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Yadav S, Bhagat S, Singh S, Maurya PK. Exploring the anti-aging effect of dextran and polyethylene glycol-coated cerium oxide nanoparticles in erythrocytes. Int J Biol Macromol 2024; 282:136700. [PMID: 39427790 DOI: 10.1016/j.ijbiomac.2024.136700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 10/01/2024] [Accepted: 10/17/2024] [Indexed: 10/22/2024]
Abstract
Oxidative stress generated during aging largely affects erythrocytes. Antioxidative therapies such as polyphenols and flavonoids face limitations like low bioavailability and reduced efficiency. Cerium oxide nanoparticles (CeONPs) can behave as antioxidative enzymes and thus have better efficiency. Additionally, biopolymer coatings such as polyethylene glycol and polysaccharides such as dextran enhance the biocompatibility of these NPs. Therefore, we synthesized and characterized bare, polyethylene glycol, dextran-coated CeONPs and examined their hemocompatibility and protective effect against age-induced oxidative stress in erythrocytes. Erythrocytes were obtained from 5 ml of fresh blood drawn from 52 healthy individuals aged 20-85 years with their consent. CeONPs were found to be protective against age-induced oxidative damage in erythrocytes such as reduced levels of antioxidants and increased levels of oxidative species. Pretreatment with NPs protected the morphology and membrane integrity of erythrocytes. Among the NPs investigated, dextran-coated CeONPs emerged as the most effective, providing a reassuring sign of progress in anti-aging research. Therefore, Dex-CeONPs can be used as potential antioxidant therapeutics against age-induced oxidative stress.
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Affiliation(s)
- Somu Yadav
- Department of Biochemistry, Central University of Haryana, Mahendergarh 123031, India; Department of Vocational Studies & Skill Development, Central University of Haryana, Mahendragarh, Haryana 123031, India
| | - Stuti Bhagat
- DBT-National Institute of Animal Biotechnology (NIAB), Opposite Journalist Colony, Near Gowlidoddy, Extended Q-City Road, Gachibowli, Hyderabad 500032, Telangana, India; DBT-Regional Centre for Biotechnology (RCB), Faridabad 121001, Haryana, India
| | - Sanjay Singh
- DBT-National Institute of Animal Biotechnology (NIAB), Opposite Journalist Colony, Near Gowlidoddy, Extended Q-City Road, Gachibowli, Hyderabad 500032, Telangana, India; DBT-Regional Centre for Biotechnology (RCB), Faridabad 121001, Haryana, India.
| | - Pawan Kumar Maurya
- Department of Biochemistry, Central University of Haryana, Mahendergarh 123031, India.
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Othman A, Gowda A, Andreescu D, Hassan MH, Babu SV, Seo J, Andreescu S. Two decades of ceria nanoparticle research: structure, properties and emerging applications. MATERIALS HORIZONS 2024; 11:3213-3266. [PMID: 38717455 DOI: 10.1039/d4mh00055b] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
Cerium oxide nanoparticles (CeNPs) are versatile materials with unique and unusual properties that vary depending on their surface chemistry, size, shape, coating, oxidation states, crystallinity, dopant, and structural and surface defects. This review encompasses advances made over the past twenty years in the development of CeNPs and ceria-based nanostructures, the structural determinants affecting their activity, and translation of these distinct features into applications. The two oxidation states of nanosized CeNPs (Ce3+/Ce4+) coexisting at the nanoscale level facilitate the formation of oxygen vacancies and defect states, which confer extremely high reactivity and oxygen buffering capacity and the ability to act as catalysts for oxidation and reduction reactions. However, the method of synthesis, surface functionalization, surface coating and defects are important factors in determining their properties. This review highlights key properties of CeNPs, their synthesis, interactions, and reaction pathways and provides examples of emerging applications. Due to their unique properties, CeNPs have become quintessential candidates for catalysis, chemical mechanical planarization (CMP), sensing, biomedical applications, and environmental remediation, with tremendous potential to create novel products and translational innovations in a wide range of industries. This review highlights the timely relevance and the transformative potential of these materials in addressing societal challenges and driving technological advancements across these fields.
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Affiliation(s)
- Ali Othman
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699-5810, USA.
- Department of Chemical and Biomolecular Engineering, Clarkson University, Potsdam, New York 13699, USA.
| | - Akshay Gowda
- Department of Chemical and Biomolecular Engineering, Clarkson University, Potsdam, New York 13699, USA.
| | - Daniel Andreescu
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699-5810, USA.
| | - Mohamed H Hassan
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699-5810, USA.
| | - S V Babu
- Department of Chemical and Biomolecular Engineering, Clarkson University, Potsdam, New York 13699, USA.
| | - Jihoon Seo
- Department of Chemical and Biomolecular Engineering, Clarkson University, Potsdam, New York 13699, USA.
| | - Silvana Andreescu
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699-5810, USA.
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Kojčinović J, Tatar D, Šarić S, Bartus Pravda C, Mavrič A, Arčon I, Jagličić Z, Mellin M, Einert M, Altomare A, Caliandro R, Kukovecz Á, Hofmann JP, Djerdj I. Resolving a structural issue in cerium-nickel-based oxide: a single compound or a two-phase system? Dalton Trans 2024; 53:2082-2097. [PMID: 38180044 DOI: 10.1039/d3dt03280a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
CeNiO3 has been reported in the literature in the last few years as a novel LnNiO3 compound with promising applications in different catalytic fields, but its structure has not been correctly reported so far. In this research, CeNiO3 (RB1), CeO2 and NiO have been synthesized in a nanocrystalline form using a modified citrate aqueous sol-gel route. A direct comparison between the equimolar physical mixture (n(CeO2) : n(NiO) = 1 : 1) and compound RB1 was made. Their structural differences were investigated by laboratory powder X-ray diffraction (PXRD), selected area electron diffraction (SAED), transmission electron microscopy (TEM) with an energy-dispersive X-ray spectroscopy (EDS) detector, and Raman spectroscopy. The surface of the compounds was analyzed by X-ray photoelectron spectroscopy (XPS), while the thermal behaviour was explored by thermogravimetric analysis (TGA). Their magnetic properties were also investigated with the aim of exploring the differences between these two compounds. There were clear differences between the physical mixture of CeO2 + NiO and RB1 presented by all of these employed methods. Synchrotron methods, such as atomic pair distribution function analysis (PDF), X-ray absorption near edge structure (XANES) and extended X-ray absorption fine structure (EXAFS), were used to explore the structure of RB1 in more detail. Three different models for the structural solution of RB1 were proposed. One structural solution proposes that RB1 is a single-phase pyrochlore compound (Ce2Ni2O7) while the other two solutions suggest that RB1 is a two-phase system of either CeO2 + NiO or Ce1-xNixO2 and NiO.
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Affiliation(s)
- Jelena Kojčinović
- Department of Chemistry, Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 8/A, 31000 Osijek, Croatia.
| | - Dalibor Tatar
- Department of Chemistry, Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 8/A, 31000 Osijek, Croatia.
| | - Stjepan Šarić
- Department of Chemistry, Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 8/A, 31000 Osijek, Croatia.
| | - Cora Bartus Pravda
- Department of Applied and Environmental Chemistry, University of Szeged, 6720 Szeged, Hungary
| | - Andraž Mavrič
- University of Nova Gorica, Vipavska 13, 5000 Nova Gorica, Slovenia
| | - Iztok Arčon
- University of Nova Gorica, Vipavska 13, 5000 Nova Gorica, Slovenia
- Institute Jožef Stefan, Jamova 39, 1000 Ljubljana, Slovenia
| | - Zvonko Jagličić
- Institute of Mathematics, Physics, and Mechanics, University of Ljubljana, Jamova 2, 1000 Ljubljana, Slovenia
- Faculty of Civil & Geodetic Engineering, University of Ljubljana, Jadranska 19, 1000 Ljubljana, Slovenia
| | - Maximilian Mellin
- Surface Science Laboratory, Department of Materials and Earth Sciences, Technical University of Darmstadt, Otto-Berndt-Strasse 3, 64287 Darmstadt, Germany
| | - Marcus Einert
- Surface Science Laboratory, Department of Materials and Earth Sciences, Technical University of Darmstadt, Otto-Berndt-Strasse 3, 64287 Darmstadt, Germany
| | - Angela Altomare
- Institute of Crystallography, CNR, via Amendola 122/o, Bari 70126, Italy
| | - Rocco Caliandro
- Institute of Crystallography, CNR, via Amendola 122/o, Bari 70126, Italy
| | - Ákos Kukovecz
- Department of Applied and Environmental Chemistry, University of Szeged, 6720 Szeged, Hungary
| | - Jan Philipp Hofmann
- Surface Science Laboratory, Department of Materials and Earth Sciences, Technical University of Darmstadt, Otto-Berndt-Strasse 3, 64287 Darmstadt, Germany
| | - Igor Djerdj
- Department of Chemistry, Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 8/A, 31000 Osijek, Croatia.
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Mahalingam S, Kwon DS, Kang SG, Kim J. Multicomponent X-ray Shielding Using Sulfated Cerium Oxide and Bismuth Halide Composites. Molecules 2023; 28:6045. [PMID: 37630298 PMCID: PMC10457930 DOI: 10.3390/molecules28166045] [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: 07/19/2023] [Revised: 08/09/2023] [Accepted: 08/11/2023] [Indexed: 08/27/2023] Open
Abstract
Lead is the most widely used X-ray-shielding material, but it is heavy (density ≈ 11.34 g/cm3) and toxic. Therefore, the replacement of Pb with lightweight, ecofriendly materials would be beneficial, and such materials would have applications in medicine, electronics, and aerospace engineering. However, the shielding ability of Pb-free materials is significantly lower than that of Pb itself. To maximize the radiation attenuation of non-Pb-based shielding materials, a high-attenuation cross-section, normal to the incoming X-ray direction, must be achieved. In this study, we developed efficient X-ray-shielding materials composed of sulfated cerium oxide (S-CeO2) and bismuth halides. Crucially, the materials are lightweight and mechanically flexible because of the absence of heavy metals (for example, Pb and W). Further, by pre-forming the doped metal oxide as a porous sponge matrix, and then incorporating the bismuth halides into the porous matrix, uniform, compact, and intimate composites with a high-attenuation cross-section were achieved. Owing to the synergetic effect of the doped metal oxide and bismuth halides, the resultant thin (approximately 3 mm) and lightweight (0.85 g·cm-3) composite achieved an excellent X-ray-shielding rate of approximately 92% at 60 kV, one of the highest values reported for non-heavy-metal shielding materials.
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Affiliation(s)
- Shanmugam Mahalingam
- Department of Materials System Engineering, Pukyong National University, Busan 48513, Republic of Korea; (S.M.); (D.-S.K.); (S.-G.K.)
| | - Dae-Seong Kwon
- Department of Materials System Engineering, Pukyong National University, Busan 48513, Republic of Korea; (S.M.); (D.-S.K.); (S.-G.K.)
| | - Seok-Gyu Kang
- Department of Materials System Engineering, Pukyong National University, Busan 48513, Republic of Korea; (S.M.); (D.-S.K.); (S.-G.K.)
| | - Junghwan Kim
- Department of Materials System Engineering, Pukyong National University, Busan 48513, Republic of Korea; (S.M.); (D.-S.K.); (S.-G.K.)
- Institute of Energy Transport and Fusion Research, Pukyong National University, Busan 48513, Republic of Korea
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Chandrasekharan Meenu P, Roy S. Electro-oxidation Reaction of Methanol over Reducible Ce 1-x-yNi xSr yO 2-δ: A Mechanistic Probe of Participation of Lattice Oxygen. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37471142 DOI: 10.1021/acsami.3c05262] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
Methanol oxidation reaction crucially depends on the formation of -OOH species over the catalyst's surface. Ni-based catalysts are by far the choice of materials, where the redox couple of Ni2+/Ni3+ facilitates the formation of -OOH species by surface reconstructions. However, it is challenging to oxidize Ni2+ as it generates charge-transfer orbitals near the Fermi energy level. One possible solution is to substitute Ni2+ with a reducible oxide support, which will not only facilitate the Ni2+ → Ni3+ oxidation but also adsorb oxygenated species like -OOH at a lower potential owing to its oxophilicity. This work shows with the help of structural and surface studies that the reducible CeO2 support in Ni and Sr co-doped Ce1-x-yNixSryO2-δ solid solution can easily facilitate Ni2+ → Ni3+ oxidation as well as evolution of lattice oxygen during the methanol oxidation reaction. While the Ni3+ species helped in formation of -OOH surface intermediates, the evolved lattice oxygen eased the CO oxidation process in order to bring out the better CO-tolerant methanol oxidation activity over Ce1-x-yNixSryO2-δ. The study shows the unique importance of the electronic interactions between the active site and support and involvement of lattice oxygen in the methanol oxidation reaction.
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Affiliation(s)
- Preetha Chandrasekharan Meenu
- Department of Chemistry, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Hyderabad 500078, India
| | - Sounak Roy
- Department of Chemistry, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Hyderabad 500078, India
- Materials Center for Sustainable Energy & Environment, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Hyderabad 500078, India
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Hussien AGS, Polychronopoulou K. A Review on the Different Aspects and Challenges of the Dry Reforming of Methane (DRM) Reaction. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3400. [PMID: 36234525 PMCID: PMC9565677 DOI: 10.3390/nano12193400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/24/2022] [Accepted: 07/14/2022] [Indexed: 06/16/2023]
Abstract
The dry reforming of methane (DRM) reaction is among the most popular catalytic reactions for the production of syngas (H2/CO) with a H2:CO ratio favorable for the Fischer-Tropsch reaction; this makes the DRM reaction important from an industrial perspective, as unlimited possibilities for production of valuable products are presented by the FT process. At the same time, simultaneously tackling two major contributors to the greenhouse effect (CH4 and CO2) is an additional contribution of the DRM reaction. The main players in the DRM arena-Ni-supported catalysts-suffer from both coking and sintering, while the activation of the two reactants (CO2 and CH4) through different approaches merits further exploration, opening new pathways for innovation. In this review, different families of materials are explored and discussed, ranging from metal-supported catalysts, to layered materials, to organic frameworks. DRM catalyst design criteria-such as support basicity and surface area, bimetallic active sites and promoters, and metal-support interaction-are all discussed. To evaluate the reactivity of the surface and understand the energetics of the process, density-functional theory calculations are used as a unique tool.
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Affiliation(s)
- Aseel G. S. Hussien
- Department of Mechanical Engineering, Khalifa University of Science and Technology, Main Campus, Abu Dhabi P.O. Box 127788, United Arab Emirates
- Center for Catalysis and Separations (CeCaS), Khalifa University of Science and Technology, Abu Dhabi P.O. Box 127788, United Arab Emirates
| | - Kyriaki Polychronopoulou
- Department of Mechanical Engineering, Khalifa University of Science and Technology, Main Campus, Abu Dhabi P.O. Box 127788, United Arab Emirates
- Center for Catalysis and Separations (CeCaS), Khalifa University of Science and Technology, Abu Dhabi P.O. Box 127788, United Arab Emirates
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7
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Romano PN, de Carvalho Filho JFS, de Almeida JMAR, Sousa-Aguiar EF. Screening of mono and bimetallic catalysts for the dry reforming of methane. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.08.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Vences-Alvarez E, Chazaro-Ruiz LF, Rangel-Mendez JR. New bimetallic adsorbent material based on cerium-iron nanoparticles highly selective and affine for arsenic(V). CHEMOSPHERE 2022; 297:134177. [PMID: 35245593 DOI: 10.1016/j.chemosphere.2022.134177] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 01/14/2022] [Accepted: 02/28/2022] [Indexed: 06/14/2023]
Abstract
Bimetallic oxy(hydroxides) have gain great interest in water treatment systems based on adsorption processes. Their high OH groups density, in addition to inheriting the oxides properties make them highly promising adsorbents of anions. In this work, highly affine and selective bimetallic oxyhydroxides of cerium and iron (Ce:Fe-P's) for arsenic(V) were synthesized by implementing an assisted microwave methodology. The Ce:Fe-P's were characterized by various techniques (SEM, FTIR, XRD and XPS) and the As(V) adsorption capacity and kinetics as well as the effect of pH and the presence of coexisting anions were determined. The results showed that Ce:Fe-P's have an outstanding As(V) adsorption capacity (179.8 mg g-1 at Ce = 3 mg L-1) even at low concentrations (120 mg g-1 at Ce = 37 μg L-1). Moreover, the adsorption equilibrium was reached very fast, just in 3 min, with an adsorption rate of 0.123 mg min-1, that is, 80% of the initial As(V) concentration of 5 mg L-1 was removed in the first 3 min. The arsenic adsorption capacity decreased only up to 20% at pH above 7, attributed to electrostatic repulsions due to the adsorbent's pHPZC, which was 6.8. On the other hand, the arsenic adsorption capacity of Ce:Fe-P's decreased just 21% in the presence of 10 mg L-1 of each of the following competing anions: F-, Cl-, SO42-, NO3-, PO43- and CO32-, which usually coincide in contaminated water with As(V). Ce:Fe-P's has proven to be one of the most promising As(V) adsorbent materials reported so far in the literature, because it presented an outstanding adsorption capacity and at the same time a very fast adsorption speed. Furthermore, the pH and the concentration of coexisting anions caused little interference in the adsorption processes. Due to the above, the Ce:Fe-P's is already in the process of intellectual protection.
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Affiliation(s)
- Esmeralda Vences-Alvarez
- Environmental Sciences Division, Instituto Potosino de Investigación Científica y Tecnológica A. C., San Luis Potosí, S.L.P., 78216, Mexico
| | - Luis F Chazaro-Ruiz
- Environmental Sciences Division, Instituto Potosino de Investigación Científica y Tecnológica A. C., San Luis Potosí, S.L.P., 78216, Mexico
| | - J Rene Rangel-Mendez
- Environmental Sciences Division, Instituto Potosino de Investigación Científica y Tecnológica A. C., San Luis Potosí, S.L.P., 78216, Mexico.
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Grzelak K, Trejda M, Riisager A. Copper Supported on Ceria Mesocellular Foam Silica as an Effective Catalyst for Reductive Condensation of Acetone to Methyl Isobutyl Ketone. CHEMSUSCHEM 2022; 15:e202102012. [PMID: 35188330 DOI: 10.1002/cssc.202102012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 02/18/2022] [Indexed: 06/14/2023]
Abstract
Copper-containing materials based on Ce- and Ca-Nb-mesocellular foam (MCF) silica supports are prepared, characterized and applied as catalysts for gas-phase reductive condensation of acetone to produce methyl isobutyl ketone (MIBK). The properties of the materials, the interaction of metal species, and their role in the catalytic process are examined by nitrogen physisorption, XRD, XPS, CO2 -TPD, H2 -TPR, and chemisorption of NO and pyridine combined with FTIR spectroscopy. A synergistic interaction of Cu2+ , Cu0 , and CeO2 species incorporated in the MCF support enable the Cu/Ce-MCF catalyst to yield 34 % of acetone conversion with over 90 % MIBK selectivity at 250 °C. Moreover, this high catalyst selectivity is maintained during operation for 24 h despite a decline in catalyst activity. The catalytic performance is superior to that of hydroxyapatite-supported Cu and similar previously reported Pd-containing catalysts.
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Affiliation(s)
- Kalina Grzelak
- Department of Heterogeneous Catalysis, Faculty of Chemistry, Adam Mickiewicz University, Poznań, ul. Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland
| | - Maciej Trejda
- Department of Heterogeneous Catalysis, Faculty of Chemistry, Adam Mickiewicz University, Poznań, ul. Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland
| | - Anders Riisager
- Centre for Catalysis and Sustainable Chemistry, Department of Chemistry, Technical University of Denmark Kemitorvet, Building 207, 2800, Kgs. Lyngby, Denmark
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Ceria-supported niobium oxide catalyst for low-temperature oxidation of 1,3-butadiene. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2021.112083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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11
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Lord MS, Berret JF, Singh S, Vinu A, Karakoti AS. Redox Active Cerium Oxide Nanoparticles: Current Status and Burning Issues. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2102342. [PMID: 34363314 DOI: 10.1002/smll.202102342] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 06/09/2021] [Indexed: 06/13/2023]
Abstract
Research on cerium oxide nanoparticles (nanoceria) has captivated the scientific community due to their unique physical and chemical properties, such as redox activity and oxygen buffering capacity, which made them available for many technical applications, including biomedical applications. The redox mimetic antioxidant properties of nanoceria have been effective in the treatment of many diseases caused by reactive oxygen species (ROS) and reactive nitrogen species. The mechanism of ROS scavenging activity of nanoceria is still elusive, and its redox activity is controversial due to mixed reports in the literature showing pro-oxidant and antioxidant activity. In light of its current research interest, it is critical to understand the behavior of nanoceria in the biological environment and provide answers to some of the critical and open issues. This review critically analyzes the status of research on the application of nanoceria to treat diseases caused by ROS. It reviews the proposed mechanism of action and shows the effect of surface coatings on its redox activity. It also discusses some of the crucial issues in deciphering the mechanism and redox activity of nanoceria and suggests areas of future research.
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Affiliation(s)
- Megan S Lord
- Graduate School of Biomedical Engineering, UNSW Sydney, Sydney, New South Wales, 2052, Australia
| | | | - Sanjay Singh
- National Institute of Animal Biotechnology, Hyderabad, Telangana, 500032, India
| | - Ajayan Vinu
- Global Innovative Center for Advanced Nanomaterials, College of Engineering Science and Environment, The University of Newcastle, Callaghan, New South Wales, 2308, Australia
| | - Ajay S Karakoti
- Global Innovative Center for Advanced Nanomaterials, College of Engineering Science and Environment, The University of Newcastle, Callaghan, New South Wales, 2308, Australia
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Adsorption of Carbon Dioxide on Mono-Layer Thick Oxidized Samarium Films on Ni(100). NANOMATERIALS 2021; 11:nano11082064. [PMID: 34443895 PMCID: PMC8401028 DOI: 10.3390/nano11082064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/26/2021] [Accepted: 08/12/2021] [Indexed: 11/16/2022]
Abstract
Studies of adsorption of CO2 on nanoscopic surfaces are relevant for technological applications in heterogeneous catalysis as well as for sorption of this important greenhouse gas. Presently, adsorption of carbon dioxide on pure and oxidized thin samarium layers near mono-layer thickness on Ni(100) has been investigated by photoelectron spectroscopy and temperature programmed desorption. It is observed that very little CO2 adsorb on the metallic sample for exposures in the vacuum regime at room temperature. For the oxidized sample, a large enhancement in CO2 adsorption is observed in the desorption measurements. Indications of carbonate formation on the surface were found by C 1s and O 1s XPS. After annealing of the oxidized samples to 900 K very little CO2 was found to adsorb. Differences in desorption spectra before and after annealing of the oxidized samples are correlated with changes in XPS intensities, and with changes in sample work function which determines the energy difference between molecular orbitals and substrate Fermi level, and thus the probability of charge transfer between adsorbed molecule and substrate.
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Chemical Degradation of the La0.6Sr0.4Co0.2Fe0.8O3−δ/Ce0.8Sm0.2O2−δ Interface during Sintering and Cell Operation. ENERGIES 2021. [DOI: 10.3390/en14123674] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A complete cell consisting of NiO-Ce0.8Sm0.2O3−δ//Ce0.8Sm0.2O3−δ//(La0.6Sr0.4)0.95Co0.2Fe0.8O3−δ elaborated by a co-tape casting and co-sintering process and tested in operating fuel cell conditions exhibited a strong degradation in performance over time. Study of the cathode–electrolyte interface after cell testing showed, on one hand, the diffusion of lanthanum from (La0.6Sr0.4)0.95Co0.2Fe0.8O3−δ into Sm-doped ceria leading to a La- and Sm-doped ceria phase. On the other hand, Ce and Sm diffused into the perovskite phase of the cathode. The grain boundaries appear to be the preferred pathways of the cation diffusion. Furthermore, a strontium enrichment was clearly observed both in the (La0.6Sr0.4)0.95Co0.2Fe0.8O3−δ layer and at the interface with electrolyte. X-ray photoelectron spectroscopy (XPS) indicates that this Sr-rich phase corresponded to SrCO3. These different phenomena led to a chemical degradation of materials and interfaces, explaining the decrease in electrochemical performance.
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14
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Dehydrogenation of ethane and subsequent activation of CO2 on hierarchically-structured bimetallic FeM@ZSM-5 (M=Ce, Ga, and Sn). KOREAN J CHEM ENG 2021. [DOI: 10.1007/s11814-020-0709-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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15
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Kim HJ, Shin D, Jeong H, Jang MG, Lee H, Han JW. Design of an Ultrastable and Highly Active Ceria Catalyst for CO Oxidation by Rare-Earth- and Transition-Metal Co-Doping. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03386] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Hyung Jun Kim
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Dongjae Shin
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Hojin Jeong
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Myeong Gon Jang
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Hyunjoo Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Jeong Woo Han
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
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16
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Njoku CB, Doyle BP, Carleschi E, Kriek RJ. Ce
0.8
Sr
0.2
Co
x
Fe
1‐x
O
3‐δ
(x=0.2, 0.5, 0.8) – A Perovskite‐type Nanocomposite for Application in the Oxygen Evolution Reaction in Alkaline Media. ELECTROANAL 2020. [DOI: 10.1002/elan.202060370] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- C. B. Njoku
- Electrochemistry for Energy & Environment Group Research Focus Area: Chemical Resource Beneficiation (CRB) North-West University 11 Hoffman Street Potchefstroom 2531 South Africa
| | - B. P. Doyle
- Department of Physics University of Johannesburg P O Box 524 Auckland Park 2006 South Africa
| | - E. Carleschi
- Department of Physics University of Johannesburg P O Box 524 Auckland Park 2006 South Africa
| | - R. J. Kriek
- Electrochemistry for Energy & Environment Group Research Focus Area: Chemical Resource Beneficiation (CRB) North-West University 11 Hoffman Street Potchefstroom 2531 South Africa
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17
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Pinheiro D, Sunaja Devi K, Jose A, Karthik K, Sugunan S, Krishna Mohan M. Experimental design for optimization of 4-nitrophenol reduction by green synthesized CeO2/g-C3N4/Ag catalyst using response surface methodology. J RARE EARTH 2020. [DOI: 10.1016/j.jre.2019.10.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Song K, Wang S, Sun Q, Xu D. Study of oxidative dehydrogenation of ethylbenzene with CO2 on supported CeO2-Fe2O3 binary oxides. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.08.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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19
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Njoku CB, Kriek RJ. Sol-gel Synthesis of Ce0.8Sr0.2Co1-(x+y)NixFeyO3-δ (x = 0.1, 0.2, and y = 0.2, 0.5, 0.7)—a Nanocomposite-Type Electrocatalyst for the Oxygen Evolution Reaction in Alkaline Media. Electrocatalysis (N Y) 2020. [DOI: 10.1007/s12678-020-00624-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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20
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Zhu L, Pan S, Liu Z, Wei P, Liu Z, Yu P, Xu Y. Effect of Rare Earth Metal (RE = La, Pr, Nd, Y) Doping on Co–Ce Composite Oxide and Its Application in Catalytic Combustion of Chlorobenzene. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b07086] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Lei Zhu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 210009, China
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 210009, China
- National Supervision and Testing Center of Fine Chemicals, Taizhou 225300, China
| | - Shunlong Pan
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Zhiying Liu
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Ping Wei
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Zhuyun Liu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Peng Yu
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Yanhua Xu
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 210009, China
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21
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Gupta N, Punekar AS, E. K. Raj KR, Ghodekar MM, Patil VS, Gopinath CS, Raja T. Phase Transfer Ceria-Supported Nanocatalyst for Nitrile Hydration Reaction. ACS OMEGA 2019; 4:16037-16044. [PMID: 31592472 PMCID: PMC6777097 DOI: 10.1021/acsomega.9b02173] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 08/20/2019] [Indexed: 06/10/2023]
Abstract
The present study elaborates the catalytic effect of rare-earth metal oxides (Sm2O3 and La2O3) over ceria as a support phase transfer catalyst. The synthesized catalysts have been subjected to different characterization techniques, such as field-emission scanning electron microscopy, high-resolution transmission electron microscopy, powder X-ray diffraction, N2 adsorption-desorption (BET surface analysis), temperature-programmed desorption study (NH3/CO2-TPD), Fourier transform infrared, Raman analysis, and X-ray photoelectron spectroscopy to get better insights into the catalytic activity of the catalysts for hydration of nitrile.
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Affiliation(s)
- Nikitra
N. Gupta
- Catalysis
& Inorganic Chemistry Division and Centre for Material Characterization, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Amrin S. Punekar
- Catalysis
& Inorganic Chemistry Division and Centre for Material Characterization, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Karthik Raja E. K. Raj
- Catalysis
& Inorganic Chemistry Division and Centre for Material Characterization, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Medha M. Ghodekar
- Catalysis
& Inorganic Chemistry Division and Centre for Material Characterization, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Vipul S. Patil
- Catalysis
& Inorganic Chemistry Division and Centre for Material Characterization, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Chinnakonda S. Gopinath
- Catalysis
& Inorganic Chemistry Division and Centre for Material Characterization, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Thirumalaiswamy Raja
- Catalysis
& Inorganic Chemistry Division and Centre for Material Characterization, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
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22
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Elucidating detailed experimental and fundamental understandings concerning the green organic-inorganic corrosion inhibiting molecules onto steel in chloride solution. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111212] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Małecka MA. The Phosphates - Skipped Reaction Products in the Octahedron-like Yb and Lu-Doped Ceria Synthesis. ChemistrySelect 2019. [DOI: 10.1002/slct.201803321] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- M. A. Małecka
- Institute of Low Temperature and Structure Research PAS, P.O. Box 1410; 50-950 Wrocław 2
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24
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S. S, Jacob LA, Mani KP, P. R. B, Unnikrishnan NV, Joseph C. High color rendering index single phase white light emitting phosphors based on Tb 3+/Sm 3+ co-doped CePO 4 nanocrystals: the role of Tb 3+ as a bridge between Ce 3+ and Sm 3+. NEW J CHEM 2019. [DOI: 10.1039/c9nj00702d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Single phase white light emitting CePO4 nanocrystals doped with Tb3+ and Sm3+ were synthesized. The quality of white light is characterized by CIE chromaticity coordinates, color temperature, color rendering index and quantum yield.
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Affiliation(s)
- Sisira S.
- School of Pure and Applied Physics
- Mahatma Gandhi University
- Kottayam-686560
- India
| | - Linju Ann Jacob
- School of Pure and Applied Physics
- Mahatma Gandhi University
- Kottayam-686560
- India
| | - Kamal P. Mani
- School of Pure and Applied Physics
- Mahatma Gandhi University
- Kottayam-686560
- India
| | - Biju P. R.
- School of Pure and Applied Physics
- Mahatma Gandhi University
- Kottayam-686560
- India
| | - N. V. Unnikrishnan
- School of Pure and Applied Physics
- Mahatma Gandhi University
- Kottayam-686560
- India
| | - Cyriac Joseph
- School of Pure and Applied Physics
- Mahatma Gandhi University
- Kottayam-686560
- India
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25
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Liu H, Sun C, Fan Z, Jia X, Sun J, Gao F, Tang C, Dong L. Doping effect of Sm on the TiO2/CeSmOx catalyst in the NH3-SCR reaction: structure–activity relationship, reaction mechanism and SO2 tolerance. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00731h] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A good balance between the redox properties and surface acidity induces the high activity of the Sm doped TiO2/CeO2 catalyst.
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Affiliation(s)
- Hao Liu
- School of the Environment
- Jiangsu Key Laboratory of Vehicle Emissions Control
- Center of Modern Analysis
- Nanjing University
- Nanjing 210093
| | - Chuanzhi Sun
- School of the Environment
- Jiangsu Key Laboratory of Vehicle Emissions Control
- Center of Modern Analysis
- Nanjing University
- Nanjing 210093
| | - Zhongxuan Fan
- School of the Environment
- Jiangsu Key Laboratory of Vehicle Emissions Control
- Center of Modern Analysis
- Nanjing University
- Nanjing 210093
| | - XuanXuan Jia
- College of Chemistry
- Chemical Engineering and Materials Science
- Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals
- Institute of Materials and Clean Energy
- Shandong Normal University
| | - Jingfang Sun
- School of the Environment
- Jiangsu Key Laboratory of Vehicle Emissions Control
- Center of Modern Analysis
- Nanjing University
- Nanjing 210093
| | - Fei Gao
- School of the Environment
- Jiangsu Key Laboratory of Vehicle Emissions Control
- Center of Modern Analysis
- Nanjing University
- Nanjing 210093
| | - Changjin Tang
- School of the Environment
- Jiangsu Key Laboratory of Vehicle Emissions Control
- Center of Modern Analysis
- Nanjing University
- Nanjing 210093
| | - Lin Dong
- School of the Environment
- Jiangsu Key Laboratory of Vehicle Emissions Control
- Center of Modern Analysis
- Nanjing University
- Nanjing 210093
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26
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Anantharaman AP, Gadiyar HJ, Surendran M, Rao AS, Dasari HP, Dasari H, Babu GUB. Effect of synthesis method on structural properties and soot oxidation activity of gadolinium-doped ceria. CHEMICAL PAPERS 2018. [DOI: 10.1007/s11696-018-0532-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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27
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Njoku CB, Kriek RJ. Application of Sm0.8Sr0.2Fe1-xCoxO3-δ (x = 0.2, 0.5, 0.8) Perovskite for the Oxygen Evolution Reaction in Alkaline Media. Electrocatalysis (N Y) 2018. [DOI: 10.1007/s12678-018-0498-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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28
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29
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Lin J, Guo Y, Li C, Lu S, Chen X, Liew KM. A Comparative Study of Supported and Bulk Cu–Mn–Ce Composite Oxide Catalysts for Low-Temperature CO Oxidation. Catal Letters 2018. [DOI: 10.1007/s10562-018-2445-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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30
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Wang Y, Hu S, Xu Q, Ju H, Zhu J. Sm on CeO2(111): A Case for Ceria Modification via Strong Metal–Ceria Interaction. Top Catal 2018. [DOI: 10.1007/s11244-018-0977-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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31
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Anantharaman AP, J G, P MR, Dasari HP, Lee JH, Dasari H, Bhaskar Babu GU. Ceria-samarium binary metal oxides: A comparative approach towards structural properties and soot oxidation activity. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2018.01.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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32
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Du H, Wang Y, Arandiyan H, Scott J, Wan T, Chu D. Correlating morphology and doping effects with the carbon monoxide catalytic activity of Zn doped CeO2 nanocrystals. Catal Sci Technol 2018. [DOI: 10.1039/c7cy01999h] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The morphology-dependent doping effects on CeO2 nanocrystals were investigated for the catalytic oxidation of carbon monoxide (CO).
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Affiliation(s)
- Haiwei Du
- School of Materials Science and Engineering
- University of New South Wales
- Sydney
- Australia
| | - Yuan Wang
- Particles and Catalysis Research Group
- School of Chemical Engineering
- University of New South Wales
- Sydney
- Australia
| | - Hamidreza Arandiyan
- Particles and Catalysis Research Group
- School of Chemical Engineering
- University of New South Wales
- Sydney
- Australia
| | - Jason Scott
- Particles and Catalysis Research Group
- School of Chemical Engineering
- University of New South Wales
- Sydney
- Australia
| | - Tao Wan
- School of Materials Science and Engineering
- University of New South Wales
- Sydney
- Australia
| | - Dewei Chu
- School of Materials Science and Engineering
- University of New South Wales
- Sydney
- Australia
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33
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Venkataswamy P, Jampaiah D, Kandjani AE, Sabri YM, Reddy BM, Vithal M. Transition (Mn, Fe) and rare earth (La, Pr) metal doped ceria solid solutions for high performance photocatalysis: Effect of metal doping on catalytic activity. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-3244-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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34
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Govinda Rao B, Sudarsanam P, Nallappareddy P, Yugandhar Reddy M, Venkateshwar Rao T, Reddy BM. Selective allylic oxidation of cyclohexene catalyzed by nanostructured Ce-Sm-Si materials. CATAL COMMUN 2017. [DOI: 10.1016/j.catcom.2017.07.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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35
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Patil P, Dhanasingh S, Kumar NS. Gold-doped ceria–lanthana solid solution: surfactant assisted preparation, nanostructural and catalytic properties. CHEMICAL PAPERS 2017. [DOI: 10.1007/s11696-017-0324-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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36
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Venkataswamy P, Devaiah D, Kuntaiah K, Vithal M, Reddy BM. Nanostructured Titania-Supported Ceria–Samaria Solid Solutions: Structural Characterization and CO Oxidation Activity. Catal Letters 2017. [DOI: 10.1007/s10562-017-2129-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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37
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Othman A, Andreescu D, Karunaratne DP, Babu SV, Andreescu S. Functional Paper-Based Platform for Rapid Capture and Detection of CeO 2 Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2017; 9:12893-12905. [PMID: 28340293 DOI: 10.1021/acsami.7b02823] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Development of systems for capture, sequestration, and tracking of nanoparticles (NPs) is becoming a significant focus in many aspects of nanotechnology and environmental research. These systems enable a broad range of applications for evaluating concentration, distribution, and effects of NPs for environmental, clinical, epidemiological, and occupational exposure studies. Herein, we describe the first example of a ligand-graft multifunctional platform for capture and detection of cerium oxide (CeO2 or ceria) NPs. The approach involves the use of redox-active ligands containing o-dihydroxy functionality, enabling multivalent binding, surface retention, and formation of charge transfer complexes between the grafted ligand and the NPs. Using this strategy, paper-based and microarray-printed platforms with NP-capture ability involving either catechol or ascorbic acid as ligands were successfully fabricated. Surface modification was determined by infrared spectroscopy, electron microscopy, X-ray spectroscopy, and thermogravimetric analysis. Functionality was demonstrated for the rapid assessment of NPs in chemical mechanical planarization (CMP) slurries and CMP wastewaters. This novel approach can enable further development of devices and separation technologies including platforms for retention and separation of NPs and measurement tools for detection of NPs in various environments.
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Affiliation(s)
- Ali Othman
- Department of Chemistry and Biomolecular Science, ‡Department of Chemical and Biomolecular Engineering, and §Center for Advanced Materials Processing, Clarkson University , Potsdam, New York 13699, United States
| | - Daniel Andreescu
- Department of Chemistry and Biomolecular Science, ‡Department of Chemical and Biomolecular Engineering, and §Center for Advanced Materials Processing, Clarkson University , Potsdam, New York 13699, United States
| | - Dinusha P Karunaratne
- Department of Chemistry and Biomolecular Science, ‡Department of Chemical and Biomolecular Engineering, and §Center for Advanced Materials Processing, Clarkson University , Potsdam, New York 13699, United States
| | - S V Babu
- Department of Chemistry and Biomolecular Science, ‡Department of Chemical and Biomolecular Engineering, and §Center for Advanced Materials Processing, Clarkson University , Potsdam, New York 13699, United States
| | - Silvana Andreescu
- Department of Chemistry and Biomolecular Science, ‡Department of Chemical and Biomolecular Engineering, and §Center for Advanced Materials Processing, Clarkson University , Potsdam, New York 13699, United States
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38
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Rapid microwave assisted sol-gel synthesis of CeO2 and CexSm1-xO2 nanoparticle catalysts for CO oxidation. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.molcata.2016.11.039] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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39
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He D, Hao H, Chen D, Liu J, Yu J, Lu J, Liu F, Wan G, He S, Luo Y. Synthesis and application of rare-earth elements (Gd, Sm, and Nd) doped ceria-based solid solutions for methyl mercaptan catalytic decomposition. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.06.022] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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40
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Zhang L, Zhang L, Xu G, Zhang C, Li X, Sun Z, Jia D. Low-temperature CO oxidation over CeO2 and CeO2@Co3O4 core–shell microspheres. NEW J CHEM 2017. [DOI: 10.1039/c7nj02542d] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The excellent CO catalytic activity and stability of CeO2@Co3O4 composite were ascribed to the synergistic interactions between Co3O4 and CeO2.
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Affiliation(s)
- Lu Zhang
- Key Laboratory of Energy Materials Chemistry (Xinjiang University)
- Ministry of Education
- Urumqi
- P. R. China
- Key Laboratory of Advanced Functional Materials
| | - Li Zhang
- Key Laboratory of Energy Materials Chemistry (Xinjiang University)
- Ministry of Education
- Urumqi
- P. R. China
- Key Laboratory of Advanced Functional Materials
| | - Guancheng Xu
- Key Laboratory of Energy Materials Chemistry (Xinjiang University)
- Ministry of Education
- Urumqi
- P. R. China
- Key Laboratory of Advanced Functional Materials
| | - Chi Zhang
- Key Laboratory of Energy Materials Chemistry (Xinjiang University)
- Ministry of Education
- Urumqi
- P. R. China
- Key Laboratory of Advanced Functional Materials
| | - Xin Li
- Key Laboratory of Energy Materials Chemistry (Xinjiang University)
- Ministry of Education
- Urumqi
- P. R. China
- Key Laboratory of Advanced Functional Materials
| | - Zhipeng Sun
- Key Laboratory of Energy Materials Chemistry (Xinjiang University)
- Ministry of Education
- Urumqi
- P. R. China
- Key Laboratory of Advanced Functional Materials
| | - Dianzeng Jia
- Key Laboratory of Energy Materials Chemistry (Xinjiang University)
- Ministry of Education
- Urumqi
- P. R. China
- Key Laboratory of Advanced Functional Materials
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41
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Promising nanostructured gold/metal oxide catalysts for oxidative coupling of benzylamines under eco-friendly conditions. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcata.2015.11.019] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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42
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Wang L, Wu Y, Feng N, Meng J, Wan H, Guan G. Accelerated synthesis of MnO2 nanocomposites by acid-free hydrothermal route for catalytic soot combustion. RSC Adv 2016. [DOI: 10.1039/c6ra02045c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
MnO2 nanocomposites with porous structure were successfully synthesized by a facile hydrothermal route from KMnO4 without the addition of any acid.
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Affiliation(s)
- Lei Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Chemical Engineering
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing Tech University
- Nanjing 210009
| | - Yang Wu
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Chemical Engineering
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing Tech University
- Nanjing 210009
| | - Nengjie Feng
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Chemical Engineering
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing Tech University
- Nanjing 210009
| | - Jie Meng
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Chemical Engineering
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing Tech University
- Nanjing 210009
| | - Hui Wan
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Chemical Engineering
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing Tech University
- Nanjing 210009
| | - Guofeng Guan
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Chemical Engineering
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing Tech University
- Nanjing 210009
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43
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Wang YJ, Dong H, Lyu GM, Zhang HY, Ke J, Kang LQ, Teng JL, Sun LD, Si R, Zhang J, Liu YJ, Zhang YW, Huang YH, Yan CH. Engineering the defect state and reducibility of ceria based nanoparticles for improved anti-oxidation performance. NANOSCALE 2015; 7:13981-90. [PMID: 26228305 DOI: 10.1039/c5nr02588e] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Due to their excellent anti-oxidation performance, CeO2 nanoparticles receive wide attention in pharmacological application. Deep understanding of the anti-oxidation mechanism of CeO2 nanoparticles is extremely important to develop potent CeO2 nanomaterials for anti-oxidation application. Here, we report a detailed study on the anti-oxidation process of CeO2 nanoparticles. The valence state and coordination structure of Ce are characterized before and after the addition of H2O2 to understand the anti-oxidation mechanism of CeO2 nanoparticles. Adsorbed peroxide species are detected during the anti-oxidation process, which are responsible for the red-shifted UV-vis absorption spectra of CeO2 nanoparticles. Furthermore, the coordination number of Ce in the first coordination shell slightly increased after the addition of H2O2. On the basis of these experimental results, the reactivity of coordination sites for peroxide species is considered to play a key role in the anti-oxidation performance of CeO2 nanoparticles. Furthermore, we present a robust method to engineer the anti-oxidation performance of CeO2 nanoparticles through the modification of the defect state and reducibility by doping with Gd(3+). Improved anti-oxidation performance is also observed in cell culture, where the biocompatible CeO2-based nanoparticles can protect INS-1 cells from oxidative stress induced by H2O2, suggesting the potential application of CeO2 nanoparticles in the treatment of diabetes.
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Affiliation(s)
- Yan-Jie Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
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Dunnick KM, Pillai R, Pisane KL, Stefaniak AB, Sabolsky EM, Leonard SS. The Effect of Cerium Oxide Nanoparticle Valence State on Reactive Oxygen Species and Toxicity. Biol Trace Elem Res 2015; 166:96-107. [PMID: 25778836 PMCID: PMC4469090 DOI: 10.1007/s12011-015-0297-4] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Accepted: 03/03/2015] [Indexed: 11/01/2022]
Abstract
Cerium oxide (CeO2) nanoparticles, which are used in a variety of products including solar cells, gas sensors, and catalysts, are expected to increase in industrial use. This will subsequently lead to additional occupational exposures, making toxicology screenings crucial. Previous toxicology studies have presented conflicting results as to the extent of CeO2 toxicity, which is hypothesized to be due to the ability of Ce to exist in both a +3 and +4 valence state. Thus, to study whether valence state and oxygen vacancy concentration are important in CeO2 toxicity, CeO2 nanoparticles were doped with gadolinium to adjust the cation (Ce, Gd) and anion (O) defect states. The hypothesis that doping would increase toxicity and decrease antioxidant abilities as a result of increased oxygen vacancies and inhibition of +3 to +4 transition was tested. Differences in toxicity and reactivity based on valence state were determined in RLE-6TN rat alveolar epithelial and NR8383 rat alveolar macrophage cells using enhanced dark field microscopy, electron paramagnetic resonance (EPR), and annexin V/propidium iodide cell viability stain. Results from EPR indicated that as doping increased, antioxidant potential decreased. Alternatively, doping had no effect on toxicity at 24 h. The present results imply that as doping increases, thus subsequently increasing the Ce(3+)/Ce(4+) ratio, antioxidant potential decreases, suggesting that differences in reactivity of CeO2 are due to the ability of Ce to transition between the two valence states and the presence of increased oxygen vacancies, rather than dependent on a specific valence state.
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Affiliation(s)
- Katherine M Dunnick
- National Institute for Occupational Safety and Health, HELD, 1095 Willowdale Rd, Morgantown, WV, 26505, USA,
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Anirban S, Paul T, Dutta A. Vacancy mediated ionic conduction in Dy substituted nanoceria: a structure–property correlation study. RSC Adv 2015. [DOI: 10.1039/c5ra06730h] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Origin of vacancies in ceria due to doping.
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Affiliation(s)
- Sk. Anirban
- Department of Physics
- The University of Burdwan
- Burdwan-713104
- India
- Department of Physics
| | - Tanmoy Paul
- Department of Physics
- The University of Burdwan
- Burdwan-713104
- India
| | - Abhigyan Dutta
- Department of Physics
- The University of Burdwan
- Burdwan-713104
- India
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46
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Sagar TV, Sreelatha N, Hanmant G, Surendar M, Lingaiah N, Rama Rao KS, Satyanarayana CVV, Reddy IAK, Sai Prasad PS. Influence of method of preparation on the activity of La–Ni–Ce mixed oxide catalysts for dry reforming of methane. RSC Adv 2014. [DOI: 10.1039/c4ra07098d] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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47
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Synthesis and Structural Characterization of Eu2O3 Doped CeO2: Influence of Oxygen Defects on CO Oxidation. Catal Letters 2014. [DOI: 10.1007/s10562-014-1367-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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48
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Sudarsanam P, Mallesham B, Durgasri DN, Reddy BM. Physicochemical and catalytic properties of nanosized Au/CeO2 catalysts for eco-friendly oxidation of benzyl alcohol. J IND ENG CHEM 2014. [DOI: 10.1016/j.jiec.2013.11.053] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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49
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Nanosized CeO2–Gd2O3 Mixed Oxides: Study of Structural Characterization and Catalytic CO Oxidation Activity. Catal Letters 2014. [DOI: 10.1007/s10562-014-1223-7] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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50
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Cheng G, Huang X, Zhang H, Hu Y, Kan C. Preparation of P(St-co-MAA)/CeO2 composite microspheres via surface carboxyl oxidation followed by in situ chemical deposition of CeO2 and their catalytic application on oxidative degradation of methyl orange. RSC Adv 2014. [DOI: 10.1039/c4ra01360c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
P(St-co-MAA)/CeO2 composites microspheres were fabricated by a novel and facile approach, exhibiting excellent catalytic performance in oxidative degradation.
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Affiliation(s)
- Guanzhi Cheng
- Department of Chemical Engineering and Key Laboratory of Advanced Materials of Ministry of Education of China
- Tsinghua University
- Beijing 100084, China
| | - Xinyi Huang
- Department of Chemical Engineering and Key Laboratory of Advanced Materials of Ministry of Education of China
- Tsinghua University
- Beijing 100084, China
| | - Hong Zhang
- Department of Chemical Engineering and Key Laboratory of Advanced Materials of Ministry of Education of China
- Tsinghua University
- Beijing 100084, China
| | - Yang Hu
- Department of Chemical Engineering and Key Laboratory of Advanced Materials of Ministry of Education of China
- Tsinghua University
- Beijing 100084, China
| | - Chengyou Kan
- Department of Chemical Engineering and Key Laboratory of Advanced Materials of Ministry of Education of China
- Tsinghua University
- Beijing 100084, China
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