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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 48 15186 13684 2355 2336 113 8865

Hoi-Lun Kwong publications per year

The chart shows the history of publications by Hoi-Lun Kwong between 1988 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Hoi-Lun Kwong published across 38 years, from 1988 to 2025, averaging 3.1 papers a year. Output peaked at 10 publications in 2001. 1 of the 117 publications appeared in the last two years.

No. of publications
2 4 6 8 10
Bar chart. Horizontal axis: year, 1988 to 2025. Vertical axis: number of publications, 0 to 10. Peak 10 publications in 2001. 1988: 3 publications 1989: 3 publications 1990: 3 publications 1991: 2 publications 1992: 4 publications 1993: 2 publications 1994: 0 publications 1995: 0 publications 1996: 0 publications 1997: 2 publications 1998: 5 publications 1999: 6 publications 2000: 6 publications 2001: 10 publications 2002: 4 publications 2003: 5 publications 2004: 9 publications 2005: 4 publications 2006: 8 publications 2007: 7 publications 2008: 5 publications 2009: 5 publications 2010: 5 publications 2011: 6 publications 2012: 2 publications 2013: 2 publications 2014: 4 publications 2015: 3 publications 2016: 1 publication 2017: 0 publications 2018: 0 publications 2019: 0 publications 2020: 0 publications 2021: 0 publications 2022: 0 publications 2023: 0 publications 2024: 0 publications 2025: 1 publication
1988 2025

117 publications in total across all disciplines

View publications per year as a table
Hoi-Lun Kwong: publications per year, 1988 to 2025
Year Publications
1988 3
1989 3
1990 3
1991 2
1992 4
1993 2
1994 0
1995 0
1996 0
1997 2
1998 5
1999 6
2000 6
2001 10
2002 4
2003 5
2004 9
2005 4
2006 8
2007 7
2008 5
2009 5
2010 5
2011 6
2012 2
2013 2
2014 4
2015 3
2016 1
2017 0
2018 0
2019 0
2020 0
2021 0
2022 0
2023 0
2024 0
2025 1
Total 117
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Hoi-Lun Kwong publications per year - data summary

  • Hoi-Lun Kwong, a Chemistry scholar from City University of Hong Kong, has 117 publications recorded across 38 years, from 1988 to 2025.
  • The oldest publication on record dates to 1988 and the most recent to 2025.
  • The most productive year is 2001, with 10 publications.
  • The least productive years with any output are 2016 and 2025, with 1 publication each.
  • 11 of the 38 years in the span carry no publications at all (1994, 1995, 1996, 2017 and others).
  • The rate of publication averages 3.1 papers per year over the whole span, or 4.3 per year counting only the 27 years with at least one publication.
  • The last 5 years on the chart (2021-2025) hold 1 publication, <1% of the career total.
  • Split into equal eras - 1988-2000: 36 publications (2.8 per year); 2001-2013: 72 publications (5.5 per year); 2014-2025: 9 publications (0.8 per year).
  • Comparing the opening and closing eras, the overall trend of publication is declining.

Hoi-Lun Kwong publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Hoi-Lun Kwong sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 101–120 publications, is where this scientist sits. 61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61–80 publications 1,295+

This scientist: 113 publications — 4th percentile

4% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623 113
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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Hoi-Lun Kwong publication distribution in Chemistry in 2026 - data summary

  • The chart plots the publication count of all 17,934 Chemistry scientists ranked by Research.com in 2026, grouped into 63 ranges running from 61–80 to 1,295+ publications.
  • Hoi-Lun Kwong, a Chemistry scholar from City University of Hong Kong, records 113 publications - the 4th percentile of the discipline.
  • 4% of ranked Chemistry scientists score the same or lower than Hoi-Lun Kwong, and about 96% score higher.
  • The median of the discipline falls in the 241–260 publications range, and Hoi-Lun Kwong ranks below the median.
  • The most crowded range is 161–180 publications, holding 1,350 scientists (8% of the field).
  • 77% of the field sits in the lowest quarter of the value range (up to 361–380 publications), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 1,295 publications or more, 100 scientists in all (<1% of the field).

Hoi-Lun Kwong D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Hoi-Lun Kwong sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 48–49 D-Index, is where this scientist sits. 40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40–41 D-Index 159+

This scientist: 48 D-Index — 16th percentile

16% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835 48
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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Hoi-Lun Kwong D-index placement in Chemistry in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 17,934 Chemistry scientists ranked by Research.com in 2026, grouped into 61 ranges running from 40–41 to 159+ D-Index.
  • Hoi-Lun Kwong, a Chemistry scholar from City University of Hong Kong, records 48 D-Index - the 16th percentile of the discipline.
  • 16% of ranked Chemistry scientists score the same or lower than Hoi-Lun Kwong, and about 84% score higher.
  • The median of the discipline falls in the 62–63 D-Index range, and Hoi-Lun Kwong ranks below the median.
  • The most crowded range is 56–57 D-Index, holding 1,051 scientists (6% of the field).
  • 70% of the field sits in the lowest quarter of the value range (up to 70–71 D-Index), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 159 D-Index or more, 98 scientists in all (<1% of the field).

Overview

Hoi-Lun Kwong is affiliated with the City University of Hong Kong in China. Their recent research focuses on the application of mathematical and computational techniques to analyze complex real-world phenomena. A notable recent publication is titled Adaptive Fourier decomposition analysis of different pandemic stages in South Korean cities: policies and trends, published in 2025 in the Journal of Thoracic Disease.

The scientist collaborates frequently with a range of co-authors, including:

  • Feng Zhang
  • W. S. Shi
  • Zige Liu
  • Aaron Finley
  • Cen Ke-fa

Kwong's work is published in venues such as:

  • Journal of Thoracic Disease

The recent paper explores how adaptive Fourier decomposition methods can be used to analyze pandemic dynamics in urban environments, specifically examining policy impacts and trends during different stages of the COVID-19 pandemic in South Korea. This indicates an interdisciplinary approach combining applied mathematics, data analysis, and public health policy.

This scholarly profile demonstrates Kwong's involvement in contemporary issues related to health crises using advanced mathematical tools, reflecting ongoing research engagement with pandemic-related challenges.

Best Publications

  • The Osmium-Catalyzed Asymmetric Dihydroxylation: A New Ligand Class and a Process Improvement

    K. Barry Sharpless;Willi Amberg;Youssef L. Bennani;Gerard A. Crispino

  • Thermally Stable Hole-Transporting Material for Organic Light-Emitting Diode: an Isoindole Derivative

    Bao-Xiu Mi;Peng-Fei Wang;Man-Wah Liu;Hoi-Lun Kwong

  • Chiral pyridine-containing ligands in asymmetric catalysis

    Hoi-Lun Kwong;Ho-Lun Yeung;Chi-Tung Yeung;Wing-Sze Lee

  • Reduction of Self‐Quenching Effect in Organic Electrophosphorescence Emitting Devices via the Use of Sterically Hindered Spacers in Phosphorescence Molecules

    H. Z. Xie;M. W. Liu;O. Y. Wang;X. H. Zhang

  • Asymmetric Inter- and Intramolecular Cyclopropanation of Alkenes Catalyzed by Chiral Ruthenium Porphyrins. Synthesis and Crystal Structure of a Chiral Metalloporphyrin Carbene Complex

    Chi-Ming Che;Jie-Sheng Huang;Fu-Wa Lee;Yan Li

  • Spectroscopic properties and redox chemistry of the phosphorescent excited state of [Au2(dppm)2]2+[dppm = bis(diphenylphosphino)methane]

    Chi-Ming Che;Hoi-Lun Kwong;Vivian Wing-Wah Yam;Kar-Cheong Cho

  • A New Family of Red Dopants Based on Chromene-Containing Compounds for Organic Electroluminescent Devices

    X. H. Zhang;B. J. Chen;X. Q. Lin;O. Y. Wong

  • Spectroscopy and redox properties of the luminescent excited state of [Au2(dppm)2]2+ (dppm = Ph2PCH2PPh2)

    Chi-Ming Che;Hoi-Lun Kwong;Chung-Kwong Poon;Vivian Wing-Wah Yam

  • Carbon nanoparticle-based ratiometric fluorescent sensor for detecting mercury ions in aqueous media and living cells.

    Minhuan Lan;Jinfeng Zhang;Ying-San Chui;Pengfei Wang

  • Toward an understanding of the high enantioselectivity in the osmium-catalyzed asymmetric dihydroxylation. 4. Electronic effects in amine-accelerated osmylations

    Derek W. Nelson;Andreas Gypser;Pui Tong Ho;Hartmuth C. Kolb

  • Photoinduced C–C bond formation from alkyl halides catalysed by luminescent dinuclear gold(I) and copper(I) complexes

    Dan Li;Chi-Ming Che;Hoi-Lun Kwong;Vivian Wing-Wah Yam

  • Synthesis of porous ZnS:Ag2S nanosheets by ion exchange for photocatalytic H2 generation.

    Xia Yang;Hongtao Xue;Jun Xu;Jun Xu;Xing Huang;Xing Huang

  • High Tg Triphenylamine-Based Starburst Hole-Transporting Material for Organic Light-Emitting Devices

    Qing-Xiao Tong;Shiu-Lun Lai;Mei-Yee Chan;Ka-Ho Lai

  • A new family of isophorone-based dopants for red organic electroluminescent devices

    Jiuyan Li;Di Liu;Ziruo Hong;Shiwun Tong

  • Blue and white organic electroluminescent devices based on 9,10-bis(2′-naphthyl)anthracene

    X.H. Zhang;X.H. Zhang;M.W. Liu;O.Y. Wong;C.S. Lee

  • Synthesis and characterization of phenanthroimidazole derivatives for applications in organic electroluminescent devices

    Ying Zhang;Ying Zhang;Shiu-Lun Lai;Qing-Xiao Tong;Qing-Xiao Tong;Mei-Yee Chan

  • Low-temperature synthesis of CuInSe2 nanotube array on conducting glass substrates for solar cell application.

    Jun Xu;Chun-Yan Luan;Yong-Bing Tang;Xue Chen

  • Supramolecular double helical Cu(i) complexes for asymmetric cyclopropanation

    Chi Tung Yeung;Ho Lun Yeung;Chui Shan Tsang;Wai Yeung Wong

  • Reduction of molecular aggregation and its application to the high-performance blue perylene-doped organic electroluminescent device

    B. X. Mi;Z. Q. Gao;C. S. Lee;S. T. Lee

  • CATALYTIC AND ASYMMETRIC AZIRIDINATION OF ALKENES CATALYSED BY A CHIRAL MANGANESE PORPHYRIN COMPLEX

    Tat-Shing Lai;Chi-Ming Che;Hoi-Lun Kwong;Shie-Ming Peng

  • A chiral iron-sexipyridine complex as a catalyst for alkene epoxidation with hydrogen peroxide.

    Ho-Lun Yeung;Kiu-Chor Sham;Chui-Shan Tsang;Tai-Chu Lau

Frequent Co-Authors

Shuit-Tong Lee
Shuit-Tong Lee Macau University of Science and Technology
Chi-Ming Che
Chi-Ming Che University of Hong Kong
Wing-Tak Wong
Wing-Tak Wong Hong Kong Polytechnic University
Chun-Sing Lee
Chun-Sing Lee City University of Hong Kong
Xiaohong Zhang
Xiaohong Zhang Soochow University
K. Barry Sharpless
K. Barry Sharpless Scripps Research Institute
Wai-Yeung Wong
Wai-Yeung Wong Hong Kong Polytechnic University
Pengfei Wang
Pengfei Wang Harbin Engineering University
Vivian Wing-Wah Yam
Vivian Wing-Wah Yam University of Hong Kong
Tai-Chu Lau
Tai-Chu Lau City University of Hong Kong

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