Response Surface Optimization of Multilayer Graphene Growth on Alumina-Supported Bimetallic Cobalt–Nickel Substrate

Autor:	Soraya Hosseini, Suraya Abdul Rashid, Mohd Nizar Hamidon, Ismayadi Ismail, Bamidele Victor Ayodele, May Ali Alsaffar, Faizah Md Yasin, Farahnaz Eghbali Babadi
Rok vydání:	2020
Předmět:	Multidisciplinary Materials science Central composite design Graphene 010102 general mathematics Substrate (chemistry) Chemical vapor deposition 01 natural sciences law.invention Volumetric flow rate symbols.namesake Crystallinity Chemical engineering law symbols Response surface methodology 0101 mathematics Raman spectroscopy
Zdroj:	Arabian Journal for Science and Engineering. 45:7455-7465
ISSN:	2191-4281 2193-567X
DOI:	10.1007/s13369-020-04586-4
Popis:	This study investigates the optimization of multilayer graphene (MLG) growth on Co–Ni/Al2O3 substrate. The MLG synthesized by chemical vapor deposition technique (CVD) was characterized using various instrument techniques. The surface area and pore volume of the MLG were estimated as ~ 642 m2/g and ~ 2.7 cm3/g, respectively. The Raman spectrometric analysis showed evidence of MLG. The effects of parameters such as temperature, Co–Ni composition and ethanol flow rate were investigated using response surface methodology (RSM) and central composite design. The maximum MLG yield of 77% was attained at optimum conditions of 800 °C, Co–Ni composition of 0.3/0.7 and ethanol flow rate of 11 ml/min. The analysis of variance (ANOVA) results showed that the RSM quadratic model is significant with a p value
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::136586716caa7c1ccae031067a8530f8 https://doi.org/10.1007/s13369-020-04586-4 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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