1
|
Zahra Alizadeh S, Karimi B, Vali H. From Deep Eutectic Solvents to Nitrogen‐rich Ordered Mesoporous Carbons: A Powerful Host for the Immobilization of Palladium Nanoparticles in the Aerobic Oxidation of Alcohols. ChemCatChem 2022. [DOI: 10.1002/cctc.202101621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Seyedeh Zahra Alizadeh
- Department of Chemistry Institute for Advanced Studies in Basic Sciences (IASBS) Prof. Sobouti Boulevard 45137-66731 Zanjan Iran
| | - Babak Karimi
- Department of Chemistry Institute for Advanced Studies in Basic Sciences (IASBS) Prof. Sobouti Boulevard 45137-66731 Zanjan Iran
- Research Center for Basic Sciences & Modern Technologies (RBST) Institute for Advanced Studies in Basic Sciences (IASBS) Prof. Sobouti Boulevard 45137-66731 Zanjan Iran
| | - Hojatollah Vali
- Department of Anatomy and Cell Biology and Facility for Electron Microscopy Research McGill University H3A2A7 Montreal Quebec Canada
| |
Collapse
|
2
|
Ganji N, Karimi B, Najafvand-Derikvandi S, Vali H. Palladium supported on a novel ordered mesoporous polypyrrole/carbon nanocomposite as a powerful heterogeneous catalyst for the aerobic oxidation of alcohols to carboxylic acids and ketones on water. RSC Adv 2020; 10:13616-13631. [PMID: 35492988 PMCID: PMC9051566 DOI: 10.1039/c9ra10941b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Accepted: 03/20/2020] [Indexed: 11/21/2022] Open
Abstract
Preparation of an ordered mesoporous polypyrrole/carbon (PPy/OMC) composite has been described through a two-step nanocasting process using KIT-6 as a template. Characterization of the PPy/OMC nanocomposite by various analysis methods such as TEM, XRD, TGA, SEM and N2 sorption confirmed the preparation of a material with ordered mesoporous structure, uniform pore size distribution, high surface area and high stability. This nanocomposite was then used for the immobilization of palladium nanoparticles. The nanoparticles were almost uniformly distributed on the support with a narrow particle size of 20-25 nm, confirmed by various analysis methods. Performance of the Pd@PPy/OMC catalyst was evaluated in the aerobic oxidation of various primary and secondary alcohols on water as a green solvent, giving the corresponding carboxylic acids and ketones in high yields and excellent selectivity. The catalyst could also be reused for at least 10 reaction runs without losing its catalytic activity and selectivity. High catalytic efficiency of the catalyst can be attributed to a strong synergism between the PPy/OMC and that of supported Pd nanoparticles.
Collapse
Affiliation(s)
- Nasim Ganji
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS) PO-Box 45195-1159, Gava-zang Zanjan 45137-6731 Iran
| | - Babak Karimi
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS) PO-Box 45195-1159, Gava-zang Zanjan 45137-6731 Iran .,Research Center for Basic Sciences & Modern Technologies (RBST), Institute for Advanced Studies in Basic Sciences (IASBS) Zanjan 45137-66731 Iran
| | - Sepideh Najafvand-Derikvandi
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS) PO-Box 45195-1159, Gava-zang Zanjan 45137-6731 Iran
| | - Hojatollah Vali
- Department of Anatomy and Cell Biology and Facility for Electron Microscopy Research McGill University Montreal Quebec, H3A 2A7 Canada
| |
Collapse
|
3
|
Martinez G, Malumbres A, Lopez A, Mallada R, Hueso JL, Santamaria J. Laser-Assisted Production of Carbon-Encapsulated Pt-Co Alloy Nanoparticles for Preferential Oxidation of Carbon Monoxide. Front Chem 2018; 6:487. [PMID: 30386771 PMCID: PMC6198107 DOI: 10.3389/fchem.2018.00487] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 09/25/2018] [Indexed: 11/17/2022] Open
Abstract
C-encapsulated highly pure PtxCoy alloy nanoparticles have been synthesized by an innovative one-step in-situ laser pyrolysis. The obtained X-ray diffraction pattern and transmission electron microscopy images correspond to PtxCoy alloy nanoparticles with average diameters of 2.4 nm and well-established crystalline structure. The synthesized PtxCoy/C catalyst containing 1.5 wt% of PtxCoy nanoparticles can achieve complete CO conversion in the temperature range 125–175°C working at weight hourly space velocities (WHSV) of 30 L h−1g−1. This study shows the first example of bimetallic nanoalloys synthesized by laser pyrolysis and paves the way for a wide variety of potential applications and metal combinations.
Collapse
Affiliation(s)
- Gema Martinez
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, Zaragoza, Spain.,Department of Chemical Engineering, Nanoscience Institute of Aragon (INA), Universidad de Zaragoza, Zaragoza, Spain
| | - Ana Malumbres
- Department of Chemical Engineering, Nanoscience Institute of Aragon (INA), Universidad de Zaragoza, Zaragoza, Spain
| | - Angela Lopez
- Department of Chemical Engineering, Nanoscience Institute of Aragon (INA), Universidad de Zaragoza, Zaragoza, Spain
| | - Reyes Mallada
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, Zaragoza, Spain.,Department of Chemical Engineering, Nanoscience Institute of Aragon (INA), Universidad de Zaragoza, Zaragoza, Spain
| | - Jose L Hueso
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, Zaragoza, Spain.,Department of Chemical Engineering, Nanoscience Institute of Aragon (INA), Universidad de Zaragoza, Zaragoza, Spain
| | - Jesus Santamaria
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, Zaragoza, Spain.,Department of Chemical Engineering, Nanoscience Institute of Aragon (INA), Universidad de Zaragoza, Zaragoza, Spain
| |
Collapse
|
4
|
Zhang ZX, Liu Y, Meng WJ, Wang J, Li W, Wang H, Zhao D, Lu JX. One-pot synthesis of Ni nanoparticle/ordered mesoporous carbon composite electrode materials for electrocatalytic reduction of aromatic ketones. NANOSCALE 2017; 9:17807-17813. [PMID: 29115341 DOI: 10.1039/c7nr06602c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A simple one-pot synthesis of Ni nanoparticle/ordered mesoporous carbon composite electrode materials is demonstrated for electrosynthesis for the first time. The obtained nanocomposites have uniform mesopore sizes (3.0-3.7 nm), large specific surface areas (506-633 m2 g-1), high pore volumes (0.28-0.38 cm3 g-1), well-graphitized carbon frameworks, and uniformly dispersed Ni nanoparticles (7-15 nm) embedded in the carbon pore walls. The prepared materials show very high performance in the selective (∼84%) electrocatalytic reduction of aromatic ketones into alcohols (∼79%).
Collapse
Affiliation(s)
- Zhi-Xia Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China.
| | | | | | | | | | | | | | | |
Collapse
|
5
|
Caputo G, Scarpellini A, Palazon F, Athanassiou A, Fragouli D. One-Pot Hybrid SnO 2 /Poly(methyl methacrylate) Nanocomposite Formation through Pulsed Laser Irradiation. Chemphyschem 2017; 18:1635-1641. [PMID: 28371061 DOI: 10.1002/cphc.201700132] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Indexed: 11/10/2022]
Abstract
The localized in situ formation of tin dioxide (SnO2 ) nanoparticles embedded in poly(methyl methacrylate) (PMMA) films is presented. This is achieved by the photoinduced conversion of the tin acetate precursor included in polymeric films, through controlled UV or visible pulsed laser irradiation at λ=355 and 532 nm, respectively. The evolution of the formation of nanoparticles is followed by UV/Vis spectroscopy and shows that their growth is affected in different ways by the laser pulses at the two applied wavelengths. This, in combination with electron microscopy analysis, reveals that, depending on the irradiation wavelength, the size of the nanoparticles in the final nanocomposites differs. This difference is attributed to distinct mechanistic pathways that lead to the synthesis of small nanoparticles (from 1.5 to 4.5 nm) at λ=355 nm, whereas bigger ones (from 5 to 16 nm) are formed at λ=532 nm. At the same time, structural studies with both X-ray and electron diffraction measurements demonstrate the crystallinity of SnO2 nanoparticles in both cases, whereas XPS analysis confirms the light-induced oxidation of tin acetate into SnO2 . Taken all together, it is demonstrated that the pulsed laser irradiation at λ=355 and 532 nm leads to the formation of SnO2 nanoparticles with defined features highly dispersed in PMMA solid matrices.
Collapse
Affiliation(s)
- Gianvito Caputo
- Smart Materials, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - Alice Scarpellini
- Electron Microscopy, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - Francisco Palazon
- Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | | | - Despina Fragouli
- Smart Materials, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| |
Collapse
|
6
|
Liu LH, Shih YH, Liu WL, Lin CH, Huang HY. Enzyme Immobilized on Nanoporous Carbon Derived from Metal-Organic Framework: A New Support for Biodiesel Synthesis. CHEMSUSCHEM 2017; 10:1364-1369. [PMID: 28195433 DOI: 10.1002/cssc.201700142] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 02/12/2017] [Indexed: 06/06/2023]
Abstract
In this study, nanoporous carbon (NPC) derived from metal-organic framework was used as support for the immobilization of Burkholderia cepacia lipase. The decorated aluminum oxide within the mesoporous NPC improved the enzyme loading efficiency as well as the catalytic ability for the transesterification of soybean oil, thus making it a promising green and sustainable catalytic system for industrial application.
Collapse
Affiliation(s)
- Li-Hao Liu
- Department of Chemistry, Chung Yuan Christian University, 200 Chung Pei Road, Chung Li District, Taoyuan City, 320, Taiwan
| | - Yung-Han Shih
- Department of Chemistry, Chung Yuan Christian University, 200 Chung Pei Road, Chung Li District, Taoyuan City, 320, Taiwan
| | - Wan-Ling Liu
- Department of Chemistry, Chung Yuan Christian University, 200 Chung Pei Road, Chung Li District, Taoyuan City, 320, Taiwan
| | - Chia-Her Lin
- Department of Chemistry, Chung Yuan Christian University, 200 Chung Pei Road, Chung Li District, Taoyuan City, 320, Taiwan
| | - Hsi-Ya Huang
- Department of Chemistry, Chung Yuan Christian University, 200 Chung Pei Road, Chung Li District, Taoyuan City, 320, Taiwan
| |
Collapse
|
7
|
Direct synthesis of graphitic mesoporous carbon from green phenolic resins exposed to subsequent UV and IR laser irradiations. Sci Rep 2016; 6:39617. [PMID: 28000781 PMCID: PMC5175163 DOI: 10.1038/srep39617] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 11/23/2016] [Indexed: 02/08/2023] Open
Abstract
The design of mesoporous carbon materials with controlled textural and structural features by rapid, cost-effective and eco-friendly means is highly demanded for many fields of applications. We report herein on the fast and tailored synthesis of mesoporous carbon by UV and IR laser assisted irradiations of a solution consisting of green phenolic resins and surfactant agent. By tailoring the UV laser parameters such as energy, pulse repetition rate or exposure time carbon materials with different pore size, architecture and wall thickness were obtained. By increasing irradiation dose, the mesopore size diminishes in the favor of wall thickness while the morphology shifts from worm-like to an ordered hexagonal one. This was related to the intensification of phenolic resin cross-linking which induces the reduction of H-bonding with the template as highlighted by 13C and 1H NMR. In addition, mesoporous carbon with graphitic structure was obtained by IR laser irradiation at room temperature and in very short time periods compared to the classical long thermal treatment at very high temperatures. Therefore, the carbon texture and structure can be tuned only by playing with laser parameters, without extra chemicals, as usually required.
Collapse
|
8
|
Synthesis and stability of Pd–Rh nanoalloys with fully tunable particle size and composition. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.nanoso.2016.06.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
9
|
Gao W, Li W, Xue Z, Pal M, Liu Y, Wang C, Wang J, Wang S, Wan X, Liu Y, Zhao D. Preparation of mesoporous TiO2–C composites as an advanced Ni catalyst support for reduction of 4-nitrophenol. NEW J CHEM 2016. [DOI: 10.1039/c5nj02976g] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ordered mesoporous Ni/TiO2–C composites with highly dispersed nickel and TiO2 nanoparticles have been synthesized via a multi-component co-assembly method.
Collapse
|
10
|
Shi WP, Liu WF, Chen L, Qin L, Yang YZ, Liu XG. Effect of annealing temperature on the structure of carbon encapsulated Fe3O4 nanospheres. RSC Adv 2015. [DOI: 10.1039/c5ra19326e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Yolk–shell structured Fe3O4@C was obtained at 600 °C. A possible evolution mechanism of core–shell to yolk–shell Fe3O4@C is elaborated.
Collapse
Affiliation(s)
- W. P. Shi
- Key Laboratory of Interface Science and Engineering in Advanced Materials
- Taiyuan University of Technology
- Ministry of Education
- Taiyuan 030024
- China
| | - W. F. Liu
- Key Laboratory of Interface Science and Engineering in Advanced Materials
- Taiyuan University of Technology
- Ministry of Education
- Taiyuan 030024
- China
| | - L. Chen
- Key Laboratory of Interface Science and Engineering in Advanced Materials
- Taiyuan University of Technology
- Ministry of Education
- Taiyuan 030024
- China
| | - L. Qin
- Key Laboratory of Interface Science and Engineering in Advanced Materials
- Taiyuan University of Technology
- Ministry of Education
- Taiyuan 030024
- China
| | - Y. Z. Yang
- Key Laboratory of Interface Science and Engineering in Advanced Materials
- Taiyuan University of Technology
- Ministry of Education
- Taiyuan 030024
- China
| | - X. G. Liu
- Key Laboratory of Interface Science and Engineering in Advanced Materials
- Taiyuan University of Technology
- Ministry of Education
- Taiyuan 030024
- China
| |
Collapse
|