In this report, CeO₂ nanorods (CeO₂NR) were first chemically etched by different amounts (0.6, 3 and 6 wt %) of NaBH₄, which were employed to understand the etching effect on the support structure, surface defects, and reducibility of modified CeO₂NR supports. The 6 wt % NaBH₄ etched CeO₂NR was further used as support materials to load transition‐metals (TM: Cu, Co, Ni, Fe and Mn) catalysts, in order to investigate the support etching effect on the reducibility and catalytic performance of CeO₂NR supported TM catalysts. In comparison with the catalytic performance of CeO₂NR supported TM catalysts in literature, the 6 wt % NaBH₄ etched CeO₂NR supported catalysts show clearly enhanced CO oxidation performance at lower temperature, which is mainly attributed to the created surface defects by boron doped CeO₂ surface during NaBH₄ chemical etching and strong metal‐support interaction.

中文翻译：

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CeO2纳米棒上的NaBH4表面改性支持的用于低温CO氧化的过渡金属催化剂

在本报告中，首先用不同量（0.6、3和6 wt％）的NaBH ₄对CeO ₂纳米棒（CeO ₂ NR）进行化学刻蚀，以了解刻蚀对支撑结构，表面缺陷和还原性的影响。改良的CeO ₂ NR支持。为了研究载体蚀刻对还原性和催化性能的影响，将6 wt％NaBH ₄蚀刻的CeO ₂ NR进一步用作负载过渡金属（TM：Cu，Co，Ni，Fe和Mn）催化剂的载体材料。 CeO ₂ NR负载的TM催化剂。与文献中CeO ₂ NR负载的TM催化剂的催化性能相比，NaBH为6 wt％_4种经蚀刻的CeO ₂ NR负载的催化剂在较低的温度下具有明显增强的CO氧化性能，这主要归因于在NaBH ₄化学蚀刻过程中掺硼的CeO ₂表面产生的表面缺陷以及强的金属-载体相互作用。