Pregledni rad
https://doi.org/10.17794/rgn.2022.5.2
CARBON-BASED RAW MATERIALS PLAY KEY ROLES IN TECHNOLOGY OF THE 21ST CENTURY: INDIAN CASE STUDIES
Željka Fiket
; Divison for Marine and Environmental Research, Ruđer Bošković Institute, HR-10000 Zagreb, Croatia
Binoy Kumar Saikia
; Coal & Energy Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India
Sanchita Chakravarty
; Analytical and Applied Chemistry Division, CSIR-National Metallurgical Laboratory, Jamshedpur 831007, India
Gordana Medunić
orcid.org/0000-0001-5261-3771
; University of Zagreb, Faculty of Science, Department of Geology, HR-10000 Zagreb, Croatia
Sažetak
Coal is a vital carbon-based raw material which is used in the production of various advanced nanomaterials. This particularly holds true for the relevant research and development trends in India. New more environmentally friendly processes are under development with respect to metallurgical coke making and quality enhancement of high-ash Indian coal. Compared with chemical and physical methods, beneficiation of high-ash coal and its combustion by-products with organic liquids (various natural oils) are much more superior in terms of costs, efficiency, and environmental implications. Nanodiamonds have emerged as a key platform for nanoscience and nanotechnology developments. Indian scientists have applied eco-friendly and cost-effective ultrasonic assisted wet-chemical method to low-quality NE Indian coal and the resulting nanodiamond particles could have a wide range of applications in the field of microelectronics, optoelectronics, and biosensing. Also, Indian scientists have been working on ultrasonic-assisted chemical synthesis of activated carbon from low-quality subbituminous coal and its preliminary evaluation towards supercapacitor applications. This article shows that coal is a versatile and valuable raw material which should be saved for future generations at all costs.
Ključne riječi
carbon; Indian high-ash coal; nanomaterials; supercapacitor; coal beneficiation
Hrčak ID:
287020
URI
Datum izdavanja:
7.12.2022.
Posjeta: 521 *