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He Q, Wang X, Liu Y, Kong W, Ren S, Liang Y, Tang M, Zhou S, Dong Y. The Enhancement of CO Oxidation Performance and Stability in SO 2 and H 2S Environment on Pd-Au/FeO X/Al 2O 3 Catalysts. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16103755. [PMID: 37241390 DOI: 10.3390/ma16103755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 05/04/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023]
Abstract
Carbon monoxide (CO) is a colourless, odourless, and toxic gas. Long-term exposure to high concentrations of CO causes poisoning and even death; therefore, CO removal is particularly important. Current research has focused on the efficient and rapid removal of CO via low-temperature (ambient) catalytic oxidation. Gold nanoparticles are widely used catalysts for the high-efficiency removal of high concentrations of CO at ambient temperature. However, easy poisoning and inactivation due to the presence of SO2 and H2S affect its activity and practical application. In this study, a bimetallic catalyst, Pd-Au/FeOx/Al2O3, with a Au:Pd ratio of 2:1 (wt%) was formed by adding Pd nanoparticles to a highly active Au/FeOx/Al2O3 catalyst. Its analysis and characterisation proved that it has improved catalytic activity for CO oxidation and excellent stability. A total conversion of 2500 ppm of CO at -30 °C was achieved. Furthermore, at ambient temperature and a volume space velocity of 13,000 h-1, 20,000 ppm CO was fully converted and maintained for 132 min. Density functional theory (DFT) calculations and in situ FTIR analysis revealed that Pd-Au/FeOx/Al2O3 exhibited stronger resistance to SO2 and H2S adsorption than the Au/FeOx/Al2O3 catalyst. This study provides a reference for the practical application of a CO catalyst with high performance and high environmental stability.
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Affiliation(s)
- Qingrong He
- School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China
- State Key Laboratory of NBC Protection for Civilian, Beijing 100083, China
| | - Xuwei Wang
- State Key Laboratory of NBC Protection for Civilian, Beijing 100083, China
| | - Yimeng Liu
- School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China
- State Key Laboratory of NBC Protection for Civilian, Beijing 100083, China
| | - Weimin Kong
- State Key Laboratory of NBC Protection for Civilian, Beijing 100083, China
| | - Shanshan Ren
- State Key Laboratory of NBC Protection for Civilian, Beijing 100083, China
| | - Yun Liang
- School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Min Tang
- School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Shuyuan Zhou
- School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China
- State Key Laboratory of NBC Protection for Civilian, Beijing 100083, China
| | - Yanchun Dong
- State Key Laboratory of NBC Protection for Civilian, Beijing 100083, China
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Benzaouak A, Touach N, Mahir H, Elhamdouni Y, Labjar N, El Hamidi A, El Mahi M, Lotfi EM, Kacimi M, Liotta LF. ZrP 2O 7 as a Cathodic Material in Single-Chamber MFC for Bioenergy Production. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3330. [PMID: 36234458 PMCID: PMC9565527 DOI: 10.3390/nano12193330] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/20/2022] [Accepted: 09/21/2022] [Indexed: 06/16/2023]
Abstract
The present work is the first investigation of the electrocatalytic performances of ZrP2O7 as a cathode in a single-chamber Microbial Fuel Cell (MFC) for the conversion of chemical energy from wastewater to bioelectricity. This catalyst was prepared by a coprecipitation method, then characterized by X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), ultraviolet-visible-near-infrared spectrophotometry (UV-Vis-NIR), and cyclic voltammetry analyses. The acid-basic characteristics of the surface were probed by using 2-butanol decomposition. The conversion of 2-butanol occurs essentially through the dehydrating reaction, indicating the predominantly acidic character of the solid. The electrochemical test shows that the studied cathode material is electroactive. In addition, the ZrP2O7 in the MFC configuration exhibited high performance in terms of bioelectricity generation, giving a maximum output power density of around 449 mW m-2; moreover, it was active for wastewater treatment, reducing the chemical oxygen demand (COD) charge to 50% after three days of reaction.
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Affiliation(s)
- Abdellah Benzaouak
- Laboratory of Spectroscopy, Molecular Modeling, Materials, Nanomaterials, Water and Environment, Environmental Materials Team, École Nationale Supérieure d’Arts et Métiers (ENSAM), Mohammed V University in Rabat, Rabat 10 000, Morocco
- Laboratory of Physical Chemistry of Materials, Catalysis and Environment, Department of Chemistry, Faculty of Sciences, Mohammed V University in Rabat, Rabat 10 000, Morocco
| | - Noureddine Touach
- Laboratory of Spectroscopy, Molecular Modeling, Materials, Nanomaterials, Water and Environment, Environmental Materials Team, École Nationale Supérieure d’Arts et Métiers (ENSAM), Mohammed V University in Rabat, Rabat 10 000, Morocco
| | - Hanane Mahir
- Laboratory of Physical Chemistry of Materials, Catalysis and Environment, Department of Chemistry, Faculty of Sciences, Mohammed V University in Rabat, Rabat 10 000, Morocco
| | - Youssra Elhamdouni
- Laboratory of Spectroscopy, Molecular Modeling, Materials, Nanomaterials, Water and Environment, Environmental Materials Team, École Nationale Supérieure d’Arts et Métiers (ENSAM), Mohammed V University in Rabat, Rabat 10 000, Morocco
| | - Najoua Labjar
- Laboratory of Spectroscopy, Molecular Modeling, Materials, Nanomaterials, Water and Environment, Environmental Materials Team, École Nationale Supérieure d’Arts et Métiers (ENSAM), Mohammed V University in Rabat, Rabat 10 000, Morocco
| | - Adnane El Hamidi
- Laboratory of Physical Chemistry of Materials, Catalysis and Environment, Department of Chemistry, Faculty of Sciences, Mohammed V University in Rabat, Rabat 10 000, Morocco
| | - Mohammed El Mahi
- Laboratory of Spectroscopy, Molecular Modeling, Materials, Nanomaterials, Water and Environment, Environmental Materials Team, École Nationale Supérieure d’Arts et Métiers (ENSAM), Mohammed V University in Rabat, Rabat 10 000, Morocco
| | - El Mostapha Lotfi
- Laboratory of Spectroscopy, Molecular Modeling, Materials, Nanomaterials, Water and Environment, Environmental Materials Team, École Nationale Supérieure d’Arts et Métiers (ENSAM), Mohammed V University in Rabat, Rabat 10 000, Morocco
| | - Mohamed Kacimi
- Laboratory of Physical Chemistry of Materials, Catalysis and Environment, Department of Chemistry, Faculty of Sciences, Mohammed V University in Rabat, Rabat 10 000, Morocco
| | - Leonarda Francesca Liotta
- Istituto per lo Studio dei Materiali Nanostrutturati (ISMN)-CNR, via Ugo La Malfa, 153, 90146 Palermo, Italy
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Cao T, Cheng J, Ma J, Yang C, Yao M, Liu F, Deng M, Wang X, Ren Y. Facile Synthesis of Microporous Carbons from Biomass Waste as High Performance Supports for Dehydrogenation of Formic Acid. NANOMATERIALS 2021; 11:nano11113028. [PMID: 34835792 PMCID: PMC8624553 DOI: 10.3390/nano11113028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 11/03/2021] [Accepted: 11/09/2021] [Indexed: 01/29/2023]
Abstract
Formic acid (FA) is found to be a potential candidate for the storage of hydrogen. For dehydrogenation of FA, the supports of our catalysts were acquired by conducting ZnCl2 treatment and carbonation for biomass waste. The texture and surface properties significantly affected the size and dispersion of Pd and its interaction with the support so as to cause the superior catalytic performance of catalysts. Microporous carbon obtained by carbonization of ZnCl2 activated peanut shells (CPS-ZnCl2) possessing surface areas of 629 m2·g−1 and a micropore rate of 73.5%. For ZnCl2 activated melon seed (CMS-ZnCl2), the surface area and micropore rate increased to 1081 m2·g−1 and 80.0%, respectively. In addition, the introduction of ZnCl2 also caused the increase in surface O content and reduced the acidity of the catalyst. The results represented that CMS-ZnCl2 with uniform honeycomb morphology displayed the best properties, and the as-prepared Pd/CMS-ZnCl2 catalyst afforded 100% hydrogen selectivity as well as excellent catalytic activity with an initial high turnover number (TON) value of 28.3 at 30 °C and 100.1 at 60 °C.
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Affiliation(s)
- Tingting Cao
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China; (T.C.); (J.C.); (J.M.); (C.Y.); (M.D.); (X.W.)
- Key Laboratory of Green Chemical and Clean Energy Technology, Guizhou University, Guiyang 550025, China
| | - Jinke Cheng
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China; (T.C.); (J.C.); (J.M.); (C.Y.); (M.D.); (X.W.)
- Key Laboratory of Green Chemical and Clean Energy Technology, Guizhou University, Guiyang 550025, China
| | - Jun Ma
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China; (T.C.); (J.C.); (J.M.); (C.Y.); (M.D.); (X.W.)
- Key Laboratory of Green Chemical and Clean Energy Technology, Guizhou University, Guiyang 550025, China
| | - Chunliang Yang
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China; (T.C.); (J.C.); (J.M.); (C.Y.); (M.D.); (X.W.)
- Key Laboratory of Green Chemical and Clean Energy Technology, Guizhou University, Guiyang 550025, China
| | - Mengqin Yao
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China; (T.C.); (J.C.); (J.M.); (C.Y.); (M.D.); (X.W.)
- Key Laboratory of Green Chemical and Clean Energy Technology, Guizhou University, Guiyang 550025, China
- Correspondence: (M.Y.); (F.L.); (Y.R.)
| | - Fei Liu
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China; (T.C.); (J.C.); (J.M.); (C.Y.); (M.D.); (X.W.)
- Key Laboratory of Green Chemical and Clean Energy Technology, Guizhou University, Guiyang 550025, China
- Correspondence: (M.Y.); (F.L.); (Y.R.)
| | - Min Deng
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China; (T.C.); (J.C.); (J.M.); (C.Y.); (M.D.); (X.W.)
- Key Laboratory of Green Chemical and Clean Energy Technology, Guizhou University, Guiyang 550025, China
| | - Xiaodan Wang
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China; (T.C.); (J.C.); (J.M.); (C.Y.); (M.D.); (X.W.)
- Key Laboratory of Green Chemical and Clean Energy Technology, Guizhou University, Guiyang 550025, China
| | - Yuan Ren
- Key Laboratory of Green Chemical and Clean Energy Technology, Guizhou University, Guiyang 550025, China
- Correspondence: (M.Y.); (F.L.); (Y.R.)
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