Major Contributions

1. Developed a highly efficient 2wt% Ir/TiO2 catalyst that demonstrates exceptional methane conversion performance at low temperatures (400-600°C), achieving high turnover frequency and low activation energy compared to existing literature.

2. Successfully identified and characterized the active sites through advanced spectroscopy and DFT calculations, revealing that both small Ir clusters and single atoms contribute to methane activation, with clusters showing superior activity.

3. Established the catalyst's excellent stability and resistance to coking during long-term operation, while maintaining high methane conversion and product selectivity under steam reforming conditions.


主要貢獻

1. 開發出高效能的2wt% 銥/二氧化鈦催化劑，在低溫條件下（400-600°C）展現優異的甲烷轉化性能，相較於現有文獻具有更高的周轉頻率和更低的活化能。

2. 透過先進光譜技術和密度泛函理論計算，成功鑑定並表徵活性位點，揭示小型銥金屬團簇和單原子皆具有甲烷活化能力，其中以團簇展現出更優異的活性。

3. 證實該催化劑在長期操作過程中具有優異的穩定性和抗積碳性，同時在蒸氣重組條件下維持高甲烷轉化率和產物選擇性。