51
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Ultrafine copper nanoparticles anchored on reduced graphene oxide present excellent catalytic performance toward 4-nitrophenol reduction. J Colloid Interface Sci 2020; 566:265-270. [DOI: 10.1016/j.jcis.2020.01.097] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 01/19/2020] [Accepted: 01/24/2020] [Indexed: 11/22/2022]
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52
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Abstract
Human immunodeficiency virus (HIV), a type of lentivirus (a subgroup of retrovirus), causes acquired immunodeficiency syndrome (AIDS). This pathophysiologic state destroys the immune system allowing opportunistic infections, cancer and other life-threatening diseases to thrive. Although many analytic tools including enzyme-linked immunoassay (ELISA), indirect and line immunoassay, Western blotting, radio-immunoprecipitation, nucleic acid amplification testing (NAAT) have been developed to detect HIV, recent developments in nanosensor technology have prompted its use as a novel diagnostic approach. Nanosensors provide analytical information about behavior and characteristics of particles by using biochemical reactions mediated by enzymes, immune components, cells and tissues. These reactions are transformed into decipherable signals, i.e., electrical, thermal, optical, using nano to micro scale technology. Nanosensors are capable of both quantitative and qualitative detection of HIV, are highly specific and sensitive and provide rapid reproducible results. Nanosensor technology can trace infant infection during mother-to-child transmission, the latent HIV pool and monitor anti-HIV therapy. In this chapter, we review nanosensor analytics including electrochemical, optical, piezoelectric, SERS-based lateral flow assay, microfluidic channel-based biosensors in the detection of HIV. Other techniques in combination with different biorecognition elements (aptamers, antibodies, oligonucleotides) are also discussed.
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Affiliation(s)
- Sarthak Nandi
- DBT-National Institute of Animal Biotechnology (DBT-NIAB), Hyderabad, Telangana, India
| | - Ayusi Mondal
- DBT-National Institute of Animal Biotechnology (DBT-NIAB), Hyderabad, Telangana, India
| | - Akanksha Roberts
- DBT-National Institute of Animal Biotechnology (DBT-NIAB), Hyderabad, Telangana, India
| | - Sonu Gandhi
- DBT-National Institute of Animal Biotechnology (DBT-NIAB), Hyderabad, Telangana, India.
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53
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Minati L, Speranza G, Micheli V, Dalla Serra M, Clamer M. Graphene oxide nanocomposite magnetic microbeads for the remediation of positively charged aromatic compounds. Dalton Trans 2020; 49:3333-3340. [PMID: 32101190 DOI: 10.1039/c9dt04605d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Integrating graphene as an inorganic nanostructure within a hydrogel matrix enables the creation of a unique hybrid composite combining the peculiar chemical and physical properties of graphene with the high porosity and stability of hydrogels as for example agarose gel. As a consequence, the resulting material forms a double-network system providing advantages deriving from both the components. In this study, we present the synthesis of novel magnetic porous agarose-based graphene oxide microbeads for the adsorption and separation of positively charged aromatic molecules. The hydrogel-based graphene oxide beads revealed an ultrafast adsorption kinetics for positively charged aromatic dyes. We tested this material for the purification of fluorescent-tagged biomolecules. In addition, reduced graphene oxide microbeads were decorated with palladium nanoparticles, showing a high catalytic activity towards the reduction of dyes by sodium borohydride. Our results show that magnetic agarose based graphene microbeads with enhanced physical-chemical properties can be used for several biochemical applications.
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Affiliation(s)
- L Minati
- Immagina Biotechnology s.r.l., Via Sommarive 18, Trento, Italy.
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54
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Chen L, Xu X, Yang W, Jia J. Recent advances in carbon-based electrocatalysts for oxygen reduction reaction. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.08.008] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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55
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Kawawaki T, Negishi Y. Gold Nanoclusters as Electrocatalysts for Energy Conversion. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E238. [PMID: 32013164 PMCID: PMC7075145 DOI: 10.3390/nano10020238] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 01/23/2020] [Accepted: 01/27/2020] [Indexed: 12/13/2022]
Abstract
Gold nanoclusters (Aun NCs) exhibit a size-specific electronic structure unlike bulk gold and can therefore be used as catalysts in various reactions. Ligand-protected Aun NCs can be synthesized with atomic precision, and the geometric structures of many Aun NCs have been determined by single-crystal X-ray diffraction analysis. In addition, Aun NCs can be doped with various types of elements. Clarification of the effects of changes to the chemical composition, geometric structure, and associated electronic state on catalytic activity would enable a deep understanding of the active sites and mechanisms in catalytic reactions as well as key factors for high activation. Furthermore, it may be possible to synthesize Aun NCs with properties that surpass those of conventional catalysts using the obtained design guidelines. With these expectations, catalyst research using Aun NCs as a model catalyst has been actively conducted in recent years. This review focuses on the application of Aun NCs as an electrocatalyst and outlines recent research progress.
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Affiliation(s)
- Tokuhisa Kawawaki
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1–3 Kagurazaka, Shinjuku-ku, Tokyo 162–8601, Japan;
- Photocatalysis International Research Center, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278−8510, Japan
| | - Yuichi Negishi
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1–3 Kagurazaka, Shinjuku-ku, Tokyo 162–8601, Japan;
- Photocatalysis International Research Center, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278−8510, Japan
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56
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Kawawaki T, Negishi Y, Kawasaki H. Photo/electrocatalysis and photosensitization using metal nanoclusters for green energy and medical applications. NANOSCALE ADVANCES 2020; 2:17-36. [PMID: 36133985 PMCID: PMC9417545 DOI: 10.1039/c9na00583h] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Accepted: 10/17/2019] [Indexed: 05/06/2023]
Abstract
Owing to the rapidly increasing demand for sustainable technologies in fields such as energy, environmental science, and medicine, nanomaterial-based photo/electrocatalysis has received increasing attention. Recently, synthetic innovations have allowed the fabrication of atomically precise metal nanoclusters (NCs). These NCs show potential for green energy and medical applications. The present article primarily focuses on evaluation of the recent developments in the photo/electrocatalytic and photosensitizing characteristics of metal and alloy NCs. The review comprises two sections: (i) photo/electrocatalysis for green energy and (ii) photosensitization for biomedical therapy applications. Finally, the challenges associated with the use of metal NCs are presented on the basis of current developments.
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Affiliation(s)
- Tokuhisa Kawawaki
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science 1-3 Kagurazaka, Shinjuku-ku Tokyo 162-8601 Japan
| | - Yuichi Negishi
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science 1-3 Kagurazaka, Shinjuku-ku Tokyo 162-8601 Japan
| | - Hideya Kawasaki
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University Suita-shi Osaka 564-8680 Japan
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57
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Yin B, Zhao E, Hua X, Wang K, Wang W, Li G, Liu T. Ultrafine PdAg nanoparticles immobilized on nitrogen-doped carbon/cerium oxide for superior dehydrogenation of formic acid. NEW J CHEM 2020. [DOI: 10.1039/c9nj05661k] [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
Ultrafine PdAg NPs with the size of 2.5 nm are successfully immobilized on cerium oxide/nitrogen-doped carbon.
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Affiliation(s)
- Bing Yin
- School of civil engineering
- Qingdao University of Technology
- Qingdao 266033
- China
| | - Erfa Zhao
- School of civil engineering
- Qingdao University of Technology
- Qingdao 266033
- China
| | - Xianle Hua
- School of civil engineering
- Qingdao University of Technology
- Qingdao 266033
- China
| | - Kai Wang
- College of Materials Science and Engineering
- Qingdao University of Science and Technology
- 266000 Qingdao
- China
| | - Wenqi Wang
- College of Materials Science and Engineering
- Qingdao University of Science and Technology
- 266000 Qingdao
- China
| | - Guicun Li
- College of Materials Science and Engineering
- Qingdao University of Science and Technology
- 266000 Qingdao
- China
| | - Tong Liu
- College of Materials Science and Engineering
- Qingdao University of Science and Technology
- 266000 Qingdao
- China
- Jiangsu Yijin Environmental Protection Technology Co., Ltd
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58
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Abstract
Graphene, the reincarnation of a surface, offers new opportunities in catalytic applications, not only because of its peculiar electronic structure, but also because of the ease of modulating it. A vast number of proposals have been made to support this point, but there has been a lack of a systematic understanding of the different roles of graphene, as many other reviews published have focused on the synthesis and characterization of the various graphene-based catalysts. In this review, we surveyed the vast literature related to various theoretical proposals and experimental realizations of graphene-based catalysts to first classify and then elucidate the different roles played by graphene in solid-state heterogeneous catalysis. Owing to its one-atom thickness and zero bandgap with low density of states around Fermi level, graphene has great potential in catalysis applications. In general, graphene can function as a support for catalysts, a cover to protect catalysts, or the catalytic center itself. Understanding these functions is important in the design of catalysts in terms of how to optimize the electronic structure of the active sites for particular applications, a few case studies of which will be presented for each role.
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59
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Jadoon T, Carter-Fenk K, Siddique MBA, Herbert JM, Hussain R, Iqbal S, Iqbal J, Ayub K. Silver clusters tune up electronic properties of graphene nanoflakes: A comprehensive theoretical study. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.111902] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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60
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Wang X, Song S, Zhang H. A redox interaction-engaged strategy for multicomponent nanomaterials. Chem Soc Rev 2020; 49:736-764. [DOI: 10.1039/c9cs00379g] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The review article focuses on the redox interaction-engaged strategy that offers a powerful way to construct multicomponent nanomaterials with precisely-controlled size, shape, composition and hybridization of nanostructures.
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Affiliation(s)
- Xiao Wang
- School of Chemical and Biological Engineering
- Seoul National University
- Seoul
- Republic of Korea
| | - Shuyan Song
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Hongjie Zhang
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
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61
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Yang H, Zhu M, Guo X, Yan C, Lin S. Anchoring MnCo 2O 4 Nanorods from Bimetal-Organic Framework on rGO for High-Performance Oxygen Evolution and Reduction Reaction. ACS OMEGA 2019; 4:22325-22331. [PMID: 31909315 PMCID: PMC6941181 DOI: 10.1021/acsomega.9b02362] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 12/04/2019] [Indexed: 06/01/2023]
Abstract
Oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) are important reactions of energy storage and conversion devices. Therefore, it is highly desirable to design efficient and dual electrocatalysts for replacing the traditional noble-metal-based catalysts. Herein, we have developed a high-efficiency and low-cost MnCo2O4-rGO nanocomposite derived from bimetal-organic frameworks. For OER, MnCo2O4-rGO showed an onset potential of 1.56 V (vs reversible hydrogen electrode (RHE)) and a current density of 14.16 mA/cm2 at 1.83 V, being better than both pure MnCo2O4 and Pt/C. For ORR, MnCo2O4-rGO exhibited a half-wave potential (E 1/2) of 0.77 V (vs RHE), a current density of 3.33 mA/cm2 at 0.36 V, a high electron transfer number n (3.80), and long-term stability, being close to the performance of Pt/C. The high activity of MnCo2O4-rGO was attributed to the synergistic effect among rGO, manganese, and cobalt oxide. As a result, the resultant MnCo2O4-rGO has a great potential to be applied as a high-efficiency ORR and OER electrocatalyst.
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Affiliation(s)
- Hongxun Yang
- School
of Environmental & Chemical Engineering, Marine Equipment and Technology
Institute, and School of Material Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu, China
- Zhenjiang
Borun New Materials, Co. Ltd., Zhenjiang 212050, Jiangsu, China
| | - Miaomiao Zhu
- School
of Environmental & Chemical Engineering, Marine Equipment and Technology
Institute, and School of Material Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu, China
| | - Xingmei Guo
- School
of Environmental & Chemical Engineering, Marine Equipment and Technology
Institute, and School of Material Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu, China
| | - Chao Yan
- School
of Environmental & Chemical Engineering, Marine Equipment and Technology
Institute, and School of Material Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu, China
| | - Shengling Lin
- School
of Environmental & Chemical Engineering, Marine Equipment and Technology
Institute, and School of Material Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu, China
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62
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Sreenivasa Kumar G, Ramamanohar Reddy N, Sravani B, Subramanyam Sarma L, Veera Reddy T, Madhavi V, Adinarayana Reddy S. Ultra-Range Bimetallic Pt–Pd Nanospheres Deposited on Reduced Graphene Sheet as Efficient Electrocatalyst Towards Electrooxidation of Methanol. J CLUST SCI 2019. [DOI: 10.1007/s10876-019-01752-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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63
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Liu R, Cao K, Clark AH, Lu P, Anjass M, Biskupek J, Kaiser U, Zhang G, Streb C. Top-down synthesis of polyoxometalate-like sub-nanometer molybdenum-oxo clusters as high-performance electrocatalysts. Chem Sci 2019; 11:1043-1051. [PMID: 34084360 PMCID: PMC8146420 DOI: 10.1039/c9sc05469c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 12/04/2019] [Indexed: 12/13/2022] Open
Abstract
The top-down fabrication of catalytically active molecular metal oxide anions, or polyoxometalates, is virtually unexplored, although these materials offer unique possibilities, for catalysis, energy conversion and storage. Here, we report a novel top-down route, which enables the scalable synthesis and deposition of sub-nanometer molybdenum-oxo clusters on electrically conductive mesoporous carbon. The new approach uses a unique redox-cycling process to convert crystalline MoIVO2 particles into sub-nanometer molecular molybdenum-oxo clusters with a nuclearity of ∼1-20. The resulting molybdenum-oxo cluster/carbon composite shows outstanding, stable electrocatalytic performance for the oxygen reduction reaction with catalyst characteristics comparable to those of commercial Pt/C. This new material design could give access to a new class of highly reactive polyoxometalate-like metal oxo clusters as high-performance, earth abundant (electro-)catalysts.
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Affiliation(s)
- Rongji Liu
- Institute of Inorganic Chemistry I, Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences 100190 Beijing China
| | - Kecheng Cao
- Central Facility of Electron Microscopy for Materials Science, Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Adam H Clark
- Paul Scherrer Institut Forschungsstrasse 111 Villigen CH-5232 Switzerland
| | - Peilong Lu
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences 100190 Beijing China
- University of Chinese Academy of Sciences 100049 Beijing China
| | - Montaha Anjass
- Institute of Inorganic Chemistry I, Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
- Helmholtz-Institute Ulm, Electrochemical Energy Storage Helmholtzstr. 11 89081 Ulm Germany
| | - Johannes Biskupek
- Central Facility of Electron Microscopy for Materials Science, Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Ute Kaiser
- Central Facility of Electron Microscopy for Materials Science, Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
- Helmholtz-Institute Ulm, Electrochemical Energy Storage Helmholtzstr. 11 89081 Ulm Germany
| | - Guangjin Zhang
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences 100190 Beijing China
| | - Carsten Streb
- Institute of Inorganic Chemistry I, Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
- Helmholtz-Institute Ulm, Electrochemical Energy Storage Helmholtzstr. 11 89081 Ulm Germany
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64
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Laser-synthesized graphite carbon encased gold nanoparticles with specific reaction channels for efficient oxygen reduction. J Colloid Interface Sci 2019; 563:74-80. [PMID: 31865050 DOI: 10.1016/j.jcis.2019.11.113] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 11/25/2019] [Accepted: 11/28/2019] [Indexed: 11/22/2022]
Abstract
Developing novel electrocatalysts with desirable activity and stability is always full of challenge in electrochemical energy conversion. Here, specific carbon shell encapsulated Au (Au@C) nanoparticles are prepared by a laser ablation in liquids method and used as the oxygen reduction reaction (ORR) electrocatalysts. Such Au@C nanoparticles exhibit excellent catalytic activity toward ORR with an onset potential of 0.98 V and a half-wave potential of 0.87 V, better than that of commercial Pt/C. More importantly, the Au@C catalyst exhibits unrivalled stability for 3000 CV cycles for ORR in 0.1 M KOH, dramatically superior to Pt/C and pure Au catalysts. The density functional theory (DFT) calculations and SCN- ions to poison metal-based active sites are conducted to Au@C catalyst, and the results indicate that the structural defects of carbon shells supply an access for the reactants to contact the core Au nanoparticles, causing the catalytic reaction, meanwhile the carbon shells prevent the degeneration of core Au nanoparticles in the harsh electrolytes enhancing the durability of Au effectively.
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65
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Chai OJH, Liu Z, Chen T, Xie J. Engineering ultrasmall metal nanoclusters for photocatalytic and electrocatalytic applications. NANOSCALE 2019; 11:20437-20448. [PMID: 31657426 DOI: 10.1039/c9nr07272a] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In view of many of the fundamental properties of ultrasmall noble metal nanoclusters progressively being uncovered, it has become increasingly clear that this class of materials has enormous potential for photocatalytic and electrocatalytic applications due to their unique electronic and optical properties. In this Minireview, we highlight the key electronic and optical properties of metal nanoclusters which are essential to photocatalysis and electrocatalysis. We further use these properties as the basis for our discussion to map out directions or principles for the rational design of high performance photocatalysts and electrocatalysts, highlighting several successful attempts along this direction.
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Affiliation(s)
- Osburg Jin Huang Chai
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore.
| | - Zhihe Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore. and Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, P. R. China
| | - Tiankai Chen
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore.
| | - Jianping Xie
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore. and Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, P. R. China
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66
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Underpotential Deposition of Copper Clusters on Sulfur and Nitrogen Co‐Doped Graphite Foam for the Oxygen Reduction Reaction. ChemElectroChem 2019. [DOI: 10.1002/celc.201901546] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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67
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Shan J, Lei Z, Wu W, Tan Y, Cheng N, Sun X. Highly Active and Durable Ultrasmall Pd Nanocatalyst Encapsulated in Ultrathin Silica Layers by Selective Deposition for Formic Acid Oxidation. ACS APPLIED MATERIALS & INTERFACES 2019; 11:43130-43137. [PMID: 31652044 DOI: 10.1021/acsami.9b13451] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The low performance of palladium (Pd) is a considerable challenge for direct formic acid fuel cells in practical applications. Herein, we develop a simple strategy to synthesize a highly active and durable Pd nanocatalyst encapsulated in ultrathin silica layers with vertically aligned nanochannels covered graphene oxides (Pd/rGO@pSiO2) without blocking active sites by selective deposition. The Pd/rGO@pSiO2 catalyst exhibits very high performance for a formic acid oxidation (FAO) reaction compared with the Pd/rGO without protective silica layers and commercial Pd/C catalysts. Pd/rGO@pSiO2 shows an FAO activity 3.9 and 3.8 times better than those of Pd/rGO and Pd/C catalysts, respectively. The Pd/rGO@pSiO2 catalysts are also almost 6-fold more stable than Pd/C and more than 3-fold more stable than Pd/rGO. The outstanding performance of our encapsulated Pd catalysts can be ascribed to the novel design of nanostructures by selective deposition fabricating ultrasmall Pd nanoparticles encapsulated in ultrathin silica layers with vertically aligned nanochannels, which not only avoid blocking the active sites but also facilitate the mass transfer in encapsulated catalysts. Our work indicates an important method to the rational design of high-performance catalysts for fuel cells in practical applications.
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Affiliation(s)
| | | | | | | | | | - Xueliang Sun
- Department of Mechanical and Materials Engineering , The University of Western Ontario , London , Ontario N6A 5B9 , Canada
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68
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Purohit G, Rawat DS, Reiser O. Palladium Nanocatalysts Encapsulated on Porous Silica @ Magnetic Carbon‐Coated Cobalt Nanoparticles for Sustainable Hydrogenation of Nitroarenes, Alkenes and Alkynes. ChemCatChem 2019. [DOI: 10.1002/cctc.201901371] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Gunjan Purohit
- Department of ChemistryUniversity of Delhi Delhi- 110007 India
- Institute for Organic ChemistryUniversity of Regensburg Regensburg 93053 Germany
| | - Diwan S. Rawat
- Department of ChemistryUniversity of Delhi Delhi- 110007 India
| | - Oliver Reiser
- Institute for Organic ChemistryUniversity of Regensburg Regensburg 93053 Germany
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69
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Li SH, Wang R, Tang ZR, Xu YJ. Efficient visible-light-driven water remediation by 3D graphene aerogel-supported nitrogen-doped carbon quantum dots. Catal Today 2019. [DOI: 10.1016/j.cattod.2018.10.060] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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70
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Wang Y, Guo L, Qi P, Liu X, Wei G. Synthesis of Three-Dimensional Graphene-Based Hybrid Materials for Water Purification: A Review. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1123. [PMID: 31382648 PMCID: PMC6722807 DOI: 10.3390/nano9081123] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 07/30/2019] [Accepted: 07/30/2019] [Indexed: 12/26/2022]
Abstract
Graphene-based nanostructures and nanomaterials have been widely used for the applications in materials science, biomedicine, tissue engineering, sensors, energy, catalysis, and environmental science due to their unique physical, chemical, and electronic properties. Compared to two-dimensional (2D) graphene materials, three-dimensional (3D) graphene-based hybrid materials (GBHMs) exhibited higher surface area and special porous structure, making them excellent candidates for practical applications in water purification. In this work, we present recent advances in the synthesis and water remediation applications of 3D GBHMs. More details on the synthesis strategies of GBHMs, the water treatment techniques, and the adsorption/removal of various pollutants from water systems with GBHMs are demonstrated and discussed. It is expected that this work will attract wide interests on the structural design and facile synthesis of novel 3D GBHMs, and promote the advanced applications of 3D GBHMs in energy and environmental fields.
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Affiliation(s)
- Yan Wang
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Lei Guo
- College of Life Science, Qingdao University, Qingdao 266071, China
| | - Pengfei Qi
- College of Materials and Engineering, Qingdao University, Qingdao 266071, China
| | - Xiaomin Liu
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China.
| | - Gang Wei
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China.
- Faculty of Production Engineering, University of Bremen, D-28359 Bremen, Germany.
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71
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Ventura-Espinosa D, Martín S, Mata JA. The non-innocent role of graphene in the formation/immobilization of ultra-small gold nanoparticles functionalized with N-heterocyclic carbene ligands. J Catal 2019. [DOI: 10.1016/j.jcat.2019.06.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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72
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Ismail M, Khan M, Khan MA, Akhtar K, Asiri AM, Khan SB. Plant‐supported silver nanoparticles: Efficient, economically viable and easily recoverable catalyst for the reduction of organic pollutants. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4971] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Muhammad Ismail
- Department of ChemistryKohat University of Science & Technology Kohat 26000 Khyber Pakhtunkhwa Pakistan
| | - M.I. Khan
- Department of ChemistryKohat University of Science & Technology Kohat 26000 Khyber Pakhtunkhwa Pakistan
| | - Murad Ali Khan
- Department of ChemistryKohat University of Science & Technology Kohat 26000 Khyber Pakhtunkhwa Pakistan
| | - Kalsoom Akhtar
- Department of ChemistryKing Abdulaziz University PO Box 80203 Jeddah 21589 Saudi Arabia
| | - Abdullah M. Asiri
- Department of ChemistryKing Abdulaziz University PO Box 80203 Jeddah 21589 Saudi Arabia
- Center of Excellence for Advanced Materials ResearchKing Abdulaziz University PO Box 80203 Jeddah 21589 Saudi Arabia
| | - Sher Bahadar Khan
- Department of ChemistryKing Abdulaziz University PO Box 80203 Jeddah 21589 Saudi Arabia
- Center of Excellence for Advanced Materials ResearchKing Abdulaziz University PO Box 80203 Jeddah 21589 Saudi Arabia
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73
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Nohara T, Sawada T, Tanaka H, Serizawa T. Templated Synthesis of Gold Nanoparticles on Surface-Aminated 2D Cellulose Assemblies. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20190035] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Takatoshi Nohara
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Toshiki Sawada
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
- Precursory Research for Embryonic Science and Technology, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Hiroshi Tanaka
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Takeshi Serizawa
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
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74
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Hu S, Liu X, Wang C, Camargo PHC, Wang J. Tuning Thermal Catalytic Enhancement in Doped MnO 2-Au Nano-Heterojunctions. ACS APPLIED MATERIALS & INTERFACES 2019; 11:17444-17451. [PMID: 31013046 DOI: 10.1021/acsami.9b03879] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Sodium (Na)- and potassium (K)-doped δ-MnO2, which presented different band gaps, were synthesized by a hydrothermal method. Then, uniform Au nanoparticles (NPs) were deposited on MnO2 to form metal-semiconductor nano-heterojunctions (MnO2-Au). By comparing their temperature-dependent thermal catalytic performances, p-aminothiophenol to p, p'-dimercaptoazobenzene conversion was used as proof-of-concept transformations. MnO2-Au hybrid materials demonstrated better thermal catalytic performances relative to individual Au NPs. Meanwhile, K-doped MnO2-Au, with a MnO2 support displaying a narrower bandgap, displayed superior catalytic activities relative to Na-doped MnO2-Au. To get the same catalytic performance by individual Au NPs, it can be ∼50 K less by Na-doped MnO2-Au and ∼100 K less by K-doped MnO2-Au. The enhancement is mainly attributed to the thermally excited electrons in MnO2, which were transferred to Au NPs. The additional electrons in Au NPs increase the electron density and thus contribute to the improvement of thermal catalysis. Our findings show that the establishment of a nano-heterojunction formed by metal NPs on a semiconductor support has a significant impact on thermal catalysis, where a narrower band gap can facilitate thermally excited carriers and thus bring about better catalytic performances. Thus, the results presented here shed light on the design of a nano-heterojunction catalyst to approach reactions with superior performance under moderate conditions.
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Affiliation(s)
| | | | | | - Pedro H C Camargo
- Department of Chemistry , University of Helsinki , A.I. Virtasen aukio 1 , FI-00014 Helsinki , Finland
- Departamento de Química Fundamental, Instituto de Química , Universidade de São Paulo , Av. Prof. Lineu Prestes, 748 , 05508-000 São Paulo-SP , Brazil
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75
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Sakthivel R, Annalakshmi M, Chen SM, Kubendhiran S, Anbazhagan R, Tsai HC. A novel sensitive and reliable electrochemical determination of palmatine based on CeO2/RGO/MWCNT ternary composite. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2018.11.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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76
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Liu J, Ma Q, Huang Z, Liu G, Zhang H. Recent Progress in Graphene-Based Noble-Metal Nanocomposites for Electrocatalytic Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1800696. [PMID: 30256461 DOI: 10.1002/adma.201800696] [Citation(s) in RCA: 99] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 05/22/2018] [Indexed: 06/08/2023]
Abstract
The fast industrialization process has led to global challenges in the energy crisis and environmental pollution, which might be solved with clean and renewable energy. Highly efficient electrochemical systems for clean-energy collection require high-performance electrocatalysts, including Au, Pt, Pd, Ru, etc. Graphene, a single-layer 2D carbon nanosheet, possesses many intriguing properties, and has attracted tremendous research attention. Specifically, graphene and graphene derivatives have been utilized as templates for the synthesis of various noble-metal nanocomposites, showing excellent performance in electrocatalytic-energy-conversion applications, such as the hydrogen evolution reaction and CO2 reduction. Herein, the recent progress in graphene-based noble-metal nanocomposites is summarized, focusing on their synthetic methods and electrocatalytic applications. Furthermore, some personal insights on the challenges and possible future work in this research field are proposed.
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Affiliation(s)
- Jiawei Liu
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Qinglang Ma
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Zhiqi Huang
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Guigao Liu
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Hua Zhang
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
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77
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Chen G, Guo C, Cheng Y, Lu H, Cui J, Hu W, Jiang R, Jiang N. High Density Static Charges Governed Surface Activation for Long-Range Motion and Subsequent Growth of Au Nanocrystals. NANOMATERIALS 2019; 9:nano9030328. [PMID: 30823673 PMCID: PMC6473974 DOI: 10.3390/nano9030328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 02/15/2019] [Accepted: 02/17/2019] [Indexed: 12/01/2022]
Abstract
How a heavily charged metal nanocrystal, and further a dual-nanocrystals system behavior with continuous electron charging? This refers to the electric dynamics in charged particles as well as the crystal growth for real metal particles, but it is still opening in experimental observations and interpretations. To this end, we performed an in-situ electron-beam irradiation study using transmission electron microscopy (TEM) on the Au nanocrystals that freely stand on the nitride boron nanotube (BNNT). Au nanocrystalline particles with sizes of 2–4 nm were prepared by a well-controlled sputtering method to stand on the BNNT surface without chemical bonding interactions. Au nanoparticles presented the surface atomic disorder, diffusion phenomena with continuous electron-beam irradiation, and further, the long-range motion that contains mainly the three stages: charging, activation, and adjacence, which are followed by final crystal growth. Firstly, the growth process undergoes the lattice diffusion and subsequently the surface-dominated diffusion mechanism. These abnormal phenomena and observations, which are fundamentally distinct from classic cases and previous reports, are mainly due to the overcharging of Au nanoparticle that produces a surface activation state in terms of high-energy plasma. This work therefore brings about new observations for both a single and dual-nanocrystals system, as well as new insights in understanding the resulting dynamics behaviors.
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Affiliation(s)
- Guoxin Chen
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19A Yuquan Rd., Shijingshan District, Beijing 100049, China.
| | - Changjin Guo
- School of Materials Science and Engineering, Yunnan University, Kunming 650091, China.
| | - Yao Cheng
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China.
| | - Huanming Lu
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, China.
| | - Junfeng Cui
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, China.
| | - Wanbiao Hu
- School of Materials Science and Engineering, Yunnan University, Kunming 650091, China.
| | - Rongrong Jiang
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, China.
| | - Nan Jiang
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19A Yuquan Rd., Shijingshan District, Beijing 100049, China.
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78
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Yang Y, Su X, Zhang L, Kerns P, Achola L, Hayes V, Quardokus R, Suib SL, He J. Intercalating MnO
2
Nanosheets With Transition Metal Cations to Enhance Oxygen Evolution. ChemCatChem 2019. [DOI: 10.1002/cctc.201802019] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yue Yang
- Department of Chemical Engineering Nanjing University of Science and Technology Nanjing 210094 China
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
| | - Xingsong Su
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
| | - Lei Zhang
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
| | - Peter Kerns
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
| | - Laura Achola
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
| | - Veronica Hayes
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
| | - Rebecca Quardokus
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
| | - Steven L. Suib
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
- Institute of Materials Science University of Connecticut Storrs CT 06269 USA
- Department of Chemical & Biomolecular Engineering University of Connecticut Storrs CT 06269 USA
| | - Jie He
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
- Institute of Materials Science University of Connecticut Storrs CT 06269 USA
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79
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Amino acid-assisted preparation of reduced graphene oxide-supported PtCo bimetallic nanospheres for electrocatalytic oxidation of methanol. J APPL ELECTROCHEM 2019. [DOI: 10.1007/s10800-019-01297-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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80
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Lokteva ES, Golubina EV. Metal-support interactions in the design of heterogeneous catalysts for redox processes. PURE APPL CHEM 2019. [DOI: 10.1515/pac-2018-0715] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The effect of the metal-support interaction (MSI) has been discussed for several types of catalytic systems comprising metal nanoparticles (Ni, Pd, Au, Fe) on oxide and carbon supports, showing promising catalytic properties in hydrogenation of unsaturated C–C bonds, hydrodechlorination (HDC) of chlorinated organic molecules and CO total oxidation. The MSI of a different strength, from the redistribution of the electron density of nanoparticles (NPs) to the chemical interactions, is determined by the composition of the support and the active site, the method of active metal deposition, calcination temperature, particle size etc. The types of MSI considered in this review include: (1) the interaction of the active metal (Me) NPs with alumina and modified zirconia to form several oxidation states of Me in the composition of surface or bulk chemical compounds with a support; (2) the influence of oxide (alumina, silica) or carbon (highly oriented pyrolytic graphite, Sibunit) supports on the formation of active sites in the catalysts with ultra-low Me loading prepared by deposition of pre-formed metal NPs produced by laser electrodispersion (LED) or as colloidal dispersion; (3) the anchoring of Me NPs on the surface of carbon supports (nanodiamonds and carbon nanotubes) directly with a support surface, e.g. through surface defects, or through surface functional groups; (4) ‘reverse’ MSI in the Me@C composites, consisting of metal NPs, covered with the defected graphene layers or immersed into carbon matrix. It is demonstrated on the example of LED systems, that oxidation of metal under MSI is less significant in carbon-supported systems than in oxide-supported ones, but charge effects can play a noticeable role for both types of supports. Different ways of MSI tuning provide the possibilities to achieve the optimal Men+/Me0 ratio in the catalysts for HDC of mono- and polychlorinated organic molecules, including persistent organic pollutants. One of these ways is tuning the composition of functional groups on the surface of nanodiamonds and carbon nanotubes by additional treatments to achieve the desirable metal anchoring, the optimal metal NPs size and the improved catalytic properties. Unusual type of MSI is represented by the activation of thin graphene shell of Me@C composites by the presence of defects in the shell and a transition metal (Ni, Fe) in subsurface layer. This effect allows H2 activation that is a significant step in many industrially important reactions. The selectivity and activity of such systems can be intentionally changed by varying the nature of metal and reaction temperature. Significant attention has been given in the review to the novel catalytic systems described in the previous works of the authors.
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Affiliation(s)
| | - Elena V. Golubina
- Lomonosov Moscow State University , Department of Chemistry , Moscow , Russia
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81
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Alam MK, Rahman MM, Rahman MM, Kim D, Asiri AM, Khan FA. In-situ synthesis of gold nanocrystals anchored graphene oxide and its application in biosensor and chemical sensor. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.01.023] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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82
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Zhao Y, Liu L, Shi D, Shi X, Shen M. Performing a catalysis reaction on filter paper: development of a metal palladium nanoparticle-based catalyst. NANOSCALE ADVANCES 2019; 1:342-346. [PMID: 36132454 PMCID: PMC9473204 DOI: 10.1039/c8na00095f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Accepted: 09/09/2018] [Indexed: 06/11/2023]
Abstract
We report the polyethylenimine (PEI)-mediated immobilization of palladium nanoparticles (Pd NPs) onto filter paper for catalytic applications. In this work, filter paper was first assembled with PEI via electrostatic interaction, and the PEI-assembled filter paper was then complexed with PdCl4 2- ions, followed by sodium borohydride reduction to generate Pd NP-immobilized filter paper. Transmission electron microscopy reveals that Pd NPs have a diameter of 3 nm and are capable of being immobilized onto the filter paper. The Pd NP-immobilized filter paper exhibits remarkable catalytic activity and is reusable in the reductive transformation of Cr(vi) to Cr(iii) and 4-nitrophenol to 4-aminophenol. The strategy used to develop Pd NP-immobilized filter paper could be adopted to generate other metal NP-immobilized filter papers for other applications such as sensing materials, energy, environmental remediation, and biomedical sciences.
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Affiliation(s)
- Yili Zhao
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University Shanghai 201620 People's Republic of China
- Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, College of Materials and Textiles, Zhejiang Sci-Tech University Hangzhou 310018 People's Republic of China
- State Key Laboratory of Molecular Engineering of Polymers, Fudan University Shanghai 200433 People's Republic of China
| | - Lei Liu
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University Shanghai 201620 People's Republic of China
| | - Daniel Shi
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University Shanghai 201620 People's Republic of China
| | - Xiangyang Shi
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University Shanghai 201620 People's Republic of China
| | - Mingwu Shen
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University Shanghai 201620 People's Republic of China
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83
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Zhao X, Ranaweera R, Luo L. Highly efficient hydrogen evolution of platinum via tuning the interfacial dissolved-gas concentration. Chem Commun (Camb) 2019; 55:1378-1381. [DOI: 10.1039/c8cc08803a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We present a facile perfluorooctanesulfonate-modulation strategy with a precisely controlled dissolved-gas concentration at the electrode/gas/electrolyte interface for enhanced HER.
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Affiliation(s)
- Xu Zhao
- Department of Chemistry
- Wayne State University
- Detroit
- Michigan 48202
- USA
| | | | - Long Luo
- Department of Chemistry
- Wayne State University
- Detroit
- Michigan 48202
- USA
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84
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Hong CB, Zhu DJ, Ma DD, Wu XT, Zhu QL. An effective amino acid-assisted growth of ultrafine palladium nanocatalysts toward superior synergistic catalysis for hydrogen generation from formic acid. Inorg Chem Front 2019. [DOI: 10.1039/c9qi00037b] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
An amino acid-assisted approach is developed to immobilize ultrafine Pd NPs onto mesoporous carbon, which exhibits remarkable catalytic activity for hydrogen generation.
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Affiliation(s)
- Cheng-Bin Hong
- State Key Laboratory of Structure Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou 350002
- China
| | - De-Jie Zhu
- State Key Laboratory of Structure Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou 350002
- China
| | - Dong-Dong Ma
- State Key Laboratory of Structure Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou 350002
- China
| | - Xin-Tao Wu
- State Key Laboratory of Structure Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou 350002
- China
| | - Qi-Long Zhu
- State Key Laboratory of Structure Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou 350002
- China
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85
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Jiang L, Wang K, Zhang F, Zhang Y, Wang H, Liu S. Enhanced Metabolic Activity of Cytochrome P450 via Carbon Nanocage-Based Photochemical Bionanoreactor. ACS APPLIED MATERIALS & INTERFACES 2018; 10:41956-41961. [PMID: 30422622 DOI: 10.1021/acsami.8b14810] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Recently, the early screening of the genotoxicity of new chemicals and drugs calls for the envelope of micro-/nanoreactors for metabolic study. Herein, a novel light-driven enzymatic bionanoreactor is designed with the gold nanoparticle (NP)-modified carbon nanocage (Au@CNC) as a nanoreactor and meso-tetrakis(4-carboxyphenyl)porphyrin (TCPP) as a photosensitizer for cytochrome P450-mediated drug metabolism. By confining the cytochrome P450 3A4 (CYP3A4) enzyme and TCPP inside the pores of Au@CNC, a high metabolic activity is achieved by using 7-ethoxytrifluoromethyl coumarin as the substrate because of the three-dimensional hierarchical porous structure, large surface area, and fast electron transfer capacity of Au@CNC. It is noted that owing to the presence of AuNPs inside CNC, the surface hydrophilicity of CNC is much improved, which further promotes the catalytic activity of the CYP3A4 enzyme. To our knowledge, this is the first attempt to apply CNC as a bionanoreactor for NADPH-free and light-driven in vitro drug metabolism. In addition, the presented bionanoreactor exhibits a variety of advantages in terms of fast response, short assay time (10 min), high sensitivity, and good selectivity, which are expected to expedite drug screening and render potential advances in drug discovery and development.
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Affiliation(s)
- Ling Jiang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering , Southeast University , Nanjing 210096 , PR China
| | - Kan Wang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering , Southeast University , Nanjing 210096 , PR China
| | - Fen Zhang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering , Southeast University , Nanjing 210096 , PR China
| | - Yuanjian Zhang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering , Southeast University , Nanjing 210096 , PR China
| | - Huaisheng Wang
- Department of Chemistry , Liaocheng University , Liaocheng , Shandong 252059 , China
| | - Songqin Liu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering , Southeast University , Nanjing 210096 , PR China
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86
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Chen X, Chen B. Facile fabrication of crumpled graphene oxide nanosheets and its Platinum nanohybrids for high efficient catalytic activity. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 243:1810-1817. [PMID: 30408868 DOI: 10.1016/j.envpol.2018.10.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 09/25/2018] [Accepted: 10/02/2018] [Indexed: 06/08/2023]
Abstract
Crumpled graphene oxide nanosheets have drawn large attentions due to its compressibility and self-avoiding stacking as flat graphene sheets trend to aggregate and restack. Up to now, most of the synthesis approaches were relied on external substrates, such as elastic substrates or ultrasonic atomizer, and the crumpled structures were obtained in a solid state directly. Here we report a facile method to produce crumpled dispersive nanosheets in solution through general base-washing treatment by taking advantage of the amphipathy of GO nanosheets. With the dissociation of oxygen-functional groups on nanosheets in alkaline environment, highly water-soluble oxidative debris (OD) would fall off from the nanosheets due to the increase of electrostatic repulsions, and resulted in the crumple of the flat sheets, while the covalent oxygen-functional groups on the nanosheets were reserved. As a result, the nanosheets remained dispersible in solution, and could be used directly for surface modifications. Pt nanoparticles could be directly deposited onto both sides of the sheets through common nucleation and growth from precursor ions process. Compared with flat graphene-based hybrid, the catalytic performance of crumpled-graphene-Pt (CG-Pt) is more excellent and attractive, and corresponding apparent kinetic rate constant (kapp) of CG-Pt toward 4-nitrophenol reduction is enhanced by 2.7-4.6-fold. This study provides a new and facile way to fabricate crumpled nanosheets and demonstrates to be easy modified for various purpose.
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Affiliation(s)
- Xiaoxiao Chen
- Department of Environmental Science, Zhejiang University, Hangzhou 310058, China; Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Baoliang Chen
- Department of Environmental Science, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou 310058, China.
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87
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Wang Q, Tsumori N, Kitta M, Xu Q. Fast Dehydrogenation of Formic Acid over Palladium Nanoparticles Immobilized in Nitrogen-Doped Hierarchically Porous Carbon. ACS Catal 2018. [DOI: 10.1021/acscatal.8b03444] [Citation(s) in RCA: 113] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Qiuju Wang
- National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, Osaka 563-8577, Japan
- Graduate School of Engineering, Kobe University, Nada Ku, Kobe, Hyogo 657-8501, Japan
| | - Nobuko Tsumori
- Toyama National College of Technology, 13, Hongo-machi, Toyama 939-8630, Japan
| | - Mitsunori Kitta
- National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, Osaka 563-8577, Japan
| | - Qiang Xu
- National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, Osaka 563-8577, Japan
- Graduate School of Engineering, Kobe University, Nada Ku, Kobe, Hyogo 657-8501, Japan
- AIST-Kyoto University Chemical Energy Materials Open Innovation Laboratory (ChEM-OIL), National Institute of Advanced Industrial Science and Technology (AIST), Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
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88
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Nair AK, Sukumaran Nair KM, Thomas S, Rouxel D, Alwarappan S, Kalarikkal N. In Situ Synthesis of Silver Nanospheres, Nanocubes, and Nanowires over Boron-Doped Graphene Sheets for Surface-Enhanced Raman Scattering Application and Enzyme-Free Detection of Hydrogen Peroxide. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:13603-13614. [PMID: 30350693 DOI: 10.1021/acs.langmuir.8b02005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
An effective in situ synthesis strategy is demonstrated for the preparation of silver nanostructures (nanospheres (NSs), nanocubes (NCs), and nanowires (NWs)) on the surface of boron-doped graphene (BG). Further, these functional nanomaterials are employed for the surface-enhanced Raman scattering (SERS) and non-enzymatic electrochemical detection of H2O2. The results confirm the superior performance of BG-Ag nanostructures as SERS platform. Among various geometries of silver nanoparticles studied in this work, we find that the AgNCs over BG (BG-AgNC) present outstanding SERS performance for detecting 4-mercaptobenzoic acid, with a limit of detection of 1.0 × 10-13 M. Furthermore, BG-AgNC exhibits excellent capability to detect melamine as low as 1.0 × 10-9 M. Electrochemical results confirm that the BG-AgNW-based platform exhibits a superior biosensing performance toward H2O2 detection. The enhanced performance is due to the presence of graphene, which improves the conductivity and provides more active sites. The synthesis of doped graphene with metallic nanoparticles described in this work is expected to be a key strategy for the development of an efficient SERS and electrochemical sensor that offers simplicity, cost-effectiveness, long-term stability, and better reproducibility.
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Affiliation(s)
- Anju K Nair
- International and Inter University Centre for Nanoscience and Nanotechnology , Mahatma Gandhi University , Kottayam - 686 560 , Kerala , India
- Department of Physics , St Teresas's College Ernakulam - 682011 , Kerala , India
| | | | - Sabu Thomas
- International and Inter University Centre for Nanoscience and Nanotechnology , Mahatma Gandhi University , Kottayam - 686 560 , Kerala , India
- School of Chemical Sciences , Mahatma Gandhi University , Kottayam - 686 560 , Kerala , India
| | - Didier Rouxel
- UMR CNRS 7198, Facult́e des Sciences et Techniques , Institut Jean Lamour , Campus Victor Grignard , BP 70239, 54506 , Vandoeuvre-les-Nancy Cedex , France
| | - Subbiah Alwarappan
- CSIR - Central Electrochemical Research Institute (CSIR-CECRI) Karaikudi - 630 003 , Tamil Nadu , India
| | - Nandakumar Kalarikkal
- International and Inter University Centre for Nanoscience and Nanotechnology , Mahatma Gandhi University , Kottayam - 686 560 , Kerala , India
- School of Pure and Applied Physics , Mahatma Gandhi University , Kottayam - 686 560 , Kerala India
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89
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Chen Z, Wang W, Zhang Y, Liang Y, Cui Z, Wang X. Pd Nanoparticles Confined in the Porous Graphene-like Carbon Nanosheets for Olefin Hydrogenation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:12809-12814. [PMID: 30269506 DOI: 10.1021/acs.langmuir.8b02785] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
As a novel type of defective graphene, porous graphene has been considered an excellent support material for metal clusters, as the interaction between defective carbon atoms surrounded with the metal nanoparticles (NPs) is very different from that on the ordinary supported catalyst. In this work, we reported a facile three-step method to confine the Pd NPs and grow the graphene-like carbon nanosheets (GLCs) in the same interlayer space of the layered silicate, generating embedded Pd NPs in the pores of porous GLCs in situ. The Pd@GLC nanocomposite exhibited not only high activity and stability than the common commercial Pd/C catalyst for the hydrogenation of olefins but also superior ability of resisting high temperature, which benefitted from the two-dimensional structure of layered GLCs, the confinement of Pd, and the increased edge and defect of the unsaturated carbon atoms in GLCs.
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Affiliation(s)
- Zhe Chen
- College of Environmental Science and Engineering , North China Electric Power University , Beijing 102206 , PR China
| | - Weixue Wang
- College of Environmental Science and Engineering , North China Electric Power University , Beijing 102206 , PR China
| | - Yifei Zhang
- College of Environmental Science and Engineering , North China Electric Power University , Beijing 102206 , PR China
| | - Yu Liang
- College of Environmental Science and Engineering , North China Electric Power University , Beijing 102206 , PR China
| | - Zhimin Cui
- School of Chemistry , Beihang University , Beijing 100191 , PR China
| | - Xiangke Wang
- College of Environmental Science and Engineering , North China Electric Power University , Beijing 102206 , PR China
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90
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Au-aided reduced graphene oxide-based nanohybrids for photo-chemotherapy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 95:256-263. [PMID: 30573248 DOI: 10.1016/j.msec.2018.10.072] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 09/16/2018] [Accepted: 10/20/2018] [Indexed: 11/23/2022]
Abstract
Graphene-based nanomaterials show great potential in photo-chemotherapy, but their photo-thermal effect is not very satisfactory. Herein, we presented a facile and low-cost strategy to grow Au clusters on the reduced graphene oxide (rGO) sheets aiming to improve photothermal effect. Au clusters with low-concentration was directly conjugated on the surface of rGO by electrostatic forces. To improve its biocompatibility, 3‑(3‑phenylureido) propanoic acid (PPA)-PEG (PPEG) had been introduced as biodegradable backbone to form rGO/Au/PPEG nanohybrids via π-π accumulation. The obtained rGO-based nanohybrids showed excellent biocompatibility, stability, low cytotoxicity, and enhanced photo-thermal conversion efficiency. To verify the synergistic photo-chemotherapy, doxorubicin (DOX) as a drug model had been loaded in rGO/Au/PPEG nanohybrids. The results indicated that rGO/Au/PPEG/DOX exhibited synergistic therapeutic efficacy compared with single chemotherapy or photothermal therapy, endowing this designed rGO-based nanohybrids with great potential for cancer treatments.
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91
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Chang Z, Yang Y, He J, Rusling JF. Gold nanocatalysts supported on carbon for electrocatalytic oxidation of organic molecules including guanines in DNA. Dalton Trans 2018; 47:14139-14152. [PMID: 30066010 PMCID: PMC6191342 DOI: 10.1039/c8dt01966e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Gold (Au) is chemically stable and resistant to oxidation. Although bulk Au is catalytically inert, nanostructured Au exhibits unique size-dependent catalytic activity. When Au nanocatalysts are supported on conductive carbon (denoted as Au@C), Au@C becomes promising for a wide range of electrochemical reactions such as electrooxidation of alcohols and electroreduction of carbon dioxide. In this mini-review, we summarize Au@C nanocatalysts with specific attention on the most recent achievements including the findings in our own laboratories, and show that Au nanoclusters (AuNCs, <2 nm) on nitrided carbon are excellent electrocatalysts for the oxidation of organic molecules including guanines in DNA. The state-of-the-art synthesis and characterization of these nanomaterials are also documented. Synergistic interactions among Au-containing multicomponents on carbon supports and their applications in electrocatalysis are discussed as well. Finally, challenges and future outlook for these emerging and promising nanomaterials are envisaged.
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Affiliation(s)
- Zheng Chang
- Department of Applied Chemistry of College of Science, Xi’an University of Technology, Xi’an 710054, China
- Department of Chemistry, University of Connecticut, Storrs, CT 06269, USA
| | - Yue Yang
- Department of Chemical Engineering, Nanjing University of Science and Technology, Jiangsu 210094, China
- Department of Chemistry, University of Connecticut, Storrs, CT 06269, USA
| | - Jie He
- Department of Chemistry, University of Connecticut, Storrs, CT 06269, USA
- Institute of Materials Science, University of Connecticut, Storrs, CT 06269, USA
| | - James F. Rusling
- Department of Chemistry, University of Connecticut, Storrs, CT 06269, USA
- Institute of Materials Science, University of Connecticut, Storrs, CT 06269, USA
- Department of Surgery and Neag Cancer Center, UConn Health, Farmington, CT 06032, USA
- School of Chemistry, National University of Ireland at Galway, Galway H91 TK33, Ireland
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92
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Kim Y, Jo A, Ha Y, Lee Y, Lee D, Lee Y, Lee C. Highly Dispersive Gold Nanoparticles on Carbon Black for Oxygen and Carbon Dioxide Reduction. ELECTROANAL 2018. [DOI: 10.1002/elan.201800555] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yeomin Kim
- Department of Chemistry and NanoscienceEwha Womans University Seoul 03760 South Korea
| | - Ara Jo
- Department of Chemistry and NanoscienceEwha Womans University Seoul 03760 South Korea
| | - Yejin Ha
- Department of Chemistry and NanoscienceEwha Womans University Seoul 03760 South Korea
| | - Yongjin Lee
- Department of ChemistryYonsei University Seoul 03722 South Korea
| | - Dongil Lee
- Department of ChemistryYonsei University Seoul 03722 South Korea
| | - Youngmi Lee
- Department of Chemistry and NanoscienceEwha Womans University Seoul 03760 South Korea
| | - Chongmok Lee
- Department of Chemistry and NanoscienceEwha Womans University Seoul 03760 South Korea
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93
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MOF-derived binary mixed carbon/metal oxide porous materials for constructing simultaneous determination of hydroquinone and catechol sensor. J Solid State Electrochem 2018. [DOI: 10.1007/s10008-018-4111-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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94
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Qiao Z, Shen M, Xiao Y, Zhu M, Mignani S, Majoral JP, Shi X. Organic/inorganic nanohybrids formed using electrospun polymer nanofibers as nanoreactors. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.06.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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95
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Liu Y, Liu X, Yang S, Li F, Shen C, Ma C, Huang M, Sand W. Ligand-Free Nano-Au Catalysts on Nitrogen-Doped Graphene Filter for Continuous Flow Catalysis. NANOMATERIALS 2018; 8:nano8090688. [PMID: 30189640 PMCID: PMC6165004 DOI: 10.3390/nano8090688] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 09/02/2018] [Accepted: 09/04/2018] [Indexed: 12/24/2022]
Abstract
In this study, the authors rationally designed a high-performance catalytic filter for continuous flow catalysis. The catalytic filter consisted of ligand-free nanoscale gold (nano-Au) catalysts and nitrogen-doped graphene (N-rGO). The Au catalyst was fabricated in situ onto a pre-formed N-rGO support by the NaBH₄ reduction of the Au precursor, and the size of the nano-Au was fine-tuned. A hydrothermal pretreatment of graphene oxide enriched nitrogen-containing species on the surface of two-dimensional graphene supports and enhanced the affinity of Au precursors onto the support via electrocatalytic attraction. The nano-Au catalysts acted as high-performance catalysts, and the N-rGO acted as ideal filter materials to anchor the catalysts. The catalytic activity of the as-designed catalytic filter was evaluated using 4-nitrophenol (4-NP) hydrogenation as a model catalytic reaction. The catalytic filters demonstrated superior catalytic activity and excellent stability, where a complete 4-nitrophenol conversion was readily achieved via a single pass through the catalytic filter. The as-fabricated catalytic filter outperformed the conventional batch reactors due to evidently improved mass transport. Some key operational parameters impacting the catalytic performance were identified and optimized. A similar catalytic performance was also observed for three 4-nitrophenol spiked real water samples (e.g., surface water, tap water, and industrial dyeing wastewater). The excellent catalytic activity of the nano-Au catalysts combined with the two-dimensional and mechanically stable graphene allowed for the rational design of various continuous flow catalytic membranes for potential industrial applications.
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Affiliation(s)
- Yanbiao Liu
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China.
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
| | - Xiang Liu
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Shengnan Yang
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Fang Li
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China.
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
| | - Chensi Shen
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China.
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
| | - Chunyan Ma
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Manhong Huang
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China.
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
| | - Wolfgang Sand
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China.
- Institute of Biosciences, Freiberg University of Mining and Technology, 09599 Freiberg, Germany.
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96
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Liu Z, Guo Y. Sensitive determination of trace 4-nitrophenol in water based on thio-β-cyclodextrin functionalized graphene/copper nanospheres. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.08.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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97
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Feng X, Hempenius MA, Vancso GJ. Metal Nanoparticle Foundry with Redox Responsive Hydrogels. MACROMOL CHEM PHYS 2018. [DOI: 10.1002/macp.201800223] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Xueling Feng
- Materials Science and Technology of Polymers; MESA+ Institute for Nanotechnology; University of Twente; P.O. Box 217 7500 AE Enschede The Netherlands
| | - Mark A. Hempenius
- Materials Science and Technology of Polymers; MESA+ Institute for Nanotechnology; University of Twente; P.O. Box 217 7500 AE Enschede The Netherlands
| | - Gyula J. Vancso
- Materials Science and Technology of Polymers; MESA+ Institute for Nanotechnology; University of Twente; P.O. Box 217 7500 AE Enschede The Netherlands
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98
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Li Z, Ma Z, Wen Y, Ren Y, Wei Z, Xing X, Sun H, Zhang YW, Song W. Copper Nanoflower Assembled by Sub-2 nm Rough Nanowires for Efficient Oxygen Reduction Reaction: High Stability and Poison Resistance and Density Functional Calculations. ACS APPLIED MATERIALS & INTERFACES 2018; 10:26233-26240. [PMID: 29989395 DOI: 10.1021/acsami.8b06722] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The copper nanoflowers, assembled by sub-2 nm rough nanowires with high catalytic active (200) facets, are prepared by a prompt and simple method with cetyltrimethylammonium bromide (CTAB) as a capping agent. The CTAB plays a vital role in the synthesis process, whereas the copper nanorod arrays assembled by copper nanoparticles are obtained without CTAB. The copper nanoflowers are used as catalysts in oxygen reduction reactions and exhibit excellent electrocatalytic activity, which shows nearly the same activity compared with the commercial Pt/C catalyst, attributing to the nanoflower-exposed higher catalytic active (200) facets. Furthermore, the nanoflowers can avoid methanol-poison effect and show better long-term operation stability. The density functional theory was used to calculate the atom energy of Cu(100) facets and Cu(111) facets. Both of O2 dissociation and H2O activation on the facets are very easy. However, the difference between Cu(100) facets and Cu(111) facets is the adsorption and dissociation energy of O2, and the adsorption and activation of oxygen molecule is much easier on Cu(100) facets than on Cu(111) facets because of the more open nature of (100) facets.
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Affiliation(s)
- Zhenxing Li
- State Key Laboratory of Heavy Oil Processing, Institute of New Energy , China University of Petroleum (Beijing) , Beijing 102249 , China
| | - Zhengzheng Ma
- State Key Laboratory of Heavy Oil Processing, Institute of New Energy , China University of Petroleum (Beijing) , Beijing 102249 , China
| | - Yangyang Wen
- State Key Laboratory of Heavy Oil Processing, Institute of New Energy , China University of Petroleum (Beijing) , Beijing 102249 , China
| | - Yu Ren
- State Key Laboratory of Heavy Oil Processing, Institute of New Energy , China University of Petroleum (Beijing) , Beijing 102249 , China
| | - Zhiting Wei
- State Key Laboratory of Heavy Oil Processing, Institute of New Energy , China University of Petroleum (Beijing) , Beijing 102249 , China
| | - Xiaofei Xing
- State Key Laboratory of Heavy Oil Processing, Institute of New Energy , China University of Petroleum (Beijing) , Beijing 102249 , China
| | - Hui Sun
- State Key Laboratory of Heavy Oil Processing, Institute of New Energy , China University of Petroleum (Beijing) , Beijing 102249 , China
| | - Ya-Wen Zhang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry, College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , China
| | - Weiyu Song
- State Key Laboratory of Heavy Oil Processing, Institute of New Energy , China University of Petroleum (Beijing) , Beijing 102249 , China
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99
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Bioinspired gold nanoparticles decorated reduced graphene oxide nanocomposite using Syzygium cumini seed extract: Evaluation of its biological applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 93:191-205. [PMID: 30274051 DOI: 10.1016/j.msec.2018.07.075] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2017] [Revised: 06/27/2018] [Accepted: 07/26/2018] [Indexed: 01/08/2023]
Abstract
The development of novel functionalized reduced graphene oxide nanocomposite materials keeping in mind environmental and health perspectives via green approaches is currently gaining enormous research interest in the field of nanoscience and nanotechnology. Herein, we report a bio-inspired green synthesis approach for gold nanoparticles decorated reduced graphene oxide nanocomposite in which Syzygium cumini seed extract (SCSE) is applied as natural reducing and stabilizing agent for the simultaneous reduction of chloroauric acid and graphene oxide (GO). The obtained nanocomposite was thoroughly investigated using UV-visible and FT-IR spectroscopy, XRD, SEM-EDX, TEM-SAED, Raman spectroscopy and XPS analysis. These characterization techniques clearly confirmed the successful synthesis of gold nanoparticles decorated reduced graphene oxide nanocomposite. In addition, this study evaluated the systematic and detailed analysis of AuNPs-rGO-NC and its efficacy towards cellular and antibacterial toxicological behavior. A detailed in-vitro cytotoxicity study was performed by analysing the percentage inhibition of cell viability, generation of reactive oxygen species (ROS) in cell lines using 3‑(4,5‑dimethylthiazol‑2‑yl)‑2,5‑diphenyltetrazolium bromide (MTT) assay on human colorectal (HCT116) and lung (A549) cancer cell lines. Further, antibacterial toxicological evaluation was performed by analysing diameter of inhibition Zone (DIZ), activity index (AI), minimum bactericidal concentration (MBC), minimum inhibitory concentration (MIC), growth kinetics (GrK) and death kinetics (DeK) against Gram-negative bacterial strain Escherichia coli and Gram-positive bacterial strains Staphylococcus aureus and Bacillus subtilis. The cytotoxicity and antibacterial toxicological assays revealed that the synthesized nanocomposite showed significant anti-cancer activity towards A549 cell line and Gram-negative bacterial strain Escherichia coli compared to the rest.
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100
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Chen H, Qiu Q, Sharif S, Ying S, Wang Y, Ying Y. Solution-Phase Synthesis of Platinum Nanoparticle-Decorated Metal-Organic Framework Hybrid Nanomaterials as Biomimetic Nanoenzymes for Biosensing Applications. ACS APPLIED MATERIALS & INTERFACES 2018; 10:24108-24115. [PMID: 29956534 DOI: 10.1021/acsami.8b04737] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
The synthesis of nanomaterials with specific properties and functions as biomimetic nanoenzymes has attracted extensive attention in the past decades due to their great potential to substitute natural enzymes. Herein, a facile and simple method for the preparation of platinum nanoparticle (PtNP)-decorated two-dimensional metal-organic framework (MOF) nanocomposites was developed. A ligand with heme-like structure, Fe(III) tetra(4-carboxyphenyl)porphine chloride (TCPP(Fe)), was applied to synthesize MOF nanosheets (denoted as Cu-TCPP(Fe) nanosheets) in high yield. Ultrathin Cu-TCPP(Fe) nanosheets with thickness less than 10 nm were used as a novel template for the growth of ultrasmall and uniform PtNPs. Significantly, the obtained hybrid nanomaterials (PtNPs/Cu-TCPP(Fe) hybrid nanosheets) exhibit enhanced peroxidase-like activity compared to PtNPs, Cu-TCPP(Fe) nanosheets, and the physical mixture of both due to the synergistic effect. On account of the excellent peroxidase-like activity of PtNPs/Cu-TCPP(Fe) hybrid nanosheets, we established a colorimetric method for sensitive and rapid detection of hydrogen peroxide. Furthermore, by combining with glucose oxidase, a cascade colorimetric method was established to further detect glucose with excellent sensitivity and selectivity.
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Affiliation(s)
- Huayun Chen
- School of Biosystems Engineering and Food Science , Zhejiang University , Hangzhou 310058 , P. R. China
| | - Qiming Qiu
- School of Biosystems Engineering and Food Science , Zhejiang University , Hangzhou 310058 , P. R. China
| | - Sumaira Sharif
- School of Biosystems Engineering and Food Science , Zhejiang University , Hangzhou 310058 , P. R. China
| | - Shengna Ying
- School of Biosystems Engineering and Food Science , Zhejiang University , Hangzhou 310058 , P. R. China
| | - Yixian Wang
- School of Biosystems Engineering and Food Science , Zhejiang University , Hangzhou 310058 , P. R. China
| | - Yibin Ying
- School of Biosystems Engineering and Food Science , Zhejiang University , Hangzhou 310058 , P. R. China
- Zhejiang A&F University , Hangzhou 311300 , P. R. China
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