Catalytic hydrodechlorination of p-chloro-m-cresol and 2,4,6-trichlorophenol with Pd and Rh supported on Al-pillared clays

Promoted liquid-phase hydrodechlorination of chlorophenol over Raney Ni via controlling base: Performance, mechanism, and application

“…Liquidphase HDC of chlorophenols has been effectively catalyzed with supported noble metal (Rh, Au, Pt, Pd, etc.) catalysts (Descorme, 2017;Keane, 2011;Pizarro et al, 2015;Rong et al, 2013;Zhou et al, 2016). However, the high cost of these noble metal catalysts restricts their wide application in the HDC of chlorophenols (Xu et al, 2012).…”

Scale Up Pillaring: A Study of the Parameters That Influence the Process

“…Solutions prepared with these methods contain mostly three species: hydrated monomeric aluminum, the polyhydroxy cation [Al 13 O 4 (OH) 24 (H 2 O) 12 ] 7+ , also known as ε-Keggin ion or Al 13 , and polynuclear aluminum [ 18 , 19 , 20 ]. Some of these Al-pillared clays have been reported as support for active phases, such as metals, in catalytic reactions [ 21 , 22 , 23 ].…”

Convenient preparation of Pd/RGO catalyst for the efficient hydrodechlorination of various chlorophenols

“…Nowadays, various techniques have been adopted for the disposal of residual CPs, among which catalytic hydrodechlorination (HDC) has been demonstrated as a cost-effective and environmentfriendly technology. 3 The HDC of CPs using various heterogeneous catalysts containing noble metals (e.g., Pd, 1,[3][4][5][6] Rh, 2,[7][8][9][10][11] and Pt 2,7 ) has attracted tremendous interest due to its high reactivity.…”

“…Catalyst support plays a critical role in enhancing the activity of noble metals due to the improved dispersion of metal nanoparticles (NPs). Pd NPs deposited on conventional carriers, i.e., active carbon, 12 Al 2 O 3 2,8 and pillared clays, 7,9 have been tested as catalysts for CPs degradation. Recently, graphene has been identified as an excellent stabilizer 11 due to its excellent tolerance to HCl and high ability to improve the dispersion of metal NPs.…”