J-GLOBAL         Last updated: Jun 25, 2018 at 19:57
Kumamoto University

Published Papers

Xingke Cai, Nobuyuki Sakai, Tadashi C. Ozawa, Asami Funatsu, Renzhi Ma, Yasuo Ebina, Takayoshi Sasaki
ACS Applied Materials and Interfaces   7(21) 11436-11443   Jun 2015
© 2015 American Chemical Society. Tuning of the electrical properties of graphene via photoexcitation of a heteroassembled material has started to attract attention for electronic and optoelectronic applications. Actually photoinduced carrier dopi...
Xingke Cai, Tadashi C. Ozawa, Asami Funatsu, Renzhi Ma, Yasuo Ebina, Takayoshi Sasaki
Journal of the American Chemical Society   137(8) 2844-2847   Mar 2015
© 2015 American Chemical Society. The surface charge of various anionic unilamellar nanosheets, such as graphene oxide (GO), Ti<inf>0.87</inf>O<inf>2</inf>0.52-, and Ca<inf>2</inf>Nb<inf>3</inf>O<inf>10</inf>- nanosheets, has...
Takaaki Taniguchi, Tomoaki Murakami, Asami Funatsu, Kazuto Hatakeyama, Michio Koinuma, Yasumichi Matsumoto
Inorganic Chemistry   53(17) 9151-9155   Sep 2014
Tuning upconversion (UPC) luminescence using external stimuli and fields, as well as chemical reactions, is expected to lead to novel and efficient optical sensors. Herein, highly tunable UPC luminescence was achieved through a host-guest chemistr...
A. Funatsu, H. Tateishi, K. Hatakeyama, Y. Fukunaga, T. Taniguchi, M. Koinuma, H. Matsuura, Y. Matsumoto
Chemical Communications   50(62) 8503-8506   Aug 2014
Platinum (Pt) nanosheets were developed by exfoliating layered platinum oxide. Moreover, we succeeded in synthesizing monolayer Pt nanosheets for the first time by adjusting the conditions for reduction. Monolayer Pt nanosheets were highly active ...
Kazuto Hatakeyama, Mohammad Razaul Karim, Chikako Ogata, Hikaru Tateishi, Asami Funatsu, Takaaki Taniguchi, Michio Koinuma, Shinya Hayami, Yasumichi Matsumoto
Angewandte Chemie - International Edition   53(27) 6997-7000   Jul 2014
Proton conductivities of layered solid electrolytes can be improved by minimizing strain along the conduction path. It is shown that the conductivities (σ) of multilayer graphene oxide (GO) films (assembled by the drop-cast method) are larger than...

Conference Activities & Talks

Synthesis of platinum oxide nanosheets using layered materials
Materials Science-2017   26 Sep 2017   
Reduction of Graphene Oxide using the Photocatalytic Activity of Ti- and Nb-Oxide Nanosheets
11 Mar 2015   
2. Synthesis of titanium oxide nanosheets using a soft, solution process
International Union of Materials Research Societies   24 Aug 2014   

Association Memberships


Research Grants & Projects

Creation of Innovative Catalysts based on Metal Nanosheets
Project Year: Mar 2016 - Mar 2019    Investigator(s): FUNATSU Asami