C.H. Ao

2.1k total citations
18 papers, 1.9k citations indexed

About

C.H. Ao is a scholar working on Renewable Energy, Sustainability and the Environment, Materials Chemistry and Health, Toxicology and Mutagenesis. According to data from OpenAlex, C.H. Ao has authored 18 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Renewable Energy, Sustainability and the Environment, 7 papers in Materials Chemistry and 5 papers in Health, Toxicology and Mutagenesis. Recurrent topics in C.H. Ao's work include TiO2 Photocatalysis and Solar Cells (13 papers), Advanced Photocatalysis Techniques (11 papers) and Catalytic Processes in Materials Science (6 papers). C.H. Ao is often cited by papers focused on TiO2 Photocatalysis and Solar Cells (13 papers), Advanced Photocatalysis Techniques (11 papers) and Catalytic Processes in Materials Science (6 papers). C.H. Ao collaborates with scholars based in Hong Kong, China and Australia. C.H. Ao's co-authors include Shuncheng Lee, Chee Leung Mak, Jimmy C. Yu, Jiaguo Yu, Huogen Yu, Haiming Liu, Jian Zhen Yu, Jianrong Xu, F.B. Li and Meifang Hou and has published in prestigious journals such as Nature Communications, Nano Letters and Applied Catalysis B: Environmental.

In The Last Decade

C.H. Ao

17 papers receiving 1.8k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
C.H. Ao Hong Kong 15 1.3k 944 346 326 140 18 1.9k
Qiujian Xu China 11 823 0.6× 658 0.7× 328 0.9× 268 0.8× 182 1.3× 12 1.4k
Timothy N. Obee United States 12 1.3k 1.0× 900 1.0× 328 0.9× 143 0.4× 84 0.6× 16 1.7k
Gloria Restrepo Colombia 21 846 0.7× 640 0.7× 198 0.6× 240 0.7× 107 0.8× 75 1.6k
Hsin Chu Taiwan 21 921 0.7× 1.1k 1.1× 377 1.1× 93 0.3× 111 0.8× 76 2.0k
Valérie Hequet France 19 745 0.6× 553 0.6× 268 0.8× 164 0.5× 66 0.5× 44 1.3k
Dinh-Trinh Tran Vietnam 26 959 0.7× 737 0.8× 407 1.2× 206 0.6× 92 0.7× 57 1.7k
Chang‐Seo Lee Canada 26 2.2k 1.7× 1.8k 1.9× 1.0k 2.9× 330 1.0× 295 2.1× 49 3.1k
Zhuo Xiong China 27 1.4k 1.1× 1.4k 1.5× 548 1.6× 182 0.6× 178 1.3× 82 2.5k
Yujie Zhan China 18 888 0.7× 1.1k 1.2× 473 1.4× 78 0.2× 76 0.5× 27 1.6k
Huazhen Shen China 19 363 0.3× 694 0.7× 240 0.7× 257 0.8× 72 0.5× 82 1.1k

Countries citing papers authored by C.H. Ao

Since Specialization
Citations

This map shows the geographic impact of C.H. Ao'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 C.H. Ao with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites C.H. Ao more than expected).

Fields of papers citing papers by C.H. Ao

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by C.H. Ao. 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 C.H. Ao. The network helps show where C.H. Ao may publish in the future.

Co-authorship network of co-authors of C.H. Ao

This figure shows the co-authorship network connecting the top 25 collaborators of C.H. Ao. A scholar is included among the top collaborators of C.H. Ao 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 C.H. Ao. C.H. Ao is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

18 of 18 papers shown
1.
Liu, Wei, Song Li, Nai‐Jie Guo, et al.. (2025). Experimental Observation of Spin Defects in the van der Waals Material GeS 2. Nano Letters. 25(46). 16330–16339.
2.
Wang, Zhaoan, Xiaodong Zeng, Yi‐Tao Wang, et al.. (2025). Versatile photonic frequency synthetic dimensions using a single programmable on-chip device. Nature Communications. 16(1). 7780–7780. 1 indexed citations
3.
Yu, Huogen, et al.. (2007). Effects of Substrates on the Composition and Microstructure of TiO<sub>2</sub> Thin Films Prepared by the LPD Method. Key engineering materials. 280-283. 795–800. 1 indexed citations
4.
Ao, C.H., Michael K.H. Leung, Dennis Y.C. Leung, et al.. (2006). Photocatalytic decolorization of anthraquinonic dye by TiO2 thin film under UVA and visible-light irradiation. Chemical Engineering Journal. 129(1-3). 153–159. 29 indexed citations
5.
Lee, Shuncheng, Huogen Yu, Jiaguo Yu, & C.H. Ao. (2006). Fabrication, characterization and photocatalytic activity of preferentially oriented TiO2 films. Journal of Crystal Growth. 295(1). 60–68. 20 indexed citations
6.
Yu, Jiaguo, Huogen Yu, C.H. Ao, et al.. (2005). Preparation, characterization and photocatalytic activity of in situ Fe-doped TiO2 thin films. Thin Solid Films. 496(2). 273–280. 146 indexed citations
7.
Yu, Huogen, Shuncheng Lee, C.H. Ao, & Jiaguo Yu. (2005). Low-temperature fabrication and photocatalytic activity of clustered TiO2 particles formed on glass fibers. Journal of Crystal Growth. 280(3-4). 612–619. 23 indexed citations
8.
Yu, Huogen, Shuncheng Lee, Jiaguo Yu, & C.H. Ao. (2005). Photocatalytic activity of dispersed TiO2 particles deposited on glass fibers. Journal of Molecular Catalysis A Chemical. 246(1-2). 206–211. 80 indexed citations
9.
Li, F.B., X.Z. Li, C.H. Ao, Shuncheng Lee, & Meifang Hou. (2004). Enhanced photocatalytic degradation of VOCs using Ln3+–TiO2 catalysts for indoor air purification. Chemosphere. 59(6). 787–800. 150 indexed citations
10.
Ao, C.H., Shuncheng Lee, Jian Zhen Yu, & Jianrong Xu. (2004). Photodegradation of formaldehyde by photocatalyst TiO2: effects on the presences of NO, SO2 and VOCs. Applied Catalysis B: Environmental. 54(1). 41–50. 192 indexed citations
11.
Ao, C.H., Shuncheng Lee, Shuai-Wen Zou, & Chee Leung Mak. (2004). Inhibition effect of SO2 on NO and VOCs during the photodegradation of synchronous indoor air pollutants at parts per billion (ppb) level by TiO2. Applied Catalysis B: Environmental. 49(3). 187–193. 57 indexed citations
12.
Li, F.B., Xiaotian Li, C.H. Ao, Meifang Hou, & Shuncheng Lee. (2004). Photocatalytic conversion of NO using TiO2–NH3 catalysts in ambient air environment. Applied Catalysis B: Environmental. 54(4). 275–283. 37 indexed citations
13.
Ao, C.H. & Shuncheng Lee. (2004). Indoor air purification by photocatalyst TiO2 immobilized on an activated carbon filter installed in an air cleaner. Chemical Engineering Science. 60(1). 103–109. 253 indexed citations
14.
Ao, C.H. & Shuncheng Lee. (2003). Enhancement effect of TiO2 immobilized on activated carbon filter for the photodegradation of pollutants at typical indoor air level. Applied Catalysis B: Environmental. 44(3). 191–205. 202 indexed citations
15.
Ao, C.H., Shuncheng Lee, Chee Leung Mak, & Haiming Liu. (2003). Photodegradation of volatile organic compounds (VOCs) and NO for indoor air purification using TiO2: promotion versus inhibition effect of NO. Applied Catalysis B: Environmental. 42(2). 119–129. 195 indexed citations
16.
Ao, C.H., Shuncheng Lee, & Jimmy C. Yu. (2003). Photocatalyst TiO2 supported on glass fiber for indoor air purification: effect of NO on the photodegradation of CO and NO2. Journal of Photochemistry and Photobiology A Chemistry. 156(1-3). 171–177. 114 indexed citations
17.
Ao, C.H. & Shuncheng Lee. (2003). Combination effect of activated carbon with TiO2 for the photodegradation of binary pollutants at typical indoor air level. Journal of Photochemistry and Photobiology A Chemistry. 161(2-3). 131–140. 135 indexed citations
18.
Lee, Shuncheng, et al.. (2002). Investigation of indoor air quality at residential homes in Hong Kong—case study. Atmospheric Environment. 36(2). 225–237. 221 indexed citations

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.

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