<trans-title xml:lang="en">Pt-Fe/GO Nanocatalysts: Preparation and Electrocatalytic Performance on Ethanol Oxidation</trans-title>

Zhenyu XIN; Ruihua GUO; Tuoya WUREN; Yan WANG; Shengli AN; Guofang ZHANG; Lili GUAN

doi:10.15541/jim20240402

Journal of Inorganic Materials, Volume. 40, Issue 4, 379(2025)

Pt-Fe/GO Nanocatalysts: Preparation and Electrocatalytic Performance on Ethanol Oxidation

Zhenyu XIN^1,2,3, Ruihua GUO^1,2,3、*, Tuoya WUREN^1,2,3, Yan WANG⁴, Shengli AN^1,2,3, Guofang ZHANG¹, and Lili GUAN^1,2

Author Affiliations

¹1. School of Material and Metallurgy, Inner Mongolia University of Science & Technology, Baotou 014010, China

²2. Inner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices, Inner Mongolia University of Science & Technology, Baotou 014010, China

³3. Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources, Ministry of Education, Inner Mongolia University of Science & Technology, Baotou 014010, China

⁴4. Baotou Research Institute of Rare Earths, Baotou 014020, China

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Figures & Tables(14)

S1. Raman spectra of catalysts

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1. (a) XRD patterns of catalysts; (b) Raman spectra of Pt/GO and PtFe_1/3/GO catalysts

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S2. ICP-OES result of PtFe_1/3/GO catalyst

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2. (a) Surface scaning TEM image, (b-e) EDS elemental mappings and (f) SAED pattern of PtFe_1/3/GO catalyst

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3. XPS spectra of catalysts

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S3. TEM, HRTEM images and particle size distribution histograms of Pt/GO and PtFe_x/GO catalysts

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S4. Variable temperature cyclic voltammetry curves of catalysts

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4. (a) Active surface area curves, (b) cyclic voltammetry curves, (c) Tafel slopes, (d) I-t curves, and (e) CO dissolution curves for different catalyst samples; (f) Peak current density of this work compared with literature^{[6,33⇓⇓⇓ -37]}

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5. (a) Variable temperature cyclic voltammetry fitting curves and (b) depletion cyclic voltammetry fitting curves for different catalysts

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S5. Attenuated cyclic voltammetry curves of catalysts

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S6. TEM images of PtFe_1/3/GO after cyclic testing

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S7. (a) TEM, (b) HRTEM images and (c) particle size distribution histogram of PtFe_1/3/GO catalyst after cyclic testing

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Table 1. Comparison of performance of Pt-catalysts in this work and in literature

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Table 1. Comparison of performance of Pt-catalysts in this work and in literature

Sample	Active area/(m²·g^-1)	Peak current density/(A·g^-1)	Steady-state current density/(A·g^-1)	Ref.
PtFe_1/3/GO	69.84	858.42	194.80	This Work
PtNiCeO₂/C	90.41	837.67	178.33	[S1]
Pt/Fe₂P	80	721	-	[S2]
Pt-Sn/NC-E	121.5	81.25	-	[S3]
SnO₂@PtRhNi	18	90	-	[S4]
Pt-CeO₂/TiNNTs	-	670	-	[S5]
NP-Pt-Si	-	785.23	87.56	[S6]

Table 1. Fitting results of Pt(0) and Pt(II) contents in catalysts
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Table 1. Fitting results of Pt(0) and Pt(II) contents in catalysts
Catalyst Pt(0)/eV Relative ratio/% Pt(II)/eV Relative ratio/%
Pt/C(JM) 71.56, 74.94 61.22 72.39, 76.28 38.78
Pt/GO 71.30, 74.77 56.10 71.97, 76.50 43.89
PtFe_1/3/GO 71.25, 74.63 57.41 71.87, 75.17 42.59

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Zhenyu XIN, Ruihua GUO, Tuoya WUREN, Yan WANG, Shengli AN, Guofang ZHANG, Lili GUAN. Pt-Fe/GO Nanocatalysts: Preparation and Electrocatalytic Performance on Ethanol Oxidation[J]. Journal of Inorganic Materials, 2025, 40(4): 379

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