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Catalysts 2018, 8(9), 378; https://doi.org/10.3390/catal8090378

The Preparation of Pd/Foam-Ni Electrode and Its Electrocatalytic Hydrodechlorination for Monochlorophenol Isomers

1
School of Environmental and Chemical Engineering, Tianjin Polytechnic University, State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin 300387, China
2
Key Laboratory of Western China’s Environmental Systems (Ministry of Education), Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
3
Urban and Rural Construction Institute, Hebei Agricultural University, Baoding071001, China
*
Authors to whom correspondence should be addressed.
Received: 21 August 2018 / Revised: 1 September 2018 / Accepted: 3 September 2018 / Published: 5 September 2018
(This article belongs to the Special Issue Platinum-Free Electrocatalysts)
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Abstract

Noble metal palladium modified foamed nickel electrode (Pd/foam-Ni) was prepared by electrodeposition method. The fabricated electrode showed better catalytic performance than the Pd/foam-Ni prepared by conventional electroless deposition. The catalysts were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and transmission electron microscopy (TEM). Electrocatalytic activity of the Pd/Ni was studied for the hydrodechlorination of monochlorophenol isomers. The Pd/Ni exhibited good catalytic activity for 3-chlorophenol (3-CP). Complete decomposition of chlorophenol isomers could be achieved within 2 h, and the hydrodechlorination process conformed to the pseudo-first-order kinetic model. It showed a supreme stability after recycling for 5 times. The Pd/Ni exhibited a promising application prospect with high effectiveness and low Pd loading. View Full-Text
Keywords: Pd nanoparticles; electrodeposition; nickel foam; hydrodechlorination (ECH); monochlorophenol isomers; kinetic Pd nanoparticles; electrodeposition; nickel foam; hydrodechlorination (ECH); monochlorophenol isomers; kinetic
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Li, J.; Wang, H.; Wang, L.; Ma, C.; Luan, C.; Zhao, B.; Zhang, Z.; Zhang, H.; Cheng, X.; Liu, J. The Preparation of Pd/Foam-Ni Electrode and Its Electrocatalytic Hydrodechlorination for Monochlorophenol Isomers. Catalysts 2018, 8, 378.

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