Nnamdi Azikiwe University

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Short name

UNIZIK

Country, city

Nigeria, Awka

02r6pfc06

Organization website

Publications

3 641

Citations

49 536

h-index

Top-3 journals

SSRN Electronic Journal (141 publications)

Heliyon (56 publications)

Bioresource Technology (27 publications)

Top-3 organizations

University of Nigeria (652 publications)

University of Ilorin (251 publications)

Nnamdi Azikiwe University Teaching Hospital (207 publications)

Top-3 foreign organizations

University of Johannesburg (62 publications)

University of the Free State (56 publications)

Texas Tech University (54 publications)

Top-1 researchers by h-index

Ejivade Mercy

🤝

lecturer

h-index: 0

Most cited in 5 years

Found

Publication title

Publisher

Journal

Countries

Found

Since 1992

Total publications

3641

Total citations

49536

Citations per publication

13.61

Average publications per year

104.03

Average authors per publication

5.62

h-index

Metrics description

h-index

A scientist has an h-index if h of his N publications are cited at least h times each, while the remaining (N - h) publications are cited no more than h times each.

https://www.pnas.org/doi/full/10.1073/pnas.0507655102

Top-30

Fields of science

	50 100 150 200 250 300 350 400 450
General Medicine	General Medicine, 439, 12.06% General Medicine 439 publications, 12.06%
Public Health, Environmental and Occupational Health	Public Health, Environmental and Occupational Health, 166, 4.56% Public Health, Environmental and Occupational Health 166 publications, 4.56%
Renewable Energy, Sustainability and the Environment	Renewable Energy, Sustainability and the Environment, 157, 4.31% Renewable Energy, Sustainability and the Environment 157 publications, 4.31%
Waste Management and Disposal	Waste Management and Disposal, 150, 4.12% Waste Management and Disposal 150 publications, 4.12%
General Chemical Engineering	General Chemical Engineering, 138, 3.79% General Chemical Engineering 138 publications, 3.79%
Environmental Chemistry	Environmental Chemistry, 125, 3.43% Environmental Chemistry 125 publications, 3.43%
Environmental Engineering	Environmental Engineering, 123, 3.38% Environmental Engineering 123 publications, 3.38%
Pollution	Pollution, 123, 3.38% Pollution 123 publications, 3.38%
Materials Chemistry	Materials Chemistry, 117, 3.21% Materials Chemistry 117 publications, 3.21%
Multidisciplinary	Multidisciplinary, 110, 3.02% Multidisciplinary 110 publications, 3.02%
General Environmental Science	General Environmental Science, 106, 2.91% General Environmental Science 106 publications, 2.91%
Infectious Diseases	Infectious Diseases, 101, 2.77% Infectious Diseases 101 publications, 2.77%
Polymers and Plastics	Polymers and Plastics, 95, 2.61% Polymers and Plastics 95 publications, 2.61%
General Chemistry	General Chemistry, 92, 2.53% General Chemistry 92 publications, 2.53%
Health, Toxicology and Mutagenesis	Health, Toxicology and Mutagenesis, 91, 2.5% Health, Toxicology and Mutagenesis 91 publications, 2.5%
Mechanical Engineering	Mechanical Engineering, 81, 2.22% Mechanical Engineering 81 publications, 2.22%
Water Science and Technology	Water Science and Technology, 80, 2.2% Water Science and Technology 80 publications, 2.2%
General Materials Science	General Materials Science, 72, 1.98% General Materials Science 72 publications, 1.98%
Pharmacology	Pharmacology, 71, 1.95% Pharmacology 71 publications, 1.95%
Physical and Theoretical Chemistry	Physical and Theoretical Chemistry, 69, 1.9% Physical and Theoretical Chemistry 69 publications, 1.9%
Management, Monitoring, Policy and Law	Management, Monitoring, Policy and Law, 69, 1.9% Management, Monitoring, Policy and Law 69 publications, 1.9%
Pharmacology (medical)	Pharmacology (medical), 68, 1.87% Pharmacology (medical) 68 publications, 1.87%
Biotechnology	Biotechnology, 68, 1.87% Biotechnology 68 publications, 1.87%
Biochemistry	Biochemistry, 67, 1.84% Biochemistry 67 publications, 1.84%
Industrial and Manufacturing Engineering	Industrial and Manufacturing Engineering, 67, 1.84% Industrial and Manufacturing Engineering 67 publications, 1.84%
Mechanics of Materials	Mechanics of Materials, 67, 1.84% Mechanics of Materials 67 publications, 1.84%
Obstetrics and Gynecology	Obstetrics and Gynecology, 63, 1.73% Obstetrics and Gynecology 63 publications, 1.73%
General Engineering	General Engineering, 62, 1.7% General Engineering 62 publications, 1.7%
Health Policy	Health Policy, 61, 1.68% Health Policy 61 publications, 1.68%
Psychiatry and Mental health	Psychiatry and Mental health, 59, 1.62% Psychiatry and Mental health 59 publications, 1.62%
	50 100 150 200 250 300 350 400 450

Journals

	20 40 60 80 100 120 140 160
SSRN Electronic Journal	SSRN Electronic Journal, 141, 3.87% SSRN Electronic Journal 141 publications, 3.87%
Heliyon	Heliyon, 56, 1.54% Heliyon 56 publications, 1.54%
Bioresource Technology	Bioresource Technology, 27, 0.74% Bioresource Technology 27 publications, 0.74%
Scientific Reports	Scientific Reports, 24, 0.66% Scientific Reports 24 publications, 0.66%
Polymer-Plastics Technology and Materials	Polymer-Plastics Technology and Materials, 24, 0.66% Polymer-Plastics Technology and Materials 24 publications, 0.66%
Chemistry Africa	Chemistry Africa, 24, 0.66% Chemistry Africa 24 publications, 0.66%
Clinica Chimica Acta	Clinica Chimica Acta, 23, 0.63% Clinica Chimica Acta 23 publications, 0.63%
Applied Water Science	Applied Water Science, 22, 0.6% Applied Water Science 22 publications, 0.6%
Journal of Environmental Chemical Engineering	Journal of Environmental Chemical Engineering, 20, 0.55% Journal of Environmental Chemical Engineering 20 publications, 0.55%
Scientific African	Scientific African, 20, 0.55% Scientific African 20 publications, 0.55%
PLoS ONE	PLoS ONE, 19, 0.52% PLoS ONE 19 publications, 0.52%
Value in Health	Value in Health, 18, 0.49% Value in Health 18 publications, 0.49%
Current Research in Green and Sustainable Chemistry	Current Research in Green and Sustainable Chemistry, 18, 0.49% Current Research in Green and Sustainable Chemistry 18 publications, 0.49%
Biomass Conversion and Biorefinery	Biomass Conversion and Biorefinery, 17, 0.47% Biomass Conversion and Biorefinery 17 publications, 0.47%
Environmental Science and Pollution Research	Environmental Science and Pollution Research, 17, 0.47% Environmental Science and Pollution Research 17 publications, 0.47%
Sugar Tech	Sugar Tech, 16, 0.44% Sugar Tech 16 publications, 0.44%
Biofuels	Biofuels, 15, 0.41% Biofuels 15 publications, 0.41%
Sustainability	Sustainability, 15, 0.41% Sustainability 15 publications, 0.41%
International Journal of Environmental Analytical Chemistry	International Journal of Environmental Analytical Chemistry, 14, 0.38% International Journal of Environmental Analytical Chemistry 14 publications, 0.38%
International Journal of Environmental Science and Technology	International Journal of Environmental Science and Technology, 14, 0.38% International Journal of Environmental Science and Technology 14 publications, 0.38%
AFRICAN JOURNAL OF BIOTECHNOLOGY	AFRICAN JOURNAL OF BIOTECHNOLOGY, 14, 0.38% AFRICAN JOURNAL OF BIOTECHNOLOGY 14 publications, 0.38%
Sustainable Water Resources Management	Sustainable Water Resources Management, 14, 0.38% Sustainable Water Resources Management 14 publications, 0.38%
Cleaner Chemical Engineering	Cleaner Chemical Engineering, 14, 0.38% Cleaner Chemical Engineering 14 publications, 0.38%
Encyclopedia of the UN Sustainable Development Goals	Encyclopedia of the UN Sustainable Development Goals, 14, 0.38% Encyclopedia of the UN Sustainable Development Goals 14 publications, 0.38%
European Journal of Sustainable Development Research	European Journal of Sustainable Development Research, 14, 0.38% European Journal of Sustainable Development Research 14 publications, 0.38%
Journal of the Chinese Advanced Materials Society	Journal of the Chinese Advanced Materials Society, 14, 0.38% Journal of the Chinese Advanced Materials Society 14 publications, 0.38%
Nigerian Journal of Clinical Practice	Nigerian Journal of Clinical Practice, 13, 0.36% Nigerian Journal of Clinical Practice 13 publications, 0.36%
Bulletin of Faculty of Physical Therapy	Bulletin of Faculty of Physical Therapy, 13, 0.36% Bulletin of Faculty of Physical Therapy 13 publications, 0.36%
Cleaner Materials	Cleaner Materials, 13, 0.36% Cleaner Materials 13 publications, 0.36%
International Journal of Polymeric Materials and Polymeric Biomaterials	International Journal of Polymeric Materials and Polymeric Biomaterials, 12, 0.33% International Journal of Polymeric Materials and Polymeric Biomaterials 12 publications, 0.33%
	20 40 60 80 100 120 140 160

Publishers

	100 200 300 400 500 600 700 800 900
Elsevier	Elsevier, 885, 24.31% Elsevier 885 publications, 24.31%
Springer Nature	Springer Nature, 798, 21.92% Springer Nature 798 publications, 21.92%
Taylor & Francis	Taylor & Francis, 348, 9.56% Taylor & Francis 348 publications, 9.56%
Wiley	Wiley, 216, 5.93% Wiley 216 publications, 5.93%
SAGE	SAGE, 169, 4.64% SAGE 169 publications, 4.64%
Social Science Electronic Publishing	Social Science Electronic Publishing, 126, 3.46% Social Science Electronic Publishing 126 publications, 3.46%
Academic Journals	Academic Journals, 104, 2.86% Academic Journals 104 publications, 2.86%
Emerald	Emerald, 86, 2.36% Emerald 86 publications, 2.36%
MDPI	MDPI, 86, 2.36% MDPI 86 publications, 2.36%
Walter de Gruyter	Walter de Gruyter, 60, 1.65% Walter de Gruyter 60 publications, 1.65%
Hindawi Limited	Hindawi Limited, 53, 1.46% Hindawi Limited 53 publications, 1.46%
Ovid Technologies (Wolters Kluwer Health)	Ovid Technologies (Wolters Kluwer Health), 48, 1.32% Ovid Technologies (Wolters Kluwer Health) 48 publications, 1.32%
Oxford University Press	Oxford University Press, 40, 1.1% Oxford University Press 40 publications, 1.1%
Public Library of Science (PLoS)	Public Library of Science (PLoS), 30, 0.82% Public Library of Science (PLoS) 30 publications, 0.82%
IOP Publishing	IOP Publishing, 26, 0.71% IOP Publishing 26 publications, 0.71%
IGI Global	IGI Global, 25, 0.69% IGI Global 25 publications, 0.69%
Frontiers Media S.A.	Frontiers Media S.A., 22, 0.6% Frontiers Media S.A. 22 publications, 0.6%
AOSIS	AOSIS, 22, 0.6% AOSIS 22 publications, 0.6%
Georg Thieme Verlag KG	Georg Thieme Verlag KG, 21, 0.58% Georg Thieme Verlag KG 21 publications, 0.58%
BMJ	BMJ, 21, 0.58% BMJ 21 publications, 0.58%
Bentham Science Publishers Ltd.	Bentham Science Publishers Ltd., 19, 0.52% Bentham Science Publishers Ltd. 19 publications, 0.52%
King Saud University	King Saud University, 15, 0.41% King Saud University 15 publications, 0.41%
American Chemical Society (ACS)	American Chemical Society (ACS), 14, 0.38% American Chemical Society (ACS) 14 publications, 0.38%
Lectito Publications	Lectito Publications, 14, 0.38% Lectito Publications 14 publications, 0.38%
AMO Publisher	AMO Publisher, 12, 0.33% AMO Publisher 12 publications, 0.33%
Cambridge University Press	Cambridge University Press, 11, 0.3% Cambridge University Press 11 publications, 0.3%
Inderscience Publishers	Inderscience Publishers, 11, 0.3% Inderscience Publishers 11 publications, 0.3%
Trans Tech Publications	Trans Tech Publications, 10, 0.27% Trans Tech Publications 10 publications, 0.27%
Royal Society of Chemistry (RSC)	Royal Society of Chemistry (RSC), 10, 0.27% Royal Society of Chemistry (RSC) 10 publications, 0.27%
American Association for Cancer Research (AACR)	American Association for Cancer Research (AACR), 10, 0.27% American Association for Cancer Research (AACR) 10 publications, 0.27%
	100 200 300 400 500 600 700 800 900

With other organizations

	100 200 300 400 500 600 700
University of Nigeria	University of Nigeria, 652, 17.91% University of Nigeria 652 publications, 17.91%
University of Ilorin	University of Ilorin, 251, 6.89% University of Ilorin 251 publications, 6.89%
Nnamdi Azikiwe University Teaching Hospital	Nnamdi Azikiwe University Teaching Hospital, 207, 5.69% Nnamdi Azikiwe University Teaching Hospital 207 publications, 5.69%
Chukwuemeka Odumegwu Ojukwu University	Chukwuemeka Odumegwu Ojukwu University, 188, 5.16% Chukwuemeka Odumegwu Ojukwu University 188 publications, 5.16%
University of Ibadan	University of Ibadan, 149, 4.09% University of Ibadan 149 publications, 4.09%
Enugu State University of Science and Technology	Enugu State University of Science and Technology, 141, 3.87% Enugu State University of Science and Technology 141 publications, 3.87%
Federal University of Technology Owerri	Federal University of Technology Owerri, 129, 3.54% Federal University of Technology Owerri 129 publications, 3.54%
Ebonyi State University	Ebonyi State University, 126, 3.46% Ebonyi State University 126 publications, 3.46%
Alex Ekwueme Federal University, Ndufu-Alike	Alex Ekwueme Federal University, Ndufu-Alike, 117, 3.21% Alex Ekwueme Federal University, Ndufu-Alike 117 publications, 3.21%
Michael Okpara University of Agriculture	Michael Okpara University of Agriculture, 101, 2.77% Michael Okpara University of Agriculture 101 publications, 2.77%
University of Lagos	University of Lagos, 92, 2.53% University of Lagos 92 publications, 2.53%
Abia State University	Abia State University, 83, 2.28% Abia State University 83 publications, 2.28%
University of Calabar	University of Calabar, 80, 2.2% University of Calabar 80 publications, 2.2%
Landmark University	Landmark University, 75, 2.06% Landmark University 75 publications, 2.06%
University of Nigeria Teaching Hospital	University of Nigeria Teaching Hospital, 75, 2.06% University of Nigeria Teaching Hospital 75 publications, 2.06%
University of Johannesburg	University of Johannesburg, 62, 1.7% University of Johannesburg 62 publications, 1.7%
Obafemi Awolowo University	Obafemi Awolowo University, 62, 1.7% Obafemi Awolowo University 62 publications, 1.7%
University of Port Harcourt	University of Port Harcourt, 60, 1.65% University of Port Harcourt 60 publications, 1.65%
Madonna University, Nigeria	Madonna University, Nigeria, 59, 1.62% Madonna University, Nigeria 59 publications, 1.62%
University of the Free State	University of the Free State, 56, 1.54% University of the Free State 56 publications, 1.54%
University of Benin	University of Benin, 56, 1.54% University of Benin 56 publications, 1.54%
Texas Tech University	Texas Tech University, 54, 1.48% Texas Tech University 54 publications, 1.48%
Kansas State University	Kansas State University, 48, 1.32% Kansas State University 48 publications, 1.32%
Federal University of Petroleum Resource Effurun	Federal University of Petroleum Resource Effurun, 46, 1.26% Federal University of Petroleum Resource Effurun 46 publications, 1.26%
Heinrich Heine University Düsseldorf	Heinrich Heine University Düsseldorf, 45, 1.24% Heinrich Heine University Düsseldorf 45 publications, 1.24%
Delta State University	Delta State University, 44, 1.21% Delta State University 44 publications, 1.21%
Wrocław University of Environmental and Life Sciences	Wrocław University of Environmental and Life Sciences, 38, 1.04% Wrocław University of Environmental and Life Sciences 38 publications, 1.04%
Ahmadu Bello University	Ahmadu Bello University, 36, 0.99% Ahmadu Bello University 36 publications, 0.99%
Bayero University, Kano	Bayero University, Kano, 36, 0.99% Bayero University, Kano 36 publications, 0.99%
Ladoke Akintola University of Technology	Ladoke Akintola University of Technology, 35, 0.96% Ladoke Akintola University of Technology 35 publications, 0.96%
	100 200 300 400 500 600 700

With foreign organizations

	10 20 30 40 50 60 70
University of Johannesburg	University of Johannesburg, 62, 1.7% University of Johannesburg 62 publications, 1.7%
University of the Free State	University of the Free State, 56, 1.54% University of the Free State 56 publications, 1.54%
Texas Tech University	Texas Tech University, 54, 1.48% Texas Tech University 54 publications, 1.48%
Kansas State University	Kansas State University, 48, 1.32% Kansas State University 48 publications, 1.32%
Heinrich Heine University Düsseldorf	Heinrich Heine University Düsseldorf, 45, 1.24% Heinrich Heine University Düsseldorf 45 publications, 1.24%
Wrocław University of Environmental and Life Sciences	Wrocław University of Environmental and Life Sciences, 38, 1.04% Wrocław University of Environmental and Life Sciences 38 publications, 1.04%
King Saud University	King Saud University, 30, 0.82% King Saud University 30 publications, 0.82%
University of Southampton	University of Southampton, 30, 0.82% University of Southampton 30 publications, 0.82%
University of the Witwatersrand	University of the Witwatersrand, 30, 0.82% University of the Witwatersrand 30 publications, 0.82%
North-West University	North-West University, 28, 0.77% North-West University 28 publications, 0.77%
University of Pretoria	University of Pretoria, 25, 0.69% University of Pretoria 25 publications, 0.69%
National Research Centre	National Research Centre, 25, 0.69% National Research Centre 25 publications, 0.69%
University of South Africa	University of South Africa, 24, 0.66% University of South Africa 24 publications, 0.66%
University of Chinese Academy of Sciences	University of Chinese Academy of Sciences, 23, 0.63% University of Chinese Academy of Sciences 23 publications, 0.63%
University of Hull	University of Hull, 22, 0.6% University of Hull 22 publications, 0.6%
Nelson Mandela University	Nelson Mandela University, 19, 0.52% Nelson Mandela University 19 publications, 0.52%
Johns Hopkins University	Johns Hopkins University, 18, 0.49% Johns Hopkins University 18 publications, 0.49%
University of Ghana	University of Ghana, 18, 0.49% University of Ghana 18 publications, 0.49%
University of Sharjah	University of Sharjah, 17, 0.47% University of Sharjah 17 publications, 0.47%
Harvard University	Harvard University, 17, 0.47% Harvard University 17 publications, 0.47%
Shoolini University	Shoolini University, 16, 0.44% Shoolini University 16 publications, 0.44%
University of Michigan	University of Michigan, 16, 0.44% University of Michigan 16 publications, 0.44%
University of Technology, Malaysia	University of Technology, Malaysia, 15, 0.41% University of Technology, Malaysia 15 publications, 0.41%
University of Bremen	University of Bremen, 15, 0.41% University of Bremen 15 publications, 0.41%
University of Sheffield	University of Sheffield, 15, 0.41% University of Sheffield 15 publications, 0.41%
University of Maroua	University of Maroua, 15, 0.41% University of Maroua 15 publications, 0.41%
Zabol University of Medical Sciences	Zabol University of Medical Sciences, 14, 0.38% Zabol University of Medical Sciences 14 publications, 0.38%
Leibniz Institute for Prevention Research and Epidemiology	Leibniz Institute for Prevention Research and Epidemiology, 14, 0.38% Leibniz Institute for Prevention Research and Epidemiology 14 publications, 0.38%
University of Yaoundé I	University of Yaoundé I, 14, 0.38% University of Yaoundé I 14 publications, 0.38%
Jiangsu University	Jiangsu University, 13, 0.36% Jiangsu University 13 publications, 0.36%
	10 20 30 40 50 60 70

With other countries

	50 100 150 200 250 300 350
USA	USA, 321, 8.82% USA 321 publications, 8.82%
United Kingdom	United Kingdom, 213, 5.85% United Kingdom 213 publications, 5.85%
South Africa	South Africa, 190, 5.22% South Africa 190 publications, 5.22%
Germany	Germany, 129, 3.54% Germany 129 publications, 3.54%
China	China, 115, 3.16% China 115 publications, 3.16%
India	India, 94, 2.58% India 94 publications, 2.58%
Canada	Canada, 64, 1.76% Canada 64 publications, 1.76%
Egypt	Egypt, 60, 1.65% Egypt 60 publications, 1.65%
Malaysia	Malaysia, 54, 1.48% Malaysia 54 publications, 1.48%
Australia	Australia, 48, 1.32% Australia 48 publications, 1.32%
Saudi Arabia	Saudi Arabia, 45, 1.24% Saudi Arabia 45 publications, 1.24%
Italy	Italy, 40, 1.1% Italy 40 publications, 1.1%
Iran	Iran, 39, 1.07% Iran 39 publications, 1.07%
Cameroon	Cameroon, 36, 0.99% Cameroon 36 publications, 0.99%
Poland	Poland, 35, 0.96% Poland 35 publications, 0.96%
Ghana	Ghana, 34, 0.93% Ghana 34 publications, 0.93%
Kenya	Kenya, 30, 0.82% Kenya 30 publications, 0.82%
Brazil	Brazil, 28, 0.77% Brazil 28 publications, 0.77%
Uganda	Uganda, 27, 0.74% Uganda 27 publications, 0.74%
Switzerland	Switzerland, 26, 0.71% Switzerland 26 publications, 0.71%
Iraq	Iraq, 24, 0.66% Iraq 24 publications, 0.66%
Japan	Japan, 24, 0.66% Japan 24 publications, 0.66%
Portugal	Portugal, 23, 0.63% Portugal 23 publications, 0.63%
UAE	UAE, 23, 0.63% UAE 23 publications, 0.63%
Republic of Korea	Republic of Korea, 19, 0.52% Republic of Korea 19 publications, 0.52%
Turkey	Turkey, 18, 0.49% Turkey 18 publications, 0.49%
France	France, 17, 0.47% France 17 publications, 0.47%
Belgium	Belgium, 17, 0.47% Belgium 17 publications, 0.47%
Mexico	Mexico, 17, 0.47% Mexico 17 publications, 0.47%
	50 100 150 200 250 300 350

We do not take into account publications without a DOI.
Statistics recalculated daily.
Publications published earlier than 1992 are ignored in the statistics.
The horizontal charts show the 30 top positions.
Journals quartiles values are relevant at the moment.

Science degree

Academy membership

Research interests

Skills