono, Ken Sakai, Hironobu Ozawa

      CHEMICAL COMMUNICATIONS53 ( 21 ) 3042 - 3045   2017年3月

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      記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ROYAL SOC CHEMISTRY  

      A polypyridyl ruthenium sensitizer possessing pyridyl anchors (Ru-py) forms much stronger chemical linkages to TiO2 surfaces compared to the conventional carboxylate and phosphonate ones. A highly stable dye-sensitized photoelectrochemical cell for water reduction is successfully demonstrated using this technique.

      DOI: 10.1039/c6cc10321a

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    • Photochemical H2 Evolution Catalyzed by Porphyrin-based Cubic Cages Singly and Doubly Encapsulating PtCl2(4,4’-dimethyl-2,2’-bipyridine) 査読有り

      Shota Tanaka, Takashi Nakazono, Kosei Yamauchi, Ken Sakai

      Chem. Lett.   2017年

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      記述言語:英語   掲載種別:研究論文(学術雑誌)  

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    • Photochemical Water Oxidation Catalyzed by a Water-Soluble Copper Phthalocyanine Complex 査読有り

      Ryota Terao, Takashi Nakazono, Alexander Rene Parent, Ken Sakai

      CHEMPLUSCHEM81 ( 10 ) 1064 - 1067   2016年10月

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      記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:WILEY-V C H VERLAG GMBH  

      Copper tetrasulfonatophthalocyanine (CuPcTS) is reported to serve as a catalyst for photochemical water oxidation via a radical coupling mechanism. Chloride greatly inhibits the water oxidation rate as a result of axial chloride binding to CuPcTS, preventing formation of the Cu oxyl or hydroxyl intermediate required for O-O bond formation.

      DOI: 10.1002/cplu.201600263

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    • Improving the robustness of cobalt porphyrin water oxidation catalysts by chlorination of aryl groups 査読有り

      Takashi Nakazono, Ken Sakai

      DALTON TRANSACTIONS45 ( 32 ) 12649 - 12652   2016年8月

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      記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ROYAL SOC CHEMISTRY  

      The water oxidation (WO) activity of a chlorinated cobalt tetraphenylporphyrin (CoClPS), possessing Cl atoms on the 2,6-positions of the aryl groups, shows higher resistance to attack by singlet oxygen, in situ generated during photochemical WO using Ru(bpy)(3)(2+) and S2O82- with the turnover frequency (TOF) and turnover number (TON) reaching 1.7 s(-1) and 836, respectively.

      DOI: 10.1039/c6dt02535h

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    • Improving Singlet Oxygen Resistance during Photochemical Water Oxidation by Cobalt Porphyrin Catalysts 査読有り

      Takashi Nakazono, Alexander R. Parent, Ken Sakai

      CHEMISTRY-A EUROPEAN JOURNAL21 ( 18 ) 6723 - 6726   2015年4月

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      記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:WILEY-V C H VERLAG GMBH  

      Enabling the production of solar fuels on a global scale through artificial photosynthesis requires the development of water oxidation catalysts with significantly improved stability. The stability of photosystems is often reduced owing to attack by singlet oxygen, which is produced during light harvesting. Here, we report photochemical water oxidation by CoFPS, a fluorinated Co-porphyrin designed to resist attack by singlet oxygen. CoFPS exhibits significantly improved stability relative to its non-fluorinated analogue, as shown by a large increase in turnover numbers. This increased stability results from resistance of CoFPS to attack by singlet oxygen, the formation of which was monitored in situ by using 9,10-diphenylanthracene as a chemical probe. Dynamic light scattering (DLS) confirms that CoFPS remains homogeneous, proving its stability during water oxidation catalysis.

      DOI: 10.1002/chem.201500716

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    • Mechanism of water oxidation by non-heme iron catalysts when driven with sodium periodate 査読有り

      Alexander R. Parent, Takashi Nakazono, Shu Lin, Satoshi Utsunomiya, Ken Sakai

      DALTON TRANSACTIONS43 ( 33 ) 12501 - 12513   2014年9月

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      記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ROYAL SOC CHEMISTRY  

      Iron tris(2-methylpyridyl)amine (TPA) and iron 1-(bis(2-methylpyridyl)amino)-2-methyl-2-propanoate (BPyA) salts are characterized as water oxidation catalysts (WOCs) using sodium periodate. Under the conditions used, these complexes serve as homogeneous WOCs as demonstrated via kinetic analysis and dynamic light scattering (DLS). The Fe(BPyA) salt serves as both a mononuclear and dinuclear catalyst, with the mononuclear form showing higher catalytic activity. Based on the H/D kinetic isotope effect and pH dependence, the rate determining step (RDS) in water oxidation (WO) by Fe(BPyA) is nucleophilic attack by water during O-O bond formation. In contrast, Fe(TPA) shows complex kinetic behavior due to the formation of multiple oxidation states of the complex in solution, each of which exhibits catalytic activity for WO. The RDS in WO by Fe(TPA) follows an equilibrium established between monomeric and dimeric forms of the catalyst. Under acidic conditions formation of the monomer is favored, which leads to an increase in the WO rate.

      DOI: 10.1039/c4dt01188k

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    • Cobalt porphyrins as homogeneous catalysts for water oxidation 査読有り

      Takashi Nakazono, Alexander Rene Parent, Ken Sakai

      CHEMICAL COMMUNICATIONS49 ( 56 ) 6325 - 6327   2013年

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      記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ROYAL SOC CHEMISTRY  

      Three water-soluble cobalt porphyrins have been investigated as water oxidation catalysts via photo-initiation using Ru-II(bpy)(3)(2+)/Na2S2O8. The pH dependence of the turnover frequency revealed maximum activity at pH 11. Based on the second order dependence on catalyst concentration for the rate of water oxidation, we suggest a bimolecular radical coupling process as the rate determining step.

      DOI: 10.1039/c3cc43031f

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    ▼全件表示

    書籍等出版物

    • 人工光合成 ―システム構築に向けての最新技術動向と展望―「金属錯体触媒による新規な酸素発生反応」

      中薗孝志, 酒井 健( 担当: 分担執筆)

      シーエムシー出版  2013年 

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      記述言語:日本語 著書種別:学術書

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