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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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Harikrishnan MP, Bose AC. Porous CeNiO 3 with an enhanced electrochemical performance and prolonged cycle life (>50 000 cycles) via a lemon-assisted sol–gel autocombustion method. NEW J CHEM 2022. [DOI: 10.1039/d2nj02295h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A symmetric device with long life span and high Coulombic efficiency has been fabricated using porous structured CeNiO3.
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Affiliation(s)
- M. P. Harikrishnan
- Nanomaterials Laboratory, Department of Physics, National Institute of Technology, Tiruchirappalli – 620015, Tamil Nadu, India
| | - A. Chandra Bose
- Nanomaterials Laboratory, Department of Physics, National Institute of Technology, Tiruchirappalli – 620015, Tamil Nadu, India
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Maridevaru MC, Aljafari B, Anandan S, Ashokkumar M. Synergistic impacts of sonolysis aided photocatalytic degradation of water pollutant over perovskite-type CeNiO 3 nanospheres. NEW J CHEM 2022. [DOI: 10.1039/d2nj01127a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The current study reports on the preparation of perovskite-type CeNiO3 nanostructures as a sonophotocatalyst via a facile hydrothermal approach followed by annealing at 800 °C.
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Affiliation(s)
- Madappa C Maridevaru
- Nanomaterials & Solar Energy Conversion Lab, Department of Chemistry, National Institute of Technology, Tiruchirappalli, 620015, India
| | - Belqasem Aljafari
- Department of Electrical Engineering, College of Engineering, Najran University, Najran, 11001, Saudi Arabia
| | - Sambandam Anandan
- Nanomaterials & Solar Energy Conversion Lab, Department of Chemistry, National Institute of Technology, Tiruchirappalli, 620015, India
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Newhouse PF, Zhou L, Umehara M, Boyd DA, Soedarmadji E, Haber JA, Gregoire JM. Bi Alloying into Rare Earth Double Perovskites Enhances Synthesizability and Visible Light Absorption. ACS COMBINATORIAL SCIENCE 2020; 22:895-901. [PMID: 33118820 DOI: 10.1021/acscombsci.0c00177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A high throughput combinatorial synthesis utilizing inkjet printing of precursor inks was used to rapidly evaluate Bi-alloying into double perovskite oxides for enhanced visible light absorption. The fast visual screening of photo image scans of the library plates identifies 4-metal oxide compositions displaying an increase in light absorption, which subsequent UV-vis spectroscopy indicates is due to bandgap reduction. Structural characterization by X-ray diffraction (XRD) and Raman spectroscopy demonstrates that the visually darker composition range contains Bi-alloyed Sm2MnNiO6 (double perovskite structure), of the form (Bi,Sm)2MnNiO6. Bi alloying not only increases the visible absorption but also facilitates crystallization of this structure at the relatively low annealing temperature of 615 °C. Investigation of additional seven combinations of a rare earth (RE) and a transition metal (TM) with Bi and Mn indicates that Bi-alloying on the RE site occurs with similar effect in the family of rare earth oxide double perovskites.
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Affiliation(s)
- Paul F. Newhouse
- Joint Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, California 91125, United States
| | - Lan Zhou
- Joint Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, California 91125, United States
| | - Mitsutaro Umehara
- Joint Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, California 91125, United States
- Future Mobility Research Department, Toyota Research Institute of North America, Ann Arbor, Michigan 48105, United States
| | - David A. Boyd
- Joint Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, California 91125, United States
- Division of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, California 91125, United States
| | - Edwin Soedarmadji
- Joint Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, California 91125, United States
| | - Joel A. Haber
- Joint Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, California 91125, United States
| | - John M. Gregoire
- Joint Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, California 91125, United States
- Division of Engineering and Applied Science, California Institute of Technology, Pasadena, California 91125, United States
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