Pd clusters supported on alkali titanate (Na- and K-titanate) nanobelts were synthesized and investigated for the catalytic HCHO oxidation at room temperature. The presence of interlayer alkali metal promoted the dispersion of Pd species and simultaneously made the Pd clusters more negatively charged, thus enhancing the catalytic performance for HCHO oxidation reaction at room temperature. Especially, Pd clusters with the smaller size and larger quantity of Pd⁰ supported on K-titanate nanobelts contributed to higher catalytic activity and stability, where nearly complete HCHO oxidation was achieved with a Pd loading of 1 wt% at ambient temperature.

中文翻译：

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钛酸碱纳米带负载的钯催化剂用于室温甲醛氧化

合成了钛酸碱金属盐（Na-和K-钛酸盐）纳米带上负载的Pd团簇，并研究了其在室温下对HCHO的催化氧化作用。层间碱金属的存在促进了Pd物种的分散，同时使Pd团簇带负电，从而增强了室温下HCHO氧化反应的催化性能。尤其是，负载在钛酸钾纳米带上的Pd簇具有更小的尺寸和更大的Pd ⁰簇，有助于提高催化活性和稳定性，其中在环境温度下以1 wt％的Pd负载量实现了几乎完全的HCHO氧化。