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Mella C, Pecchi G, Godard C, Claver C, Márquez A, Campos CH. Immobilized Pd metal‐complex on polymeric resin with high surface areas for recyclable catalyst: Effect of the immobilization method on nature of palladium species. J Appl Polym Sci 2023. [DOI: 10.1002/app.53608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Claudio Mella
- Departamento de Polímeros, Facultad de Ciencias Químicas Universidad de Concepción Concepción Chile
| | - Gina Pecchi
- Departamento de Polímeros, Facultad de Ciencias Químicas Universidad de Concepción Concepción Chile
- Millenium Nuclei on Catalytic Processes towards Sustainable Chemistry (CSC) Santiago Chile
| | - Cyril Godard
- Department de Química Física i Inorgánica Universitat Rovira i Virgili Tarragona Spain
| | - Carmen Claver
- Department de Química Física i Inorgánica Universitat Rovira i Virgili Tarragona Spain
| | - Abdiel Márquez
- Centro de Nanociencias y Nanotecnología Universidad Nacional Autónoma de México Ensenada Baja California Mexico
| | - Cristian H. Campos
- Departamento de Polímeros, Facultad de Ciencias Químicas Universidad de Concepción Concepción Chile
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Nagai D, Isobe N, Inoue T, Okamoto S, Maki Y, Yamanobe T. Preparation of Various Nanomaterials via Controlled Gelation of a Hydrophilic Polymer Bearing Metal-Coordination Units with Metal Ions. Gels 2022; 8:gels8070435. [PMID: 35877520 PMCID: PMC9322127 DOI: 10.3390/gels8070435] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 06/28/2022] [Accepted: 07/08/2022] [Indexed: 02/04/2023] Open
Abstract
We investigated the gelation of a hydrophilic polymer with metal-coordination units (HPMC) and metal ions (PdII or AuIII). Gelation proceeded by addition of an HPMC solution in N-methyl-2-pyrrolidone (NMP) to a metal ion aqueous solution. An increase in the composition ratio of the metal-coordination units from 10 mol% to 34 mol% (HPMC-34) increased the cross-linking rate with AuIII. Cross-linking immediately occurred after dropwise addition of an HPMC-34 solution to the AuIII solution, generating the separation between the phases of HPMC-34 and AuIII. The cross-linking of AuIII proceeded from the surface to the inside of the HPMC-34 droplets, affording spherical gels. In contrast, a decrease in the ratio of metal-coordination units from 10 mol% to 4 mol% (HPMC-4) decreased the PdII cross-linking rate. The cross-linking occurred gradually and the gels extended to the bottom of the vessel, forming fibrous gels. On the basis of the mechanism for the formation of gels with different morphologies, the gelation of HPMC-34 and AuIII provided nanosheets via gelation at the interface between the AuIII solution and the HPMC-34 solution. The gelation of HPMC-4 and PdII afforded nanofibers by a facile method, i.e., dropwise addition of the HPMC-4 solution to the PdII solution. These results demonstrated that changing the composition ratio of the metal-coordination units in HPMC can control the gelation behavior, resulting in different types of nanomaterials.
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Affiliation(s)
- Daisuke Nagai
- School of Food and Nutritional Science, University of Shizuoka, 52-1 Yada, Shizuoka 422-8526, Shizuoka, Japan; (N.I.); (S.O.)
- Correspondence: ; Tel.: +81-54-264-5729
| | - Naoki Isobe
- School of Food and Nutritional Science, University of Shizuoka, 52-1 Yada, Shizuoka 422-8526, Shizuoka, Japan; (N.I.); (S.O.)
| | - Tatsushi Inoue
- Division of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu 376-8515, Gunma, Japan; (T.I.); (T.Y.)
| | - Shusuke Okamoto
- School of Food and Nutritional Science, University of Shizuoka, 52-1 Yada, Shizuoka 422-8526, Shizuoka, Japan; (N.I.); (S.O.)
| | - Yasuyuki Maki
- Department of Chemistry, Graduate School of Science, Kyusyu University, 744 Motooka, Fukuoka 819-0395, Fukuoka, Japan;
| | - Takeshi Yamanobe
- Division of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu 376-8515, Gunma, Japan; (T.I.); (T.Y.)
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NiPd mediated by conductive metal organic frameworks with facilitated electron transfer for assaying of H2O2 released from living cells. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2021.115985] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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