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Sriram B, Wang SF, Kameoka S. A Comparative Study of Hydrothermally Leached Al 3TM and Al 3TM-Rh (TM=Zr, V, Ce) Intermetallic Compounds for Catalytic Oxidation of Carbon Monoxide. CHEMSUSCHEM 2024:e202401444. [PMID: 39221979 DOI: 10.1002/cssc.202401444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Revised: 08/17/2024] [Accepted: 08/30/2024] [Indexed: 09/04/2024]
Abstract
Rise of the mute assassin "carbon monoxide (CO)" levels impact all aerobic life. The elevated rates of CO concentration endure climatic and geographical characteristics that exacerbate air pollution. Herein, a simple approach for hydrothermal leaching (HyTL) of Al3TM-Rh0.5 (Target material (TM)=Zr, V, Ce) and Al3TM (TM=Zr, V, Ce) intermetallic compounds produces leached products of ZrO2, VO2, and CeO2 with Rhodium (Rh) as an active component. The characterization result reveals the HyTL process and the presence of the active Rh element that elevated the performance of HyTL-Al3Zr-Rh0.5 towards CO conversion compared to other samples. Further, the cubic ZrO2 phase selectively forms after HyTL at 130 °C even though the formation of the cubic ZrO2 phase takes place at a high temperature. Moreover, the presence of Rh promotes higher catalytic activity in all the cases with low temperatures. The advancement in the present study towards the catalytic oxidation of CO over the hydrothermally leached ZrO2-Rh nanocatalyst guarantees the perspective of the aggregation-activation process.
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Affiliation(s)
- Balasubramanian Sriram
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan
| | - Sea-Fue Wang
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan
| | - Satoshi Kameoka
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan
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Umesh NM, Wang SF, Kameoka S. Promotional effects of Pt–CeO2 fabricated by hydrothermal leaching of Al78Ce22-xPtx (x = 0, 0.1) intermetallic compound for efficient catalytic CO oxidation. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.122984] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Liu YX, Ohhashi S, Kameoka S, Tsai AP. Highly dispersive Au nanoparticles on TiO2 nanofibers as a supported catalyst synthesized from Al-Ti-Au intermetallic compound. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2019.115249] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Simanullang WF, Itahara H, Takahashi N, Kosaka S, Shimizu KI, Furukawa S. Highly active and noble-metal-alternative hydrogenation catalysts prepared by dealloying Ni-Si intermetallic compounds. Chem Commun (Camb) 2019; 55:13999-14002. [PMID: 31687694 DOI: 10.1039/c9cc07862b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Noble-metal-alternative Ni-Si catalysts more active than Pd in the hydrogen storage reaction were developed using a unique procedure, i.e., surface dealloying with hydrofluoric acid treatment. The combination of the structural analysis and the DFT calculation revealed a specific active site structure, a Ni cluster embedded in a SiO2 matrix, and its unprecedented role in the molecular conversion.
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Affiliation(s)
- Wiyanti F Simanullang
- Institute for Catalysis, Hokkaido University, N21 W10, Kita-ku, Sapporo, 001-0021, Japan.
| | - Hiroshi Itahara
- Toyota Central Research & Development Labs, Inc., 41-1 Yokomichi Nagakute, Aichi 480-1192, Japan
| | - Naoko Takahashi
- Toyota Central Research & Development Labs, Inc., 41-1 Yokomichi Nagakute, Aichi 480-1192, Japan
| | - Satoru Kosaka
- Toyota Central Research & Development Labs, Inc., 41-1 Yokomichi Nagakute, Aichi 480-1192, Japan
| | - Ken-Ichi Shimizu
- Institute for Catalysis, Hokkaido University, N21 W10, Kita-ku, Sapporo, 001-0021, Japan. and Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, Katsura, Kyoto 615-8520, Japan
| | - Shinya Furukawa
- Institute for Catalysis, Hokkaido University, N21 W10, Kita-ku, Sapporo, 001-0021, Japan. and Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, Katsura, Kyoto 615-8520, Japan
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Yamada T, Kojima T, Abe E, Kameoka S, Murakami Y, Gille P, Tsai AP. Probing Single Pt Atoms in Complex Intermetallic Al 13Fe 4. J Am Chem Soc 2018; 140:3838-3841. [PMID: 29510035 DOI: 10.1021/jacs.7b13658] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The atomic structure of a 0.2 atom % Pt-doped complex metallic alloy, monoclinic Al13Fe4, was investigated using a single crystal prepared by the Czochralski method. High-angle annular dark-field scanning transmission electron microscopy showed that the Pt atoms were dispersed as single atoms and substituted at Fe sites in Al13Fe4. Single-crystal X-ray structural analysis revealed that the Pt atoms preferentially substitute at Fe(1). Unlike those that have been reported, Pt single atoms in the surface layers showed lower activity and selectivity than those of Al2Pt and bulk Pt for propyne hydrogenation, indicating that the active state of a given single-atom Pt site is strongly dominated by the bonding to surrounding Al atoms.
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Affiliation(s)
- Tsunetomo Yamada
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM) , Tohoku University , 2-1-1 Katahira, Aoba-ku , Sendai 980-8577 , Japan
| | - Takayuki Kojima
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM) , Tohoku University , 2-1-1 Katahira, Aoba-ku , Sendai 980-8577 , Japan.,Frontier Research Institute for Interdisciplinary Sciences , Tohoku University , Aramaki aza Aoba 6-3, Aoba-ku , Sendai 980-8578 , Japan
| | - Eiji Abe
- Department of Materials Science and Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-8656 , Japan
| | - Satoshi Kameoka
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM) , Tohoku University , 2-1-1 Katahira, Aoba-ku , Sendai 980-8577 , Japan
| | - Yumi Murakami
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM) , Tohoku University , 2-1-1 Katahira, Aoba-ku , Sendai 980-8577 , Japan
| | - Peter Gille
- Department of Earth and Environmental Sciences , Ludwig Maximilians University Munich , Theresienstr. 41 , Munich 80333 , Germany
| | - An Pang Tsai
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM) , Tohoku University , 2-1-1 Katahira, Aoba-ku , Sendai 980-8577 , Japan
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