1
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Jin Y, Cheng H, Wang Q, Liu X, Mo S, Zhou B, Peng Y, Wang Y, Si W, Li J. Insights into in situ surface reconstruction in cobalt perovskite oxides for enhanced catalytic activity. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:135113. [PMID: 38996683 DOI: 10.1016/j.jhazmat.2024.135113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 06/24/2024] [Accepted: 07/04/2024] [Indexed: 07/14/2024]
Abstract
An depth understanding of the fundamental interactions between surface termination and catalytic activity is crucial to prompt the properties of functional perovskite materials. The elastic energy due to size mismatch and electrostatic attraction of the charged Sr dopant by positively charged oxygen vacancies induced inert A-site surface enrichment rearrangement for perovskites. Lower temperatures could reduce A-site enrichment, but it is difficult to form perovskite crystals. La0.8Sr0.2CoO3-δ (LSCO) as a model perovskite oxide was modified with additive urea to reduce the crystallization temperature, and suppress Sr segregation. The LSCO catalysts with 600 °C annealing temperature (LSCO-600) exhibited a 19.4-fold reaction reactivity of toluene oxidation than that with 800 °C annealing temperature (LSCO-800). Combined surface-sensitive and depth-resolved techniques for surface and sub-surface analysis, surface Sr enrichment was effectively suppressed due to decreased oxygen vacancy concentration and smaller electrostatic driving force. DFT calculations and in-situ DRIFTs spectra well revealed that tuning the surface composition/termination affected the intrinsic reactivity. The catalyst surface with lower Sr enrichment could easily adsorb toluene, cleave, and decompose benzene rings, thus contributing to toluene degradation to CO2. This work demonstrates a green and efficient way to control surface composition and termination at the atomic scale for higher catalytic activity.
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Affiliation(s)
- Yanyu Jin
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China; State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China; School of Chemical & Environmental Engineering, China University of Mining and Technology, Beijing 100084, China
| | - Hongjun Cheng
- School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China
| | - Qibao Wang
- School of Chemical & Environmental Engineering, China University of Mining and Technology, Beijing 100084, China
| | - Xiaoqing Liu
- School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China
| | - Shengpeng Mo
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Bin Zhou
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Yue Peng
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Yu Wang
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China.
| | - Wenzhe Si
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Junhua Li
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
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2
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Fang Z, Zhou Z, Zeng Z, Xia YG, Liu J, Hu B, Li K, Li JH, Lu Q. Revealing the Synergistic Effect of Cation and Anion Vacancies on Enhanced Fenton-Like Reaction: The Electron Density Modulation of O 2p-Co 3d Bands. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2402748. [PMID: 38898734 DOI: 10.1002/smll.202402748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 05/27/2024] [Indexed: 06/21/2024]
Abstract
Defect engineering is considered as a flexible and effective mean to improve the performance of Fenton-like reactions. Herein, a simple method is employed to synthesize Co3O4 catalysts with Co-O vacancy pairs (VP) for peroxymonosulfate (PMS) activation. Multi-scaled characterization, experimental, and simulation results jointly revealed that the cation vacancies-VCo contributed to enhanced conductivity and anion vacancies-VO provided a new active center for the 1O2 generation. Co3O4-VP can optimize the O 2p and Co 3d bands with the strong assistance of synergistic double vacancies to reduce the reaction energy barrier of the "PMS → Co(IV) = O → 1O2" pathway, ultimately triggering the stable transition of mechanism. Co3O4-VP catalysts with radical-nonradical collaborative mechanism achieve the synchronous improvement of activity and stability, and have good environmental robustness to favor water decontamination applications. This result highlights the possibility of utilizing anion and cation vacancy engineering strategies to rational design Co3O4-based materials widely used in catalytic reactions.
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Affiliation(s)
- Zhimo Fang
- National Engineering Research Center of New Energy Power Generation, North China Electric Power University, Beijing, 102206, China
| | - Zhou Zhou
- National Engineering Research Center of New Energy Power Generation, North China Electric Power University, Beijing, 102206, China
| | - Zepeng Zeng
- National Engineering Research Center of New Energy Power Generation, North China Electric Power University, Beijing, 102206, China
| | - Yuan-Gu Xia
- National Engineering Research Center of New Energy Power Generation, North China Electric Power University, Beijing, 102206, China
| | - Ji Liu
- National Engineering Research Center of New Energy Power Generation, North China Electric Power University, Beijing, 102206, China
| | - Bin Hu
- National Engineering Research Center of New Energy Power Generation, North China Electric Power University, Beijing, 102206, China
| | - Kai Li
- National Engineering Research Center of New Energy Power Generation, North China Electric Power University, Beijing, 102206, China
| | - Ji-Hong Li
- National Engineering Research Center of New Energy Power Generation, North China Electric Power University, Beijing, 102206, China
| | - Qiang Lu
- National Engineering Research Center of New Energy Power Generation, North China Electric Power University, Beijing, 102206, China
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3
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Fan Y, Li T, Li B, Hu A, Li D, Li K, Yang B, Pan Y, Liu J, Long J. Ruthenium single-atom doping-driven modulation of Co 3O 4 spinel tetrahedral site 3d-orbital occupancy in lithium-oxygen batteries. NANOSCALE 2024; 16:8096-8107. [PMID: 38566568 DOI: 10.1039/d3nr06505g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Metal single-atom catalysts have attracted widespread attention in the field of lithium-oxygen batteries due to their unique active sites, high catalytic selectivity, and near total atomic utilization efficiency. Isolated metal atoms not only serve as the active sites themselves, but also function as modulators, reversely regulating the surface electronic structure of the support to enhance its inherent electrocatalytic activities. Despite the potential of isolated metal atom-driven active sites, understanding the structure-activity relationship remains a challenge. In this study, we present a ruthenium single-atom doping-driven cost-effective and durable tricobalt tetroxide electrocatalyst with excellent oxygen electrode electrocatalytic activity. The lithium-oxygen battery with this catalyst as the oxygen electrode demonstrates high performance, achieving a capacity of up to 25 000 mA h g-1 and maintaining good stability over 400 cycles at a current density of 100 mA g-1. This improvement is attributed to the exquisite control of the morphology and structure of the discharge product, lithium peroxide. The aresults of physical characterization and theoretical calculations reveal that isolated ruthenium atoms bond with the tetrahedral cobalt site, resulting in spin polarization enhancement and rearrangement of d orbital energy levels in cobalt. This rearrangement reduces the dz2 orbital occupancy and promotes their transfer to the octahedral cobalt site, thereby enhancing its adsorption capacity for the oxygen-containing intermediates, and ultimately increasing the electrocatalytic activity of the oxygen evolution reaction. This work presents an innovative strategy to regulate the catalytic activity of metal oxides by introducing another metal single atom.
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Affiliation(s)
- Yining Fan
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P. R. China.
| | - Ting Li
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P. R. China.
| | - Bin Li
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P. R. China.
| | - Anjun Hu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P. R. China.
| | - Dongfen Li
- College of Computer Science and Cyber Security, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P. R. China
| | - Kun Li
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P. R. China.
| | - Borui Yang
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P. R. China.
| | - Yu Pan
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P. R. China.
| | - Jing Liu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P. R. China.
| | - Jianping Long
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P. R. China.
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4
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Zhou Y, Xu Z, Tang L, Qin J, Lu G, Dong H, Bian Z, Zhu M. Internal Electric Field Facilitates Facet-Dependent Photocatalytic Cl - Utilization on BiOCl in High-Salinity Wastewater for Ammonium Removal. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:6049-6057. [PMID: 38525996 DOI: 10.1021/acs.est.4c00546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
High Cl- concentration in saline wastewater (e.g., landfill leachate) limits wastewater purification. Catalytic Cl- conversion into reactive chlorine species (RCS) arises as a sustainable strategy, making the salinity profitable for efficient wastewater treatment. Herein, aiming to reveal the structure-property relationship in Cl- utilization, bismuth oxychloride (BiOCl) photocatalysts with coexposed {001} and {110} facets are synthesized. With an increasing {001} ratio, the RCS production efficiency increases from 75.64 to 96.89 μg L-1 min-1. Mechanism investigation demonstrates the fast release of lattice Cl- as an RCS and the compensation of ambient Cl-. Correlation analysis between the internal electric field (IEF, parallel to [001]) and normalized efficiency on {110} (kRCS/S{110}, perpendicular to [001]) displays a coefficient of 0.86, validating that the promoted carrier dynamics eventually affects Cl- conversion on the open layered structure. The BiOCl photocatalyst is well behaved in ammonium (NH4+-N) degradation ranging from 20 to 800 mg N L-1 with different chlorinity (3-12 g L-1 NaCl). The sustainable Cl- conversion into RCS also realizes 85.4% of NH4+-N removal in the treatment of realistic landfill leachate (662 mg of N L-1 NH4+-N). The structure-property relationship provides insights into the design of efficient catalysts for environment remediation using ambient Cl-.
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Affiliation(s)
- Yuanyi Zhou
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
- Postdoctoral Innovation Practice Base & Guangdong Provincial Key Laboratory of Spine and Spinal Cord Reconstruction, The Fifth Affiliated Hospital of Jinan University (Heyuan Shenhe People's Hospital), Heyuan 517465, China
| | - Zhaofen Xu
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
| | - Lingfang Tang
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
| | - Junhao Qin
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Gang Lu
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
| | - Haojie Dong
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
| | - Zhenfeng Bian
- MOE Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Mingshan Zhu
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
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5
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Wang P, Zhang C, Ding J, Ji Y, Li Y, Zhang W. Motivating Inert Strontium Manganate with Iridium Dopants as Efficient Electrocatalysts for Oxygen Evolution in Acidic Electrolyte. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305662. [PMID: 37897152 DOI: 10.1002/smll.202305662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 10/14/2023] [Indexed: 10/29/2023]
Abstract
The search for high-performance and low-cost electrocatalysts in acid conditions still remains a challenging target. Herein, iridium (Ir) doped strontium manganate (named as Irx -SMO) is proposed as an efficient and durable low-iridium electrocatalyst for water oxidation in acidic media. The Ir0.1 -SMO with 75% less iridium in comparison to that of iridium dioxide (IrO2 ) exhibits excellent performance for oxygen evolution reaction (OER), which is even better than most of the iridium-based oxide electrocatalysts. The theoretical outcomes confirm the activation of the inert manganese sites in strontium manganate by the incorporation of iridium dopants. This work reveals the boosted effect of the iridium dopants on the OER activity of strontium manganate, providing a strategy to tune the activity of manganese-based perovskites in electrocatalysis.
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Affiliation(s)
- Piao Wang
- Henan Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng, 475004, China
| | - Changle Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Jiangsu, 215123, China
| | - Jiabao Ding
- Henan Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng, 475004, China
| | - Yujin Ji
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Jiangsu, 215123, China
| | - Youyong Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Jiangsu, 215123, China
- Macao Institute of Materials Science and Engineering, Macau University of Science and Technology, Taipa, 999078, Macau
| | - Weifeng Zhang
- Henan Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng, 475004, China
- Center for Topological Functional Materials, Henan University, Kaifeng, 475004, China
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6
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Chen J, Li R, Li B, Hu A, He M, Zhou B, Fan Y, Yan Z, Pan Y, Yang B, Li T, Li K, Li B, Long J. Engineering dual-crystal configurations in perovskite oxides boosts electrocatalysis of lithium-oxygen batteries. J Colloid Interface Sci 2024; 657:384-392. [PMID: 38056043 DOI: 10.1016/j.jcis.2023.11.179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 11/13/2023] [Accepted: 11/28/2023] [Indexed: 12/08/2023]
Abstract
Sculpting crystal configurations can vastly affect the charge and orbital states of electrocatalysts, fundamentally determining the catalytic activity of lithium-oxygen (Li-O2) batteries. However, the crucial role of crystal configurations in determining the electronic states has usually been neglected and needs to be further examined. Herein, we introduce orthorhombic and trigonal system into 0.5La0.6Sr0.4MnO3-0.5LaMn0.6Co0.4O3 (LSMCO) by selectively incorporating Sr and Co cations into the LaMnO3 framework during the sol-gel process, which is used to explore the relationship among crystal structure, electronic states and catalytic performance. Based on both experimental and theoretical calculations, the dual-crystal configurations induce strong lattice distortion, which promotes MnO6 octahedra vibration and shortened MnO bonds. Furthermore, the suppressed Jahn-Teller distortion weakens the orbital arrangement and accelerates the charge delocalization, leading to the conversion of Mn3+ to Mn4+ and optimized electronic states. Ultimately, this resulted in optimized Mn 3d and O 2p orbital hybridization and activated lattice oxygen function, leading to a significant improvement in electrocatalytic activity. The LSMCO catalyzed Li-O2 battery achieves enhanced discharge capacity of 14498.7 mAh/g and cycling stability of 258 cycles. This work highlights the significance of inner structure and presents a feasible strategy for engineering crystal configurations to boost electrocatalysis of Li-O2 batteries.
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Affiliation(s)
- Jiahao Chen
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China
| | - Runjing Li
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China
| | - Bin Li
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China
| | - Anjun Hu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China; College of Computer Science and Cyber Security, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China.
| | - Miao He
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, PR China
| | - Bo Zhou
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China
| | - Yining Fan
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China
| | - Zhongfu Yan
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China
| | - Yu Pan
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China
| | - Borui Yang
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China
| | - Ting Li
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China
| | - Kun Li
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China
| | - Baihai Li
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, PR China
| | - Jianping Long
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China.
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7
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Zhu D, Huang Y, Li R, Peng S, Wang P, Cao JJ. Constructing Active Cu 2+-O-Fe 3+ Sites at the CuO-Fe 3O 4 Interface to Promote Activation of Surface Lattice Oxygen. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:17598-17609. [PMID: 37906717 DOI: 10.1021/acs.est.3c05431] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Activating surface lattice oxygen (Olatt) through the modulation of metal-oxygen bond strength has proven to be an effective route for facilitating the catalytic degradation of volatile organic compounds (VOCs). Although this strategy has been implemented via the construction of the TM1-O-TM2 (TM represents a transition metal) structure in various reactions, the underlying principle requires exploration when using different TMs. Herein, the Cu2+-O-Fe3+ structure was created by developing CuO-Fe3O4 composites with enhanced interfacial effect, which exhibited superior catalytic activity to their counterparts, with T90 (the temperature of toluene conversion reaching 90%) decreasing by approximately 50 °C. Structural analyses and theoretical calculations demonstrated that the active Cu2+-O-Fe3+ sites at the CuO-Fe3O4 interface improved low-temperature reducibility and oxygen species activity. Particularly, X-ray absorption fine structure spectroscopy revealed the contraction and expansion of Cu-O and Fe-O bonds, respectively, which were responsible for the activation of the surface Olatt. A mechanistic study revealed that toluene can be oxidized by rapid dehydrogenation of methyl assisted by the highly active surface Olatt and subsequently undergo ring-opening and deep mineralization into CO2 following the Mars-van Krevelen mechanism. This study provided a novel strategy to explore interface-enhanced TM catalysts for efficient surface Olatt activation and VOCs abatement.
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Affiliation(s)
- Dandan Zhu
- Key Laboratory of Aerosol Chemistry & Physics, State Key Laboratory of Loess and Quaternary Geology (SKLLQG), Institute of Earth Environment, Chinese Academy of Sciences (CAS), Xi'an 710061, P. R. China
- CAS Center for Excellence in Quaternary Science and Global Change, Xi'an 710061, P. R. China
| | - Yu Huang
- Key Laboratory of Aerosol Chemistry & Physics, State Key Laboratory of Loess and Quaternary Geology (SKLLQG), Institute of Earth Environment, Chinese Academy of Sciences (CAS), Xi'an 710061, P. R. China
- CAS Center for Excellence in Quaternary Science and Global Change, Xi'an 710061, P. R. China
| | - Rong Li
- Key Laboratory of Aerosol Chemistry & Physics, State Key Laboratory of Loess and Quaternary Geology (SKLLQG), Institute of Earth Environment, Chinese Academy of Sciences (CAS), Xi'an 710061, P. R. China
- CAS Center for Excellence in Quaternary Science and Global Change, Xi'an 710061, P. R. China
| | - Shiqi Peng
- Key Laboratory of Aerosol Chemistry & Physics, State Key Laboratory of Loess and Quaternary Geology (SKLLQG), Institute of Earth Environment, Chinese Academy of Sciences (CAS), Xi'an 710061, P. R. China
- CAS Center for Excellence in Quaternary Science and Global Change, Xi'an 710061, P. R. China
| | - Pengge Wang
- Key Laboratory of Aerosol Chemistry & Physics, State Key Laboratory of Loess and Quaternary Geology (SKLLQG), Institute of Earth Environment, Chinese Academy of Sciences (CAS), Xi'an 710061, P. R. China
- CAS Center for Excellence in Quaternary Science and Global Change, Xi'an 710061, P. R. China
| | - Jun-Ji Cao
- Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100190, P. R. China
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8
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Chu K, Zong W, Xue G, Guo H, Qin J, Zhu H, Zhang N, Tian Z, Dong H, Miao YE, Roeffaers MBJ, Hofkens J, Lai F, Liu T. Cation Substitution Strategy for Developing Perovskite Oxide with Rich Oxygen Vacancy-Mediated Charge Redistribution Enables Highly Efficient Nitrate Electroreduction to Ammonia. J Am Chem Soc 2023; 145:21387-21396. [PMID: 37728869 PMCID: PMC10557098 DOI: 10.1021/jacs.3c06402] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Indexed: 09/21/2023]
Abstract
The electrocatalytic nitrate (NO3-) reduction reaction (eNITRR) is a promising method for ammonia synthesis. However, its efficacy is currently limited due to poor selectivity, largely caused by the inherent complexity of the multiple-electron processes involved. To address these issues, oxygen-vacancy-rich LaFe0.9M0.1O3-δ (M = Co, Ni, and Cu) perovskite submicrofibers have been designed from the starting material LaFeO3-δ (LF) by a B-site substitution strategy and used as the eNITRR electrocatalyst. Consequently, the LaFe0.9Cu0.1O3-δ (LF0.9Cu0.1) submicrofibers with a stronger Fe-O hybridization, more oxygen vacancies, and more positive surface potential exhibit a higher ammonia yield rate of 349 ± 15 μg h-1 mg-1cat. and a Faradaic efficiency of 48 ± 2% than LF submicrofibers. The COMSOL Multiphysics simulations demonstrate that the more positive surface of LF0.9Cu0.1 submicrofibers can induce NO3- enrichment and suppress the competing hydrogen evolution reaction. By combining a variety of in situ characterizations and density functional theory calculations, the eNITRR mechanism is revealed, where the first proton-electron coupling step (*NO3 + H+ + e- → *HNO3) is the rate-determining step with a reduced energy barrier of 1.83 eV. This work highlights the positive effect of cation substitution in promoting eNITRR properties of perovskites and provides new insights into the studies of perovskite-type electrocatalytic ammonia synthesis catalysts.
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Affiliation(s)
- Kaibin Chu
- The
Key Laboratory of Synthetic and Biological Colloids, Ministry of Education,
School of Chemical and Material Engineering, International Joint Research
Laboratory for Nano Energy Composites, Jiangnan
University, Wuxi 214122, China
- Department
of Chemistry, KU Leuven, Celestijnenlaan 200F, Leuven 3001, Belgium
| | - Wei Zong
- The
Key Laboratory of Synthetic and Biological Colloids, Ministry of Education,
School of Chemical and Material Engineering, International Joint Research
Laboratory for Nano Energy Composites, Jiangnan
University, Wuxi 214122, China
| | - Guohao Xue
- The
Key Laboratory of Synthetic and Biological Colloids, Ministry of Education,
School of Chemical and Material Engineering, International Joint Research
Laboratory for Nano Energy Composites, Jiangnan
University, Wuxi 214122, China
| | - Hele Guo
- Department
of Chemistry, KU Leuven, Celestijnenlaan 200F, Leuven 3001, Belgium
| | - Jingjing Qin
- The
Key Laboratory of Synthetic and Biological Colloids, Ministry of Education,
School of Chemical and Material Engineering, International Joint Research
Laboratory for Nano Energy Composites, Jiangnan
University, Wuxi 214122, China
| | - Haiyan Zhu
- The
Key Laboratory of Synthetic and Biological Colloids, Ministry of Education,
School of Chemical and Material Engineering, International Joint Research
Laboratory for Nano Energy Composites, Jiangnan
University, Wuxi 214122, China
| | - Nan Zhang
- The
Key Laboratory of Synthetic and Biological Colloids, Ministry of Education,
School of Chemical and Material Engineering, International Joint Research
Laboratory for Nano Energy Composites, Jiangnan
University, Wuxi 214122, China
| | - Zhihong Tian
- Engineering
Research Center for Nanomaterials, Henan
University, Kaifeng 475004, China
| | - Hongliang Dong
- Center
for High Pressure Science and Technology Advanced Research, Shanghai 201203, China
| | - Yue-E. Miao
- State
Key Laboratory for Modification of Chemical Fibers and Polymer Materials,
College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Maarten B. J. Roeffaers
- cMACS,
Department
of Microbial and Molecular Systems, KU Leuven, Celestijnenlaan 200F, Leuven 3001, Belgium
| | - Johan Hofkens
- Department
of Chemistry, KU Leuven, Celestijnenlaan 200F, Leuven 3001, Belgium
- Max
Planck Institute for Polymer Research, Ackermannweg 10, Mainz 55128, Germany
| | - Feili Lai
- Department
of Chemistry, KU Leuven, Celestijnenlaan 200F, Leuven 3001, Belgium
- Max
Planck Institute for Polymer Research, Ackermannweg 10, Mainz 55128, Germany
- John
A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Tianxi Liu
- The
Key Laboratory of Synthetic and Biological Colloids, Ministry of Education,
School of Chemical and Material Engineering, International Joint Research
Laboratory for Nano Energy Composites, Jiangnan
University, Wuxi 214122, China
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9
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Huang H, Huang A, Liu D, Han W, Kuo CH, Chen HY, Li L, Pan H, Peng S. Tailoring Oxygen Reduction Reaction Kinetics on Perovskite Oxides via Oxygen Vacancies for Low-Temperature and Knittable Zinc-Air Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2303109. [PMID: 37247611 DOI: 10.1002/adma.202303109] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/18/2023] [Indexed: 05/31/2023]
Abstract
High kinetics oxygen reduction reaction (ORR) electrocatalysts under low temperature are critical and highly desired for temperature-tolerant energy conversion and storage devices, but remain insufficiently investigated. Herein, oxygen vacancy-rich porous perovskite oxide (CaMnO3 ) nanofibers coated with reduced graphene oxide coating (V-CMO/rGO) are developed as the air electrode catalyst for low-temperature and knittable Zn-air batteries. V-CMO/rGO exhibits top-level ORR activity among perovskite oxides and shows impressive kinetics under low temperature. Experimental and theoretical calculation results reveal that the synergistic effect between metal atoms and oxygen vacancies, as well as the accelerated kinetics and enhanced electric conductivity and mass transfer over the rGO coated nanofiber 3D network contribute to the enhanced catalytic activity. The desorption of ORR intermediate is promoted by the regulated electron filling. The V-CMO/rGO drives knittable and flexible Zn-air batteries under a low temperature of -40 °C with high peak power density of 56 mW cm-2 and long cycle life of over 80 h. This study provides insight of kinetically active catalyst and facilitates the ZABs application in harsh environment.
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Affiliation(s)
- Hongjiao Huang
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
| | - Aoming Huang
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
| | - Di Liu
- Institute of Applied Physics and Materials Engineering, University of Macau, Macau, 999078, China
| | - Wentao Han
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
| | - Chun-Han Kuo
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Han-Yi Chen
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Linlin Li
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
| | - Hui Pan
- Institute of Applied Physics and Materials Engineering, University of Macau, Macau, 999078, China
| | - Shengjie Peng
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
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10
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Sun Y, Xie J, Fu Z, Zhang H, Yao Y, Zhou Y, Wang X, Wang S, Gao X, Tang Z, Li S, Wang X, Nie K, Yang Z, Yan Y. Boosting CO 2 Electroreduction to C 2H 4 via Unconventional Hybridization: High-Order Ce 4+ 4f and O 2p Interaction in Ce-Cu 2O for Stabilizing Cu . ACS NANO 2023. [PMID: 37410800 DOI: 10.1021/acsnano.3c03952] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/08/2023]
Abstract
Efficient conversion of carbon dioxide (CO2) into value-added materials and feedstocks, powered by renewable electricity, presents a promising strategy to reduce greenhouse gas emissions and close the anthropogenic carbon loop. Recently, there has been intense interest in Cu2O-based catalysts for the CO2 reduction reaction (CO2RR), owing to their capabilities in enhancing C-C coupling. However, the electrochemical instability of Cu+ in Cu2O leads to its inevitable reduction to Cu0, resulting in poor selectivity for C2+ products. Herein, we propose an unconventional and feasible strategy for stabilizing Cu+ through the construction of a Ce4+ 4f-O 2p-Cu+ 3d network structure in Ce-Cu2O. Experimental results and theoretical calculations confirm that the unconventional orbital hybridization near Ef based on the high-order Ce4+ 4f and 2p can more effectively inhibit the leaching of lattice oxygen, thereby stabilizing Cu+ in Ce-Cu2O, compared with traditional d-p hybridization. Compared to pure Cu2O, the Ce-Cu2O catalyst increased the ratio of C2H4/CO by 1.69-fold during the CO2RR at -1.3 V. Furthermore, in situ and ex situ spectroscopic techniques were utilized to track the oxidation valency of copper under CO2RR conditions with time resolution, identifying the well-maintained Cu+ species in the Ce-Cu2O catalyst. This work not only presents an avenue to CO2RR catalyst design involving the high-order 4f and 2p orbital hybridization but also provides deep insights into the metal-oxidation-state-dependent selectivity of catalysts.
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Affiliation(s)
- Yanfei Sun
- State Key Lab of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Jiangzhou Xie
- School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Zhenzhen Fu
- State Key Lab of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Huiying Zhang
- State Key Lab of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Yebo Yao
- State Key Lab of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Yixiang Zhou
- State Key Lab of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Xiaoxuan Wang
- State Key Lab of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Shiyu Wang
- State Key Lab of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Xueying Gao
- State Key Lab of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Zheng Tang
- State Key Lab of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Shuyuan Li
- State Key Lab of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Xiaojun Wang
- State Key Lab of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Kaiqi Nie
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Zhiyu Yang
- State Key Lab of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Yiming Yan
- State Key Lab of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
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11
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Zhang D, Li Y, Wang P, Qu J, Li Y, Zhan S. Dynamic active-site induced by host-guest interactions boost the Fenton-like reaction for organic wastewater treatment. Nat Commun 2023; 14:3538. [PMID: 37322015 DOI: 10.1038/s41467-023-39228-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 06/05/2023] [Indexed: 06/17/2023] Open
Abstract
In heterogeneous catalysis, uncovering the dynamic evolution of active sites in the working conditions is crucial to realizing increased activity and enhanced stability of catalyst in Fenton-like activation. Herein, we capture the dynamic changes in the unit cell of Co/La-SrTiO3 catalyst during the exemplary peroxymonosulfate activation process using X-ray absorption spectroscopy and in situ Raman spectroscopy, revealing the substrate tuned its structural evolution, which is the reversible stretching vibration of O-Sr-O and Co/Ti-O bonds in different orientations. This process effectively promotes the generation of key SO5* intermediates, which is beneficial to the formation of 1O2 and SO4•- from persulfate on the Co active site. Density functional theory and X-ray absorption spectroscopy show that the optimized structural distortion enhanced the metal-oxygen bond strength by tuning the eg orbitals and increased the number of transferred electrons to peroxymonosulfate by about 3-fold, achieving excellent efficiency and stability in removing organic pollutants.
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Affiliation(s)
- Dongpeng Zhang
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering, Nankai University, Tianjin, China
| | - Yanxiao Li
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering, Nankai University, Tianjin, China
| | - Pengfei Wang
- Tianjin Key Lab Clean Energy & Pollutant Control, School of Energy and Environmental Engineering, Hebei University of Technology, 300130, Tianjin, China
| | - Jinyong Qu
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering, Nankai University, Tianjin, China
| | - Yi Li
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), 300072, Tianjin, China.
- Joint School of National University of Singapore and Tianjin University, Fuzhou International Campus, Tianjin University, Binhai New City, 350207, Fuzhou, China.
| | - Sihui Zhan
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering, Nankai University, Tianjin, China.
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12
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Huang Q, Zhao P, Lv L, Zhang W, Pan B. Redox-Induced In Situ Growth of MnO 2 with Rich Oxygen Vacancies over Monolithic Copper Foam for Boosting Toluene Combustion. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023. [PMID: 37289934 DOI: 10.1021/acs.est.3c02103] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Catalytic combustion has been known to be an effective technique in volatile organic compound (VOC) abatement. Developing monolithic catalysts with high activity at low temperatures is vital yet challenging in industrial applications. Herein, monolithic MnO2-Ov/CF catalysts were fabricated via the in situ growth of K2CuFe(CN)6 (CuFePBA, a family of metal-organic frames) over copper foam (CF) followed by a redox-etching route. The as-synthesized monolith MnO2-Ov-0.04/CF catalyst displays a superior low-temperature activity (T90% = 215 °C) and robust durability for toluene elimination even in the presence of 5 vol % water. Experimental results reveal that the CuFePBA template not only guides the in situ growth of δ-MnO2 with high loading over CF but also acts as a source of dopant to create more oxygen vacancies and weaken the strength of the Mn-O bond, which considerably improves the oxygen activation ability of δ-MnO2 and consequently boosts the low-temperature catalytic activity of the monolith MnO2-Ov-0.04/CF toward toluene oxidation. In addition, the reaction intermediate and proposed mechanism in the MnO2-Ov-0.04/CF mediated catalytic oxidation process were investigated. This study provides new insights into the development of highly active monolithic catalysts for the low-temperature oxidation of VOCs.
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Affiliation(s)
- Qianlin Huang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Puzhen Zhao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Lu Lv
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Weiming Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Bingcai Pan
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
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13
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Zhang T, Zhao Z, Zhang D, Liu X, Wang P, Li Y, Zhan S. Superexchange-induced Pt-O-Ti 3+ site on single photocatalyst for efficient H 2 production with organics degradation in wastewater. Proc Natl Acad Sci U S A 2023; 120:e2302873120. [PMID: 37253005 PMCID: PMC10265997 DOI: 10.1073/pnas.2302873120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 04/24/2023] [Indexed: 06/01/2023] Open
Abstract
Efficient photocatalytic H2 production from wastewater instead of pure water is a dual solution to the environmental and energy crisis, but due to the rapid recombination of photoinduced charge in the photocatalyst and inevitable electron depletion caused by organic pollutants, a significant challenge of dual-functional photocatalysis (simultaneous oxidative and reductive reactions) in single catalyst is designing spatial separation path for photogenerated charges at atomic level. Here, we designed a Pt-doped BaTiO3 single catalyst with oxygen vacancies (BTPOv) that features Pt-O-Ti3+ short charge separation site, which enables excellent H2 production performance (1519 μmol·g-1·h-1) while oxidizing moxifloxacin (k = 0.048 min-1), almost 43 and 98 times than that of pristine BaTiO3 (35 μmol·g-1·h-1 and k = 0.00049 min-1). The efficient charge separation path is demonstrated that the oxygen vacancies extract photoinduced charge from photocatalyst to catalytic surface, and the adjacent Ti3+ defects allow rapid migration of electrons to Pt atoms through the superexchange effect for H* adsorption and reduction, while the holes will be confined in Ti3+ defects for oxidation of moxifloxacin. Impressively, the BTPOv shows an exceptional atomic economy and potential for practical applications, a best H2 production TOF (370.4 h-1) among the recent reported dual-functional photocatalysts and exhibiting excellent H2 production activity in multiple types of wastewaters.
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Affiliation(s)
- Tao Zhang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, 300350Tianjin, China
| | - Zhiyong Zhao
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, 300350Tianjin, China
| | - Dongpeng Zhang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, 300350Tianjin, China
| | - Xingyu Liu
- School of Environmental Science and Engineering, Tiangong University, 300387Tianjin, China
| | - Pengfei Wang
- School of Energy and Environmental Engineering, Hebei University of Technology, 300401Tianjin, China
| | - Yi Li
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences Department of Chemistry, School of Science, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, 300072Tianjin, China
| | - Sihui Zhan
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, 300350Tianjin, China
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14
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Jiang K, Li Z, Zhang Z, Li J, Qi X, Zhou J, Wang X, Wei H, Chu H. Stable and Active Au Catalyst Supported on CeMnO 3 Perovskite for Selective Oxidation of Glycerol. Inorg Chem 2023; 62:8145-8157. [PMID: 37186870 DOI: 10.1021/acs.inorgchem.3c00444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
The selective oxidation of glycerol holds promise to transform glycerol into value-added chemicals. However, it remains a big challenge to achieve satisfactory selectivity toward the specific product at high conversion due to the multiple reaction pathways. Here, we prepare a hybrid catalyst via supporting Au nanoparticles on CeMnO3 perovskite with a modest surface area, achieving promoted conversion of glycerol (90.1%) and selectivity of glyceric acid (78.5%), which are much higher than those of CeMnOx solid-solution-supported Au catalysts with larger surface area and other Ce-based or Mn-based Au catalysts. The strong interaction between Au and CeMnO3 perovskite facilitates the electron transfer from the B-site metal (Mn) in the CeMnO3 perovskite to Au and stabilizes Au nanoparticles, which results in the enhanced catalytic activity and stability for glycerol oxidation. Valence band photoemission spectral analysis reveals that the uplifted d-band center of Au/CeMnO3 promotes the adsorption of the glyceraldehyde intermediate on the catalyst surface, which benefits further oxidation of glyceraldehyde into glyceric acid. The flexibility of the perovskite support provides a promising strategy for the rational design of high-performance glycerol oxidation catalysts.
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Affiliation(s)
- Kunhong Jiang
- College of Chemistry and Chemical Engineering, Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource Molecules, Inner Mongolia University, Hohhot 010021, China
| | - Zhenyu Li
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Zehao Zhang
- College of Chemistry and Chemical Engineering, Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource Molecules, Inner Mongolia University, Hohhot 010021, China
| | - Jiefei Li
- College of Chemistry and Chemical Engineering, Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource Molecules, Inner Mongolia University, Hohhot 010021, China
| | - Xingyue Qi
- College of Chemistry and Chemical Engineering, Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource Molecules, Inner Mongolia University, Hohhot 010021, China
| | - Jian Zhou
- College of Chemistry and Chemical Engineering, Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource Molecules, Inner Mongolia University, Hohhot 010021, China
| | - Xiaojing Wang
- College of Chemistry and Chemical Engineering, Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource Molecules, Inner Mongolia University, Hohhot 010021, China
| | - Hang Wei
- College of Chemistry and Chemical Engineering, Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource Molecules, Inner Mongolia University, Hohhot 010021, China
| | - Haibin Chu
- College of Chemistry and Chemical Engineering, Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource Molecules, Inner Mongolia University, Hohhot 010021, China
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15
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Zhou D, Le F, Jia W, Chen X. In Situ Exsolution of Ba 3(VO 4) 2 Nanoparticles on a V-Doped BaCoO 3-δ Perovskite Oxide with Enhanced Activity for Electrocatalytic Hydrogen Evolution. Inorg Chem 2023; 62:8001-8009. [PMID: 37167416 DOI: 10.1021/acs.inorgchem.3c00916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The successful preparation of a perovskite-based heterostructure is important for broadening the applications of perovskites in the field of electrocatalysis, especially in a hydrogen evolution reaction (HER). Nevertheless, the limited active sites of perovskites severely hindered the HER properties. Herein, an in situ exsolution method was used to construct a nanocomposite based on V-doped BaCoO3-δ decorated with Ba3(VO4)2 (BVCO19) for alkaline HER. The exsolved Ba3(VO4)2 can induce more Co4+ ions on BaCoO3-δ, which serves as active sites for the release of H2. Meanwhile, by regulating the valency of V and Co species, the catalyst can reach a charge balance by generating more oxygen vacancies, which greatly facilitates the adsorption and dissociation of H2O molecules. The synergistic effect between the oxygen vacancies and high-valence Co4+ leads to an enhanced HER performance of BVCO19. The as-obtained catalyst delivers a low overpotential of 194 mV at 10 mA cm-2 as well as impressive stability for 100 h in alkaline media, which outperforms pristine BaCoO3-δ and most of the nonprecious-based perovskite oxides. This work provides new insights into the preparation of perovskite-based heterostructure for boosting HER.
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Affiliation(s)
- Dehuo Zhou
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources; Key Laboratory of Advanced Functional Materials, Autonomous Region; Institute of Applied Chemistry, College of Chemistry, Xinjiang University, Urumqi 830046, Xinjiang, P. R. China
| | - Fuhe Le
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources; Key Laboratory of Advanced Functional Materials, Autonomous Region; Institute of Applied Chemistry, College of Chemistry, Xinjiang University, Urumqi 830046, Xinjiang, P. R. China
| | - Wei Jia
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources; Key Laboratory of Advanced Functional Materials, Autonomous Region; Institute of Applied Chemistry, College of Chemistry, Xinjiang University, Urumqi 830046, Xinjiang, P. R. China
| | - Xianhao Chen
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources; Key Laboratory of Advanced Functional Materials, Autonomous Region; Institute of Applied Chemistry, College of Chemistry, Xinjiang University, Urumqi 830046, Xinjiang, P. R. China
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16
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Shi W, Dong X, Luo Y, Wang R, Wang G, Chen J, Liu C, Zhang J. Regulation of the B Site at La(Ni 0.1)MnO 3 Perovskite Decorated with N-Doped Carbon for a Bifunctional Electrocatalyst in Zn–Air Batteries. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c03984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Weiyi Shi
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Xinran Dong
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Yan Luo
- Sichuan Honghua Industrial Co., Ltd., Leshan 614200, China
| | - Ruilin Wang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Gang Wang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Jinwei Chen
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Can Liu
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Jie Zhang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
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17
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Yu D, He J, Xie T, Yang J, Wang J, Xie J, Shi H, Gao Z, Xiang B, Dionysiou DD. Boosting catalytic activity of SrCoO 2.52 perovskite by Mn atom implantation for advanced peroxymonosulfate activation. JOURNAL OF HAZARDOUS MATERIALS 2023; 442:130085. [PMID: 36193611 DOI: 10.1016/j.jhazmat.2022.130085] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 09/13/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
Material-enhanced heterogeneous peroxymonosulfate (PMS) activation for degradation of antibiotic in water has attracted intensive attention. However, one challenge is the electron transfer efficiency from the material to PMS for reactive oxygen species (ROS) production. Considering that the B-sites of perovskite oxides are closely associated with the catalytic performance, partial substitution of the B-sites of perovskite oxides can enhance the redox cycle of metals. Consequently, adjusting the ratio of each element at the B site can introduce oxygen vacancies on the surface of perovskite. Herein, a method was developed in which manganese (Mn) partially substitutes B-sites to modify surface properties of SrCoO2.52 perovskite oxides, resulting in the enhancement of catalytic activity. In degradation kinetics studies using SrCoMnO3-δ-0.5/PMS (SrCoMnO3-δ-0.5 denotes that the molar substitution of Mn at the B site of SrCoO2.52 perovskite oxide is 0.5) reaction system and sulfamethoxazole (SMX) as the target pollutant, it was found that the reaction rate constant (kobs) is 0.287 min-1 which is 2.4 times that of SrCoO2.52/PMS system. Experimental and theoretical analyses revealed that Mn-O covalent bonding governs the intrinsic catalytic activity of SrCoMnO3-δ-0.5 perovskite oxides. The Mn sites exhibits stronger adsorption energy with PMS than the Co sites, facilitating the breaking of O-O bond. Simultaneously, oxygen vacancies and surface adsorbed oxygen species have a synergistic effect for PMS adsorption. This work can provide a potential route in developing advanced catalysts based on manipulation of the B-sites of perovskite oxides for PMS activation.
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Affiliation(s)
- Dan Yu
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China; Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Jiahong He
- Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, Chongqing 402160, China.
| | - Taiping Xie
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China; School of Materials Science and Engineering, Yangtze Normal University, Chongqing 408100, China.
| | - Jun Yang
- Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Jiankang Wang
- School of Materials Science and Engineering, Yangtze Normal University, Chongqing 408100, China
| | - Jinchen Xie
- Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Huiting Shi
- Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Zongyu Gao
- Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Bin Xiang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China.
| | - Dionysios D Dionysiou
- Environmental Engineering and Science Program, Department of Chemical and Environmental Engineering (ChEE), 705 Engineering Research Center, University of Cincinnati, Cincinnati, OH 45221-0012, USA.
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18
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Synthesis, characterization, and use of nanocast LaMnO3 perovskites in the catalytic production of imine by the gas-phase oxidative coupling of benzyl alcohol to aniline. CATAL COMMUN 2023. [DOI: 10.1016/j.catcom.2023.106606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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19
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Duan X, Zhao T, Niu B, Wei Z, Li G, Zhang Z, Cheng J, Hao Z. Simultaneously Constructing Active Sites and Regulating Mn-O Strength of Ru-Substituted Perovskite for Efficient Oxidation and Hydrolysis Oxidation of Chlorobenzene. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2205054. [PMID: 36437038 PMCID: PMC9875690 DOI: 10.1002/advs.202205054] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 10/28/2022] [Indexed: 06/16/2023]
Abstract
Chlorinated volatile organic compounds (CVOCs) are a class of hazardous pollutants that severely threaten environmental safety and human health. Although the catalytic oxidation technique for CVOCs elimination is effective, enhancing the catalytic efficiency and simultaneously inhibiting the production of organic byproducts is still of great challenge. Herein, Ru-substituted LaMn(Ru)O3+ δ perovskite with Ru-O-Mn structure and weakened Mn-O bond strength has been developed for catalytic oxidation of chlorobenzene (CB). The formed Ru-O-Mn structure serves as favorable sites for CB adsorption and activation, while the weakening of Mn-O bond strength facilitates the formation of active oxygen species and improves oxygen mobility and catalyst reducibility. Therefore, LaMn(Ru)O3+ δ exhibits superior low-temperature activity with the temperature of 90% CB conversion decreasing by over 90 °C compared with pristine perovskite, and the deep oxidation of chlorinated byproducts produced in low temperature is also accelerated. Furthermore, the introduction of water vapor into reaction system triggers the process of hydrolysis oxidation that promotes CB destruction and inhibits the generation of chlorinated byproducts, due to the higher-activity *OOH species generated from the dissociated H2 O reacting with adsorbed oxygen. This work can provide a unique, high-efficiency, and facile strategy for CVOCs degradation and environmental improvement.
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Affiliation(s)
- Xiaoxiao Duan
- National Engineering Laboratory for VOCs Pollution Control Material & TechnologyResearch Center for Environmental Material and Pollution Control TechnologyUniversity of Chinese Academy of SciencesBeijing101408P. R. China
| | - Ting Zhao
- National Engineering Laboratory for VOCs Pollution Control Material & TechnologyResearch Center for Environmental Material and Pollution Control TechnologyUniversity of Chinese Academy of SciencesBeijing101408P. R. China
| | - Ben Niu
- National Engineering Laboratory for VOCs Pollution Control Material & TechnologyResearch Center for Environmental Material and Pollution Control TechnologyUniversity of Chinese Academy of SciencesBeijing101408P. R. China
| | - Zheng Wei
- National Engineering Laboratory for VOCs Pollution Control Material & TechnologyResearch Center for Environmental Material and Pollution Control TechnologyUniversity of Chinese Academy of SciencesBeijing101408P. R. China
| | - Ganggang Li
- National Engineering Laboratory for VOCs Pollution Control Material & TechnologyResearch Center for Environmental Material and Pollution Control TechnologyUniversity of Chinese Academy of SciencesBeijing101408P. R. China
| | - Zhongshen Zhang
- National Engineering Laboratory for VOCs Pollution Control Material & TechnologyResearch Center for Environmental Material and Pollution Control TechnologyUniversity of Chinese Academy of SciencesBeijing101408P. R. China
| | - Jie Cheng
- National Engineering Laboratory for VOCs Pollution Control Material & TechnologyResearch Center for Environmental Material and Pollution Control TechnologyUniversity of Chinese Academy of SciencesBeijing101408P. R. China
| | - Zhengping Hao
- National Engineering Laboratory for VOCs Pollution Control Material & TechnologyResearch Center for Environmental Material and Pollution Control TechnologyUniversity of Chinese Academy of SciencesBeijing101408P. R. China
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20
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Liu Z, Fan S, Li X, Niu Z, Wang J, Bai C, Duan J, Tadé MO, Liu S. Rational Design of Hierarchical Alloy-Containing Z-Scheme Catalytic Materials toward Effective Conversion of Nitric Oxide Toxic Species under Mild Conditions. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c03719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Zhiyuan Liu
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
| | - Shiying Fan
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
| | - Xinyong Li
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
| | - Zhaodong Niu
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
| | - Jing Wang
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
| | - Chunpeng Bai
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
| | - Jun Duan
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
| | - Moses O. Tadé
- Department of Chemical Engineering, Curtin University, GPO Box U1987, Perth, Western Australia 6845, Australia
| | - Shaomin Liu
- Department of Chemical Engineering, Curtin University, GPO Box U1987, Perth, Western Australia 6845, Australia
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21
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Catalytic Degradation of Toluene over MnO2/LaMnO3: Effect of Phase Type of MnO2 on Activity. Catalysts 2022. [DOI: 10.3390/catal12121666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Series of α, β, γ, δ type MnO2 supported on LaMnO3 perovskite was developed by a one-pot synthesis route. Compared with α-MnO2, β-MnO2, γ-MnO2, δ-MnO2 and LaMnO3 oxides, all MnO2/LaMnO3 showed promotional catalytic performance for toluene degradation. Among them, α-MnO2/LaMnO3 holds the best active and mineralization efficiency. By the analysis of N2 adsorption-desorption, XPS and H2-TPR, it can be inferred that the improved activity should be ascribed to the higher proportion of lattice oxygen, better low-temperature reducibility and larger specific surface area. Besides, the byproducts from the low-temperature reaction of toluene oxidation were detected by a TD/GC-MS, confirming the presence of the intermediates. Combined with the in-situ DRIFTS, the catalytic degradation path of toluene oxidation has also been discussed in depth.
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22
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Liu L, Liu Y, Liu J, Zhou B, Tang Y, Ju J, Guo M. Enhanced catalytic oxidation of toluene over manganese-based multi-metal oxides synthesized by ozone driving redox reaction. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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23
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Devi VS, Athika M, Elumalai P. Vacancy‐induced LaMnO
3
Perovskite as Bifunctional Air‐breathing Electrode for Rechargeable Lithium‐Air Battery. ChemistrySelect 2022. [DOI: 10.1002/slct.202202554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Vaithiyanathan Sankar Devi
- Electrochemical Energy Storage Lab Department of Green Energy Technology Madanjeet School of Green Energy Technologies Pondicherry University Puducherry 605014 India
| | - Mattath Athika
- Electrochemical Energy Storage Lab Department of Green Energy Technology Madanjeet School of Green Energy Technologies Pondicherry University Puducherry 605014 India
| | - Perumal Elumalai
- Electrochemical Energy Storage Lab Department of Green Energy Technology Madanjeet School of Green Energy Technologies Pondicherry University Puducherry 605014 India
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24
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Mi J, Zhang G, Zhang Q, Zhao W, Cao Y, Liu F, Jiang L. Defects modulating on MgAl-hydrotalcite nanosheet with improved performance in carbonyl sulfide elimination via a hydroxyl chemical looping route. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.117827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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25
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Zhang Y, Zhang L, Lu J, Liao W, Zhang J, Gao X, Luo Y, Zhu W. Investigation of defect-rich CeO 2 catalysts for super low-temperature catalytic oxidation and durable styrene removal. CHEMOSPHERE 2022; 303:134863. [PMID: 35561759 DOI: 10.1016/j.chemosphere.2022.134863] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 04/22/2022] [Accepted: 05/04/2022] [Indexed: 06/15/2023]
Abstract
Spherical cerium dioxide (CeO2-S) nanoparticles were successfully prepared using a solvothermal method, and their performances in catalytic oxidation reactions were studied. The CeO2-S catalyst showed superior low-temperature catalytic activity for styrene removal (T90 = 118 °C, GHSV = 18,000 h-1) compared with commercial CeO2. The characterization results showed that there were numerous oxygen defects in CeO2-S that were key to its catalytic performance at low temperatures, high redox properties, and high adsorption capacity for the reaction gases (O2 and styrene). Moreover, the catalytic performance of CeO2-S was highly stable (132 h), and the particles were reusable. FTIR and in-situ DRIFTS results showed that the type of intermediates formed during the oxidation of styrene determined the CeO2 catalytic stability, and the main intermediates were bidentate carbonate species that accumulated on the surface of deactivated CeO2-S and were not thermally stable. Moreover, the soft carbon that also deposited on CeO2-S during the reaction was easily decomposed at higher temperatures. The role of the oxygen vacancies on the CeO2-S catalyst was further revealed by correlating the concentration of oxygen vacancies and the accumulation of coke on the catalyst surface.
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Affiliation(s)
- Ying Zhang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, PR China; The Innovation Team for Volatile Organic Compounds Pollutants Control and Resource Utilization of Yunnan Province/The Higher Educational Key Laboratory for Odorous Volatile Organic Compounds Pollutants Control of Yunnan Province, Kunming, 650500, PR China
| | - Liming Zhang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, PR China; The Innovation Team for Volatile Organic Compounds Pollutants Control and Resource Utilization of Yunnan Province/The Higher Educational Key Laboratory for Odorous Volatile Organic Compounds Pollutants Control of Yunnan Province, Kunming, 650500, PR China
| | - Jichang Lu
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, PR China; The Innovation Team for Volatile Organic Compounds Pollutants Control and Resource Utilization of Yunnan Province/The Higher Educational Key Laboratory for Odorous Volatile Organic Compounds Pollutants Control of Yunnan Province, Kunming, 650500, PR China
| | - Wei Liao
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, PR China; The Innovation Team for Volatile Organic Compounds Pollutants Control and Resource Utilization of Yunnan Province/The Higher Educational Key Laboratory for Odorous Volatile Organic Compounds Pollutants Control of Yunnan Province, Kunming, 650500, PR China
| | - Jin Zhang
- Yunnan University/Yunnan Key Laboratory of Micro/Nano Materials & Technology, Kunming, 650500, PR China
| | - Xiaoya Gao
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, PR China; The Innovation Team for Volatile Organic Compounds Pollutants Control and Resource Utilization of Yunnan Province/The Higher Educational Key Laboratory for Odorous Volatile Organic Compounds Pollutants Control of Yunnan Province, Kunming, 650500, PR China
| | - Yongming Luo
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, PR China; The Innovation Team for Volatile Organic Compounds Pollutants Control and Resource Utilization of Yunnan Province/The Higher Educational Key Laboratory for Odorous Volatile Organic Compounds Pollutants Control of Yunnan Province, Kunming, 650500, PR China; Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650093, PR China.
| | - Wenjie Zhu
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, PR China; The Innovation Team for Volatile Organic Compounds Pollutants Control and Resource Utilization of Yunnan Province/The Higher Educational Key Laboratory for Odorous Volatile Organic Compounds Pollutants Control of Yunnan Province, Kunming, 650500, PR China.
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26
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Chen L, Zhao X, Dong F, Sun Y. Substitution of B-site in BaSb 2O 6 perovskite for surface lattice oxygen activation and boosted photocatalytic toluene mineralization. JOURNAL OF HAZARDOUS MATERIALS 2022; 436:129089. [PMID: 35596985 DOI: 10.1016/j.jhazmat.2022.129089] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/23/2022] [Accepted: 05/03/2022] [Indexed: 06/15/2023]
Abstract
Perovskite oxides possess significant prospects in environment application because of their compositional versatility and controllable band structure for redox reactions. Nevertheless, low charge separation and limited reactants activation restrict their performance for practical applications. In this work, we reveal that the electronic structure of BaSb2O6 can be modulated effectively by substituting B-site cations, leading to broadened light response range and promoted carrier separation. The Ga atoms substitute the Sb atoms to form GaO bonds and enable octahedral distortion, resulting in the electron transfer from Ga atom to O atoms and realizing lattice oxygen activation. The unique electronic localization in the BaSb2O6 surface facilitates the adsorption and activation of O2, H2O, toluene and reaction intermediates, thus enhancing ROS generation for toluene mineralization. Compared with the performance of pure BaSb2O6, the photocatalytic toluene degradation and mineralization of 5 wt% Ga-BaSb2O6 are increased by 4.5 times and 4.8 times without obvious deactivation. The reported facile and valid strategy for in situ controlling of B-site in perovskite and their unique effects on the electronic structure would benefit the development of high-performance perovskites for environmental applications.
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Affiliation(s)
- Lvcun Chen
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313000, China; The Center of New Energy Materials and Technology, School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China
| | - Xiaoli Zhao
- School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Fan Dong
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313000, China; Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China; State Centre for International Cooperation on Designer Low Carbon and Environmental Materials (CDLCEM), School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Yanjuan Sun
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313000, China; School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu 611731, China.
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27
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Shan C, Zhang Y, Zhao Q, Fu K, Zheng Y, Han R, Liu C, Ji N, Wang W, Liu Q. Acid Etching-Induced In Situ Growth of λ-MnO 2 over CoMn Spinel for Low-Temperature Volatile Organic Compound Oxidation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:10381-10390. [PMID: 35709483 DOI: 10.1021/acs.est.2c02483] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Surface lattice oxygen is crucial to the degradation of volatile organic compounds (VOCs) over transition metal oxides according to the Mars-van Krevelen mechanism. Herein, λ-MnO2 in situ grown on the surface of CoMn spinel was prepared by acid etching of corresponding spinel catalysts (CoMn-Hx-Ty) for VOC oxidation. Experimental and relevant theoretical exploration revealed that acid etching on the CoMn spinel surface could decrease the electron cloud density around the O atom and weaken the adjacent Mn-O bond due to the fracture of the surface Co-O bond, facilitating electron transfer and subsequently the activation of surface lattice oxygen. The obtained CoMn-H1-T1 exhibited an excellent catalytic performance with a 90% acetone conversion at 149 °C, which is 42 °C lower than that of CoMn spinel. Furthermore, the partially maintained spinel structure led to better stability than pure λ-MnO2. In situ diffuse reflectance infrared Fourier transform spectroscopy confirmed a possible degradation pathway where adsorptive acetone converted into formate and acetate species and into CO2, in which the consumption of acetate was identified as the rate-limiting step. This strategy can improve the catalytic performance of metal oxides by activating surface lattice oxygen, to broaden their application in VOC oxidation.
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Affiliation(s)
- Cangpeng Shan
- Department of Environmental Science and Technology, Tianjin Key Lab of Indoor Air Environmental Quality Control, State Key Laboratory of Engines, Tianjin University, Tianjin 300350, China
| | - Yan Zhang
- Department of Environmental Science and Technology, Tianjin Key Lab of Indoor Air Environmental Quality Control, State Key Laboratory of Engines, Tianjin University, Tianjin 300350, China
| | - Qian Zhao
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Kaixuan Fu
- Department of Environmental Science and Technology, Tianjin Key Lab of Indoor Air Environmental Quality Control, State Key Laboratory of Engines, Tianjin University, Tianjin 300350, China
| | - Yanfei Zheng
- Department of Environmental Science and Technology, Tianjin Key Lab of Indoor Air Environmental Quality Control, State Key Laboratory of Engines, Tianjin University, Tianjin 300350, China
| | - Rui Han
- Department of Environmental Science and Technology, Tianjin Key Lab of Indoor Air Environmental Quality Control, State Key Laboratory of Engines, Tianjin University, Tianjin 300350, China
| | - Caixia Liu
- Department of Environmental Science and Technology, Tianjin Key Lab of Indoor Air Environmental Quality Control, State Key Laboratory of Engines, Tianjin University, Tianjin 300350, China
| | - Na Ji
- Department of Environmental Science and Technology, Tianjin Key Lab of Indoor Air Environmental Quality Control, State Key Laboratory of Engines, Tianjin University, Tianjin 300350, China
| | - Weichao Wang
- Department of Electronics, National Institute for Advanced Materials, Renewable Energy Conversion and Storage Center, Tianjin Key Laboratory of Photo-Electronic Thin Film Device and Technology, Nankai University, Tianjin 300071, China
| | - Qingling Liu
- Department of Environmental Science and Technology, Tianjin Key Lab of Indoor Air Environmental Quality Control, State Key Laboratory of Engines, Tianjin University, Tianjin 300350, China
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28
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Xie W, Xu G, Zhang Y, Yu Y, He H. Mesoporous LaCoO 3 perovskite oxide with high catalytic performance for NO x storage and reduction. JOURNAL OF HAZARDOUS MATERIALS 2022; 431:128528. [PMID: 35231814 DOI: 10.1016/j.jhazmat.2022.128528] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 02/17/2022] [Accepted: 02/18/2022] [Indexed: 06/14/2023]
Abstract
A mesoporous LaCoO3 perovskite oxide (LaCoO3-Meso) with three-dimensionally ordered helical interwoven structure was synthesized by a nano-casting method using KIT-6 as the hard template. The obtained LaCoO3-Meso with high surface area was tested for its catalytic performance in the NOx storage and reduction (NSR) reaction and compared with a sample synthesized by the conventional sol-gel method. The LaCoO3-Meso showed a significant advantage for NOx storage, with a NOx storage capacity 2 times higher than the regular sample. LaCoO3-Meso also exhibited improved NSR catalytic performance in the 150-450 °C temperature range, especially within 350-400 °C, where the NOx conversion was raised for 40%. The results of X-ray photoelectron spectroscopy and X-ray absorption fine structure measurements suggested the presence of a high concentration of oxygen defects on the LaCoO3-Meso surface. Further results provided by temperature programmed reduction and temperature programmed desorption indicated that the oxygen defects not only increase the amount of trapped NOx, but also improve the low-temperature redox performance of the catalyst. The lower stability of NOx species adsorbed on oxygen defects promotes the NOx release step in the NSR reaction and benefits the regeneration of storage sites.
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Affiliation(s)
- Wen Xie
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guangyan Xu
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yan Zhang
- University of Chinese Academy of Sciences, Beijing 100049, China; Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Yunbo Yu
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China; Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341000, China.
| | - Hong He
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China; Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341000, China.
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29
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Liu H, Chen J, Wang Y, Yin R, Yang W, Wang G, Si W, Peng Y, Li J. Interaction Mechanism for Simultaneous Elimination of Nitrogen Oxides and Toluene over the Bifunctional CeO 2-TiO 2 Mixed Oxide Catalyst. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:4467-4476. [PMID: 35254804 DOI: 10.1021/acs.est.1c08424] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Simultaneous catalytic elimination of nitrogen oxides (NOx, x = 1 and 2) and volatile organic compounds (VOCs) is of great importance for environmental preservation in China. In this work, the interactions of simultaneous removal of NOx and methylbenzene (PhCH3) were investigated on a CeO2-TiO2 mixed oxide catalyst, which demonstrated excellent bifunctional removal efficiencies for the two pollutants. The results indicated that NOx positively promotes PhCH3 oxidation, while NH3 negatively inhibits through competitive adsorption with PhCH3. The underlying mechanism is that a pseudo PhCH3-SCR reaction happened in this process is parallel to NH3-SCR. Combined with in situ diffuse reflectance infrared Fourier transform spectroscopy and quasi in situ X-ray photoelectron spectroscopy, the interaction mechanism between NOx and PhCH3 is proposed. Specifically, NOx is adsorbed on the catalyst surface to produce nitrate species, which reacts with the carboxylate generated during PhCH3 oxidation to form organic nitrogen intermediates that create N2 and CO2 in the following reactions. In the reaction process, the superoxide (O2-) generated by O2 activation on the catalyst surface is an important species for the propelling of oxidation reaction. This work could provide guidelines for the design of state-of-the-art catalysts for simultaneous catalytic removal of NOx and VOCs.
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Affiliation(s)
- Hao Liu
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, P. R. China
| | - Jianjun Chen
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, P. R. China
| | - Ya Wang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, P. R. China
| | - Rongqiang Yin
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, P. R. China
| | - Wenhao Yang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, P. R. China
| | - Guimin Wang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, P. R. China
| | - Wenzhe Si
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, P. R. China
| | - Yue Peng
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, P. R. China
| | - Junhua Li
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, P. R. China
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30
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Yin R, Chen J, Mi J, Liu H, Yan T, Shan L, Lang J, Li J. Breaking the Activity–Selectivity Trade-Off for Simultaneous Catalytic Elimination of Nitric Oxide and Chlorobenzene via FeVO 4–Fe 2O 3 Interfacial Charge Transfer. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00161] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Rongqiang Yin
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Jianjun Chen
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Jinxing Mi
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Haiyan Liu
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Tao Yan
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Liang Shan
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Junyu Lang
- School of Physical Science and Technology, Shanghai Tech University, Shanghai 201210, China
| | - Junhua Li
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
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