title: Qualitative and quantitative analysis of solar hydrogen generation literature from 2001 to 2014.
abstract: Solar hydrogen generation is one of the new topics in the field of renewable energy. Recently, the rate of investigation about hydrogen generation is growing dramatically in many countries. Many studies have been done about hydrogen generation from natural resources such as wind, solar, coal etc. In this work we evaluated global scientific production of solar hydrogen generation papers from 2001 to 2014 in any journal of all the subject categories of the Science Citation Index compiled by Institute for Scientific Information (ISI), Philadelphia, USA. Solar hydrogen generation was used as keywords to search the parts of titles, abstracts, or keywords. The published output analysis showed that hydrogen generation from the sun research steadily increased over the past 14 years and the annual paper production in 2013 was about three times 2010-paper production. The number of papers considered in this research is 141 which have been published from 2001 to this date. There are clear distinctions among author keywords used in publications from the five most high-publishing countries such as USA, China, Australia, Germany and India in solar hydrogen studies. In order to evaluate this work quantitative and qualitative analysis methods were used to the development of global scientific production in a specific research field. The analytical results eventually provide several key findings and consider the overview hydrogen production according to the solar hydrogen generation.
authors.affiliation: Department of Electrical and Electronic Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Malaysia.
authors.forename: Mohammad Reza
authors.initials: MR
authors.lastname: Maghami
authors.affiliation: Department of Electrical and Electronic Engineering, Faculty of Engineering, Islamic Azad University, Damghan Branch, Damghan, Iran.
authors.forename: Shahin Navabi
authors.initials: SN
authors.lastname: Asl
authors.affiliation: Department of Mechanical Engineering, Faculty of Engineering, University of Malaya (UM), 50603 Kuala Lumpur, Malaysia.
authors.forename: Mohammad Esmaeil
authors.initials: ME
authors.lastname: Rezadad
authors.affiliation: Research Support Unit, Centre of Research Services, Institute of Research Management and Monitoring (IPPP), University of Malaya (UM), Kuala Lumpur, Malaysia.
authors.forename: Nader
authors.initials: N
authors.lastname: Ale Ebrahim
authors.affiliation: Department of Electrical and Electronic Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Malaysia.
authors.forename: Chandima
authors.initials: C
authors.lastname: Gomes
keywords: Hydrogen generation; Hydrogen literature; Solar hydrogen generation; Water splitting