eprintid: 8016 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/00/80/16 datestamp: 2023-11-09 16:19:52 lastmod: 2023-11-09 16:19:52 status_changed: 2023-11-09 16:10:58 type: article metadata_visibility: show creators_name: Ud Din, I. creators_name: Shaharun, M.S. creators_name: Subbarao, D. creators_name: Naeem, A. title: Surface modification of carbon nanofibers by HNO3 treatment ispublished: pub keywords: Carbon nanofibers; Carboxylation; Gas adsorption; Gravimetric analysis; Nanofibers; Nitric acid; Oxidation; Surface treatment; Thermogravimetric analysis; X ray diffraction, Acid treated; Acid treatments; BET surface area; Carbon material; Fourier transform infrared; Nitric acid solutions; Nitric acid treatment; Nitrogen adsorption desorption isotherms, X ray photoelectron spectroscopy note: cited By 38 abstract: A convenient and one-step surface modification method was developed to introduce different functional groups on the surface of herringbone type carbon nanofibers (CNFs) by treating with nitric acid solution. The modified CNFs were characterized by various techniques such as X-ray diffraction (XRD), nitrogen adsorption�desorption isotherms (BET), thermo gravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy and Fourier transform infrared (FT-IR). The XRD studies revealed intensification of graphitization in CNFs as a function of nitric acid treatment. Similarly, the surface modification of CNFs led to enhance the BET surface area from of 112 to 152 m2/g. The XPS investigations indicated the existence of alcoholic (C�OH) and carbonyl (CdbndO) functional groups on the surface of modified CNFs. Moreover, FT-IR studies confirmed the generation of carboxylate, hydroxyl and alcoholic functional groups on the surface of acid-treated CNFs. © 2015 Elsevier Ltd and Techna Group S.r.l. date: 2016 publisher: Elsevier Ltd official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84947483896&doi=10.1016%2fj.ceramint.2015.08.054&partnerID=40&md5=a6b4f74545304c6a75d583227c5b804f id_number: 10.1016/j.ceramint.2015.08.054 full_text_status: none publication: Ceramics International volume: 42 number: 1 pagerange: 966-970 refereed: TRUE issn: 02728842 citation: Ud Din, I. and Shaharun, M.S. and Subbarao, D. and Naeem, A. (2016) Surface modification of carbon nanofibers by HNO3 treatment. Ceramics International, 42 (1). pp. 966-970. ISSN 02728842