Uzundurukan, Arife

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https://hdl.handle.net/20.500.14411/7704
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U., Arife
Uzundurukan,A.
Uzundurukan, Arife
A., Uzundurukan
Arife, Uzundurukan
A.,Uzundurukan
U.,Arife
Job Title
Araştırma Görevlisi
Email Address
arife.saglam@atilim.edu.tr
Main Affiliation
Energy Systems Engineering
Status
Former Staff
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2

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11

SUSTAINABLE CITIES AND COMMUNITIES
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14

LIFE BELOW WATER
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6

CLEAN WATER AND SANITATION
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1

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5

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9

INDUSTRY, INNOVATION AND INFRASTRUCTURE
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16

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17

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LIFE ON LAND
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7

AFFORDABLE AND CLEAN ENERGY
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8

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4

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Scholarly Output

5

Articles

5

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20/0

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WoS Citation Count

215

Scopus Citation Count

227

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5

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5

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WoS Citations per Publication

43.00

Scopus Citations per Publication

45.40

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2

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International Journal of Hydrogen Energy3
International Journal of Energy Research1
Renewable Energy1
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Subject: Hydrolysis

Scholarly Output Search Results

Now showing 1 - 2 of 2
  • Thumbnail Image
    Article
    Citation - WoS: 37
    Citation - Scopus: 41
    Carbon Nanotube-Graphene Hybrid Supported Platinum as an Effective Catalyst for Hydrogen Generation From Hydrolysis of Ammonia Borane
    (Pergamon-elsevier Science Ltd, 2019) Uzundurukan, Arife; Devrim, Yilser
    In this study, we report the results of a kinetic study on the hydrogen (H-2) generation from the hydrolysis of ammonia borane (NH3BH3) catalyzed by Platinum supported on carbon nanotube-graphene hybrid material (Pt/CNT-G). Synthesized catalyst was characterized by TGA, XRD, CP-OES, TEM and SEM-EDX techniques. Characterization studies have shown that the CNT-G hybrid support material provides desired distribution of the Pt particles on the support material. The effect of various parameters such as catalyst loading, reaction temperature, effect of NaOH and the effect of NH3BH3 concentration are also determined. Experimental results showed that the Pt/CNT-G catalyst exhibited high catalytic activity on NH3BH3 hydrolysis reaction to release H-2. It has been found that Pt/CNT-G catalyst shows low activation energy of 35.34 kJ mol(-1) for hydrolysis reaction of NH3BH3. Pt/CNT-G catalyst also exhibited high catalytic activity with turnover frequency (TOF) of 135 (mol(H2)/mol(cat).-min). Therefore, the synthesized Pt/CNT-G catalyst is a potential candidate for enhanced H-2 generation through NH3BH3 hydrolysis. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
  • Thumbnail Image
    Article
    Citation - WoS: 61
    Citation - Scopus: 64
    Hydrogen Generation From Sodium Borohydride Hydrolysis by Multi-Walled Carbon Nanotube Supported Platinum Catalyst: a Kinetic Study
    (Pergamon-elsevier Science Ltd, 2019) Uzundurukan, Arife; Devrim, Yilser
    In this study, it is aimed to investigate hydrogen (H-2) generation from sodium borohydride (NaBH4) hydrolysis by multi-walled carbon nanotube supported platinum catalyst (Pt/MWCNT) under various conditions (0-0.03 g Pt amount catalyst, 2.58-5.03 wt % NaBH4, and 27-67 degrees C) in detail. For comparison, carbon supported platinum (Pt/C) commercial catalyst was used for H-2 generation experiments under the same conditions. The reaction rate of the experiments was described by a power law model which depends on the temperature of the reaction and concentrations of NaBH4. Kinetic studies of both Pt/MWCNT and Pt/C catalysts were done and activation energies, which is the required minimum energy to overcome the energy barrier, were found as 27 kJ/mol and 36 kJ/mol, respectively. Pt/ MWCNT catalyst is accelerated the reaction less than Pt/C catalyst while Pt/MWCNT is more efficient than Pt/C catalyst, they are approximately 98% and 95%, respectively. According to the results of experiments and the kinetic study, the reaction system based on NaBH4 in the presence of Pt/MWCNT catalyst can be a potential hydrogen generation system for portable applications of proton exchange membrane fuel cell (PEMFC). (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.