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Lu Y, Shi Y, Wang Y, Cao J, Wang J, Zheng Y, Pan J, Zhong W, Li C. A defect-enriched PdMo bimetallene for ethanol oxidation reaction and 4-nitrophenol reduction. Chem Commun (Camb) 2024; 60:3323-3326. [PMID: 38436205 DOI: 10.1039/d4cc00598h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
A defect-enriched PdMo bimetallene (d-PdMo) was prepared by a one-pot wet chemical reaction followed by post-treatment of oxidative etching. The introduction of defects can tailor the electronic structure of PdMo bimetallene and the prepared d-PdMo bimetallene exhibited excellent performance in the ethanol oxidation reaction (EOR) and 4-nitrophenol (4-NP) reduction reaction.
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Affiliation(s)
- Yi Lu
- Department of Physics, Zhejiang Sci-Tech University, Hangzhou 310018, PR China.
| | - Yiwei Shi
- Department of Physics, Zhejiang Sci-Tech University, Hangzhou 310018, PR China.
| | - Yu Wang
- Department of Physics, Zhejiang Sci-Tech University, Hangzhou 310018, PR China.
| | - Jun Cao
- Department of Physics, Zhejiang Sci-Tech University, Hangzhou 310018, PR China.
| | - Jingjing Wang
- Department of Physics, Zhejiang Sci-Tech University, Hangzhou 310018, PR China.
| | - Yingying Zheng
- Department of Physics, Zhejiang Sci-Tech University, Hangzhou 310018, PR China.
| | - Jiaqi Pan
- Department of Physics, Zhejiang Sci-Tech University, Hangzhou 310018, PR China.
| | - Wenwu Zhong
- Department of Materials, Taizhou University, Taizhou, 318000, P. R. China
| | - Chaorong Li
- Department of Physics, Zhejiang Sci-Tech University, Hangzhou 310018, PR China.
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2
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Liu J, Dong S, Gai S, Dong Y, Liu B, Zhao Z, Xie Y, Feng L, Yang P, Lin J. Design and Mechanism Insight of Monodispersed AuCuPt Alloy Nanozyme with Antitumor Activity. ACS NANO 2023; 17:20402-20423. [PMID: 37811650 DOI: 10.1021/acsnano.3c06833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
The abrogation of the self-adaptive redox evolution of tumors is promising for improving therapeutic outcomes. In this study, we designed a trimetallic alloy nanozyme AuCuPt-PpIX (ACPP), which mimics up to five naturally occurring enzymes: glucose oxidase (GOD), superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), and glutathione peroxidase (GPx). Facilitated by these enzyme-mimicking traits, the constructed ACPP nanozymes can not only disrupt the established redox homeostasis in tumors through a series of enzymatic cascade reactions but also achieve cyclic regeneration of the relevant enzyme substrates. Density functional theory (DFT) calculations have theoretically explained the synergistic effect of multimetallic doping and the possible mechanism of enzymatic catalysis. The doped Cu and Pt sites are conducive to the adsorption, activation, and dissociation of reactant molecules, whereas the Au sites are conducive to desorption, which significantly improves catalytic efficiency via a synergistic effect. Additionally, ACPP nanozymes can improve the effect of protoporphyrin (PpIX)-enabled sonodynamic therapy (SDT) by alleviating hypoxia and initiating ferroptosis by inducing lipid peroxidation (LPO) and inhibiting GPX4 activity, thus achieving multimodal synergistic therapy. This study presents a typical paradigm to enable the use of multimetallic alloy nanozymes for the treatment of tumor cells with self-adaptive properties.
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Affiliation(s)
- Jing Liu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, P. R. China
| | - Shuming Dong
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, P. R. China
| | - Shili Gai
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, P. R. China
| | - Yushan Dong
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, P. R. China
| | - Bin Liu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, P. R. China
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Zhiyu Zhao
- Department of Ultrasound, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, P. R. China
| | - Ying Xie
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, P. R. China
| | - Lili Feng
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, P. R. China
| | - Piaoping Yang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, P. R. China
| | - Jun Lin
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
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3
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Kong X, Wu H, Lu K, Zhang X, Zhu Y, Lei H. Galvanic Replacement Reaction: Enabling the Creation of Active Catalytic Structures. ACS APPLIED MATERIALS & INTERFACES 2023; 15:41205-41223. [PMID: 37638534 DOI: 10.1021/acsami.3c08922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/29/2023]
Abstract
The galvanic replacement reaction (GRR) is recognized as a redox process where one metal undergoes oxidation by the ions of another metal possessing a higher reduction potential. This reaction takes place at the interface between a substrate and a solution containing metal ions. Utilizing metal or metal oxide as sacrificial templates enables the synthesis of metallic nanoparticles, oxide-metal composites, and mixed oxides through GRR. Growing evidence showed that GRR has a direct impact on surface structures and properties. This has generated significant interest in catalysis and opened up new horizons for the application of GRR in energy and chemical transformations. This review provides a comprehensive overview of the synthetic strategies utilizing GRR for the creation of catalytically active structures. It discusses the formation of alloys, intermetallic compounds, single atom alloys, metal-oxide composites, and mixed metal oxides with diverse nanostructures. Additionally, GRR serves as a postsynthesis method to modulate metal-oxide interfaces through the replacement of oxide domains. The review also outlines potential future directions in this field.
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Affiliation(s)
- Xiao Kong
- School of Materials and Chemistry, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, P. R. China
| | - Hao Wu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, P. R. China
| | - Kun Lu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, P. R. China
| | - Xinyi Zhang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, P. R. China
| | - Yifeng Zhu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, P. R. China
| | - Hanwu Lei
- Department of Biological Systems Engineering, Washington State University, Richland, Washington 99354, United States
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4
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Feng Z, Liu Z, Bai X. Preparation of Ni@Pd Core-Shell Nanoparticles Supported on KIT-6 by Ultrasound-Assisted Galvanic Replacement for Dodecahydro- N-ethylcarbazole Dehydrogenation. Inorg Chem 2023; 62:14355-14367. [PMID: 37616599 DOI: 10.1021/acs.inorgchem.3c02013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
Using Ni as a template and reductant, Ni core-Pd shell nanoparticles (Ni@Pd NPs) supported on KIT-6 (Ni@Pd/K6) were prepared by a galvanic replacement reaction under ultrasonic radiation. The characterization results show that the Ni@Pd core-shell NPs with an average diameter of 1.9 ± 0.3 nm are uniformly dispersed on KIT-6. The d-band center position of Pd in Ni@Pd core-shell NPs can be affected by both ligand and strain effects. The relationship between the d-band center of Pd and the selectivity of intermediates is a nearly straight curve. The dehydrogenation efficiency of dodecahydro-N-ethylcarbazole on Ni@Pd(6:1)/K6 is 100% only for 3 h at 180 °C and 95.5% for 6 h at 160 °C, which is better than the reported catalysts. The outstanding catalytic dehydrogenation performance of Ni@Pd(6:1)/K6 can be attributed to the synergistic effect of the ligand and strain effect, the high dispersion of core-shell NPs, and the weak H2 binding ability of the catalyst.
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Affiliation(s)
- Zhaolu Feng
- College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Ziting Liu
- Institute of Petrochemical, Heilongjiang Academy of Sciences, Harbin 150040, China
| | - Xuefeng Bai
- College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
- School of Chemistry and Material Science, Heilongjiang University, Harbin 150080, China
- Institute of Petrochemical, Heilongjiang Academy of Sciences, Harbin 150040, China
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5
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Kar N, McCoy M, Zhan X, Wolfe J, Wang Z, Skrabalak SE. Reaction stoichiometry directs the architecture of trimetallic nanostructures produced via galvanic replacement. NANOSCALE 2023; 15:3749-3756. [PMID: 36645383 DOI: 10.1039/d2nr06632g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Galvanic replacement (GR) of monometallic nanoparticles (NPs) provides a versatile route to interesting bimetallic nanostructures, with examples such as nanoboxes, nanocages, nanoshells, nanorings, and heterodimers reported. The replacement of bimetallic templates by a more noble metal can generate trimetallic nanostructures with different architectures, where the specific structure has been shown to depend on the relative reduction potentials of the participating metals and lattice mismatch between the depositing and template metal phases. Now, the role of reaction stoichiometry is shown to direct the overall architecture of multimetallic nanostructures produced by GR with bimetallic templates. Specifically, the number of initial metal islands deposited on a NP template depends on the reaction stoichiometry. This outcome was established by studying the GR process between intermetallic PdCu (i-PdCu) NPs and either AuCl2- (Au1+) or AuCl4- (Au3+), producing i-PdCu-Au heterostructures. Significantly, multiple Au domains form in the case of GR with AuCl2- while only single Au domains form in the case of AuCl4-. These different NP architectures and their connection to reaction stoichiometry are consistent with Stranski-Krastanov (SK) growth, providing general guidelines on how the conditions of GR processes can be used to achieve multimetallic nanostructures with different defined architectures.
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Affiliation(s)
- Nabojit Kar
- Department of Chemistry, Indiana University - Bloomington, 800 E. Kirkwood Ave., Bloomington, Indiana 47405, USA.
| | - Maximilian McCoy
- Department of Chemistry, Indiana University - Bloomington, 800 E. Kirkwood Ave., Bloomington, Indiana 47405, USA.
| | - Xun Zhan
- Department of Chemistry, Indiana University - Bloomington, 800 E. Kirkwood Ave., Bloomington, Indiana 47405, USA.
| | - Joshua Wolfe
- Department of Chemistry, Indiana University - Bloomington, 800 E. Kirkwood Ave., Bloomington, Indiana 47405, USA.
| | - Zhiyu Wang
- Materials Research Laboratory, University of Illinois at Urbana-Champaign, 104 S. Goodwin Ave., Urbana, Illinois 61801, USA
| | - Sara E Skrabalak
- Department of Chemistry, Indiana University - Bloomington, 800 E. Kirkwood Ave., Bloomington, Indiana 47405, USA.
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6
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Hong Y, Venkateshalu S, Jeong S, Tomboc GM, Jo J, Park J, Lee K. Galvanic replacement reaction to prepare catalytic materials. B KOREAN CHEM SOC 2022. [DOI: 10.1002/bkcs.12638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yongju Hong
- Department of Chemistry and Research Institute for Natural Sciences Korea University Seoul Republic of Korea
| | - Sandhya Venkateshalu
- Department of Chemistry and Research Institute for Natural Sciences Korea University Seoul Republic of Korea
| | - Sangyeon Jeong
- Department of Chemistry and Research Institute for Natural Sciences Korea University Seoul Republic of Korea
| | - Gracita M. Tomboc
- Green Hydrogen Lab (GH2Lab) Institute for Hydrogen Research (IHR), Université du Québec à Trois−Rivières (UQTR) Québec Canada
| | - Jinhyoung Jo
- Department of Chemistry and Research Institute for Natural Sciences Korea University Seoul Republic of Korea
| | - Jongsik Park
- Department of Chemistry Kyonggi University Suwon Republic of Korea
| | - Kwangyeol Lee
- Department of Chemistry and Research Institute for Natural Sciences Korea University Seoul Republic of Korea
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7
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Huang J, Tan X, Li C, Wu R, Ran S, Tao Y, Mou T. Green Synthesis of Au-NPs on g-C 3N 4 Hybrid Nanomaterials Based on Supramolecular Pillar[6]arene and Its Applications for Catalysis. ACS OMEGA 2022; 7:18085-18093. [PMID: 35664603 PMCID: PMC9161382 DOI: 10.1021/acsomega.2c01603] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 05/06/2022] [Indexed: 06/14/2023]
Abstract
Gold nanoparticles (Au NPs) are installed in situ on the surfaces of graphitic carbon nitride (g-C3N4) based on supramolecular hydroxylatopillar[6]arene (P6). The Au NPs can be obtained via the redox reaction between HAuCl4 and P6 without any NH2-NH2, NaBH4, and other reductants, where AuCl4 - is reduced to Au0 by the -OH groups in the presence of OH-, and the -OH groups are oxidized into -COOH. First, P6 is loaded onto the surface of g-C3N4 via π-π interaction between P6 and g-C3N4, which offers a stabilized and reduced site for in situ anchoring of Au NPs. The hybrid nanomaterial Au-NPs@P6@g-C3N4 exhibits higher catalytic capability than the Pd/C catalyst in 4-nitrophenol (4-NP) reduction and methylene blue degradation, which opens a new avenue for designing more efficient hybrid nanomaterials for application in catalysis, sensing, and other fields.
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Affiliation(s)
- Juncao Huang
- Chongqing Preschool Education College, Chongqing 404047, P. R. China
| | - Xiaoping Tan
- Chongqing Preschool Education College, Chongqing 404047, P. R. China
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, P. R. China
| | - Chaofan Li
- Chongqing Preschool Education College, Chongqing 404047, P. R. China
| | - Rui Wu
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, P. R. China
| | - Shuqin Ran
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, P. R. China
| | - Yuxin Tao
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, P. R. China
| | - Tong Mou
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, P. R. China
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8
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Crawley JWM, Gow IE, Lawes N, Kowalec I, Kabalan L, Catlow CRA, Logsdail AJ, Taylor SH, Dummer NF, Hutchings GJ. Heterogeneous Trimetallic Nanoparticles as Catalysts. Chem Rev 2022; 122:6795-6849. [PMID: 35263103 PMCID: PMC8949769 DOI: 10.1021/acs.chemrev.1c00493] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
![]()
The development and
application of trimetallic nanoparticles continues
to accelerate rapidly as a result of advances in materials design,
synthetic control, and reaction characterization. Following the technological
successes of multicomponent materials in automotive exhausts and photovoltaics,
synergistic effects are now accessible through the careful preparation
of multielement particles, presenting exciting opportunities in the
field of catalysis. In this review, we explore the methods currently
used in the design, synthesis, analysis, and application of trimetallic
nanoparticles across both the experimental and computational realms
and provide a critical perspective on the emergent field of trimetallic
nanocatalysts. Trimetallic nanoparticles are typically supported on
high-surface-area metal oxides for catalytic applications, synthesized via preparative conditions that are comparable to those
applied for mono- and bimetallic nanoparticles. However, controlled
elemental segregation and subsequent characterization remain challenging
because of the heterogeneous nature of the systems. The multielement
composition exhibits beneficial synergy for important oxidation, dehydrogenation,
and hydrogenation reactions; in some cases, this is realized through
higher selectivity, while activity improvements are also observed.
However, challenges related to identifying and harnessing influential
characteristics for maximum productivity remain. Computation provides
support for the experimental endeavors, for example in electrocatalysis,
and a clear need is identified for the marriage of simulation, with
respect to both combinatorial element screening and optimal reaction
design, to experiment in order to maximize productivity from this
nascent field. Clear challenges remain with respect to identifying,
making, and applying trimetallic catalysts efficiently, but the foundations
are now visible, and the outlook is strong for this exciting chemical
field.
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Affiliation(s)
- James W M Crawley
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom
| | - Isla E Gow
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom
| | - Naomi Lawes
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom
| | - Igor Kowalec
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom
| | - Lara Kabalan
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom
| | - C Richard A Catlow
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom.,UK Catalysis Hub, Research Complex at Harwell, Rutherford Appleton Laboratory, Didcot OX11 OFA, U.K.,Department of Chemistry, University College London, Gordon Street, London WC1H 0AJ, U.K
| | - Andrew J Logsdail
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom
| | - Stuart H Taylor
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom
| | - Nicholas F Dummer
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom
| | - Graham J Hutchings
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom.,UK Catalysis Hub, Research Complex at Harwell, Rutherford Appleton Laboratory, Didcot OX11 OFA, U.K
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9
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Huang J, Tao Y, Ran S, Yang Y, Li C, Luo P, Chen Z, Tan X. A hydroxy-containing three dimensional covalent organic framework bearing silver nanoparticles for reduction of 4-nitrophenol and degradation of organic dyes. NEW J CHEM 2022. [DOI: 10.1039/d2nj02437c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A hydroxy-containing three dimensional covalent organic framework bearing Ag nanoparticles for catalytic reduction of 4-nitrophenol and degradation of methylene blue and Congo red.
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Affiliation(s)
- Juncao Huang
- Chongqing Preschool Education College, Chongqing 404047, P. R. China
| | - Yuxin Tao
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, P. R. China
| | - Shuqin Ran
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, P. R. China
| | - Yujiao Yang
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, P. R. China
| | - Chaofan Li
- Chongqing Preschool Education College, Chongqing 404047, P. R. China
| | - Peizhao Luo
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, P. R. China
| | - Ziao Chen
- A State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China
| | - Xiaoping Tan
- Chongqing Preschool Education College, Chongqing 404047, P. R. China
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, P. R. China
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10
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Abstract
The present review highlights the synthetic strategies and potential applications of TMNs for organic reactions, environmental remediation, and health-related activities.
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Affiliation(s)
- Shushay Hagos Gebre
- College of Natural and Computational Science, Department of Chemistry, Jigjiga University, P.O. Box, 1020, Jigjiga, Ethiopia
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11
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Facile Synthesis of PdCuRu Porous Nanoplates as Highly Efficient Electrocatalysts for Hydrogen Evolution Reaction in Alkaline Medium. METALS 2021. [DOI: 10.3390/met11091451] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Ru is a key component of electrocatalysts for hydrogen evolution reaction (HER), especially in alkaline media. However, the catalytic activity and durability of Ru-based HER electrocatalysts are still far from satisfactory. Here we report a solvothermal approach for the synthesis of PdCuRu porous nanoplates with different Ru compositions by using Pd nanoplates as the seeds. The PdCuRu porous nanoplates were formed through underpotential deposition (UPD) of Cu on Pd, followed by alloying Cu with Pd through interdiffusion and galvanic replacement between Cu atoms and Ru precursor simultaneously. When evaluated as HER electrocatalysts, the PdCuRu porous nanoplates exhibited excellent catalytic activity and durability. Of them, the Pd24Cu29Ru47/C achieved the lowest overpotential (40.7 mV) and smallest Tafel slope (37.5 mV dec−1) in an alkaline solution (much better than commercial Pt/C). In addition, the Pd24Cu29Ru47/C only lost 17% of its current density during a stability test for 10 h, while commercial Pt/C had a 59.5% drop under the same conditions. We believe that the electron coupling between three metals, unique porous structure, and strong capability of Ru for water dissociation are responsible for such an enhancement in HER performance.
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12
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Parrey S, Maseet M, Ahmad R, Khan AB. Deciphering the Kinetic Study of Sodium Dodecyl Sulfate on Ag Nanoparticle Synthesis Using Cassia siamea Flower Extract as a Reducing Agent. ACS OMEGA 2021; 6:12155-12167. [PMID: 34056369 PMCID: PMC8154150 DOI: 10.1021/acsomega.1c00847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 04/15/2021] [Indexed: 06/12/2023]
Abstract
Silver nanoparticles (Ag NPs) were synthesized using Cassia siamea flower petal extract (CSFE) as a reducing agent for the first time. In its presence and absence, the correlative effects of the anionic surface-active agent sodium dodecyl sulfate (SDS) were studied with respect to the development and texture of Ag NPs. Under different reagent compositions, the Ag NPs were inferred by localized surface plasmon resonance peaks between 419 and 455 nm. In the absence of SDS, there was a small eminence at 290 and around 350 nm, pointing toward the possibility of irregular polytope Ag NPs, which was confirmed in the transmission electron microscopy images. This elevation vanished beyond the cmc of [SDS], resulting in spherical and oval shaped Ag NPs. The effects of reagent concentrations were studied at 25 °C and around 7 and 9 pH in the absence and presence of SDS, respectively. Also, kinetic studies were performed by UV-visible spectrophotometry. Prodigious effects on shape and size were found under different synthesis conditions in terms of hexagonal, rod-, irregular-, and spherical shaped Ag NPs. Furthermore, the antimycotic activity of the synthesized Ag NPs was established on different Candida strains, and best results were found pertaining Candida tropicalis. The ensuing study impels the control of texture and dispersity for Ag NPs by CSFE and SDS, and the resultant polytope Ag NPs could be a future solution for drug-resistant pathogenic fungi.
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Affiliation(s)
| | - Mohsin Maseet
- Department
of Biosciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Rabia Ahmad
- Department
of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| | - Abbul Bashar Khan
- Department
of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
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13
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Wang Q, Tang H, Wang M, Guo L, Chen S, Wei Z. Precisely tuning the electronic structure of a structurally ordered PtCoFe alloy via a dual-component promoter strategy for oxygen reduction. Chem Commun (Camb) 2021; 57:4047-4050. [PMID: 33885558 DOI: 10.1039/d1cc00608h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Optimizing the electronic structure of Pt-based alloys has emerged as an effective strategy to further improve their catalytic oxygen reduction reaction (ORR) performance, yet this remains challenging. Here, we have successfully tuned the electronic structure of ordered PtCoFe nanoparticles by incorporating the third component (Fe) into a bimetallic ordered PtCo alloy and manipulating its content. With the merits of the optimum electronic structure and the favorable composition, as well as the robust ordered structure, the as-prepared ordered PtCoFe-1-0.6 alloy (1 and 0.6 represent the feeding molar ratio of Co to Pt and Fe to Pt, respectively) exhibits enhanced catalytic performance for ORR. The L10-PtCoFe-1-0.6 alloy delivers higher specific activity (2.23 mA cm-2) than bimetallic L10-PtCo-1 (1.34 mA cm-2) and the commercial Pt/C (0.23 mA cm-2) catalyst. Indeed, this dual-catalytic-component promoter strategy gives a significant insight into developing high-performance homogeneous catalysts.
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Affiliation(s)
- Qingmei Wang
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China.
| | - Hao Tang
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China.
| | - Meng Wang
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China.
| | - Lin Guo
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Siguo Chen
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China.
| | - Zidong Wei
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China.
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14
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Liu J, Li J, Jian P, Jian R. Intriguing hierarchical Co@NC microflowers in situ assembled by nanoneedles: Towards enhanced reduction of nitroaromatic compounds via interfacial synergistic catalysis. JOURNAL OF HAZARDOUS MATERIALS 2021; 403:123987. [PMID: 33265026 DOI: 10.1016/j.jhazmat.2020.123987] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 08/25/2020] [Accepted: 09/12/2020] [Indexed: 06/12/2023]
Abstract
Developing highly efficient and cost-effective catalyst with tuned microstructure holds great promise in the reduction of nitroaromatic compounds under mild reaction conditions. Herein, we report a new Co@NC-MF catalyst with a fascinating hierarchical flower-like architecture in situ assembled from uniform Co@NC nanoneedles, which can function as a favorable platform for the efficient reduction of nitroaromatic compounds in the presence of NaBH4. In addition with the structural advantage, the characterization and experimental results demonstrate the enormous advantage of interfacial synergistic catalysis in enhancing the catalytic performance. The outside electron-rich N-doped carbon layer as Lewis basic sites and the inside Co nanoparticles are responsible for the adsorption of 4-nitrophenol (4-NP) and generation of active hydrogen species, respectively. This work contributes to the construction of well-integrated composites with well-balanced interface synergy to boost the catalytic performance in various heterogeneous reactions.
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Affiliation(s)
- Jiangyong Liu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China.
| | - Jinxing Li
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
| | - Panming Jian
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
| | - Ruiqi Jian
- School of Medicine, Stanford University, Stanford, CA 94304, USA
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15
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Wang N, Zhao W, Zhang M, Cao P, Sun S, Ma H, Lin M. Bismuth-induced synthesis of Au-X (X = Pt, Pd) nanoalloys for electrocatalytic reactions. Chem Commun (Camb) 2021; 57:391-394. [PMID: 33326514 DOI: 10.1039/d0cc06745h] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Bismuth was introduced as an intermediate to produce Au-X (X = Pt and Pd) bimetallic nanoalloys using the galvanic replacement reaction. The results showed that the Au-X nanoalloys have good activity for electrocatalytic reactions in alkaline media. This strategy can provide an option for the formation of multimetal nanoalloys with similar electrochemical potentials and compositions.
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Affiliation(s)
- Nan Wang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
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16
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Jeong S, Liu Y, Zhong Y, Zhan X, Li Y, Wang Y, Cha PM, Chen J, Ye X. Heterometallic Seed-Mediated Growth of Monodisperse Colloidal Copper Nanorods with Widely Tunable Plasmonic Resonances. NANO LETTERS 2020; 20:7263-7271. [PMID: 32866022 DOI: 10.1021/acs.nanolett.0c02648] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We report a heterometallic seed-mediated synthesis method for monodisperse penta-twinned Cu nanorods using Au nanocrystals as seeds. Elemental analyses indicate that resultant nanorods consist predominantly of copper with a gold content typically below 3 atom %. The nanorod aspect ratio can be readily adjusted from 2.8 to 13.1 by varying the molar ratio between Au seeds and Cu precursor, resulting in narrow longitudinal plasmon resonances tunable from 762 to 2201 nm. Studies of reaction intermediates reveal that symmetry-breaking is promoted by rapid nanoscale diffusion in Au-Cu alloys and the formation of a gold-rich surface. The growth pathway features coevolving shape and composition whereby nanocrystals become progressively enriched with Cu concomitant with nanorod growth. The availability of uniform colloidal Cu nanorods with widely tunable aspect ratios opens new avenues toward the synthesis of derivative one-dimensional metal nanostructures, and applications in surface-enhanced spectroscopy, bioimaging, and electrocatalysis, among others.
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Affiliation(s)
- Soojin Jeong
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Yang Liu
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Yaxu Zhong
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Xun Zhan
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Yuda Li
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Yi Wang
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Phoebe M Cha
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Jun Chen
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Xingchen Ye
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
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17
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Neal RD, Hughes RA, Sapkota P, Ptasinska S, Neretina S. Effect of Nanoparticle Ligands on 4-Nitrophenol Reduction: Reaction Rate, Induction Time, and Ligand Desorption. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02759] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Robert D. Neal
- College of Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Robert A. Hughes
- College of Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Pitambar Sapkota
- Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, Unites States
- Notre Dame Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Sylwia Ptasinska
- Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, Unites States
- Notre Dame Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Svetlana Neretina
- College of Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department of Chemistry & Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, Unites States
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18
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Li Y, Wang Y, Bai L, Lv H, Huang W, Liu S, Ding S, Zhao M. Ultrasensitive electrochemiluminescent immunosensing based on trimetallic Au–Pd–Pt/MoS2 nanosheet as coreaction accelerator and self-enhanced ABEI-centric complex. Anal Chim Acta 2020; 1125:86-93. [DOI: 10.1016/j.aca.2020.05.055] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 05/17/2020] [Accepted: 05/21/2020] [Indexed: 12/18/2022]
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19
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Liu J, Li J, Ye R, Yan X, Wang L, Jian P. Versatile bifunctional nitrogen-doped porous carbon derived from biomass in catalytic reduction of 4-nitrophenol and oxidation of styrene. CHINESE JOURNAL OF CATALYSIS 2020. [DOI: 10.1016/s1872-2067(20)63534-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Veeralingam S, Badhulika S. X (metal: Al, Cu, Sn, Ti)-functionalized tunable 2D-MoS 2 nanostructure assembled biosensor arrays for qualitative and quantitative analysis of vital neurological drugs. NANOSCALE 2020; 12:15336-15347. [PMID: 32648865 DOI: 10.1039/d0nr03427d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this work we report for the first time surface functionalization of 2D MoS2 with X (metals: Al, Cu, Sn, Ti) to develop a low-cost, ultra-selective biosensor array based Electronic Tongue (E-Tongue) for the detection of 4 vital neurological drugs in human saliva. The hydrothermally grown surface functionalized X-MoS2 was integrated onto a single 1 × 1 cm aluminium foil and contacts were defined using Cr electrodes. Detailed characterization revealed the formation of 2-H MoS2 and metal-X (Al, Cu, Sn, Ti)-functionalized MoS2 nanoflower like morphology decorated with nanoflake, nanorod, nanocube and nanostick structures, respectively. The response of the sensor array was recorded for aspirin, nicotine, caffeine and tramadol. Principal Component Analysis (PCA) was performed to reduce the dimension of numerous response data sets from all sensors and predict the likely possible response from various neurological drugs towards each sensor. Pattern-recognition analysis confirmed a definite pattern in response to respective functionalization and could efficiently differentiate neurological drugs from one another. Real-time analysis was performed using saliva samples for monitoring the therapeutic neurological drug concentration in the human body. Furthermore, the biosensor array was exposed to respective neurological drugs to study their sensitivity, selectivity, stability, reproducibility and adhesion onto the device. The strategy outlined can be used to develop lab-on-a-chip devices for the real-time detection of numerous bioanalytes in body fluids.
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Affiliation(s)
- Sushmitha Veeralingam
- Department of Electrical Engineering, Indian Institute of Technology Hyderabad, Hyderabad, 502285, India.
| | - Sushmee Badhulika
- Department of Electrical Engineering, Indian Institute of Technology Hyderabad, Hyderabad, 502285, India.
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21
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Zhao S, Zhao Z, Yao K, Liu H. Density functional study of Pd Cu Au (a + b + c = 7) clusters: Geometry, electronic and H2 physisorption properties. COMPUT THEOR CHEM 2020. [DOI: 10.1016/j.comptc.2020.112783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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22
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Manivannan S, An S, Jeong J, Viji M, Kim K. Hematite/M (M = Au, Pd) Catalysts Derived from a Double-Hollow Prussian Blue Microstructure: Simultaneous Catalytic Reduction of o- and p-Nitrophenols. ACS APPLIED MATERIALS & INTERFACES 2020; 12:17557-17570. [PMID: 32207290 DOI: 10.1021/acsami.0c01704] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Present study deals with hematite/M (M = Au, Pd) catalysts converted from a double-hollow Prussian blue microstructure (DHPM). The unique Prussian blue (PB) microstructure (MS) is prepared by a template-free solvothermal synthetic route in a single-step reaction. An amine-functionalized silicate sol-gel matrix (SSG) has served as the structure-directing agent cum stabilizer for making DHPM. Synthesized DHPM is having a unique structure: a hollow core and an in situ etched porous surface. Growth mechanism is explored and revealed by analyzing several experimental parameters such as HCl concentration, Fe source, effect of the added EtOH, silane concentration, and role of silanes' amine groups. It is identified that the superstructure consisted of well-aligned PB cubes growing radially from the core of the superstructure. Metal (Au and Pd) nanoparticles (NPs) are deposited on both interior and exterior of the PB MS through galvanic displacement reaction, and thus metal NP-loaded hematite phase iron oxide (α-Fe2O3) nanomaterials were derived by annealing them in air. Catalytic activities of the hematite/M(M = Au, Pd) MS are investigated toward simultaneous catalytic reduction of o-nitrophenol and p-nitrophenol. The resultant hematite/Pd MS showed high structural stability and catalytic active sites than the hematite/Au MS, which enhances the catalytic properties for the simultaneous catalytic reduction of both nitrophenols.
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Affiliation(s)
- Shanmugam Manivannan
- Electrochemistry Laboratory for Sensors & Energy (ELSE), Department of Chemistry, Incheon National University, Incheon 22012, Republic of Korea
| | - Seonghwi An
- Electrochemistry Laboratory for Sensors & Energy (ELSE), Department of Chemistry, Incheon National University, Incheon 22012, Republic of Korea
| | - Juwon Jeong
- Electrochemistry Laboratory for Sensors & Energy (ELSE), Department of Chemistry, Incheon National University, Incheon 22012, Republic of Korea
| | - Mayavan Viji
- College of Pharmacy and Medicinal Research Center (MRC), Chungbuk National University, Cheongju 28160, Republic of Korea
| | - Kyuwon Kim
- Electrochemistry Laboratory for Sensors & Energy (ELSE), Department of Chemistry, Incheon National University, Incheon 22012, Republic of Korea
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23
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Facile Aqueous-Phase Synthesis of Bimetallic (AgPt, AgPd, and CuPt) and Trimetallic (AgCuPt) Nanoparticles. MATERIALS 2020; 13:ma13020254. [PMID: 31935999 PMCID: PMC7013979 DOI: 10.3390/ma13020254] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 01/05/2020] [Accepted: 01/06/2020] [Indexed: 11/19/2022]
Abstract
Multi-metallic nanoparticles continue to attract attention, due to their great potential in various applications. In this paper, we report a facile aqueous-phase synthesis for multi-metallic nanoparticles, including AgPt, AgPd, CuPt, and AgCuPt, by a co-reduction method within a short reaction time of 10 min. The atomic ratio of bimetallic nanoparticles was easily controlled by varying the ratio of each precursor. In addition, we found that AgCuPt trimetallic nanoparticles had a core-shell structure with an Ag core and CuPt shell.
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24
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Xia C, He W, Gao PF, Wang JR, Cao ZM, Li YF, Wang Y, Huang CZ. Nanofabrication of hollowed-out Au@AgPt core-frames via selective carving of silver and deposition of platinum. Chem Commun (Camb) 2020; 56:2945-2948. [DOI: 10.1039/c9cc09573j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Nanofabrication of a hollowed-out Au@AgPt core-frame is presented, which is based on the selective deposition of Pt atoms on the active edges of the cubes and dissolution of Ag atoms from the {100} facets.
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Affiliation(s)
- Chang Xia
- Key Laboratory of Luminescent and Real-Time Analysis System (Southwest University) Chongqing Science and Technology Bureau
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- P. R. China
| | - Wei He
- College of Pharmaceutical Sciences
- Southwest University
- Chongqing 400715
- P. R. China
| | - Peng Fei Gao
- College of Pharmaceutical Sciences
- Southwest University
- Chongqing 400715
- P. R. China
| | - Jia Ru Wang
- Key Laboratory of Luminescent and Real-Time Analysis System (Southwest University) Chongqing Science and Technology Bureau
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- P. R. China
| | - Zheng Mao Cao
- Key Laboratory of Luminescent and Real-Time Analysis System (Southwest University) Chongqing Science and Technology Bureau
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- P. R. China
| | - Yuan Fang Li
- Key Laboratory of Luminescent and Real-Time Analysis System (Southwest University) Chongqing Science and Technology Bureau
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- P. R. China
| | - Yi Wang
- Chongqing Key Laboratory of Green Synthesis and Applications
- College of Chemistry
- Chongqing Normal University
- Chongqing 401331
- P. R. China
| | - Cheng Zhi Huang
- College of Pharmaceutical Sciences
- Southwest University
- Chongqing 400715
- P. R. China
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25
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Luo LM, Zhan W, Zhang RH, Hu QY, Guo YF, Zhou XW. Enhanced catalytic activity and stability of CoAuPd nanocatalysts by combining methods of heat treatment and dealloying. J Catal 2020. [DOI: 10.1016/j.jcat.2019.11.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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26
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Kohzadi H, Soleiman-Beigi M. A recyclable heterogeneous nanocatalyst of copper-grafted natural asphalt sulfonate (NAS@Cu): characterization, synthesis and application in the Suzuki–Miyaura coupling reaction. NEW J CHEM 2020. [DOI: 10.1039/d0nj01883j] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
NAS@Cu has synthesis simplicity given the availability of natural materials and has advantages such as being eco-friendly, high reactivity and recyclability.
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Affiliation(s)
- Homa Kohzadi
- Department of Chemistry
- Faculty of Basic Sciences
- Ilam University
- Ilam
- Iran
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27
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Larm NE, Thon JA, Vazmitsel Y, Atwood JL, Baker GA. Borohydride stabilized gold-silver bimetallic nanocatalysts for highly efficient 4-nitrophenol reduction. NANOSCALE ADVANCES 2019; 1:4665-4668. [PMID: 36133135 PMCID: PMC9418733 DOI: 10.1039/c9na00645a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 10/17/2019] [Indexed: 06/16/2023]
Abstract
Bimetallic Au x Ag1-x nanoparticles, prepared using sodium borohydride as the sole reducing and capping agent for various NaBH4 : metal molar ratios, were investigated as catalysts for 4-nitrophenol reduction. This approach yielded the highest catalytic activities observed for this model reaction to date.
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Affiliation(s)
- Nathaniel E Larm
- Department of Chemistry, University of Missouri Columbia MO 65211 USA
| | - Jason A Thon
- Department of Chemistry, University of Missouri Columbia MO 65211 USA
| | - Yahor Vazmitsel
- Department of Chemistry, University of Missouri Columbia MO 65211 USA
| | - Jerry L Atwood
- Department of Chemistry, University of Missouri Columbia MO 65211 USA
| | - Gary A Baker
- Department of Chemistry, University of Missouri Columbia MO 65211 USA
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28
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Controlled assembly of Ag nanoparticles on the surface of phosphate pillar [6]arene functionalized single-walled carbon nanotube for enhanced catalysis and sensing performance. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.06.135] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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