Lithuanian Journal of Physics article / Lietuvos fizikos žurnalo straipsnis

EFFECT OF LOW-CONCENTRATION GADOLINIUM DOPING ON THE THERMAL PROPERTIES OF MWCNT COMPOSITES
Rashad G. Abaszade^a,b, Elvin M. Aliyev^c, Azer G. Mammadov^a, ‪Elmira A. Khanmamadova^a, Agali A. Guliyev^a, Fagan G. Aliyev^b, F.G. Abaszadeh^d, Tetiana O. Margitych^e, Emre Gür^f, and Maksym O. Stetsenko^g
^aAzerbaijan State Oil and Industry University, Baku, Azerbaijan
^bAzerbaijan University of Architecture and Construction, Baku, Azerbaijan
^cUniversity of Birmingham, Edgbaston, United Kingdom
^dNational Aviation Academy, Baku, Azerbaijan
^eKyiv Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine
^fEskisehir Osmangazi University, Eskisehir, Turkey
^gKey Laboratory of Optoelectronic Devices and Systems, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, PR China
Email: abaszada@gmail.com; stetsenkomax@gmail.com

Received 22 April 2025; revised 6 October 2025; accepted 7 October 2025

In this study,the thermal properties of multiwalled carbon nanotubes doped with 5 wt% gadolinium were analyzed. Thermogravimetric analysis/differential scanning calorimetry (TGA/DSC) and transmission electron microscopy were successfully employed for material characterization. Transformations in the TGA profiles of the synthesized carbon-based nanocomposite were investigated. The specific heat capacity value of that nanocomposite was attributed to the influence of Gd doping. For gadolinium-doped MWCNTs, a C_p value of 826.4 J/(kg·K) was observed at 630.4 K. These findings highlight the potential of rare-earth-doped carbon nanomaterials for use in thermal interface materials and other heat management applications in advanced electronics and energy systems.
Keywords: carbon nanotubes, gadolinium, TEM, TGA, specific heat capacity

NAUJI APIBENDRINTIEJI ERMITO POLINOMAI SU TRIMIS KINTAMAISIAIS, GAUTI KVANTINĖS OPTIKOS METODU, IR JŲ TAIKYMAI
Rashad G. Abaszade^a,b, Elvin M. Aliyev^c, Azer G. Mammadov^a, ‪Elmira A. Khanmamadova^a, Agali A. Guliyev^a, Fagan G. Aliyev^b, F.G. Abaszadeh^d, Tetiana O. Margitych^e, Emre Gür^f, Maksym O. Stetsenko^g

^aAzerbaidžano valstybinis naftos ir pramonės universitetas, Baku, Azerbaidžanas
^bAzerbaidžano architektūros ir statybos universitetas, Baku, Azerbaidžanas
^cBirmingamo universitetas, Edžbastonas, Birmingamas, Jungtinė Karalystė
^dNacionalinė aviacijos akademija, Baku, Azerbaidžanas
^eUkrainos nacionalinė mokslų akademija, Kyjivas, Ukraina
^fEskišechyro Osmangazi universitetas, Eskišechyras, Turkija
^gŠendženo universitetas, Šendženas, Kinija

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