Chemical industry-Ruijin Technology

Address: Industrial Zone, Ruyang County, Luoyang City, Henan Province

Chemical industry

Mar 14,2025

Ⅰ、Catalytic properties and applications of indium oxide

　　‌1、Organic synthesis catalysis

　　Indium oxide serves as an efficient catalyst for organic reactions such as oxidative dehydrogenation and carbonylation, enhancing reaction selectivity and yield in pharmaceutical and fine chemical production

　　For example：

　　‌Oxidative coupling reaction：It facilitates C-C bond formation through surface oxygen vacancies, enabling efficient synthesis of drug intermediates

　　‌Hydrogenation reaction：By regulating In³⁺ active sites, indium oxide improves the binding efficiency between hydrogen and organic compounds, while lowering reaction activation energy

　　‌2、Environmental protection catalysis

　　‌Wastewater treatment：Indium oxide can catalytically degrade organic pollutants (such as phenol and dyes), and achieve water purification through photocatalytic or electrocatalytic oxidation.

　　‌Waste gas treatment：Because of the surface adsorption capacity, indium oxide can convert toxic gases such as NOₓ and VOCs into harmless gas (such as CO₂ and H₂O).

Ⅱ、Synergistic catalytic effect of indium tin oxide (ITO)

　　‌1、Photoelectrocatalysis

　　As a photoelectrode material, ITO exhibits excellent performance in hydrogen production through water photolysis.：

　　‌Wide bandgap characteristic (3.7 eV)：Enhance UV light absorption and improve the efficiency of photo-generated carrier separation

　　‌High conductivity：Sn doping improves electron mobility (15–50 cm²/V·s) and reduces interfacial resistance

　　‌2、Industrial catalyst carrier

　　As a catalyst carrier, the ITO thin film enhances the dispersibility and stability of active components (such as Pt and Pd) through the indium-tin synergistic effect, and is applied to chemical processes such as hydrogen production from methanol reforming.

Ⅲ、Catalytic assistance of tin oxide (SnO2)

　　‌1、Gas sensing and catalysis

　　Tin oxide-based materials are used for detecting gases such as CO and CH₄. The oxygen vacancies on their surface can activate the adsorption-dissociation process of gas molecules, possessing both sensing and catalytic oxidation functions.

　　‌2、Doping modification

　　Antimony (Sb)-doped SnO₂ enhances conductivity and serves as a conductive substrate for electrocatalysts used in the oxygen reduction reaction (ORR) in fuel cells

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Ceramics & Glass

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