SAFITRI, DIAH AYU (2017) ANALISA PENGARUH DOPING NITROGEN TERHADAP SIFAT KAPASITIF SUPERKAPASITOR BERBAHAN GRAPHENE. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Kebutuhan manusia akan barang elektronik semakin
meningkat, sehingga meningkat pula kebutuhan akan media
penyimpan listrik. Salah satu media penyimpan energy yaitu
kapasitor. Electric Double Layer Capacitor (EDLC) merupakan
superkapasitor yang memiliki waktu hidup yang lebih lama, rapat
daya dan kecepatan charging-discharging tinggi. Graphene telah
banyak dieksplorasi sebagai material untuk EDLC, salah satunya
yaitu dengan pendopingan. Penelitian ini bertujuan untuk
menganalisa pengaruh doping nitrogen terhadap struktur dan
morfologi serta pengaruh doping nitrogen terhadap sifat kapasitif
dari elektroda superkapasitor berbahan Graphene. Sintesis
graphene diawali dari grafit yang dioksidasi menjadi grafit oksida
dengan metode Hummer. Grafit oksida lalu direduksi dengan
metode hydrotermal menjadi graphene. Penelitian ini
memvariasikan doping nitrogen dengan penambahan NH4OH 0.1
ml, 0.3 ml dan 1 ml. Material yang disintesis ini dikarakterisasi
menggunakan XRD, SEM, EDS, Pengujian FPP, dan FTIR. Dari
hasil karakterisasi menunjukkan bahwa material yang disintesis
adalah graphene. Sifat kapasitif Elektroda diukur dengan
melakukan uji Cyclic Voltametry (CV) dengan rentang scan rate
5, 10, 50 dan 100 mV/s. Dari hasil penelitian didapatkan doping
nitrogen pada graphene yang paling optimal adalah dengan
penambahan NH4OH 0.3 ml yaitu 5.2%at dengan nilai
kapasitansi sebesar 208.47 F/g.
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The level of demand for energy is increasing so also
increases the demand for electricity storage media. Lots of energy
storage media that already exist which is capacitor. Electric
Double Layer Capacitor (EDLC) is a supercapacitor that has a
longer life, power density and high-speed charging-discharging.
Graphene has been widely explored as a material for EDLC, one
of which is with dopped. This study aimed to analyze the effect of
nitrogen dopant on the structure and morphology as well as the
nitrogen dopant influence on the capacitive properties of
Graphene-based supercapacitor electrode. Synthesis of graphene
begins by oxidized graphite into graphite oxide by Hummer
methods. Graphite oxide then reduced by hydrotermal process
into graphene. This study vary the dopant nitrogen with variations
NH4OH 0.1 ml, 0.3 ml and 1 ml. These synthesized materials
have been characterized by XRD, SEM, FTIR, EDS, FTIR, and
Conductivity Testing. From the characterized results shows that
synthesize material was graphene. The capacitive properties of
electrodes are measured by Cyclic voltammetry (CV) test with a
scan rate range of 5, 10, 50 and 100 mV / s. From the results, the
most optimal addition of nitrogen dopt in Graphene was 5.12% at
N with a capacitance value of 208.47 F / g.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | Graphene, kapasitansi, superkapasitor, doping, nitrogen, capacitance, supercapacitors, dopant |
| Subjects: | T Technology > TP Chemical technology > TP255 Electrochemistry, Industrial. |
| Divisions: | Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | - DIAH AYU SAFITRI |
| Date Deposited: | 23 Feb 2017 07:26 |
| Last Modified: | 05 Mar 2019 04:42 |
| URI: | http://repository.its.ac.id/id/eprint/1921 |
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