Past, present and future of materials’ applications for CO2 capture: A bibliometric analysis

The CO 2 emission, especially from the energy sector, has increased by 1.7% in recent years, which is an enormous increase. Therefore, various materials have been employed to capture the released CO 2 . Although many studies have also been conducted to review the state-of-the-art of CO 2 capture technology, a quantitative review of the development of this field is still a novelty. Keeping this in mind, the present study aims to quantitatively review the available literature on this technology that has been published during the period of 1970–2020, by applying bibliometric and content analysis techniques. The bibliometric analysis reveals that 62.68% of the total articles indexed in Web of Science are published in the last five years. International Journal of Greenhouse Gas Control has been identified as the highest contributing journal, with 9.97% and 8.02% contribution in publications and citations, respectively. Further, China and USA are the main research hubs of this field. Again, by using content analysis techniques, chemical fixation, cycloaddition, cyclic carbonates, epoxides and mixed-matrix membrane are determined as the hot topics of this field. Moreover, the application of nanotubes and nanoparticles can be a promising option in future research.