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Synthesis and Characterization of Rh/B–TNTs as a Recyclable Catalyst for Hydroformylation of Olefin Containing –CN Functional Group

College of Chemistry, Nankai University, Tianjin 300071, China
The Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, China
Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, China
Author to whom correspondence should be addressed.
Nanomaterials 2018, 8(10), 755;
Received: 7 September 2018 / Revised: 19 September 2018 / Accepted: 20 September 2018 / Published: 25 September 2018
(This article belongs to the Special Issue Advances in Heterocatalysis by Nanomaterials)
PDF [3396 KB, uploaded 26 September 2018]


The TiO2-based nanotubes (TNTs, B–TNTs) of different surface acidities and their supported Rh catalysts were designed and synthesized. The catalysts were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectrometer (XPS), tempera–ture–programmed desorption of ammonia (NH3–TPD), atomic emission spectrometer (ICP), and Brunauer–Emmett–Tellerv (BET) surface-area analyzers. Images of SEM and TEM showed that the boron-decorated TiO2 nanotubes (B–TNTs) had a perfect multiwalled tubular structure; their length was up to hundreds of nanometers and inner diameter was about 7 nm. The results of NH3-TPD analyses showed that B–TNTs had a stronger acid site compared with TNTs. For Rh/TNTs and Rh/B–TNTs, Rh nanoparticles highly dispersed on B–TNTs were about 2.79 nm in average diameter and much smaller than those on TNTs, which were about 4.94 nm. The catalytic performances of catalysts for the hydroformylation of 2-methyl-3-butennitrile (2M3BN) were also evaluated, and results showed that the existence of B in Rh/B–TNTs had a great influence on the catalytic performance of the catalysts. The Rh/B–TNTs displayed higher catalytic activity, selectivity for aldehydes, and stability than the Rh/TNTs. View Full-Text
Keywords: B-doped; Rh; TiO2 nanotube; hydroformylation; 2-methyl-3-butennitrile; functionalized olefin B-doped; Rh; TiO2 nanotube; hydroformylation; 2-methyl-3-butennitrile; functionalized olefin

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Su, P.; Liu, X.; Chen, Y.; Liu, H.; Zhu, B.; Zhang, S.; Huang, W. Synthesis and Characterization of Rh/B–TNTs as a Recyclable Catalyst for Hydroformylation of Olefin Containing –CN Functional Group. Nanomaterials 2018, 8, 755.

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