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Pornsetmetakul P, Maineawklang N, Prasertsab A, Salakhum S, Hensen EJM, Wattanakit C. Mild Hydrogenation of 2-Furoic Acid by Pt Nanoparticles Dispersed in a Hierarchical ZSM-5 Zeolite. Chem Asian J 2023; 18:e202300733. [PMID: 37792279 DOI: 10.1002/asia.202300733] [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: 08/21/2023] [Revised: 10/04/2023] [Accepted: 10/04/2023] [Indexed: 10/05/2023]
Abstract
Hydrogenation of biobased compounds can add value to platform molecules obtained from biomass refining. Herein, we explore the hydrogenation of 2-furoic acid (2-furancarboxylic acid, FCA), a derivative of furfural, with H2 generated in situ by NaBH4 hydrolysis at ambient conditions. Nearly complete conversion of FCA was obtained with tetrahydrofuroic acid (THFA) and 5-hydroxyvaleric acid (5-HVA) as the only two reaction products over Pt nanoparticles supported on hierarchical ZSM-5. Small Pt nanoparticles (2 to 3 nm) were stabilized by ZSM-5 nanosheets. At an optimized Pt loading, the Pt nanoparticles can catalyze the hydrolysis of NaBH4 and the subsequent hydrogenation of FCA with the assistance of Brønsted acid sites. Nanostructuring ZSM-5 into nanosheets and its acidity contributes to the stability of the dispersed Pt nanoparticles. Deactivation due to NaBO2 deposition on the Pt particles can be countered by a simple washing treatment. Overall, this approach shows the promise of mild hydrogenation of biobased feedstock coupled with NaBH4 hydrolysis.
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Affiliation(s)
- Peerapol Pornsetmetakul
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong, 21210, Thailand
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P. O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - Narasiri Maineawklang
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong, 21210, Thailand
| | - Anittha Prasertsab
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong, 21210, Thailand
| | - Saros Salakhum
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong, 21210, Thailand
| | - Emiel J M Hensen
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P. O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - Chularat Wattanakit
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong, 21210, Thailand
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2
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Steering the Metal Precursor Location in Pd/Zeotype Catalysts and Its Implications for Catalysis. CHEMISTRY 2023. [DOI: 10.3390/chemistry5010026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023] Open
Abstract
Bifunctional catalysts containing a dehydrogenation–hydrogenation function and an acidic function are widely applied for the hydroconversion of hydrocarbon feedstocks obtained from both fossil and renewable resources. It is well known that the distance between the two functionalities is important for the performance of the catalyst. In this study, we show that the heat treatment of the catalyst precursor can be used to steer the location of the Pd precursor with respect to the acid sites in SAPO-11 and ZSM-22 zeotype materials when ions are exchanged with Pd(NH3)4(NO3)2. Two sets of catalysts were prepared based on composite materials of alumina with either SAPO-11 or ZSM-22. Pd was placed on/in the zeotype, followed by a calcination-reduction (CR) or direct reduction (DR) treatment. Furthermore, catalysts with Pd on the alumina binder were prepared. CR results in having more Pd nanoparticles inside the zeotype crystals, whereas DR yields more particles on the outer surface of the zeotype crystals as is confirmed using HAADF-STEM and XPS measurements. The catalytic performance in both n-heptane and n-hexadecane hydroconversion of the catalysts shows that having the Pd nanoparticles on the alumina binder is most beneficial for maximizing the isomer yields. Pd-on-zeotype catalysts prepared using the DR approach show intermediate performances, outperforming their Pd-in-zeotype counterparts that were prepared with the CR approach.
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3
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Li T, Wang S, Yu H, Yuan L, Zhang D, Yin H. Encapsulation of Noble Metal Nanoclusters into Zeolites for Highly Efficient Catalytic Hydrogenation of Nitroaromatics. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c02038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Tianhao Li
- Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China
| | - Shiwei Wang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China
| | - Hongbo Yu
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China
| | - Luohao Yuan
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China
| | - Dengsong Zhang
- Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Hongfeng Yin
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China
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4
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Cheng K, Smulders LCJ, van der Wal LI, Oenema J, Meeldijk JD, Visser NL, Sunley G, Roberts T, Xu Z, Doskocil E, Yoshida H, Zheng Y, Zečević J, de Jongh PE, de Jong KP. Maximizing noble metal utilization in solid catalysts by control of nanoparticle location. Science 2022; 377:204-208. [DOI: 10.1126/science.abn8289] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Maximizing the utilization of noble metals is crucial for applications such as catalysis. We found that the minimum loading of platinum for optimal performance in the hydroconversion of
n
-alkanes for industrially relevant bifunctional catalysts could be reduced by a factor of 10 or more through the rational arranging of functional sites at the nanoscale. Intentionally depositing traces of platinum nanoparticles on the alumina binder or the outer surface of zeolite crystals, instead of inside the zeolite crystals, enhanced isomer selectivity without compromising activity. Separation between platinum and zeolite acid sites preserved the metal and acid functions by limiting micropore blockage by metal clusters and enhancing access to metal sites. Reduced platinum nanoparticles were more active than platinum single atoms strongly bonded to the alumina binder.
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Affiliation(s)
- Kang Cheng
- Materials Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, 3584 CG Utrecht, Netherlands
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Luc C. J. Smulders
- Materials Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, 3584 CG Utrecht, Netherlands
| | - Lars I. van der Wal
- Materials Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, 3584 CG Utrecht, Netherlands
| | - Jogchum Oenema
- Materials Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, 3584 CG Utrecht, Netherlands
| | - Johannes D. Meeldijk
- Materials Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, 3584 CG Utrecht, Netherlands
- Electron Microscopy Centre, Utrecht University, 3584 CG Utrecht, Netherlands
| | - Nienke L. Visser
- Materials Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, 3584 CG Utrecht, Netherlands
| | - Glenn Sunley
- Applied Sciences, bp Innovation and Engineering, BP plc, Saltend, Hull HU12 8DS, UK
| | - Tegan Roberts
- Applied Sciences, bp Innovation and Engineering, BP plc, Saltend, Hull HU12 8DS, UK
| | - Zhuoran Xu
- Applied Sciences, bp Innovation and Engineering, BP plc, Naperville, IL 60563, USA
| | - Eric Doskocil
- Applied Sciences, bp Innovation and Engineering, BP plc, Naperville, IL 60563, USA
| | - Hideto Yoshida
- Materials Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, 3584 CG Utrecht, Netherlands
- The Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Yanping Zheng
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jovana Zečević
- Materials Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, 3584 CG Utrecht, Netherlands
| | - Petra E. de Jongh
- Materials Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, 3584 CG Utrecht, Netherlands
| | - Krijn P. de Jong
- Materials Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, 3584 CG Utrecht, Netherlands
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5
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Lee S, Frimpong B, Abbey S, Moon YS, Yoo K, Oh YM, Kim SK, Kim SJ, Oh MW. Fabrication of conductive silver paste recovered from leaching of waste catalyst using hydrochloric acid. RSC Adv 2022; 12:9698-9703. [PMID: 35424952 PMCID: PMC8959451 DOI: 10.1039/d1ra09435a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 03/11/2022] [Indexed: 11/29/2022] Open
Abstract
Transition metal compounds based on silver (Ag) and palladium (Pd) are extensively used as catalysts in the petrochemical industries. The catalytic activities of Ag and Pd decrease over time and hence need to be discarded. The recovery of elements like Ag from waste catalyst is essential because of its limited availability and cost, and it is environmentally beneficial with regards to recycling. In this study, Pd and Ag were leached from waste catalyst providing an alternative source suitable for a Ag paste electrode. Through an efficient reduction process, AgCl particles were obtained which serve as a precursor to synthesize Ag using ammonia as the solvent. The obtained Ag was fabricated to Ag paste by using mixed dispersion and solvent. The electrical resistivity of the Ag paste was recorded as 6.14 μΩ cm at 417 °C in a hydrogen atmosphere. The silver paste was synthesized by a hydrometallurgical method from waste catalyst.![]()
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Affiliation(s)
- Suhyeon Lee
- Department of Advanced Materials & Chemical Engineering, University of Science & Technology Daejeon Republic of Korea.,Department of Materials Science and Engineering, Hanbat National University Daejeon Republic of Korea .,Environment and Sustainable Resources Research Center, Korea Research Institute of Chemical Technology Daejeon Republic of Korea
| | - Brakowaa Frimpong
- Department of Materials Science and Engineering, Hanbat National University Daejeon Republic of Korea
| | - Stanley Abbey
- Department of Materials Science and Engineering, Hanbat National University Daejeon Republic of Korea
| | - Yoon Sil Moon
- Mineral Resources Research Division, Korea Institute of Geoscience & Mineral Resources Daejeon Republic of Korea
| | - Kyoungkeun Yoo
- Department of Energy & Resources Engineering, Korea Maritime and Ocean University Busan Republic of Korea
| | | | - Soo-Kyung Kim
- Mineral Resources Research Division, Korea Institute of Geoscience & Mineral Resources Daejeon Republic of Korea
| | - Sang-Joon Kim
- Department of Advanced Materials & Chemical Engineering, University of Science & Technology Daejeon Republic of Korea.,Environment and Sustainable Resources Research Center, Korea Research Institute of Chemical Technology Daejeon Republic of Korea
| | - Min-Wook Oh
- Department of Materials Science and Engineering, Hanbat National University Daejeon Republic of Korea
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6
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van der Wal LI, Oenema J, Smulders LCJ, Samplonius NJ, Nandpersad KR, Zečević J, de Jong KP. Control and Impact of Metal Loading Heterogeneities at the Nanoscale on the Performance of Pt/Zeolite Y Catalysts for Alkane Hydroconversion. ACS Catal 2021; 11:3842-3855. [PMID: 33833901 PMCID: PMC8022326 DOI: 10.1021/acscatal.1c00211] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 03/02/2021] [Indexed: 11/29/2022]
Abstract
![]()
The preparation of
zeolite-based bifunctional catalysts with low
noble metal loadings while maintaining optimal performance has been
studied. We have deposited 0.03 to 1.0 wt % Pt on zeolite H-USY (Si/Al
∼ 30 at./at.) using either platinum(II) tetraammine nitrate
(PTA, Pt(NH3)4(NO3)2)
or hexachloroplatinic(IV) acid (CPA, H2PtCl6·6H2O) and studied the nanoscale Pt loading heterogeneities
and global hydroconversion performance of the resulting Pt/Y catalysts.
Pt/Y samples prepared with PTA and a global Pt loading as low as 0.3
wt % Pt (nPt/nA = 0.08 mol/mol, where nPt is the number of Pt surface
sites and nA is the number of acid sites)
maintained catalytic performance during n-heptane
(T = 210–350 °C, P =
10 bar) as well as n-hexadecane (T = 170–280 °C, P = 5 bar) hydroisomerization
similar to a 1.0 wt % Pt sample. For Pt/Y catalysts prepared with
CPA, a loading of 0.3 wt % Pt (nPt/nA = 0.08 mol/mol) sufficed for n-heptane hydroisomerization, whereas a detrimental effect on n-hexadecane hydroisomerization was observed, in particular
undesired secondary cracking occurred to a significant extent. The
differences between PTA and CPA are explained by differences in Pt
loading per zeolite Y crystal (size ∼ 500 nm), shown from extensive
transmission electron microscopy energy-dispersive X-ray spectroscopy
experiments, whereby crystal-based nPt/nA ratios could be determined. From
earlier studies, it is known that the Al content per crystal of USY
varied tremendously and that PTA preferentially is deposited on crystals
with higher Al content due to ion-exchange with zeolite protons. Here,
we show that this preferential deposition of PTA on Al-rich crystals
led to a more constant value of nPt/nA ratio from one zeolite crystal to another,
which was beneficial for catalytic performance. Use of CPA led to
a large variation of Pt loading independent of Al content, giving
rise to larger variations of nPt/nA ratio from crystal to crystal that negatively
affected the catalytic performance. This study thus shows the impact
of local metal loading variations at the zeolite crystal scale (nanoscale)
caused by different interactions of metal precursors with the zeolite,
which are essential to design and synthesize optimal catalysts, in
particular at low noble metal loadings.
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Affiliation(s)
- Lars I. van der Wal
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Jogchum Oenema
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Luc C. J. Smulders
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Nonne J. Samplonius
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Karan R. Nandpersad
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Jovana Zečević
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Krijn P. de Jong
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
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7
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Mesa HJ, Licea YE, Rodrigues VDO, Faro AC. Platinum catalysts supported on ZSM5 zeolites with a hierarchical pore structure: characterization and performance in n-hexadecane hydroconversion. REACTION KINETICS MECHANISMS AND CATALYSIS 2021. [DOI: 10.1007/s11144-020-01920-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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8
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Zhang J, Maximov AL, Bai X, Wang W, Xiao L, Lin H, Wu W. Shape Selectivity in Hydroisomerization of n-Hexadecane over Pd Supported on Zeolites: ZSM-22, ZSM-12 and Beta. RUSS J APPL CHEM+ 2020. [DOI: 10.1134/s1070427220090165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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9
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González-Marcos MP, Fuentes-Ordóñez EG, Salbidegoitia JA, González-Velasco JR. Optimization of Supports in Bifunctional Supported Pt Catalysts for Polystyrene Hydrocracking to Liquid Fuels. Top Catal 2020. [DOI: 10.1007/s11244-020-01393-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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10
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Supported Palladium Nanocatalysts: Recent Findings in Hydrogenation Reactions. Processes (Basel) 2020. [DOI: 10.3390/pr8091172] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Catalysis has witnessed a dramatic increase on the use of metallic nanoparticles in the last decade, opening endless opportunities in a wide range of research areas. As one of the most investigated catalysts in organic synthesis, palladium finds numerous applications being of significant relevance in industrial hydrogenation reactions. The immobilization of Pd nanoparticles in porous solid supports offers great advantages in heterogeneous catalysis, allowing control of the major factors that influence activity and selectivity. The present review deals with recent developments in the preparation and applications of immobilized Pd nanoparticles on solid supports as catalysts for hydrogenation reactions, aiming to give an insight on the key factors that contribute to enhanced activity and selectivity. The application of mesoporous silicas, carbonaceous materials, zeolites, and metal organic frameworks (MOFs) as supports for palladium nanoparticles is addressed.
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11
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Sun L, Wu X, Zhou Y, Wang C, Meng Z, He J. Preparation of Fe3O4–HNTs Hybrid Material and Its Effect on Epoxy Coating Properties. RUSS J APPL CHEM+ 2020. [DOI: 10.1134/s107042722009013x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Zhang Y, Fulajtárová K, Kubů M, Mazur M, Hronec M, Čejka J. Electronic/steric effects in hydrogenation of nitroarenes over the heterogeneous Pd@BEA and Pd@MWW catalysts. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.11.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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13
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Wang N, Sun Q, Yu J. Ultrasmall Metal Nanoparticles Confined within Crystalline Nanoporous Materials: A Fascinating Class of Nanocatalysts. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1803966. [PMID: 30276888 DOI: 10.1002/adma.201803966] [Citation(s) in RCA: 162] [Impact Index Per Article: 32.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 07/20/2018] [Indexed: 05/27/2023]
Abstract
Crystalline nanoporous materials with uniform porous structures, such as zeolites and metal-organic frameworks (MOFs), have proven to be ideal supports to encapsulate ultrasmall metal nanoparticles (MNPs) inside their void nanospaces to generate high-efficiency nanocatalysts. The nanopore-encaged metal catalysts exhibit superior catalytic performance as well as high stability and catalytic shape selectivity endowed by the nanoporous matrix. In addition, the synergistic effect of confined MNPs and nanoporous frameworks with active sites can further promote the catalytic activities of the composite catalysts. Herein, recent progress in nanopore-encaged metal nanocatalysts is reviewed, with a special focus on advances in synthetic strategies for ultrasmall MNPs (<5 nm), clusters, and even single atoms confined within zeolites and MOFs for various heterogeneous catalytic reactions. In addition, some advanced characterization methods to elucidate the atomic-scale structures of the nanocatalysts are presented, and the current limitations of and future opportunities for these fantastic nanocatalysts are also highlighted and discussed. The aim is to provide some guidance for the rational synthesis of nanopore-encaged metal catalysts and to inspire their further applications to meet the emerging demands in catalytic fields.
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Affiliation(s)
- Ning Wang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Qiming Sun
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Jihong Yu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
- International Center of Future Science, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
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14
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Study of PtO x/TiO₂ Photocatalysts in the Photocatalytic Reforming of Glycerol: The Role of Co-Catalyst Formation. MATERIALS 2018; 11:ma11101927. [PMID: 30308991 PMCID: PMC6212858 DOI: 10.3390/ma11101927] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 09/21/2018] [Accepted: 10/02/2018] [Indexed: 01/22/2023]
Abstract
In this study, relationships between preparation conditions, structure, and activity of Pt-containing TiO2 photocatalysts in photoinduced reforming of glycerol for H2 production were explored. Commercial Aerolyst® TiO2 (P25) and homemade TiO2 prepared by precipitation-aging method were used as semiconductors. Pt co-catalysts were prepared by incipient wetness impregnation from aqueous solution of Pt(NH3)4(NO3)2 and activated by calcination, high temperature hydrogen, or nitrogen treatments. The chemico-physical and structural properties were evaluated by XRD, 1H MAS NMR, ESR, XPS, TG-MS and TEM. The highest H2 evolution rate was observed over P25 based samples and the H2 treatment resulted in more active samples than the other co-catalyst formation methods. In all calcined samples, reduction of Pt occurred during the photocatalytic reaction. Platinum was more easily reducible in all of the P25 supported samples compared to those obtained from the more water-retentive homemade TiO2. This result was related to the negative effect of the adsorbed water content of the homemade TiO2 on Pt reduction and on particle growth during co-catalyst formation.
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15
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Fuentes-Ordóñez EG, Salbidegoitia JA, González-Marcos MP, González-Velasco JR. Mechanism and kinetics in catalytic hydrocracking of polystyrene in solution. Polym Degrad Stab 2016. [DOI: 10.1016/j.polymdegradstab.2015.12.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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16
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Platinum nanoparticles entrapped in zeolite nanoshells as active and sintering-resistant arene hydrogenation catalysts. J Catal 2015. [DOI: 10.1016/j.jcat.2015.09.006] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Thaker AH, John M, Kumar K, Kasture MW, Parmar S, Newalkar BL, Parikh PA. Hydroisomerization of Biomass Derived n-Hexadecane Towards Diesel Pool: Effect of Selective Removal External Surface Sites from Pt/ZSM-22. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2015. [DOI: 10.1515/ijcre-2015-0049] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Influence of dealumination of zeolite ZSM-22 (Si/Al ratio of 45) by treating it with oxalic acid on its catalytic performance in n-hexadecane hydroisomerization reaction was studied. This reaction is an attempt in the direction of green and sustainable source of diesel via improving the cold-flow properties of deoxygenated vegetable oils. Pt (0.5 wt%) on ZSM-22 treated with 1 M oxalic acid afforded highest yields of the mono-branched paraffins. This improved is attributed to selective removal of active sites on external surface of zeolite crystals (responsible for undesired cracking reactions) using the bulkier dealuminating agent, oxalic acid. Thus, pore-mouth key-lock mechanism was brought to play the role to cause high selectivity to mono-branched isomers. Preferential external site deactivation was inferred from mesitylene cracking results. Effects of operating parameters such as temperature, and space velocity on product distribution also were studied. Also, kinetics of the reactions involved too has been in brief reported.
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Affiliation(s)
- Abhijeet H. Thaker
- Chemical Engineering Department, S.V. National Institute of Technology, Surat 395 007, India
| | - Mathew John
- Corporate R&D Centre, Bharat Petroleum Corporation Limited, Plot 2A, Udyog Kendra, Greater Noida 201 306, India
| | - Kishore Kumar
- Corporate R&D Centre, Bharat Petroleum Corporation Limited, Plot 2A, Udyog Kendra, Greater Noida 201 306, India
| | - Mahesh W. Kasture
- Corporate R&D Centre, Bharat Petroleum Corporation Limited, Plot 2A, Udyog Kendra, Greater Noida 201 306, India
| | - Snehalkumar Parmar
- Department of Chemical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110 016, India
| | - Bharat L. Newalkar
- Corporate R&D Centre, Bharat Petroleum Corporation Limited, Plot 2A, Udyog Kendra, Greater Noida 201 306, India
| | - Parimal A. Parikh
- Chemical Engineering Department, S.V. National Institute of Technology, Surat 395 007, India
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18
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Hydroisomerization of n-hexadecane over Pt/ZSM-22 framework: Effect of divalent cation exchange. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcata.2015.04.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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19
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20
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Kent PD, Mondloch JE, Finke RG. A Four-Step Mechanism for the Formation of Supported-Nanoparticle Heterogenous Catalysts in Contact with Solution: The Conversion of Ir(1,5-COD)Cl/γ-Al2O3 to Ir(0)∼170/γ-Al2O3. J Am Chem Soc 2014; 136:1930-41. [DOI: 10.1021/ja410194r] [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]
Affiliation(s)
- Patrick D. Kent
- Department
of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Joseph E. Mondloch
- Department
of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Richard G. Finke
- Department
of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
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Fuentes-Ordóñez EG, Salbidegoitia JA, González-Marcos MP, González-Velasco JR. Transport Phenomena in Catalytic Hydrocracking of Polystyrene in Solution. Ind Eng Chem Res 2013. [DOI: 10.1021/ie401968r] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Edwin G. Fuentes-Ordóñez
- Group of Chemical Technologies
for Environmental
Sustainability, Department of Chemical Engineering, Faculty of Science and Technology, The University of the Basque Country—UPV/EHU,
P.O. Box 644, E-48080 Bilbao, Spain
| | - Joseba A. Salbidegoitia
- Group of Chemical Technologies
for Environmental
Sustainability, Department of Chemical Engineering, Faculty of Science and Technology, The University of the Basque Country—UPV/EHU,
P.O. Box 644, E-48080 Bilbao, Spain
| | - María P. González-Marcos
- Group of Chemical Technologies
for Environmental
Sustainability, Department of Chemical Engineering, Faculty of Science and Technology, The University of the Basque Country—UPV/EHU,
P.O. Box 644, E-48080 Bilbao, Spain
| | - Juan R. González-Velasco
- Group of Chemical Technologies
for Environmental
Sustainability, Department of Chemical Engineering, Faculty of Science and Technology, The University of the Basque Country—UPV/EHU,
P.O. Box 644, E-48080 Bilbao, Spain
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22
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Characterization and performance of the bifunctional platinum-loaded calcium-hydroxyapatite in the one-step synthesis of methyl isobutyl ketone. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcata.2013.04.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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n-Heptane hydroisomerization over Pt/MFI zeolite nanosheets: Effects of zeolite crystal thickness and platinum location. J Catal 2013. [DOI: 10.1016/j.jcat.2013.02.015] [Citation(s) in RCA: 132] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Serrano DP, Escola JM, Pizarro P. Synthesis strategies in the search for hierarchical zeolites. Chem Soc Rev 2012; 42:4004-35. [PMID: 23138888 DOI: 10.1039/c2cs35330j] [Citation(s) in RCA: 572] [Impact Index Per Article: 47.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Great interest has arisen in the past years in the development of hierarchical zeolites, having at least two levels of porosities. Hierarchical zeolites show an enhanced accessibility, leading to improved catalytic activity in reactions suffering from steric and/or diffusional limitations. Moreover, the secondary porosity offers an ideal space for the deposition of additional active phases and for functionalization with organic moieties. However, the secondary surface represents a discontinuity of the crystalline framework, with a low connectivity and a high concentration of silanols. Consequently, hierarchical zeolites exhibit a less "zeolitic behaviour" than conventional ones in terms of acidity, hydrophobic/hydrophilic character, confinement effects, shape-selectivity and hydrothermal stability. Nevertheless, this secondary surface is far from being amorphous, which provides hierarchical zeolites with a set of novel features. A wide variety of innovative strategies have been developed for generating a secondary porosity in zeolites. In the present review, the different synthetic routes leading to hierarchical zeolites have been classified into five categories: removal of framework atoms, surfactant-assisted procedures, hard-templating, zeolitization of preformed solids and organosilane-based methods. Significant advances have been achieved recently in several of these alternatives. These include desilication, due to its versatility, dual templating with polyquaternary ammonium surfactants and framework reorganization by treatment with surfactant-containing basic solutions. In the last two cases, the materials so prepared show both mesoscopic ordering and zeolitic lattice planes. Likewise, interesting results have been obtained with the incorporation of different types of organosilanes into the zeolite crystallization gels, taking advantage of their high affinity for silicate and aluminosilicate species. Crystallization of organofunctionalized species favours the formation of organic-inorganic composites that, upon calcination, are transformed into hierarchical zeolites. However, in spite of this impressive progress in novel strategies for the preparation of hierarchical zeolites, significant challenges are still ahead. The overall one is the development of methods that are versatile in terms of zeolite structures and compositions, capable of tuning the secondary porosity properties, and being scaled up in a cost-effective way. Recent works have demonstrated that it is possible to scale-up easily the synthesis of hierarchical zeolites by desilication. Economic aspects may become a significant bottleneck for the commercial application of hierarchical zeolites since most of the synthesis strategies so far developed imply the use of more expensive procedures and reagents compared to conventional zeolites. Nevertheless, the use of hierarchical zeolites as efficient catalysts for the production of high value-added compounds could greatly compensate these increased manufacturing costs.
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Affiliation(s)
- D P Serrano
- Department of Chemical and Energy Technology, ESCET, Rey Juan Carlos University, c/Tulipán s/n, 28933, Móstoles, Madrid, Spain.
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Alotaibi MA, Kozhevnikova EF, Kozhevnikov IV. Hydrogenation of methyl isobutyl ketone over bifunctional Pt–zeolite catalyst. J Catal 2012. [DOI: 10.1016/j.jcat.2012.06.013] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Mondloch JE, Bayram E, Finke RG. A review of the kinetics and mechanisms of formation of supported-nanoparticle heterogeneous catalysts. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.molcata.2011.11.011] [Citation(s) in RCA: 111] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Jentoft FC. Chapter 3 Ultraviolet–Visible–Near Infrared Spectroscopy in Catalysis. ADVANCES IN CATALYSIS 2009. [DOI: 10.1016/s0360-0564(08)00003-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Bisio C, Fajerwerg K, Krafft JM, Massiani P, Martra G. Dispersion and states of platinum ions in BEA-zeolite pores: effect of the framework basicity. RESEARCH ON CHEMICAL INTERMEDIATES 2008. [DOI: 10.1163/156856708784795635] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Noordhoek NJ, Schuring D, de Gauw FJMM, Anderson BG, de Jong AM, de Voigt MJA, van Santen RA. In Situ Study of Alkane Conversion on Pt-Loaded Acidic Zeolites. Ind Eng Chem Res 2002. [DOI: 10.1021/ie010455c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Niels J. Noordhoek
- Accelerator Laboratory, Department of Applied Physics, and Department of Inorganic Chemistry and Catalysis, Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Danny Schuring
- Accelerator Laboratory, Department of Applied Physics, and Department of Inorganic Chemistry and Catalysis, Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Frank J. M. M. de Gauw
- Accelerator Laboratory, Department of Applied Physics, and Department of Inorganic Chemistry and Catalysis, Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Bruce G. Anderson
- Accelerator Laboratory, Department of Applied Physics, and Department of Inorganic Chemistry and Catalysis, Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Arthur M. de Jong
- Accelerator Laboratory, Department of Applied Physics, and Department of Inorganic Chemistry and Catalysis, Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Martien J. A. de Voigt
- Accelerator Laboratory, Department of Applied Physics, and Department of Inorganic Chemistry and Catalysis, Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Rutger A. van Santen
- Accelerator Laboratory, Department of Applied Physics, and Department of Inorganic Chemistry and Catalysis, Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
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The Intrinsic Kinetics of n-Hexane Hydroisomerization Catalyzed by Platinum-Loaded Solid-Acid Catalysts. J Catal 2002. [DOI: 10.1006/jcat.2001.3479] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Understanding the Influence of the Pretreatment Procedure on Platinum Particle Size and Particle-Size Distribution for SiO2 Impregnated with [Pt2+(NH3)4](NO3−)2: A Combination of HRTEM, Mass Spectrometry, and Quick EXAFS. J Catal 2002. [DOI: 10.1006/jcat.2001.3433] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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de Graaf J, van Dillen A, de Jong K, Koningsberger D. Preparation of Highly Dispersed Pt Particles in Zeolite Y with a Narrow Particle Size Distribution: Characterization by Hydrogen Chemisorption, TEM, EXAFS Spectroscopy, and Particle Modeling. J Catal 2001. [DOI: 10.1006/jcat.2001.3337] [Citation(s) in RCA: 210] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Beneke M, Brabec L, Jaeger N, Nováková J, Schulz-Ekloff G. Effect of zeolitic water on the carbonylation route of platinum(II) in NaX to [Pt3(CO)6]22− Chini complexes embedded in cavities of the zeolite. ACTA ACUST UNITED AC 2000. [DOI: 10.1016/s1381-1169(99)00427-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Dehydroisomerization of n-Butane over Pt–ZSM5 (I): Effect of the Metal Loading and Acid Site Concentration. J Catal 1999. [DOI: 10.1006/jcat.1999.2554] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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