03019ntm a2200373 i 4500 vtls000102936 KUKTEM 20251117113350.0 180207s2017 my a f am 000 0 eng d THE0001053(Local) 201905171312 nazirah 201802201110 saini 201802071126 saini UMP eng UMP rda FKKSA .Z37 2017 r Bc. Muhamad Zarif Anuar, author. Effects of processing parameters on production of graphene by mechanical exfoliation / Muhamad Zarif Anuar Kuantan, Pahang : UMP, 2017 © 2017 xv, 74 pages : illustrations (some color) ; 30 cm. + 1 CD-ROM text rdacontent text rdacontent unmediated rdamedia computer rdamedia volume rdacarrier computer disc rdacarrier text file PDF rda Faculty of Chemical & Natural Resources Engineering Project Paper (Bachelor of Chemical Engineering) -- Universiti Malaysia Pahang – 2017 Includes bibliographical references Graphene, a monolayer form of carbon with two dimensional honeycomb lattices (sp2 Hybridization) has shown excellent mechanical, electrical, thermal and optical properties. It is a promising component for many applications in the fields of electronics, composites, sensors as well as energy storage and conversion devices. These engineering applications require availability of graphene on the mass scale and thus suitable processes are necessary for its production down to few sheets level. In the present work, the objective is to study the effect of processing parameter on preparation of graphene at large scale by liquid phase exfoliation of graphite assisted by ultra sound to promote the intercalation and expansion of graphite by using homogenizer. Water and tea polyphenol was choose and act as a dispersion agent and antioxidant. From the result, it is found that the graphene dispersion concentration is increased when the sonication time and power increased with the highest concentration of 1.0699 mg/ml. But, by controlling the centrifuged speed, the result shows no influenced on dispersion concentration. In Addition, the size of the sheets also become smaller when increasing sonication time and power. However, from the XRD analysis, it can be conclude that the graphite only partially exfoliated with the stack of several or tens of single layer graphite. Therefore, by controlling LPE critical parameter likes sonication power, sonication time and centrifuged speed, graphene can produce at high scale. Faculty of Chemical & Natural Resources Engineering Dissertations Universities and Colleges Dissertations Theses 0 0 0 1 10000 10000 2019-09-04 0 FKKSA .Z37 2017 r Bc. 0000122268 2019-09-04 00:00:00 1 2019-09-04 PSM 0 0 0 1 10000 10000 2019-09-04 0 CD 11214 | FKKSA .Z37 2017 r Bc. 0000122269 2019-09-04 00:00:00 1 2019-09-04 PSM VIRTUA40 7431 7437 VTLSSORT0080*0200*0400*0900*1000*2450*2640*2641*3000*3360*3361*3370*3371*3380*3381*3470*5000*5020*5040*5200*6100*6500*6501*9992