化工新型材料

化工新型材料 ›› 2026, Vol. 54 ›› Issue (3) : 162-168. DOI: 10.19817/j.cnki.issn1006-3536.2026.03.004

科学研究

Pt-α-SiW₁₁Ni/rGO复合材料的制备及其电催化析氢性能研究

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Preparation and electrocatalytic hydrogen precipitation properties of Pt-α-SiW₁₁Ni/rGO composite

Chen Guoqiang, Guo Jun, Dou Honghong, Xia Ziyue, Peng Yulu, An Kui

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Received		Published
2025-02-21		2026-03-20
Issue Date	Revised Date
2026-03-16	2025-02-21

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摘要

通过水热合成法合成了Ni取代的硅钨酸盐(α-SiW₁₁Ni),利用浸渍法在160℃空气气氛中制备α-SiW₁₁Ni负载Pt/还原氧化石墨烯(Pt-α-SiW₁₁Ni/rGO)复合材料,通过傅里叶变换红外光谱仪、X射线衍射仪、X射线光电子能谱仪、X射线能谱仪、扫描电子显微镜、透射电子显微镜、电感耦合等离子体质谱仪及热重分析仪对复合材料进行表征和分析,并研究了其析氢性能。结果表明:复合材料具有较好的热稳定性,Pt原子团簇可以稳定地锚定在复合材料表面;在1.0mol/L KOH电解液中,电流密度为10mA/cm²时对应的析氢反应过电位为146mV,塔菲尔斜率为73mV/dec。

Abstract

Ni-substituted silicotungstate (α-SiW₁₁Ni) was synthesized by hydrothermal synthesis,and then a α-SiW₁₁Ni loaded Pt/reduced graphene oxide composite material (Pt-α-SiW₁₁Ni/rGO) was prepared using impregnation method in air atmosphere at 160℃.Fourier transform infrared spectroscopy (FT-IR),X-ray diffraction (XRD),X-ray photoelectron spectroscopy (XPS),energy-dispersive X-ray spectroscopy (EDS),scanning electron microscope (SEM),transmission electron microscope (TEM),inductive coupled plasma-mass spectrometer (ICP-MS) and thermo-gravimetric analysis (TGA) were employed to characterize and analyze the composite,and its hydrogen evolution performance was also investigated.The results showed that the composite material had good thermal stability and the Pt atomic clusters could be stably fixed on the catalyst surface.In an alkaline solution of 1.0mol/L KOH,when the current density was 10mA/cm²,the corresponding overpotential for the hydrogen precipitation reaction was 146mV,with a Tafel slope of 73mV/dec.

关键词

Pt催化剂 / 杂多钨酸盐 / 金属-载体相互作用 / 析氢反应

Key words

Pt catalyst / heteropoly tungstate / metal-carrier interactions / hydrogen precipitation reaction

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Pt-α-SiW₁₁Ni/rGO复合材料的制备及其电催化析氢性能研究[J]. 化工新型材料, 2026, 54(3): 162-168 DOI:10.19817/j.cnki.issn1006-3536.2026.03.004

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基金资助

国家自然科学基金(21862005)

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