Query：
学者姓名：戴洪兴
Refining：
Year
Type
Indexed by
Source
Complex
Co-Author
Language
Clean All
Abstract ：
Industrial flue gas has a great impact on the atmosphere environment and human health, and its emission temperatures are usually below 180 degrees C, which needs a new technology that can catalyze the removal of the multicomponent VOCs over high-performance catalysts in the presence of ozone. In this work, we prepared the Pt/CeO2 catalysts with different morphologies of Pt particles and investigated their catalytic performance for the ozonization of mixed VOCs (i.e., toluene and chlorobenzene (CB)). Among all of the as-prepared samples, Pt NRs/CeO2 with nanorod-like Pt particles showed excellent catalytic performance for the ozonization of toluene and CB. The T-50% (the temperature at VOC conversion = 50%) values for toluene and CB ozonization were 40 and 48 degrees C at a space velocity of 40,000 mL g(-1) h(-1), respectively. The results of characterization revealed that the reactive oxygen species involved in the VOC ozonization were mainly the O-2(-) and O-2(2-) species, surface oxygen vacancies of CeO2 were the active sites for the conversion of ozone to the reactive oxygen species, and the O-2(-) species was the mainly active oxygen species in the low-temperature VOC oxidation. Furthermore, partial reactive oxygen species reacted with the Ptn+ species to generate more amount of the Pt-0 species, and the metallic platinum species was the main active site for the adsorption and activation of toluene and CB. The chemisorbed VOCs at the Pt-0 sites reacted with the reactive oxygen species at the interface of Pt and CeO2, resulting in the excellent low-temperature catalytic activity. Compared with the reaction without ozone participation, we find that the participation of ozone can not only decrease the reaction temperature but also reduce the production of toxic byproducts. We are sure that the Pt/CeO2 catalyst is promising in practical application for elimination of the VOCs from industrial flue gas.
Keyword ：
supported platinum catalyst supported platinum catalyst ozonization ozonization volatile organic compounds volatile organic compounds VOC mixtureremoval VOC mixtureremoval reactiveoxygen species reactiveoxygen species
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wang, Jia , Liu, Yuxi , Deng, Jiguang et al. Highly Efficient Catalytic Ozonization at Ultralow Temperatures of Multicomponent VOCs over the Pt/CeO2 Catalysts [J]. | ACS ES&T ENGINEERING , 2023 , 4 (2) : 419-432 . |
| MLA | Wang, Jia et al. "Highly Efficient Catalytic Ozonization at Ultralow Temperatures of Multicomponent VOCs over the Pt/CeO2 Catalysts" . | ACS ES&T ENGINEERING 4 . 2 (2023) : 419-432 . |
| APA | Wang, Jia , Liu, Yuxi , Deng, Jiguang , Jing, Lin , Hao, Xiuqing , Gao, Ruyi et al. Highly Efficient Catalytic Ozonization at Ultralow Temperatures of Multicomponent VOCs over the Pt/CeO2 Catalysts . | ACS ES&T ENGINEERING , 2023 , 4 (2) , 419-432 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
Among the developed electrocatalysts, NiCr-layered double hydroxides (NiCr-LDH) are one of the most effective electrocatalytic materials for water oxidation. However, applications of such a kind of materials are practically limited due to their poor electric conductivity. In this work, the single-walled carbon nanotube (SWCNT) was doped to NiCr-LDH, and the LDH-based nanocomposites were synthesized using the one-step ultrasonic-assisted method. Physicochemical properties of the NiCr-LDH/SWCNT composites were characterized by means of X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), energy dispersive X-ray (EDX) analysis, transmission electron microscopy (TEM), field emission-scanning electron microscopy (FE-SEM), and linear sweep voltammetry (LSV). The NiCr-LDH/SWCNT composites were used as effective nanomaterials for oxygen evolution reaction (OER) at a near neutral medium. The LSV results confirm that the overpotential of the NiCr-LDH/SWCNT-0.006 sample decreased to about 120 mV at pH = 9.5, as compared with that of the NiCr-LDH or NiCr-LDH-SWCNT-0.006 (prepared by the two-step method) sample. The high oxygen evolution activity of NiCr-LDH/SWCNT-0.006 was associated with the co-presence of the homogeneously dispersed NiCr-LDH, good electrochemical activity, and high electrical conductivity. In addition, the as-prepared optimized NiCr-LDH/SWCNT electrocatalyst was highly stable for the OER reaction. (c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
Keyword ：
Ni-based-layered double hydroxide Ni-based-layered double hydroxide Ultrasonic method Ultrasonic method Doped carbon nanotube Doped carbon nanotube Water oxidation Water oxidation Electrocatalyst Electrocatalyst
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Foruzin, Leila Jafari , Nejati, Kamellia , Dai, Hongxing et al. Ultrasonic-assisted synthesis of Ni based-layered double hydroxide doped carbon nanotube and its highly efficient in water oxidation reaction [J]. | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2023 , 48 (9) : 3429-3439 . |
| MLA | Foruzin, Leila Jafari et al. "Ultrasonic-assisted synthesis of Ni based-layered double hydroxide doped carbon nanotube and its highly efficient in water oxidation reaction" . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 48 . 9 (2023) : 3429-3439 . |
| APA | Foruzin, Leila Jafari , Nejati, Kamellia , Dai, Hongxing , Rezvani, Zolfaghar . Ultrasonic-assisted synthesis of Ni based-layered double hydroxide doped carbon nanotube and its highly efficient in water oxidation reaction . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2023 , 48 (9) , 3429-3439 . |
| Export to | NoteExpress RIS BibTex |
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Dai, Hongxing , Wang, Xiang , Zhu, Yujun et al. Exclusive Papers on Environmentally Friendly Catalysis in China [J]. | CATALYSTS , 2023 , 13 (9) . |
| MLA | Dai, Hongxing et al. "Exclusive Papers on Environmentally Friendly Catalysis in China" . | CATALYSTS 13 . 9 (2023) . |
| APA | Dai, Hongxing , Wang, Xiang , Zhu, Yujun , Huang, Haibao , Zhao, Yunkun . Exclusive Papers on Environmentally Friendly Catalysis in China . | CATALYSTS , 2023 , 13 (9) . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
The emission of methane leads to the increase in the methane concentration in the atmosphere, which not only wastes resources but also intensifies the greenhouse effect and brings about serious environmental problems. Catalytic combustion can completely convert methane into carbon dioxide and water at low temperatures. However, the catalytic activities of the conventional supported palladium catalysts (e.g., Pd/Al2O3 and Pd/ZrO2) are easy to decrease or the two catalysts can even be deactivated under actual harsh reaction conditions (high temperatures, steam- and sulfur dioxide-containing atmospheres, etc.). Recently, noble metal catalysts supported on zeolites with ordered pores and good thermal stability have attracted much attention. This review article summarizes the recent progress on the development and characteristics of zeolite-supported noble metal catalysts for the combustion of methane. The effects of framework structures, silica/alumina ratios, acidity, doping of alkali metals or transition metals, particle sizes and distributions, and their locations of/in the zeolites on methane combustion activity are discussed. The importance of developing high-performance catalysts under realistic operation conditions is highlighted. In addition, the related research work on catalytic methane combustion in the future is also envisioned.
Keyword ：
zeolite zeolite supported noble metal catalyst supported noble metal catalyst catalytic oxidation mechanism catalytic oxidation mechanism methane combustion methane combustion palladium-based catalyst palladium-based catalyst
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Tao, Jinxiong , Liu, Yuxi , Deng, Jiguang et al. Methane Combustion over Zeolite-Supported Palladium-Based Catalysts [J]. | CATALYSTS , 2023 , 13 (9) . |
| MLA | Tao, Jinxiong et al. "Methane Combustion over Zeolite-Supported Palladium-Based Catalysts" . | CATALYSTS 13 . 9 (2023) . |
| APA | Tao, Jinxiong , Liu, Yuxi , Deng, Jiguang , Jing, Lin , Hou, Zhiquan , Wei, Lu et al. Methane Combustion over Zeolite-Supported Palladium-Based Catalysts . | CATALYSTS , 2023 , 13 (9) . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
The development of efficient and stable catalysts is of great importance for the elimination of volatile organic pollutants (VOCs). In this work, AuPdx nanoparticles (NPs) were loaded on TiO2 through the electrostatic adsorption approach to generate the yAuPd(x)/TiO2 (i.e., 0.35AuPd(0.46)/TiO2, 0.34AuPd(2.09)/TiO2, and 0.37AuPd(2.72)/TiO2; x and y are Pd/Au molar ratio and AuPdx loading, respectively; x = 0.46-2.72; and y = 0.34-0.37 wt%) catalysts, and their catalytic activities for the oxidation of ethyl acetate were determined. The results showed that the 0.37AuPd(2.72)/TiO2 sample exhibited the best activity (T-50% = 217 degrees C and T-90% = 239 degrees C at SV = 40,000 mL/(g h), E-a = 37 kJ/mol, specific reaction rate at 220 degrees C = 113.8 mu mol/(g(Pd) s), and turnover frequency (TOFNoble metal) at 220 degrees C = 109.7 x 10(-3) s(-1)). The high catalytic performance of the 0.37AuPd(2.72)/TiO2 sample was attributed to the good dispersion of AuPd2.72 NPs, the strong redox ability, the large ethyl acetate adsorption capacity, and the strong interaction between AuPdx and TiO2. Acetaldehyde, ethanol, and acetic acid are the main intermediates in the oxidation of ethyl acetate, and the loading of AuPdx NPs effectively reduces the formation of the toxic by-product acetaldehyde. The oxidation of ethyl acetate over the 0.34AuPd(2.09)/TiO2 sample might occur via the pathway of ethyl acetate -> ethanol -> acetic acid -> acetate -> CO2 and H2O. We believe that the obtained results may provide a useful idea for the design of bimetallic catalysts under industrial conditions and for understanding the VOCs oxidation mechanisms.
Keyword ：
ethyl acetate oxidation ethyl acetate oxidation strong electrostatic adsorption strong electrostatic adsorption sulfur dioxide resistance sulfur dioxide resistance reaction mechanism reaction mechanism supported Au-Pd nanocatalyst supported Au-Pd nanocatalyst
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Bao, Minming , Liu, Yuxi , Deng, Jiguang et al. Catalytic Performance and Reaction Mechanisms of Ethyl Acetate Oxidation over the Au-Pd/TiO2 Catalysts [J]. | CATALYSTS , 2023 , 13 (4) . |
| MLA | Bao, Minming et al. "Catalytic Performance and Reaction Mechanisms of Ethyl Acetate Oxidation over the Au-Pd/TiO2 Catalysts" . | CATALYSTS 13 . 4 (2023) . |
| APA | Bao, Minming , Liu, Yuxi , Deng, Jiguang , Jing, Lin , Hou, Zhiquan , Wang, Zhiwei et al. Catalytic Performance and Reaction Mechanisms of Ethyl Acetate Oxidation over the Au-Pd/TiO2 Catalysts . | CATALYSTS , 2023 , 13 (4) . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
As typical air pollutants, CO, CH4, and volatile organic compounds (VOCs) have received great attention due to their negative impact on the environment and human health. Heterogeneous catalysts are widely used in the catalytic removal of exhaust emission from industrial and automobile sources but still suffer from deactivation because of various factors. The development of a catalyst with excellent catalytic stability is highly desired. We herein summarized the recent progress for enhancing the catalytic stability of catalysts and tried to obtain an in-depth understanding of the long-term durability, resistance to sinter, and tolerance for multi-impurities. Finally, the current challenges and future perspectives for developing stable and highly efficient catalysts in the fields of synergistic catalytic removal of pollutants or resource utilization of VOCs via the selective catalytic oxidation are proposed.
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Feng, Yuan , Liu, Yuxi , Dai, Hongxing et al. Review and Perspectives of Enhancement in the Catalytic Stability for the Complete Combustion of CO, CH4, and Volatile Organic Compounds [J]. | ENERGY & FUELS , 2023 . |
| MLA | Feng, Yuan et al. "Review and Perspectives of Enhancement in the Catalytic Stability for the Complete Combustion of CO, CH4, and Volatile Organic Compounds" . | ENERGY & FUELS (2023) . |
| APA | Feng, Yuan , Liu, Yuxi , Dai, Hongxing , Deng, Jiguang . Review and Perspectives of Enhancement in the Catalytic Stability for the Complete Combustion of CO, CH4, and Volatile Organic Compounds . | ENERGY & FUELS , 2023 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
Designing new synthesis routes to fabricate highly thermallydurableprecious metal single-atom catalysts (SACs) is challenging in industrialapplications. Herein, a general strategy is presented that startsfrom dual-metal nanocrystals (NCs), using bimetallic NCs as a facilitatorto spontaneously convert a series of noble metals to single atomson aluminum oxide. The metal single atoms are captured by cation defects in situ formed on the surface of the inversespinel (AB(2)O(4)) structure, which process providesnumerous anchoring sites, thus facilitating generation of the isolatedmetal atoms that contributes to the extraordinary thermodynamic stability.The Pd-1/AlCo2O4-Al2O3 shows not only improved low-temperature activity butalso unprecedented (hydro)thermal stability for CO and propane oxidationunder harsh aging conditions. Furthermore, our strategy exhibits asmall scaling-up effect by the simple physical mixing of commercialmetal oxide aggregates with Al2O3. The goodregeneration between oxidative and reductive atmospheres of theseionic palladium species makes this catalyst system of potential interestfor emissions control.
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Hou, Zhiquan , Lu, Yue , Liu, Yuxi et al. A General Dual-Metal Nanocrystal Dissociation Strategy to Generate Robust High-Temperature-Stable Alumina-Supported Single-Atom Catalysts [J]. | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY , 2023 , 145 (29) : 15869-15878 . |
| MLA | Hou, Zhiquan et al. "A General Dual-Metal Nanocrystal Dissociation Strategy to Generate Robust High-Temperature-Stable Alumina-Supported Single-Atom Catalysts" . | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 145 . 29 (2023) : 15869-15878 . |
| APA | Hou, Zhiquan , Lu, Yue , Liu, Yuxi , Liu, Ning , Hu, Jingcong , Wei, Lu et al. A General Dual-Metal Nanocrystal Dissociation Strategy to Generate Robust High-Temperature-Stable Alumina-Supported Single-Atom Catalysts . | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY , 2023 , 145 (29) , 15869-15878 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
The painting and electronics industries simultaneously release aromatic compounds and chlorinated organics. The development of catalysts with synergistic control of these pollutants is of great significance to achieve air purification. However, developing active catalysts while maintaining good chlorine resistance remain a huge challenge due to the difficulty of the trade-off between the redox properties and acidity and the production of polychlorinated byproducts. Herein, we introduce a novel tandem PtSn/CeO2 & Mn/ZSM-5 catalyst and investigate its catalytic performance for multicomponent volatile organic compounds (VOCs) oxidation. The two individual catalysts, PtSn/CeO2 and Mn/ZSM-5, were used to catalyze two distinct sequential reactions. PtSn/CeO2 catalyzed toluene oxidation to produce CO2 and H2O. Meanwhile, the introduction of SnOx favored the adsorption of trichloroethylene (TCE) molecules that prevented Pt sites from chlorine poisoning and possibly converted adsorbed TCE into intermediates, which were subsequently oxidized deeply by the nearby Mn/ZSM-5. This approach resulted in a remarkable oxidation efficiency for toluene (T90 = 296 degrees C) and TCE (T90 = 384 degrees C), with fewer unexpected toxic byproducts (chlorobenzene and 4-chlorotoluene). Furthermore, the tandem catalyst possessed excellent chlorine and water resistances. In conclusion, the above findings provide new insights into the design and/or syntheses of advanced catalysts for widespread VOCs pollution control.
Keyword ：
Catalytic oxidation Catalytic oxidation Polychlorinated byproducts Polychlorinated byproducts Multicomponent volatile organic compound Multicomponent volatile organic compound Supported catalyst Supported catalyst Tandem catalyst Tandem catalyst
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Li, Zeya , Gao, Ruyi , Hou, Zhiquan et al. Tandem supported Pt and ZSM-5 catalyst with separated catalytic functions for promoting multicomponent VOCs oxidation [J]. | APPLIED CATALYSIS B-ENVIRONMENTAL , 2023 , 339 . |
| MLA | Li, Zeya et al. "Tandem supported Pt and ZSM-5 catalyst with separated catalytic functions for promoting multicomponent VOCs oxidation" . | APPLIED CATALYSIS B-ENVIRONMENTAL 339 (2023) . |
| APA | Li, Zeya , Gao, Ruyi , Hou, Zhiquan , Yu, Xiaohui , Dai, Hongxing , Deng, Jiguang et al. Tandem supported Pt and ZSM-5 catalyst with separated catalytic functions for promoting multicomponent VOCs oxidation . | APPLIED CATALYSIS B-ENVIRONMENTAL , 2023 , 339 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
Pt-based commercial catalysts tend to be poisoned by chlorine species in the oxidation of chlorinated volatile organic compounds (CVOCs), which greatly limits their wide applications. It is vital to develop the active catalysts with good chlorine resistance. In the present work, the novel supported ternary metallic catalysts (PtSnM/ CeO2; M = Mn, W, Nb) with the closely coupled multi-active sites show good catalytic performance and excellent chlorine resistance for the oxidation of toluene and chlorobenzene (CB), and can effectively inhibit formation of the toxic chlorine-containing by-products. The catalytic activity for toluene oxidation in the mixed VOCs system follows the sequence: PtSnMn/CeO2 > PtSnW/CeO2 & AP;PtSnNb/CeO2 > PtSn/CeO2 > Pt/CeO2. The change of the electron structure around Pt results in the difference in adsorption capacity of toluene and CB. The C-Cl bond is first dissociated at the Bronsted acid sites, and the non-chlorinated organic compounds are oxidized at the Pt sites that contact with the acid sites in the proximity. Additional water provides sufficient protons to react with Cl species, enhancing the desorption amount of HCl; furthermore, the water also reacts with the adsorbed oxygen to generate new oxygen species, which participates in the oxidation of VOCs, so as to accelerate the removal of Cl species on the catalyst surface and reduce the more toxic polychlorine by-products. This work is helpful for developing the supported noble metal catalysts with good chlorine-resistant performance in the oxidation of multicomponent VOCs under the actual industrial conditions.
Keyword ：
Catalytic oxidation Catalytic oxidation Supported Pt-based catalyst Supported Pt-based catalyst Chlorine resistance Chlorine resistance Multicomponent volatile organic compound Multicomponent volatile organic compound Ternary metal nanoparticle Ternary metal nanoparticle
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Gao, Ruyi , Tian, Xinrong , Ding, Xinlei et al. Regulating catalytic stability of PtSnM/CeO2 (M = Mn, W, Nb) catalysts via the closely coupled multi-active sites to promote multicomponent VOCs oxidation [J]. | CHEMICAL ENGINEERING JOURNAL , 2023 , 471 . |
| MLA | Gao, Ruyi et al. "Regulating catalytic stability of PtSnM/CeO2 (M = Mn, W, Nb) catalysts via the closely coupled multi-active sites to promote multicomponent VOCs oxidation" . | CHEMICAL ENGINEERING JOURNAL 471 (2023) . |
| APA | Gao, Ruyi , Tian, Xinrong , Ding, Xinlei , Hou, Zhiquan , Li, Zeya , Yu, Xiaohui et al. Regulating catalytic stability of PtSnM/CeO2 (M = Mn, W, Nb) catalysts via the closely coupled multi-active sites to promote multicomponent VOCs oxidation . | CHEMICAL ENGINEERING JOURNAL , 2023 , 471 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
Chlorinated volatile organic compounds (CVOCs), even in small quantities, can cause Pt-based catalyst poisoning. Improving the low-temperature chlorine resistance of catalysts is of vital importance for industrial application, although it remains challenging. Considering actual industrial production, a TiO2-supported ternary metal catalyst was prepared in this work to study the catalytic oxidation of multicomponent VOCs (toluene and trichloroethylene (TCE)). Among all of the samples, PtWRu/TiO2 and PtWCr/TiO2 exhibited the best catalytic performance for toluene oxidation. In the mixed VOC oxidation, the PtWCr/TiO2 sample showed the best catalytic activity for toluene combustion (a toluene conversion of 90% was achieved at 258 degrees C and a space velocity of 40,000 mL g(-1) h(-1), and the specific reaction rate and turnover frequency at 215 degrees C were 44.9 x 10(-6) mol g(Pt)(-1) s(-1) and 26.2 x 10(-5) s(-1)). The PtWRu/TiO2 sample showed the best catalytic activity for TCE combustion (a TCE conversion of 90% was achieved at 305 degrees C and a space velocity of 40,000 mL g(-1) h(-1), and the specific reaction rate and turnover frequency at 270 degrees C were 9.0 x 10(-6) mol g(Pt)(-1) s(-1) and 7.3 x 10(-5) s(-1)). We concluded that the ternary metal catalysts could greatly improve chlorine desorption by increasing the active lattice oxygen mobility and surface acidity, thus reducing chlorinated byproducts and other serious environmental pollutants. This work may serve as a reasonable design reference for solving more practical industrial production emissions of multicomponent VOCs.
Keyword ：
Pt-based catalysts Pt-based catalysts toluene and TCE combustion toluene and TCE combustion supported ternary metal catalysts supported ternary metal catalysts volatile organic compounds volatile organic compounds chlorine-resistant ability chlorine-resistant ability
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Dong, Tiantian , Liu, Kun , Gao, Ruyi et al. Enhanced Performance of Supported Ternary Metal Catalysts for the Oxidation of Toluene in the Presence of Trichloroethylene [J]. | CATALYSTS , 2022 , 12 (5) . |
| MLA | Dong, Tiantian et al. "Enhanced Performance of Supported Ternary Metal Catalysts for the Oxidation of Toluene in the Presence of Trichloroethylene" . | CATALYSTS 12 . 5 (2022) . |
| APA | Dong, Tiantian , Liu, Kun , Gao, Ruyi , Chen, Hualian , Yu, Xiaohui , Hou, Zhiquan et al. Enhanced Performance of Supported Ternary Metal Catalysts for the Oxidation of Toluene in the Presence of Trichloroethylene . | CATALYSTS , 2022 , 12 (5) . |
| Export to | NoteExpress RIS BibTex |
Export
| Results： |
Selected to |
| Format： |
