Photothermal synergistic sintering (PTS) vs. conventional heat treatment (CHT)

Major Contributions
 

1. Established a solar-driven photothermal synergistic sintering (PTS) strategy that couples UV-induced metal–oxygen bond activation with localized photothermal lattice reconstruction, enabling non-equilibrium defect engineering beyond conventional heat treatment.

2. PTS rapidly generates oxygen-vacancy-rich hetero- and homophase oxides across Co₃O₄, CuO, NiO, MnO and NiCoMnO; Co₃O₄/CoO interfaces promote low-potential Co oxidation to high-valent CoOOH, and DFT shows optimized OH⁻ and HMFCA adsorption.

3. The PTS catalyst delivers 474 mA cm⁻² at 1.40 V vs. RHE for HMF electrooxidation, 2.5 times that of the conventionally treated catalyst, with Faradaic efficiency and FDCA yield above 95% over 50 cycles.

主要貢獻
 

1. 建立太陽能驅動的光熱協同燒結（PTS）策略：結合紫外光誘導的金屬–氧鍵活化與局部光熱晶格重構，突破傳統熱處理的平衡限制，實現非平衡缺陷工程。

2. PTS 可快速在 Co₃O₄、CuO、NiO、MnO 與 NiCoMnO 等氧化物中產生富氧空位的異相與同相結構；Co₃O₄/CoO 異相界面促進低電位下 Co 氧化為高價 CoOOH，DFT 顯示 OH⁻ 與 HMFCA 吸附更有利。

3. PTS 觸媒在 1.40 V vs. RHE 下 HMF 電氧化電流密度達 474 mA cm⁻²，為傳統熱處理觸媒的 2.5 倍，50 次循環中法拉第效率與 FDCA 產率皆高於 95%。