Sengon wood-derived RGO supported Fe-based electrocatalyst with stabilized graphitic N-bond for oxygen reduction reaction in acidic medium. Ithenticate

Wulandhari Sudarsono, - and Wai Yin Wong, - and Kee Shyuan Loh, - and Edy Herianto Majlan, - and Nirwan Syarif, - and Kuan-Ying Kok, - and Rozan Mohamad Yunus, - and Kean Long Lim, - and Ikutaro Hamada, - (2023) Sengon wood-derived RGO supported Fe-based electrocatalyst with stabilized graphitic N-bond for oxygen reduction reaction in acidic medium. Ithenticate. Turnitin Universitas Sriwijaya. (Submitted)

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Abstract

This work reports utilised of RGO from Sengon wood biomass to support FeeNeC noble-free catalyst (FeeN-RGO), while also attempt to investigate the effect of pyrolysis stage on FeeN-RGO catalysts with four different nitrogen precursors towards the ORR activity in acidic medium. One- and two-step pyrolysis were performed at 900 C for 1 h and 2 h respectively to produce FeeN-RGO. This work revealed that two-step pyrolysis was able to remove the volatile components and hence forming more graphitised, stable graphitic-N and Fe-Nx, synergistically improve the ORR activity with highest onset potential of 0.83 V vs RHE and limiting current density of 5.33 mA cm2 reported on Fe-Pani-RGO 2py. An increase in the kinetic on Fe-Pani-RGO 2py with Tafel slope of 74 mV/dec operated at 80 C was reported. The mesoporous structure on RGO increases the stability by 8% and better methanol tolerance when compared to a benchmark Pt/C catalyst.

Item Type:	Other
Subjects:	#3 Repository of Lecturer Academic Credit Systems (TPAK) > Results of Ithenticate Plagiarism and Similarity Checker
Divisions:	08-Faculty of Mathematics and Natural Science > 47201-Chemistry (S1)
Depositing User:	Dr Nirwan Syarif
Date Deposited:	20 Jun 2023 02:17
Last Modified:	20 Jun 2023 02:17
URI:	http://repository.unsri.ac.id/id/eprint/108857

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