Article
Chemistry, Physical
Weiying Zhang, Xiang Mei, Lewang Yuan, Gang Wang, Yuexiang Li, Shaoqin Peng
Summary: In this study, the modulation of metal-support interaction (MSI) in graphene-supported Ni catalyst was successfully achieved through an alloying strategy. A reasonable Ni/Cu ratio significantly enhanced the MSI in the NiCu cocatalyst, leading to the presence of smaller NiCu alloy nanoparticles with sufficient active sites and optimized hydrogen adsorption on the NiCu surface. As a result, the NiCu cocatalyst exhibited improved electrocatalytic and photocatalytic HER performance compared to monometallic Ni and Cu catalysts.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Inorganic & Nuclear
Noemie Lalaoui, Mohamed Abdellah, Kelly L. Materna, Bo Xu, Haining Tian, Anders Thapper, Jacinto Sa, Leif Hammarstrom, Sascha Ott
Summary: This study reports a novel photocathode nanohybrid system that generates H-2 through photo-reduction of aqueous protons. A supramolecular approach using β-cyclodextrin functionalized gold nanoparticles was employed to connect the dye and catalyst. The results demonstrate high photoconversion efficiency and efficient H-2 evolution in this new architecture.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Physical
Wen-Feng Lai, Pei-Ling Chao, Xin-Yu Lin, Yin-Pei Chen, Jih-Hsin Liu, Tz-Feng Lin, Wei-Chou Hsu, Chia-Yi Huang
Summary: In this study, a one-dimensional protrusive TiO2 strip array was fabricated using chemical and physical methods. A porous semiconductor layer was coated on the strip array. The results showed that the DSSC with the TiO2 strip array had a higher energy conversion efficiency, which can be attributed to the large surface area of the protrusive structure and its specific electron transport paths.
Article
Materials Science, Multidisciplinary
Fengjuan Miao, Fuchen Chu, Bingcheng Sun, Bairui Tao, Peng Zhang, Yu Zang, Paul K. Chu
Summary: This study presents the design and fabrication of a photoanode composed of Au/SnS/TiO2 sensitized with natural dye for dye-sensitized solar cells (DSSCs). By calcination, a layer of spherical nano-TiO2 is prepared, and a layer of nano-SnS is deposited on the TiO2 photoanode using the continuous ion layer adsorption reaction (SILAR). The sensitized Au nanoparticles exhibit enhanced localized surface plasmon resonance (LSPR) effects and electron trapping ability, resulting in improved electron mobility and reduced electron recombination in the DSSC.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Physics, Multidisciplinary
Yu-Chih Chiang, Chia-Rong Lee, Chia-Yi Huang
Summary: A 90-nm-thick TiO2 grid was fabricated using photolithography, sputtering, and lift-off process. A nanoporous film was deposited on the TiO2 grid, which induced a protrusive structure. Experimental results showed that introducing the TiO2 grid into a dye-sensitized solar cell increased its power conversion efficiency by 25%. This improvement can be attributed to the large surface area and directional electron transport channels of the protrusive structure.
Article
Chemistry, Inorganic & Nuclear
Nobutaka Yoshimura, Masaki Yoshida, Masako Kato, Atsushi Kobayashi
Summary: In this study, a series of Ru(II)-dye-double-layered DSPs with different surface bound metal cations were synthesized and their photocatalytic H2 evolution activity was investigated. The results showed that redox-inactive and highly charged metal cations improve the electron donation, while heavy metal cations contribute to the metal-to-ligand charge-transfer excitation.
INORGANIC CHEMISTRY
(2022)
Article
Energy & Fuels
Weiying Zhang, Ze Li, Hong Li, Weiting Li, Shaoqin Peng, Yuexiang Li
Summary: Developing efficient catalysts for hydrogen evolution reaction (HER) remains a challenge. In this study, an amorphous NiO/reduced graphene oxide (A-NG) composite was successfully synthesized as a cocatalyst for enhanced photo-catalytic H2 evolution via dye sensitization. The characterization results revealed strong interaction between amorphous NiO nanoparticles and graphene sheets, leading to improved adsorption and electron transfer efficiency, resulting in enhanced photocatalytic HER activity.
Article
Chemistry, Physical
Zhongyuan Fu, Xinyi Ma, Bing Xia, Xiaoyun Hu, Jun Fan, Enzhou Liu
Summary: The Cu-Cu3P/TiO2 nano sheet hybrid achieved a superior H2 evolution rate under simulated sunlight, attributed to the collaboration effect of Schottky junction and p-n heterojunction among Cu/TiO2 and Cu3P/TiO2.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Multidisciplinary
Bandana Ranamagar, Isaac Abiye, Fasil Abebe
Summary: The Rhodamine-6G derivative Rhd and its metal complexes with aluminum and chromium ions were synthesized and characterized using UV-vis and fluorescence spectroscopy. Dye-sensitized solar cells (DSSCs) were fabricated with Rhd and the metal complexes, and their solar-to-electric power efficiencies were determined through current-density measurements and Electrochemical Impedance Spectroscopy (EIS). The Rhd and Cr3+-sensitized solar cell showed the highest solar to electric power efficiency at 0.16%.
Article
Nanoscience & Nanotechnology
Kubra Turgut, Sinem Altinisik, Gizem Yanalak, Sermet Koyuncu, Imren Hatay Patir
Summary: Viologens can serve as effective electron-transfer mediators and modifiers for semiconductors in photocatalytic systems. In this study, hybrid photocatalysts composed of TiO2 nanoparticles and star-shaped viologen derivatives were prepared for visible-light-driven hydrogen evolution. TPCBP-E_TiO2 exhibited the highest hydrogen evolution activity among the structures, with superior apparent quantum yield and electron transfer efficiency.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Elif Can, Betul Uralcan, Ramazan Yildirim
Summary: Photocatalytic hydrogen production is considered as a cost-efficient method to produce hydrogen fuel with minimal environmental impact. In this study, a photocatalyst system composed of Pt/TiO2 and dye-sensitized Pt/TiO2 particulates encapsulated by an ionic liquid is proposed, which significantly enhances the efficiency of hydrogen production. Various analyses showed that the ionic liquid coating improves charge transfer and prevents recombination of electron-hole pairs, leading to increased hydrogen production rates.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Wenqian Huang, Wenhua Xue, Xiaoyun Hu, Jun Fan, Chunni Tang, Enzhou Liu
Summary: This study demonstrates the efficient H-2 evolution by decorating cobalt selenide (Co3Se4) microspheres on TiO2, and achieves both high activity and stability for hydrogen production.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Dahyunir Dahlan, Marjoni Imamora Ali Umar, Siti Naqiyah Sadikin, Jaenudin Ridwan, Akrajas Ali Umar
Summary: This study reports that magnesium doping can enhance the photovoltaic performance of dye-sensitized solar cells by passivating electron traps and improving interfacial charge transfer.
Article
Chemistry, Physical
Nobutaka Yoshimura, Atsushi Kobayashi, Tomoki Kondo, Ryu Abe, Masaki Yoshida, Masako Kato
Summary: The combination of Ru-dye double layering and Pt cocatalyst intercalation to layered niobate semiconductor effectively suppresses back electron transfers at interfaces, leading to efficient photocatalytic hydrogen production. Double nano-architectures controlling the surfaces of the semiconductor and cocatalyst demonstrate great potential for photo-induced charge separation at the solid-solution interface, expanding the possibilities of layered semiconductor materials toward Z-scheme water splitting.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Energy & Fuels
Abdullah Atilgan, Abdullah Yildiz
Summary: The development of novel bilayer photoanodes is crucial for efficient dye-sensitized solar cells. In this study, a homojunction photoanode consisting of undoped and Ni-doped TiO2 layers was prepared. By tuning the location of the doped layer, the photoconversion efficiency was greatly improved. The bilayer structure enhanced light absorption, resulting in increased short circuit current and open-circuit voltage.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Daisuke Takimoto, Katsutoshi Fukuda, Shu Miyasaka, Takanobu Ishida, Yusuke Ayato, Dai Mochizuki, Wataru Shimizu, Wataru Sugimoto
Article
Engineering, Chemical
Naoto Haneishi, Shuntaro Tsubaki, Masato M. Maitani, Eiichi Suzuki, Satoshi Fujii, Yuji Wada
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2017)
Article
Physics, Applied
Masato M. Maitani, Hirokazu Satou, Aoi Ohmura, Shuntaro Tsubaki, Yuji Wada
JAPANESE JOURNAL OF APPLIED PHYSICS
(2017)
Article
Chemistry, Physical
Daisuke Takimoto, Tomohiro Ohnishi, Jeerapat Nutariya, Zhongrong Shen, Yusuke Ayato, Dai Mochizuki, Arnaud Demortiere, Adrien Boulineau, Wataru Sugimoto
JOURNAL OF CATALYSIS
(2017)
Article
Chemistry, Physical
Orlando M. Cabarcos, Swen Schuster, Iris Hehn, Peng Peng Zhang, Masato M. Maitani, Nichole Sullivan, Jean-Benoit Giguere, Jean-Francois Morin, Paul S. Weiss, Egbert Zojer, Michael Zhamikov, David L. Allara
JOURNAL OF PHYSICAL CHEMISTRY C
(2017)
Article
Chemistry, Physical
M. M. Maitani, K. Tanaka, Q. Shen, T. Toyoda, Y. Wada
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2017)
Article
Chemistry, Analytical
Pierre-Yves Olu, Tomohiro Ohnishi, Dai Mochizuki, Wataru Sugimoto
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2018)
Review
Energy & Fuels
Yuji Wada, Shuntaro Tsubaki, Masato M. Maitani, Satoshi Fujii, Fuminao Kishimoto, Naoto Haneishi
JOURNAL OF THE JAPAN PETROLEUM INSTITUTE
(2018)
Article
Chemistry, Organic
Hisashi Masui, Masato M. Maitani, Shinichiro Fuse, Ayaka Yamamura, Yuhei Ogomi, Shuzi Hayase, Tatsuo Kaiho, Hiroshi Tanaka, Yuji Wada, Takashi Takahashi
ASIAN JOURNAL OF ORGANIC CHEMISTRY
(2018)
Article
Chemistry, Physical
Zeguo Tang, Satoshi Uchida, Takeru Bessho, Takumi Kinoshita, Haibin Wang, Fumiyasu Awai, Ryota Jono, Masato M. Maitani, Jotaro Nakazaki, Takaya Kubo, Hiroshi Segawa
Editorial Material
Physics, Applied
Koji Matsubara, Akira Yamada, Takashi Minemoto, Takashi Itoh, Koji Arafune, Hiroyuki Fujiwara, Shuzi Hayase, Masahiro Hiramoto, Yoshihiro Hishikawa, Mitsuru Imaizumi, Masakazu Ito, Izumi Kaizuka, Takuya Kato, Keiichi Komoto, Takaya Kubo, Masato Maitani, Atsushi Masuda, Shinsuke Miyajima, Kengo Morita, Takayuki Negami, Kazuhiko Ogimoto, Keisuke Ohdaira, Yoshio Ohshita, Yoshitaka Okada, Tamotsu Okamoto, Itaru Osaka, Hitoshi Sai, Takeaki Sakurai, Qing Shen, Hajima Shibata, Takeyoshi Sugaya, Mutsumi Sugiyama, Tatsuya Takamoto, Tooru Tanaka, Akira Terakawa, Yuzuru Ueda, Noritaka Usami, Shinji Wakao, Shuhei Yagi, Sanshiro Yamanaka, Yuji Yoshida, Masahiro Yoshita
JAPANESE JOURNAL OF APPLIED PHYSICS
(2018)
Article
Nanoscience & Nanotechnology
Fuminao Kishimoto, Dai Mochizuki, Masato M. Maitani, Eiichi Suzuki, Yuji Wada
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Electrochemistry
Daisuke Takimoto, Yusuke Ayato, Dai Mochizuki, Wataru Sugimoto
Article
Electrochemistry
Masato M. Maitani, Daikichi Iso, Junbeom Kim, Shuntaro Tsubaki, Yuji Wada
Article
Nanoscience & Nanotechnology
Masato M. Maitani, Takuya Yamada, Hisanori Mashiko, Kohei Yoshimatsu, Takayoshi Shim, Akira Ohtomo, Yuji Wada
ACS APPLIED MATERIALS & INTERFACES
(2017)
