Development of electrocatalytic protonic ceramic membrane reactors, from novel ceramic materials discoveries to device fabrication and membrane reaction performance evaluation.• Development of high-performance protonic ceramic fuel cells from new ceramic synthesis to manufacture fuel cells.• Design and synthesize novel catalysts for converting methane to benzene.• Membrane reaction design for methane, CO2 conversion.

Discover novel photocatalysts for the photocatalysis of methane to valuable products• Development of flame synthesis method for new metal oxides.• Led to set up the catalytic system (from the installation of the light source, and reactor design to establish GC configuration) for photocatalysis of methane

Efficient cathode perovskite oxide catalysts for solid oxide electrolysis cells (SOEC).• Proposed doping strategy to introduce oxygen vacancies in the ceramics to improve the catalytic performance.• Proposed crystal phase control to fabricate active perovskite oxide composites.

Control synthesis of metastable noble metal nanostructures for environment/energy-applications • Led the development of photocatalysts for formaldehyde degradation. The catalyst has been commercialized.• Proposed the solvent or surfactant with a long n-alkyl chain can create diffusion-limited growth conditions to control the fractal nanostructures (Rh, and Pt-Ag alloy nanocrystals).• Demonstrated the transformation between cyclic penta-twinned and single-crystal nanostructures can be achieved by controlling the thermodynamical factors or the supersaturation of growth blocks.• Led the structure-dependent properties of as-prepared nanocrystals in electrocatalysis (methanol/formic acid/ethanol electrooxidation, HER/ORR, CO2 reduction), organocatalysis (styrene/phenol/nitrobenzene hydrogenation), thermocatalysis (CO oxidation, CO2 hydrogenation, syngas to ethanol) and photocatalysis.• Studied the electrocatalytic oxidation of the methanol/ ethanol process with in situ FT-IR.