Protonated Pt/TiO₂ Catalyst

High H₂ at Neutral pH

Protonation-regulated dual Pt step/kink and terrace sites enable thermo-photo reforming of lignocellulose at 90 °C and pH 7.

Yi, Qi · Wu, Weidong · Yutao, Pan · Bowen, Liu · Qiu, Xueqing · Qin, Yanlin

Applied Catalysis B: Environmental 2026

Specifications

H₂ evolution rate (α-cellulose)

{'zh': '3088', 'en': '3088'} μmol H₂ g⁻¹ catalyst h⁻¹

H₂ evolution rate (hemicellulose)

{'zh': '7064', 'en': '7064'} μmol H₂ g⁻¹ catalyst h⁻¹

H₂ evolution rate (lignin)

{'zh': '1238', 'en': '1238'} μmol H₂ g⁻¹ catalyst h⁻¹

Advantages

Works at neutral pH

Dual active sites synergistically promote biomass oxidation and H₂ evolution without added acid/base, reducing corrosion and separation costs.

High H₂ evolution rates

Achieves 7064 μmol H₂ g⁻¹ catalyst h⁻¹ for hemicellulose at 90 °C and pH 7, an order of magnitude higher than typical photocatalysis.

Synergistic thermal–photo activation

Thermal and photo activation synergize; the 3D mesoporous framework accelerates substrate diffusion, reducing mass transfer limitations.

Applications

• Lignocellulose H₂ Production：Directly produces H₂ from lignocellulose, reducing pretreatment steps.
• Biomass Reforming：Reforms biomass to H₂ and value-added chemicals at neutral pH.
• Thermo-Photocatalysis：Thermal and photo energy synergize to boost reaction efficiency.
• Green H₂ Production：Produces green H₂ from renewable biomass without acid/base additives.
• Solar Fuels：Converts solar energy to H₂ fuel, enabling solar-to-fuel conversion.