1
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Ran J, Chen P, Quan X, Si M, Gao D. Improving the Oxygen Evolution Reaction Kinetics in Zn-Air Battery by Iodide Oxidation Reaction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2402052. [PMID: 38970555 DOI: 10.1002/smll.202402052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 06/30/2024] [Indexed: 07/08/2024]
Abstract
Zinc-air batteries (ZABs) have garnered considerable attention as a highly promising contender in the field of energy storage and conversion. Nevertheless, their performance is considerably impeded by the proliferation of dendrites on the Zinc anode and the slow kinetics of the redox reaction on the air cathode. Herein, taking Ag30%@LaCoO3 (Ag30%@LCO) heterojunction catalyst as the cathode, it is demonstrated that adding KI additives to the alkaline electrolyte can not only enhance the oxygen electrocatalytic reaction but also inhibit the formation of zinc anode dendrites, thereby achieving a comprehensive improvement in the performance of ZABs. Under the action of the KI additive, the optimized Ag30%@LCO catalyst shows a decreased overpotential from 460 to 220 mV at j = 10 mA cm-2, while the assembled ZAB shows reduced charging potential (1.8 V), and long cycle stability (180 h). Furthermore, the morphology characterization results indicate a reduction in dendrites on the Zn anode. Both experimental and calculated results indicate that the presence of I- as a reaction modifier alters the trajectory of the conventional oxygen evolution reaction, resulting in a more thermodynamically favorable pathway. The introduction of KI additives as electrolytes provides a straightforward approach to developing comprehensively improved ZABs.
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Affiliation(s)
- Jiaqi Ran
- Laboratory for Magnetism and Magnetic Materials, Laboratory Lanzhou University, Lanzhou, 730000, China
- Institute of Nanoscience and Nanotechnology, School of Materials and Energy, Lanzhou University, Lanzhou, 730000, China
| | - Peng Chen
- Laboratory for Magnetism and Magnetic Materials, Laboratory Lanzhou University, Lanzhou, 730000, China
| | - Xiangning Quan
- Institute of Nanoscience and Nanotechnology, School of Materials and Energy, Lanzhou University, Lanzhou, 730000, China
| | - Mingsu Si
- Institute of Nanoscience and Nanotechnology, School of Materials and Energy, Lanzhou University, Lanzhou, 730000, China
| | - Daqiang Gao
- Laboratory for Magnetism and Magnetic Materials, Laboratory Lanzhou University, Lanzhou, 730000, China
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2
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Neha, Singh H, Singh SV. Insights into the interface of NiCo 2O 4 spinel /LaCoO 3 perovskite nano-composite for CO and soot oxidation. J Environ Sci (China) 2024; 138:339-349. [PMID: 38135401 DOI: 10.1016/j.jes.2023.03.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 03/05/2023] [Accepted: 03/11/2023] [Indexed: 12/24/2023]
Abstract
In the quest for the development of thermally stable, highly active and low-cost catalysts for use in catalyzed diesel particulate filter, nano-composites are new areas of research. Therefore, we reported the easy synthesis of spinel NiCo2O4/perovskite LaCoO3 nano-composite, and its individual oxides NiCo2O4 and LaCoO3 for comparison. The detailed insights into the physio-chemical characteristics of formed NiCo2O4/ LaCoO3 nano-composite were done based on various characterization analysis such as X-ray diffraction (XRD), Fourier transform infrared (FT-IR), N2 physiosorption, scanning electron microscopy-energy dispersive spectroscopy (SEM-EDX), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The characterization analysis of NiCo2O4/LaCoO3 revealed the successful formation of a chemical interface possessing strong interfacial interaction, resulting in desirable physicochemical characteristics such as small crystallite size, abundant mesoporosity, high specific surface area and activation of surface lattice oxygen. Owing to the desirable characteristics, the activity results over NiCo2O4/LaCoO3 nano-composite showed the excellent CO oxidation performance and high soot oxidation activity, recyclability and thermal stability. This work mainly attempts to emphasize the effectiveness of the facile, inexpensive and conventionally used precipitation method for the successful formation of highly efficient nano-composites.
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Affiliation(s)
- Neha
- Department of Chemical Engineering, Indian Institute of Technology (BHU), Varanasi, 221005, India.
| | - Harshita Singh
- Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Satya Vir Singh
- Department of Chemical Engineering, Indian Institute of Technology (BHU), Varanasi, 221005, India
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3
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Ao R, Pu T, Ma L, Dai Q, Yang J, Li W, Xie L, Guo Z. Understanding the effects of A-site Ag-doping on LaCoO 3 perovskite for NO oxidation: Structural and magnetic properties. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 353:120160. [PMID: 38278120 DOI: 10.1016/j.jenvman.2024.120160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/01/2024] [Accepted: 01/20/2024] [Indexed: 01/28/2024]
Abstract
The partial substitution of A-site in perovskites is a major strategy to enhance the catalytic oxidation activity. This study explores the use of silver (Ag) to partially replace the lanthanum (La) ion at the A-site in LaCoO3 perovskite, investigating the role of Ag in the ABO3 perovskite structure, elucidating the nitric oxide (NO) oxidation mechanism over La1-xAgxCoO3 (x = 0.1-0.5) perovskites. La0.7Ag0.3CoO3 with an Ag-doping amount of 0.3, exhibited the highest NO oxidation activity of 88.5% at 275 °C. Characterization results indicated that Ag substitution enhanced the perovskite, maintaining its original phase structure, existing in the form of a mixture of Ag0 and Ag+ in the La1-xAgxCoO3 (x = 0.1-0.5) perovskites. Notably, Ag substitution improved the specific surface area, reduction performance, Co3+, and surface adsorption oxygen content. Additionally, the study investigated the relationship between magnetism and NO oxidation from a magnetism perspective. Ag-doping strengthened the magnetism of La-Ag perovskite, resulting in stronger adsorption of paramagnetic NO. This study elucidated the NO oxidation mechanism over La-Ag perovskite, considering structural and magnetic properties, providing valuable insights for the subsequent development and industrial application of high oxidation ability perovskite catalysts.
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Affiliation(s)
- Ran Ao
- College of Eco-Environmental Engineering, Guizhou Minzu University, Guiyang, 550025, PR China
| | - Tao Pu
- College of Eco-Environmental Engineering, Guizhou Minzu University, Guiyang, 550025, PR China
| | - Liping Ma
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650500, PR China.
| | - Quxiu Dai
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650500, PR China
| | - Jie Yang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650500, PR China
| | - Wengang Li
- Kunming University of Science and Technology Design & Research Institute Co., Ltd., Kunming, Yunnan, 650500, PR China
| | - Longgui Xie
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650500, PR China
| | - Zhiying Guo
- College of Biological and Agricultural Sciences, Honghe University, Mengzi, Yunnan, 661199, PR China.
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4
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Zuhra Z, Li S, Xie G, Wang X. Soot Erased: Catalysts and Their Mechanistic Chemistry. Molecules 2023; 28:6884. [PMID: 37836727 PMCID: PMC10574243 DOI: 10.3390/molecules28196884] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/25/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023] Open
Abstract
Soot formation is an inevitable consequence of the combustion of carbonaceous fuels in environments rich in reducing agents. Efficient management of pollution in various contexts, such as industrial fires, vehicle engines, and similar applications, relies heavily on the subsequent oxidation of soot particles. Among the oxidizing agents employed for this purpose, oxygen, carbon dioxide, water vapor, and nitrogen dioxide have all demonstrated effectiveness. The scientific framework of this research can be elucidated through the following key aspects: (i) This review situates itself within the broader context of pollution management, emphasizing the importance of effective soot oxidation in reducing emissions and mitigating environmental impacts. (ii) The central research question of this study pertains to the identification and evaluation of catalysts for soot oxidation, with a specific emphasis on ceria-based catalysts. The formulation of this research question arises from the need to enhance our understanding of catalytic mechanisms and their application in environmental remediation. This question serves as the guiding principle that directs the research methodology. (iii) This review seeks to investigate the catalytic mechanisms involved in soot oxidation. (iv) This review highlights the efficacy of ceria-based catalysts as well as other types of catalysts in soot oxidation and elucidate the underlying mechanistic strategies. The significance of these findings is discussed in the context of pollution management and environmental sustainability. This study contributes to the advancement of knowledge in the field of catalysis and provides valuable insights for the development of effective strategies to combat air pollution, ultimately promoting a cleaner and healthier environment.
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Affiliation(s)
- Zareen Zuhra
- Department of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China; (Z.Z.); (S.L.); (X.W.)
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China
| | - Shuo Li
- Department of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China; (Z.Z.); (S.L.); (X.W.)
| | - Guanqun Xie
- Department of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China; (Z.Z.); (S.L.); (X.W.)
| | - Xiaoxia Wang
- Department of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China; (Z.Z.); (S.L.); (X.W.)
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5
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Jayapandi S, Soundarrajan P, Kumar SS, Lakshmi D, Albaqami MD, Ouladsmane M, Mani G. Efficient Z-scheme LaCoO3/In2O3 heterostructure photocatalyst for fast dye degradation under visible light irradiation. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04832-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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6
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Guo G, Yu J, Wei M. Preparation of Ag-CeO2-LSCF composite catalyst and its catalytic performance for soot. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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7
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He L, Zhang Y, Zang Y, Liu C, Wang W, Han R, Ji N, Zhang S, Liu Q. Promotion of A-Site Ag-Doped Perovskites for the Catalytic Oxidation of Soot: Synergistic Catalytic Effect of Dual Active Sites. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03693] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lijun He
- Department of Environmental Engineering, Tianjin University, Tianjin 300350, People’s Republic of China
- State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin 300350, People’s Republic of China
| | - Yan Zhang
- Department of Environmental Engineering, Tianjin University, Tianjin 300350, People’s Republic of China
- State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin 300350, People’s Republic of China
| | - Yuchao Zang
- Department of Environmental Engineering, Tianjin University, Tianjin 300350, People’s Republic of China
- State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin 300350, People’s Republic of China
| | - Caixia Liu
- Department of Environmental Engineering, Tianjin University, Tianjin 300350, People’s Republic of China
- State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin 300350, People’s Republic of China
| | - Weichao Wang
- College of Environmental Science and Engineering, Tianjin Key Laboratory of Environmental Remediation & Pollution Control, MOE Key Laboratory of Pollution Processes and Environmental Criteria, Nankai University, 38 Tongyan Road, Tianjin 300350, People’s Republic of China
| | - Rui Han
- Department of Environmental Engineering, Tianjin University, Tianjin 300350, People’s Republic of China
- State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin 300350, People’s Republic of China
| | - Na Ji
- Department of Environmental Engineering, Tianjin University, Tianjin 300350, People’s Republic of China
- State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin 300350, People’s Republic of China
| | - Shuting Zhang
- Department of Environmental Engineering, Tianjin University, Tianjin 300350, People’s Republic of China
| | - Qingling Liu
- Department of Environmental Engineering, Tianjin University, Tianjin 300350, People’s Republic of China
- State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin 300350, People’s Republic of China
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8
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Xu H, Zeng L, Cui L, Guo W, Gong C, Xue G. In-situ generation of platinum nanoparticles on LaCoO3 matrix for soot oxidation. J RARE EARTH 2021. [DOI: 10.1016/j.jre.2021.06.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Feng X, Zhang S, Wang F, Ma J, Xu X, Lai Q, Xu J, Fang X, Wang X. Metallic Ag Confined on SnO
2
Surface for Soot Combustion: the Influence of Ag Distribution and Dispersion on the Reactivity. ChemCatChem 2021. [DOI: 10.1002/cctc.202100041] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xiaohui Feng
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis College of Chemistry Nanchang University Xuefu Avenue, Honggutan New District Nanchang P.R. China
| | - Shijing Zhang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis College of Chemistry Nanchang University Xuefu Avenue, Honggutan New District Nanchang P.R. China
| | - Fumin Wang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis College of Chemistry Nanchang University Xuefu Avenue, Honggutan New District Nanchang P.R. China
| | - Jun Ma
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis College of Chemistry Nanchang University Xuefu Avenue, Honggutan New District Nanchang P.R. China
| | - Xianglan Xu
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis College of Chemistry Nanchang University Xuefu Avenue, Honggutan New District Nanchang P.R. China
| | - Qiang Lai
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis College of Chemistry Nanchang University Xuefu Avenue, Honggutan New District Nanchang P.R. China
| | - Junwei Xu
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis College of Chemistry Nanchang University Xuefu Avenue, Honggutan New District Nanchang P.R. China
| | - Xiuzhong Fang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis College of Chemistry Nanchang University Xuefu Avenue, Honggutan New District Nanchang P.R. China
| | - Xiang Wang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis College of Chemistry Nanchang University Xuefu Avenue, Honggutan New District Nanchang P.R. China
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10
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He J, Zhang H, Wang W, Yao P, Jiao Y, Wang J, Chen Y. Soot combustion over CeO 2 catalyst: the influence of biodiesel impurities (Na, K, Ca, P) on surface chemical properties. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:26018-26029. [PMID: 33481195 DOI: 10.1007/s11356-020-11918-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Accepted: 12/01/2020] [Indexed: 06/12/2023]
Abstract
This work assessed the impact of biodiesel impurities on CeO2 catalyst for soot combustion via soot-TPO experiments. The results showed that Na- and K-doped catalysts were assisted for soot combustion, while Ca- and P-doped catalysts had a negative effect. N2 adsorption-desorption and XRD results indicated that doping biodiesel impurities led to smaller surface area by blocking small pores. Surface chemical properties are suggested as major reasons for promoting soot combustion by means of XPS, H2-TPR, and O2-TPD. Na- and K-doped catalysts showed stronger redox ability and surface lattice oxygen mobility, poorly for Ca- and P-doped catalysts. Interestingly, a large number of surface oxygen species were observed on P-doped catalyst and it enhanced the ignition of bio soot. In the presence of NO, surface chemical properties including NOx storage/release capacity and NO oxidation ability were characterized by NO-adsorption DRIFTS, NO-TPO and NOx-desorption DRIFTS, alkali-doped catalyst with excellent NOx storage capacity that can release active oxygen species and gaseous NO2 accelerate heterogeneous soot combustion, and the poor NO conversion ability to NO2 that weakens the promotion effect of soot combustion. Particularly in the existence of P, the promotion effect of soot elimination in NO + O2 was further weakened by the reason of poor NOx storage capacity and NO oxidation ability.
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Affiliation(s)
- Jishuang He
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, Sichuan, China
| | - Hailong Zhang
- College of Chemistry and Chemical Engineer, Xiamen University, Xiamen, 361005, Fujian, China
| | - Wei Wang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, Sichuan, China
| | - Peng Yao
- Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu, 610064, Sichuan, China
| | - Yi Jiao
- Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu, 610064, Sichuan, China.
| | - Jianli Wang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, Sichuan, China.
| | - Yaoqiang Chen
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, Sichuan, China
- Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu, 610064, Sichuan, China
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11
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Wang Y, Zhang L, Zhang C, Xu X, Xie Y, Chen W, Wang J, Zhang R. Promoting the Generation of Active Oxygen over Ag-Modified Nanoflower-like α-MnO2 for Soot Oxidation: Experimental and DFT Studies. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c01308] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yuhang Wang
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, Henan, China
- School of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Longzhu Zhang
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Changsen Zhang
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, Henan, China
- School of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Xingmin Xu
- School of Forensic Medicine, Henan University of Technology, Luoyang 471000, Henan, China
| | - Yunyun Xie
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, Henan, China
- School of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Wenjun Chen
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, Henan, China
- School of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Jie Wang
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, Henan, China
- School of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Ruiqin Zhang
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, Henan, China
- School of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, Henan, China
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12
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Medina JC, Rodil SE, Zanella R. Synthesis of a CeO2/Co3O4 catalyst with a remarkable performance for the soot oxidation reaction. Catal Sci Technol 2020. [DOI: 10.1039/c9cy01821b] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A highly active catalyst based on CeO2/Co3O4 for soot oxidation at low temperatures with complete selectivity toward CO2.
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Affiliation(s)
- J. C. Medina
- Instituto de Ciencias Aplicadas y Tecnología
- Universidad Nacional Autónoma de México
- C.P. 04510 Mexico City
- Mexico
| | - S. E. Rodil
- Instituto de Investigaciones en Materiales
- Universidad Nacional Autónoma de México
- Mexico City
- Mexico
| | - Rodolfo Zanella
- Instituto de Ciencias Aplicadas y Tecnología
- Universidad Nacional Autónoma de México
- C.P. 04510 Mexico City
- Mexico
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13
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Li W, Wang S, Li J. Highly Effective Ru/BaCeO
3
Catalysts on Supports with Strong Basic Sites for Ammonia Synthesis. Chem Asian J 2019; 14:2815-2821. [DOI: 10.1002/asia.201900618] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 06/10/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Wei Li
- Shanxi Key Laboratory of Gas Energy Efficient and Clean UtilizationTaiyuan University of Technology Taiyuan 030024 P. R. China
| | - Shuang Wang
- College of Environmental Science and EngineeringTaiyuan University of Technology Jinzhong 030600 P. R. China
- Shanxi Key Laboratory of Gas Energy Efficient and Clean UtilizationTaiyuan University of Technology Taiyuan 030024 P. R. China
| | - Jinping Li
- Shanxi Key Laboratory of Gas Energy Efficient and Clean UtilizationTaiyuan University of Technology Taiyuan 030024 P. R. China
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14
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Yamaura H, Takahashi H, Fukuoka M, Nishibori M, Yamaguchi S, Yahiro H. PM oxidation over Ag-loaded perovskite-type oxide catalyst prepared by thermal decomposition of heteronuclear cyano-complex precursor. Catal Today 2019. [DOI: 10.1016/j.cattod.2018.08.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Physico-chemical properties and catalytic activity of the sol-gel prepared Ce-ion doped LaMnO 3 perovskites. Sci Rep 2019; 9:7747. [PMID: 31123284 PMCID: PMC6533315 DOI: 10.1038/s41598-019-44118-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 05/09/2019] [Indexed: 11/08/2022] Open
Abstract
Ce-doped LaMnO3 perovskite ceramics (La1−xCexMnO3) were synthesized by sol-gel based co-precipitation method and tested for the oxidation of benzyl alcohol using molecular oxygen. Benzyl alcohol conversion of ca. 25–42% was achieved with benzaldehyde as the main product. X-ray diffraction (XRD), thermogravimetric analysis (TGA), BET surface area, transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), temperature-programmed reduction (H2-TPR), temperature-programmed oxidation (O2-TPO), FT-IR and UV-vis spectroscopic techniques were used to examine the physiochemical properties. XRD analysis demonstrates the single phase crystalline high purity of the perovskite. The Ce-doped LaMnO3 perovskite demonstrated reducibility at low-temperature and higher mobility of surface O2-ion than their respective un-doped perovskite. The substitution of Ce3+ ion into the perovskite matrix improve the surface redox properties, which strongly influenced the catalytic activity of the material. The LaMnO3 perovskite exhibited considerable activity to benzyl alcohol oxidation but suffered a slow deactivation with time-on-stream. Nevertheless, the insertion of the A site metal cation with a trivalent Ce3+ metal cation led to an enhanced in catalytic performance because of atomic-scale interactions between the A and B active site. La0.95Ce0.05MnO3 catalyst demonstrated the excellent catalytic activity with a selectivity of 99% at 120 °C.
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16
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Catalytic removal of soot particles over MnCo2O4 catalysts prepared by the auto-combustion method. CHEMICAL PAPERS 2018. [DOI: 10.1007/s11696-018-0397-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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17
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Luo J, Zhou X, Ning X, Zhan L, Ma L, Xu X, Li S, Sun S. Utilization of LaCoO3 as an efficient co-catalyst to boost the visible light photocatalytic performance of g-C3N4. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2018.03.016] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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