Improvement of oxygen reduction reaction in the fuel cell by using aluminum and zinc layered double hydroxide nanoelectrocatalysts

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Kowsari Hamed; MEHRPOOYA MEHDI; POURFAYAZ FATHOLLAH

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Journal: Journal of Applied Research in Chemistry Year:2020 | Volume:14 | Issue:1 Page(s): 147-156

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Information Journal Paper

Title

Improvement of oxygen reduction reaction in the fuel cell by using aluminum and zinc layered double hydroxide nanoelectrocatalysts

Author(s)

Kowsari Hamed | MEHRPOOYA MEHDI | POURFAYAZ FATHOLLAH | Issue Writer Certificate

Keywords

Oxygen reduction reaction )ORR(Q1

Non-metallic electrocatalystsQ1

Layered double hydroxides (LDH)Q1

Graphene oxide functionalizationQ1

Abstract

In order to develop efficient and low-cost non-metallic electrocatalysts for oxygen reduction reaction, in this study, a combination of carbon-based layered double hydroxide has been utilized. Thus, graphene oxide (GO) firstly was reduced and functionalized with nitrogen and sulfur atoms (N, S-rGO). Then, aluminum and zinc layered double hydroxide (ZnAl-LDH) were deposited on graphene oxide by use of the hydrothermal method. The structure, composition, morphology, and electrocatalytic activity of ZnAl-LDH/N, S-rGO compound were investigated in oxygen reduction reaction )ORR( by employing physical and electrochemical analyses. The results were compared with the electrocatalytic performance of commercial 20% Pt/C catalyst in the oxygen reduction reaction. According to the results of the physical experiments, in addition to the uniformity and the correct depositing of the synthesized electrocatalyst, the particle size also reached the nanometer range. According to the electrochemical results, the ZnAl-LDH/N, SrGO electrocatalyst had significant electrochemical activity and its function was very close to the commercial Pt/C 20% catalyst. These results indicate a good synergistic effect between N, S-rGO, and ZnAl-LDH. The onset of this sample was-0. 01 V. The electrocatalytic stability was favorable in the alkaline medium. It can be concluded that hybrids of layered double hydroxide )LDHs( and carbon bases improve the electrical conductivity, electrocatalytic activity, active surface, and stability for the oxygen reduction reaction.

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APA: Copy

Kowsari, Hamed, MEHRPOOYA, MEHDI, & POURFAYAZ, FATHOLLAH. (2020). Improvement of oxygen reduction reaction in the fuel cell by using aluminum and zinc layered double hydroxide nanoelectrocatalysts. JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC), 14(1 ), 147-156. SID. https://sid.ir/paper/413409/en

Vancouver: Copy

Kowsari Hamed, MEHRPOOYA MEHDI, POURFAYAZ FATHOLLAH. Improvement of oxygen reduction reaction in the fuel cell by using aluminum and zinc layered double hydroxide nanoelectrocatalysts. JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC)[Internet]. 2020;14(1 ):147-156. Available from: https://sid.ir/paper/413409/en

IEEE: Copy

Hamed Kowsari, MEHDI MEHRPOOYA, and FATHOLLAH POURFAYAZ, “Improvement of oxygen reduction reaction in the fuel cell by using aluminum and zinc layered double hydroxide nanoelectrocatalysts,” JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC), vol. 14, no. 1 , pp. 147–156, 2020, [Online]. Available: https://sid.ir/paper/413409/en

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