Preparation of Pd–B/palygorskite amorphous catalyst for the selective hydrogenation of o ‐chloronitrobenzene to o ‐chloroaniline. (1st June 2016)

• Record Type: Journal Article
• Authors: Wu, Mei; Xu, Ying; Jang, Jinlong; Ju, Jingxi; Zeng, Qingyun; Duanmu, Chuansong; Gu, Xu
• Is Part Of: Micro & nano letters. Volume 11:Number 6(2016)
• Page Start: 315
• Page End: 318
• Publication Date: 2016-06-01
• Subjects: palladium alloys -- boron alloys -- catalysis -- catalysts -- materials preparation -- clay -- hydrogenation -- reduction (chemical) -- X‐ray photoelectron spectra -- bonds (chemical) -- composite materials; PdB‐palygorskite amorphous catalyst preparation -- selective o‐chloronitrobenzene hydrogenation -- o‐chloroaniline -- Pd‐B amorphous alloy -- natural nanoclay palygorskite surface -- chemical reduction method -- dechlorination -- XPS analysis -- Pd atom electron density -- C‐Cl bond hydrogenolysis -- PdB; Nanotechnology -- Periodicals; Nanostructures -- Periodicals; Microtechnology -- Periodicals; 620.5
• DOI: 10.1049/mnl.2015.0395
• Languages: English
• ISSNs: 1750-0443

Abstract

Abstract : Pd–B amorphous alloy was successfully supported on the surface of natural nanoclay palygorskite (PAL) via a simple chemical reduction method. Compared with the conventional supported Pd catalyst, the Pd–B/PAL amorphous catalyst possessed the ultra‐high selectivity (100%) to o ‐chloroaniline ( o ‐CAN) in the hydrogenation of o ‐chloronitrobenzene ( o ‐CNB) to o ‐CAN and avoided the dechlorination of o ‐CNB. XPS analysis results indicated that PAL support could reduce the electron density of Pd atoms and suppressed the hydrogenolysis of C–Cl bond. Meanwhile, the Pd–B/PAL amorphous catalyst exhibited a good stability and is a prospective catalyst for the selective hydrogenation of CNB to CAN.