Preparation and Catalytic Hydrodechlorination Property of Nano Bimetallic Catalyst Pd–Ni/γAl<sub>2</sub>O<sub>3</sub>–SiO<sub>2</sub>
Pd–Ni bimetallic catalyst supported on a composite carrier of γAl<sub>2</sub>O<sub>3</sub> and SiO<sub>2</sub> was prepared by chemical precipitation methodology enhanced with an ultrasonic wave. In the present paper, the influence of dispersant, carrier, ultrason...
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MDPI AG
2022-03-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/12/4/370 |
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| author | Yalong Liao Yiyang Wang Yu Zhang |
| author_facet | Yalong Liao Yiyang Wang Yu Zhang |
| author_sort | Yalong Liao |
| collection | DOAJ |
| description | Pd–Ni bimetallic catalyst supported on a composite carrier of γAl<sub>2</sub>O<sub>3</sub> and SiO<sub>2</sub> was prepared by chemical precipitation methodology enhanced with an ultrasonic wave. In the present paper, the influence of dispersant, carrier, ultrasonic time and intensity on the dechlorination property of the catalysts obtained are investigated. The appearance, morphology and structure of the prepared catalysts were characterized using X-ray diffraction (XRD), scanning transmission electron microscopy (STEM), N<sub>2</sub> adsorption–desorption isotherm and X-ray photoelectron spectroscopy spectrometer (XPS). The chemical composition of active gradients in the catalysts was tested with inductively coupled plasma-atomic emission spectrometry (ICP-AES). The metal dispersion and mean particle size of the metallic phase of the prepared catalysts were also determined with CO chemisorption. Results indicate that a nano bimetal Pd–Ni catalyst on an average particle size of 2.45 nm with a distribution range of 1–7 nm supported on a composite carrier of γAl<sub>2</sub>O<sub>3</sub> and SiO<sub>2</sub> can be effectively prepared, and that the chlorine content of shellac dechlorinated with the obtained catalyst is 0.18 wt%, which is lower than that reported in the previous literature, indicating the perfect dechlorination property of the catalyst. |
| first_indexed | 2024-03-09T11:01:58Z |
| format | Article |
| id | doaj.art-2e3f5eed120043a0b3d2810bd49f52fd |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-09T11:01:58Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-2e3f5eed120043a0b3d2810bd49f52fd2023-12-01T01:10:13ZengMDPI AGCatalysts2073-43442022-03-0112437010.3390/catal12040370Preparation and Catalytic Hydrodechlorination Property of Nano Bimetallic Catalyst Pd–Ni/γAl<sub>2</sub>O<sub>3</sub>–SiO<sub>2</sub>Yalong Liao0Yiyang Wang1Yu Zhang2Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaFaculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaFaculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaPd–Ni bimetallic catalyst supported on a composite carrier of γAl<sub>2</sub>O<sub>3</sub> and SiO<sub>2</sub> was prepared by chemical precipitation methodology enhanced with an ultrasonic wave. In the present paper, the influence of dispersant, carrier, ultrasonic time and intensity on the dechlorination property of the catalysts obtained are investigated. The appearance, morphology and structure of the prepared catalysts were characterized using X-ray diffraction (XRD), scanning transmission electron microscopy (STEM), N<sub>2</sub> adsorption–desorption isotherm and X-ray photoelectron spectroscopy spectrometer (XPS). The chemical composition of active gradients in the catalysts was tested with inductively coupled plasma-atomic emission spectrometry (ICP-AES). The metal dispersion and mean particle size of the metallic phase of the prepared catalysts were also determined with CO chemisorption. Results indicate that a nano bimetal Pd–Ni catalyst on an average particle size of 2.45 nm with a distribution range of 1–7 nm supported on a composite carrier of γAl<sub>2</sub>O<sub>3</sub> and SiO<sub>2</sub> can be effectively prepared, and that the chlorine content of shellac dechlorinated with the obtained catalyst is 0.18 wt%, which is lower than that reported in the previous literature, indicating the perfect dechlorination property of the catalyst.https://www.mdpi.com/2073-4344/12/4/370bimetallic catalystultrasonic enhancementcatalytic hydrodechlorinationnanomaterials |
| spellingShingle | Yalong Liao Yiyang Wang Yu Zhang Preparation and Catalytic Hydrodechlorination Property of Nano Bimetallic Catalyst Pd–Ni/γAl<sub>2</sub>O<sub>3</sub>–SiO<sub>2</sub> Catalysts bimetallic catalyst ultrasonic enhancement catalytic hydrodechlorination nanomaterials |
| title | Preparation and Catalytic Hydrodechlorination Property of Nano Bimetallic Catalyst Pd–Ni/γAl<sub>2</sub>O<sub>3</sub>–SiO<sub>2</sub> |
| title_full | Preparation and Catalytic Hydrodechlorination Property of Nano Bimetallic Catalyst Pd–Ni/γAl<sub>2</sub>O<sub>3</sub>–SiO<sub>2</sub> |
| title_fullStr | Preparation and Catalytic Hydrodechlorination Property of Nano Bimetallic Catalyst Pd–Ni/γAl<sub>2</sub>O<sub>3</sub>–SiO<sub>2</sub> |
| title_full_unstemmed | Preparation and Catalytic Hydrodechlorination Property of Nano Bimetallic Catalyst Pd–Ni/γAl<sub>2</sub>O<sub>3</sub>–SiO<sub>2</sub> |
| title_short | Preparation and Catalytic Hydrodechlorination Property of Nano Bimetallic Catalyst Pd–Ni/γAl<sub>2</sub>O<sub>3</sub>–SiO<sub>2</sub> |
| title_sort | preparation and catalytic hydrodechlorination property of nano bimetallic catalyst pd ni γal sub 2 sub o sub 3 sub sio sub 2 sub |
| topic | bimetallic catalyst ultrasonic enhancement catalytic hydrodechlorination nanomaterials |
| url | https://www.mdpi.com/2073-4344/12/4/370 |
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