Facile Fabrication of Ce/V-Modified Multi-Channel TiO2 Nanotubes and Their Enhanced Selective Catalytic Reduction Performance.,Chemistry - An Asian Journal

当前位置： X-MOL 学术 › Chem. Asian J. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Facile Fabrication of Ce/V-Modified Multi-Channel TiO2 Nanotubes and Their Enhanced Selective Catalytic Reduction Performance.
Chemistry - An Asian Journal ( IF 3.5 ) Pub Date : 2019-12-30 , DOI: 10.1002/asia.201901535
Xiaosheng Huang _{1,

2} , Guodong Zhang ₁ , Zhicheng Tang _{1,

3}

Affiliation

To optimize one-dimensional (1D) TiO2 nanofibers, tailor-made multi-channel TiO2 nanotubes have been successfully fabricated by electrospinning technology. After loading with Ce and V, the CeVTi-tube catalyst exhibited a broad working temperature window and acceptable resistance to H2 O and SO2 for elimination of NOx . The corresponding analysis revealed that the multi-channel structure provided more surface adsorbed oxygen species and that the wall of nanotubes anchored active components efficiently, which was beneficial to improve the stability as well as dispersion of the active components. Besides, a synergistic effect between Ce and V easily occurred at the CeVTi-tube catalyst, and its reducibility was significantly improved since the electron transformation between Ce and V was dramatically enhanced. Consequently, the tailor-made multi-channel CeVTi-tube catalyst exhibited satisfied de-NOx efficiency at the temperature range of 220-460 °C. It seemed that the multi-channel TiO2 nanotubes hold great potential as an excellent carrier for SCR catalysts.

中文翻译：

Ce / V修饰的多通道TiO2纳米管的简便制备及其增强的选择性催化还原性能。

为了优化一维（1D）TiO2纳米纤维，已通过电纺技术成功制造了量身定制的多通道TiO2纳米管。用Ce和V填充后，CeVTi管催化剂显示出较宽的工作温度范围，并且对消除NOx的H2 O和SO2具有可接受的耐受性。相应的分析表明，多通道结构提供了更多的表面吸附氧种类，并且纳米管的壁有效地锚定了活性成分，这有利于提高活性成分的稳定性和分散性。此外，在CeVTi管催化剂上，Ce和V之间容易产生协同作用，并且由于Ce和V之间的电子转化显着增强，其还原性得到了显着改善。所以，量身定制的多通道CeVTi管催化剂在220-460°C的温度范围内显示出令人满意的脱氮效率。看来多通道TiO2纳米管作为SCR催化剂的优良载体具有巨大的潜力。

更新日期：2019-12-30

点击分享查看原文

点击收藏

阅读更多本刊最新论文