Koyu Aoki

879 total citations · 1 hit paper
9 papers, 747 citations indexed

About

Koyu Aoki is a scholar working on Materials Chemistry, Renewable Energy, Sustainability and the Environment and Electrical and Electronic Engineering. According to data from OpenAlex, Koyu Aoki has authored 9 papers receiving a total of 747 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Materials Chemistry, 5 papers in Renewable Energy, Sustainability and the Environment and 3 papers in Electrical and Electronic Engineering. Recurrent topics in Koyu Aoki's work include TiO2 Photocatalysis and Solar Cells (5 papers), Advanced Photocatalysis Techniques (5 papers) and Catalytic Processes in Materials Science (4 papers). Koyu Aoki is often cited by papers focused on TiO2 Photocatalysis and Solar Cells (5 papers), Advanced Photocatalysis Techniques (5 papers) and Catalytic Processes in Materials Science (4 papers). Koyu Aoki collaborates with scholars based in Japan and Switzerland. Koyu Aoki's co-authors include Takeshi Morikawa, Takeshi Ohwaki, Yasunori Taga, Ryoji Asahi, Yoshihiro Irokawa, Satoru Kosaka, Katsutoshi Yamamoto, Atsushi Muramatsu, Nobuaki Sato and Y. Tanishiro and has published in prestigious journals such as Applied Catalysis B: Environmental, Physical Chemistry Chemical Physics and Surface Science.

In The Last Decade

Koyu Aoki

9 papers receiving 734 citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Band-Gap Narrowing of Titanium Dioxide by Nitrogen Doping

2001 518 citations Takeshi Morikawa, Ryoji Asahi et al. Japanese Journal of Applied Physics profile →

Peers

Countries citing papers authored by Koyu Aoki

Since Specialization

Citations

This map shows the geographic impact of Koyu Aoki's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Koyu Aoki with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Koyu Aoki more than expected).

Fields of papers citing papers by Koyu Aoki

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Koyu Aoki. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Koyu Aoki. The network helps show where Koyu Aoki may publish in the future.

Co-authorship network of co-authors of Koyu Aoki

This figure shows the co-authorship network connecting the top 25 collaborators of Koyu Aoki. A scholar is included among the top collaborators of Koyu Aoki based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Koyu Aoki. Koyu Aoki is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

9 of 9 papers shown

#	Work	Indexed citations
1	Evaluation of photocatalytic activities and characteristics of Cu- or Fe-modified nitrogen-doped titanium dioxides for applications in environmental purification 2015 ·Japanese Journal of Applied Physics ·Takeshi Ohwaki, Shu Saeki, Koyu Aoki, Takeshi Morikawa	11
2	Remarkably enhanced photocatalytic activity by nickel nanoparticle deposition on sulfur-doped titanium dioxide thin film 2008 ·Applied Catalysis B: Environmental ·(unknown), Katsutoshi Yamamoto, Nobuaki Sato, Koyu Aoki, Takeshi Morikawa, Atsushi Muramatsu	32
3	Photodegradation of toluene over TiO2–xNx under visible light irradiation 2006 ·Physical Chemistry Chemical Physics ·Yoshihiro Irokawa, Takeshi Morikawa, Koyu Aoki, Satoru Kosaka, Takeshi Ohwaki, Yasunori Taga	113
4	Photocatalytic Degradation of Formaldehyde and Toluene Mixtures in Air with a Nitrogen-doped TiO2 Photocatalyst 2006 ·Chemistry Letters ·Koyu Aoki, Takeshi Morikawa, Takeshi Ohwaki, Yasunori Taga	19
5	Thermogravimetric study of the sulfurization of TiO2 nanoparticles using CS2 and the decomposition of their sulfurized product 2003 ·Thermochimica Acta ·(unknown), Nobuaki Sato, Katsutoshi Yamamoto, Atsushi Muramatsu, Koyu Aoki, Yasunori Taga	15
6	Characterization of Nitrogen-doped Titanium Oxide Photocatalyst Activated by Visible-light. 2003 ·Hyomen Kagaku ·Takeshi Ohwaki, Takeshi Morikawa, Koyu Aoki, Ryoji Asahi, Yasunori Taga, Noritake Isomura	5
7	Band-Gap Narrowing of Titanium Dioxide by Nitrogen Doping breakdown → 2001 ·Japanese Journal of Applied Physics ·Takeshi Morikawa, Ryoji Asahi, Takeshi Ohwaki, Koyu Aoki, Yasunori Taga	518
8	REM Studies of Adsorption-Induced Phase Transitions and Faceting in the Si(111)-Au System 1998 ·Surface Review and Letters ·Koyu Aoki, Hiroki Minoda, Y. Tanishiro, Katsumichi Yagi	13
9	Au adsorption induced faceting and phase transitions of facet planes on the Si[110] zone studied by UHV-REM 1998 ·Surface Science ·Koyu Aoki, Takayuki Suzuki, Hiroki Minoda, Y. Tanishiro, Katsumichi Yagi	21

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact