101
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Sarkar A, Thyagarajan A, Cole A, Stefik M. Widely tunable persistent micelle templates via homopolymer swelling. SOFT MATTER 2019; 15:5193-5203. [PMID: 31204753 DOI: 10.1039/c9sm00484j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The combination of precision control with wide tunability remains a challenge for the fabrication of porous nanomaterials suitable for studies of nanostructure-behavior relationships. Polymer micelle templates broadly enable porous materials, however micelle equilibration hampers independent pore and wall size control. Persistent micelle templates (PMT) have emerged as a kinetic controlled platform that uniquely decouples the control of pore and wall dimensions. Here, chain exchange is inhibited to preserve a constant template dimension (pore size) despite the shifting equilibrium while materials are added between micelles. Early PMT demonstrations were synthesis intensive with limited 1-1.3× pore size tuning for a given polymer. Here we demonstrate PMT swelling with homopolymer enables 1-3.2× (13.3-41.9 nm) pore size variation while maintaining a monomodal distribution with up to 250 wt% homopolymer, considerably higher than the ∼90 wt% limit found for equilibrating micelles. These swollen PMTs enabled nanomaterial series with constant pore size and precision varied wall-thickness. Kinetic size control here is unexpected since the homopolymer undergoes dynamic exchange between micelles. The solvent selection influenced the time window before homopolymer phase separation, highlighting the importance of considering homopolymer-solvent interactions. This is the first PMT demonstration with wide variation of both the pore and wall dimensions using a single block polymer. Lastly this approach was extended to a 72 kg mol-1 block polymer to enable a wide 50-290 nm range of tunable macropores. Here the use of just two different block polymers and one homopolymer enabled wide ranging pore sizes spanning from 13.3-290 nm (1-22×).
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Affiliation(s)
- Amrita Sarkar
- Department of Chemistry & Biochemistry, University of South Carolina, Columbia, SC, USA.
| | - Akshay Thyagarajan
- Department of Chemistry & Biochemistry, University of South Carolina, Columbia, SC, USA.
| | - August Cole
- Department of Chemistry & Biochemistry, University of South Carolina, Columbia, SC, USA.
| | - Morgan Stefik
- Department of Chemistry & Biochemistry, University of South Carolina, Columbia, SC, USA.
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102
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Tian H, Qin J, Hou D, Li Q, Li C, Wu Z, Mai Y. General Interfacial Self‐Assembly Engineering for Patterning Two‐Dimensional Polymers with Cylindrical Mesopores on Graphene. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201903684] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Hao Tian
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal AgeingShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Jieqiong Qin
- Dalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
- University of Chinese Academy of Sciences 19 A Yuquan Road, Shijingshan District Beijing 100049 China
| | - Dan Hou
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal AgeingShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Qian Li
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal AgeingShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Chen Li
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal AgeingShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Zhong‐Shuai Wu
- Dalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Yiyong Mai
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal AgeingShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
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103
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Liu M, Zhang P, Deng L, Guo D, Tan M, Huang J, Luo Y, Cao Y, Wang Z. IR780-based light-responsive nanocomplexes combining phase transition for enhancing multimodal imaging-guided photothermal therapy. Biomater Sci 2019; 7:1132-1146. [PMID: 30648167 DOI: 10.1039/c8bm01524d] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Near-infrared (NIR) light-triggered photothermal therapy (PTT) has been widely applied for treating cancer. The combination of nanotechnology and NIR has shown great promise for promoting the efficacy of PTT. However, PTT alone could not completely ablate the tumors and easily causes tumor recurrence. To overcome this challenge, many studies have been performed to enhance PTT, including combining chemical therapy and radiotherapy, both of which have side effects on the body. To reduce the side effects and enhance PTT, a new infrared IR780-based nanocomplex combining liquid fluorocarbon perfluoropentane (PFP) has been synthesized for enhancing multimodal imaging-guided PTT. Under NIR irradiation, the size changes of PFP-loaded nanobubbles transforming into microbubbles allow ultrasound (US) imaging, showing boundaries and internal information of tumors. The breakup process and cascade reaction of phase transition can improve intratumoral permeation and retention of nanoparticles in nonmicrovascular tissue and damage the cell membranes of tumors, further enhancing PTT to kill tumor cells. The strong absorption in the NIR field of IR780-loaded NPs allows not only photoacoustic (PA) imaging but also NIR fluorescence (NIRF) imaging, which provides more anatomical information about tumors. This nanocomplex exhibits good biocompatibility and nontoxicity, strong PA/US/NIRF imaging contrast, excellent liquid-gas transition and a photothermal effect. This finding provides a new method to enhance multimodal imaging-guided cancer nanotheranostics.
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Affiliation(s)
- Mingzhu Liu
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China.
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104
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Wang Q, Zhao Y, Yang Q, Du D, Yang H, Lin Y. Amperometric sarcosine biosensor with strong anti-interference capabilities based on mesoporous organic-inorganic hybrid materials. Biosens Bioelectron 2019; 141:111431. [PMID: 31212197 DOI: 10.1016/j.bios.2019.111431] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 06/05/2019] [Accepted: 06/08/2019] [Indexed: 12/16/2022]
Abstract
Amperometric enzyme biosensors are some of the simplest and cheapest types of medical devices used in the rapid detection of biomarkers that have been developed in the past fifty years. When the concentrations of biomarkers are at micromoles per liter, such as for sarcosine, which was recently discovered as a biomarker for prostate cancer, the response signal of the interferences is huge, and the biosensor is hard to satisfy the requirements of practical applications. In this manuscript, we describe a strategy for synthesizing a surface electronegative organic-inorganic hybrid mesoporous material, which could reduce the interference signal much better than Nafion and Chitosan. We verify that the surface potential of the carrier nanomaterial plays an important role in excluding anionic interferences. We also prepare a sensitive (16.35 μA mM-1), low LOD (0.13 μM) and wide linear range (1-70 μM) amperometric sarcosine biosensor with excellent anti-interference properties. This mesoporous material provides a bio-composite platform for the development of simple amperometric biosensors for detecting micromoles per liter of analytes in serum or urine.
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Affiliation(s)
- Qia Wang
- College of Materials Science and Engineering, Shenzhen Key Laboratory of Polymer Science and Technology, Shenzhen University, Shenzhen, 518060, PR China
| | - Yuting Zhao
- College of Materials Science and Engineering, Shenzhen Key Laboratory of Polymer Science and Technology, Shenzhen University, Shenzhen, 518060, PR China
| | - Qingui Yang
- College of Materials Science and Engineering, Shenzhen Key Laboratory of Polymer Science and Technology, Shenzhen University, Shenzhen, 518060, PR China
| | - Dan Du
- School of Mechanical and Material Engineering, Washington State University, Pullman, WA, 99164, United States
| | - Haipeng Yang
- College of Materials Science and Engineering, Shenzhen Key Laboratory of Polymer Science and Technology, Shenzhen University, Shenzhen, 518060, PR China.
| | - Yuehe Lin
- School of Mechanical and Material Engineering, Washington State University, Pullman, WA, 99164, United States.
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105
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Li H, Shen H, Pei C, Chen S, Wan Y. A Self‐Assembly Process for the Immobilization of N‐Modified Au Nanoparticles in Ordered Mesoporous Carbon with Large Pores. ChemCatChem 2019. [DOI: 10.1002/cctc.201900626] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hui Li
- Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials and Department of ChemistryShanghai Normal University Shanghai 200234 P.R. China
| | - Hong Shen
- Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials and Department of ChemistryShanghai Normal University Shanghai 200234 P.R. China
| | - Chun Pei
- Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials and Department of ChemistryShanghai Normal University Shanghai 200234 P.R. China
| | - Shangjun Chen
- Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials and Department of ChemistryShanghai Normal University Shanghai 200234 P.R. China
| | - Ying Wan
- Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials and Department of ChemistryShanghai Normal University Shanghai 200234 P.R. China
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106
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Alberti S, Steinberg PY, Giménez G, Amenitsch H, Ybarra G, Azzaroni O, Angelomé PC, Soler-Illia GJAA. Chemical Stability of Mesoporous Oxide Thin Film Electrodes under Electrochemical Cycling: from Dissolution to Stabilization. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:6279-6287. [PMID: 30990724 DOI: 10.1021/acs.langmuir.9b00224] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Mesoporous oxide thin films (MOTF) present very high surface areas and highly controlled monodisperse pores in the nanometer range. These features spurred their possible applications in separation membranes and permselective electrodes. However, their performance in real applications is limited by their reactivity. Here, we perform a basic study of the stability of MOTF toward dissolution in aqueous media using a variety of characterization techniques. In particular, we focus in their stability behavior under the influence of ionic strength, adsorption of electrochemical probes, and applied electrode potential. Mesoporous silica thin films present a limited chemical stability after electrochemical cycling, particularly under high ionic strength, due to their high specific surface area and the interactions between the electrochemical probes and the surface. In contrast, TiO2 or Si0.9Zr0.1O2 matrices present higher stability; thus, they are an adequate alternative to produce accessible, sensitive, and robust permselective electrodes or membranes that perform under a wide variety of conditions.
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Affiliation(s)
- Sebastián Alberti
- Gerencia Química - Centro Atómico Constituyentes , Comisión Nacional de Energía Atómica, CONICET , Avenida General Paz 1499 , 1650 San Martín , Buenos Aires , Argentina
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA) - Universidad Nacional de La Plata - CONICET , CC 16 Suc. 4 , 1900 La Plata , Buenos Aires , Argentina
| | - Paula Y Steinberg
- Gerencia Química - Centro Atómico Constituyentes , Comisión Nacional de Energía Atómica, CONICET , Avenida General Paz 1499 , 1650 San Martín , Buenos Aires , Argentina
| | - Gustavo Giménez
- Centro de Micro y Nanoelectrónica del Bicentenario , INTI-CMNB, Instituto Nacional de Tecnología Industrial , Avenida General Paz 5445 , B1650WAB San Martín , Buenos Aires , Argentina
| | - Heinz Amenitsch
- Institute for Inorganic Chemistry , Graz University of Technology , Stremayrgasse 9/IV , 8010 Graz , Austria
| | - Gabriel Ybarra
- Unidad Técnica Nanomateriales, INTI-Procesos Superficiales , Instituto Nacional de Tecnología Industrial , Avenida General Paz 5445 , B1650WAB San Martín , Buenos Aires , Argentina
| | - Omar Azzaroni
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA) - Universidad Nacional de La Plata - CONICET , CC 16 Suc. 4 , 1900 La Plata , Buenos Aires , Argentina
| | - Paula C Angelomé
- Gerencia Química - Centro Atómico Constituyentes , Comisión Nacional de Energía Atómica, CONICET , Avenida General Paz 1499 , 1650 San Martín , Buenos Aires , Argentina
| | - Galo J A A Soler-Illia
- Instituto de Nanosistemas , UNSAM, CONICET , Avenida 25 de Mayo 1021 , 1650 San Martín , Buenos Aires , Argentina
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107
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Su X, Tao J, Chen S, Xu P, Wang D, Teng Z. Uniform hierarchical silica film with perpendicular macroporous channels and accessible ordered mesopores for biomolecule separation. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2019.01.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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108
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Wang G, Qin J, Zhao Y, Wei J. Nanoporous carbon spheres derived from metal-phenolic coordination polymers for supercapacitor and biosensor. J Colloid Interface Sci 2019; 544:241-248. [DOI: 10.1016/j.jcis.2019.03.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 02/28/2019] [Accepted: 03/01/2019] [Indexed: 12/15/2022]
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109
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Peng L, Hung CT, Wang S, Zhang X, Zhu X, Zhao Z, Wang C, Tang Y, Li W, Zhao D. Versatile Nanoemulsion Assembly Approach to Synthesize Functional Mesoporous Carbon Nanospheres with Tunable Pore Sizes and Architectures. J Am Chem Soc 2019; 141:7073-7080. [PMID: 30964289 DOI: 10.1021/jacs.9b02091] [Citation(s) in RCA: 210] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Functional mesoporous carbons have attracted significant scientific and technological interest owning to their fascinating and excellent properties. However, controlled synthesis of functional mesoporous carbons with large tunable pore sizes, small particle size, well-designed functionalities, and uniform morphology is still a great challenge. Herein, we report a versatile nanoemulsion assembly approach to prepare N-doped mesoporous carbon nanospheres with high uniformity and large tunable pore sizes (5-37 nm). We show that the organic molecules (e.g., 1,3,5-trimethylbenzene, TMB) not only play an important role in the evolution of pore sizes but also significantly affect the interfacial interaction between soft templates and carbon precursors. As a result, a well-defined Pluronic F127/TMB/dopamine nanoemulsion can be facilely obtained in the ethanol/water system, which directs the polymerization of dopamine into highly uniform polymer nanospheres and their derived N-doped carbon nanospheres with diversely novel structures such as smooth, golf ball, multichambered, and dendritic nanospheres. The resultant uniform dendritic mesoporous carbon nanospheres show an ultralarge pore size (∼37 nm), small particle size (∼128 nm), high surface area (∼635 m2 g-1), and abundant N content (∼6.8 wt %), which deliver high current density and excellent durability toward oxygen reduction reaction in alkaline solution.
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Affiliation(s)
- Liang Peng
- Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iChEM and State Key Laboratory of Molecular Engineering of Polymers , Fudan University , Shanghai 200433 , People's Republic of China
| | - Chin-Te Hung
- Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iChEM and State Key Laboratory of Molecular Engineering of Polymers , Fudan University , Shanghai 200433 , People's Republic of China
| | - Shuwen Wang
- Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iChEM and State Key Laboratory of Molecular Engineering of Polymers , Fudan University , Shanghai 200433 , People's Republic of China
| | - Xingmiao Zhang
- Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iChEM and State Key Laboratory of Molecular Engineering of Polymers , Fudan University , Shanghai 200433 , People's Republic of China
| | - Xiaohang Zhu
- Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iChEM and State Key Laboratory of Molecular Engineering of Polymers , Fudan University , Shanghai 200433 , People's Republic of China
| | - Zaiwang Zhao
- Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iChEM and State Key Laboratory of Molecular Engineering of Polymers , Fudan University , Shanghai 200433 , People's Republic of China
| | - Changyao Wang
- Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iChEM and State Key Laboratory of Molecular Engineering of Polymers , Fudan University , Shanghai 200433 , People's Republic of China
| | - Yun Tang
- Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iChEM and State Key Laboratory of Molecular Engineering of Polymers , Fudan University , Shanghai 200433 , People's Republic of China
| | - Wei Li
- Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iChEM and State Key Laboratory of Molecular Engineering of Polymers , Fudan University , Shanghai 200433 , People's Republic of China
| | - Dongyuan Zhao
- Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iChEM and State Key Laboratory of Molecular Engineering of Polymers , Fudan University , Shanghai 200433 , People's Republic of China
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110
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Chang Q, Yang S, Xue C, Li N, Wang Y, Li Y, Wang H, Yang J, Hu S. Nitrogen-doped carbon dots encapsulated in the mesoporous channels of SBA-15 with solid-state fluorescence and excellent stability. NANOSCALE 2019; 11:7247-7255. [PMID: 30931441 DOI: 10.1039/c9nr01224a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A simple and low-cost approach is developed, by which nitrogen-doped carbon dots (NCDs) with a negative potential are assembled inside the mesoporous channels of SBA-15 via capillary force. The unique confined microenvironment leads to a strong interaction between confined NCDs and the inner surface of SBA-15, thus effectively avoiding the aggregation of NCDs. The resultant composite (NCDs-in-SBA-15) exhibits blue fluorescence similar to the NCD aqueous solution, and shows excellent structural, thermal and photostability. Solid NCDs-in-SBA-15 still emits fluorescence even after heat treatment at 400 °C under ambient atmosphere. In addition, NCDs-in-SBA-15 possesses remarkable resistance to acid/alkali solvents. Furthermore, NCDs-in-SBA-15 shows superior selectivity and adsorption capacity to Fe3+. The facile approach and these advantageous performances could make CDs meet the requirements of fluorescent materials in the solid state and then have wider applications.
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Affiliation(s)
- Qing Chang
- North University of China, School of Energy and Power Engineering & School of Materials Science and Engineering, Xueyuan Road 3, Taiyuan 030051, China.
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111
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Controlled PEGylation of periodic mesoporous organosilica nanospheres for improving their stability in physiological solutions. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2019.02.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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112
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Guo Y, Park T, Yi JW, Henzie J, Kim J, Wang Z, Jiang B, Bando Y, Sugahara Y, Tang J, Yamauchi Y. Nanoarchitectonics for Transition-Metal-Sulfide-Based Electrocatalysts for Water Splitting. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1807134. [PMID: 30793387 DOI: 10.1002/adma.201807134] [Citation(s) in RCA: 408] [Impact Index Per Article: 81.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 12/17/2018] [Indexed: 05/20/2023]
Abstract
Heterogenous electrocatalysts based on transition metal sulfides (TMS) are being actively explored in renewable energy research because nanostructured forms support high intrinsic activities for both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Herein, it is described how researchers are working to improve the performance of TMS-based materials by manipulating their internal and external nanoarchitectures. A general introduction to the water-splitting reaction is initially provided to explain the most important parameters in accessing the catalytic performance of nanomaterials catalysts. Later, the general synthetic methods used to prepare TMS-based materials are explained in order to delve into the various strategies being used to achieve higher electrocatalytic performance in the HER. Complementary strategies can be used to increase the OER performance of TMS, resulting in bifunctional water-splitting electrocatalysts for both the HER and the OER. Finally, the current challenges and future opportunities of TMS materials in the context of water splitting are summarized. The aim herein is to provide insights gathered in the process of studying TMS, and describe valuable guidelines for engineering other kinds of nanomaterial catalysts for energy conversion and storage technologies.
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Affiliation(s)
- Yanna Guo
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
- Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo, 169-8555, Japan
| | - Teahoon Park
- Carbon Composite Department, Composites Research Division, Korea Institute of Materials Science (KIMS), 797, Changwon-daero, Seongsan-gu, Changwon-si, Gyeongsangnam-do, 51508, South Korea
| | - Jin Woo Yi
- Carbon Composite Department, Composites Research Division, Korea Institute of Materials Science (KIMS), 797, Changwon-daero, Seongsan-gu, Changwon-si, Gyeongsangnam-do, 51508, South Korea
| | - Joel Henzie
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Jeonghun Kim
- School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Zhongli Wang
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Bo Jiang
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Yoshio Bando
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Yoshiyuki Sugahara
- Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo, 169-8555, Japan
| | - Jing Tang
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Yusuke Yamauchi
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
- Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo, 169-8555, Japan
- School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD, 4072, Australia
- Department of Plant and Environmental New Resources, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do, 446-701, South Korea
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113
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Xiong H, Gao T, Li K, Liu Y, Ma Y, Liu J, Qiao Z, Song S, Dai S. A Polymer-Oriented Self-Assembly Strategy toward Mesoporous Metal Oxides with Ultrahigh Surface Areas. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1801543. [PMID: 30937257 PMCID: PMC6425444 DOI: 10.1002/advs.201801543] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 12/26/2018] [Indexed: 05/05/2023]
Abstract
Mesoporous metal oxides (MMOs) have attracted comprehensive attention in many fields, including energy storage, catalysis, and separation. Current synthesis of MMOs mainly involve use of surfactants as templates to generate mesopores and organic reagents as solvents to hinder hydrolysis and condensation of inorganic precursors, which is adverse to adjusting the interactions between surfactants and inorganic precursors. The resulting products have uncontrollable pore structure, crystallinity, and relatively lower surface areas. Here, a facile and general polymer-oriented self-assembly strategy to synthesize a series of MMOs (e.g., TiO2, ZrO2, NbO5, Al2O3, Ta2O5, HfO2, and SnO2) by using cationic polymers as porogens and metal alkoxides as metal oxide precursors in a robust aqueous synthesis system are reported. Nitrogen adsorption analysis and transmission electron microscopy confirm that the obtained MMOs have ultrahigh specific surface areas and large pore volumes (i.e., 733 m2 g-1 and 0.485 cm3 g-1 for mesoporous TiO2). Moreover, the structural parameters (surface area, pore size, and pore volume) and crystallinity can be readily controlled by tuning the interactions between cationic polymers and precursors. The as-synthesized crystalline mesoporous TiO2 exhibits promising performance in photocatalytic water splitting of hydrogen production and a high hydrogen production rate of 3.68 mol h-1 g-1.
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Affiliation(s)
- Hailong Xiong
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryJilin UniversityChangchunJilin130012China
| | - Tunan Gao
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryJilin UniversityChangchunJilin130012China
| | - Kaiqian Li
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryJilin UniversityChangchunJilin130012China
| | - Yali Liu
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryJilin UniversityChangchunJilin130012China
| | - Yali Ma
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryJilin UniversityChangchunJilin130012China
| | - Jingwei Liu
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryJilin UniversityChangchunJilin130012China
| | - Zhen‐An Qiao
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryJilin UniversityChangchunJilin130012China
| | - Shuyan Song
- Key Laboratory of Rare Earth Chemistry and PhysicsChangchun Institute of Applied ChemistryGraduate School of the Chinese Academy of SciencesChinese Academy of SciencesChangchunJilin130022China
| | - Sheng Dai
- Chemical Sciences DivisionOak Ridge National LaboratoryOak RidgeTN37831USA
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114
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Zou Y, Zhou X, Zhu Y, Cheng X, Zhao D, Deng Y. sp 2-Hybridized Carbon-Containing Block Copolymer Templated Synthesis of Mesoporous Semiconducting Metal Oxides with Excellent Gas Sensing Property. Acc Chem Res 2019; 52:714-725. [PMID: 30829473 DOI: 10.1021/acs.accounts.8b00598] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
In recent years, rational design of ordered mesoporous metal oxides, especially metal oxide semiconductors with adjustable pore architecture and framework compositions, has aroused extensive research interest owing to their unique electronic structures, long-range ordered porous framework, uniform mesopore size, and high specific surface area. Research on mesoporous materials has been booming in the past 30 years, and many synthesis methods have been developed, such as templating methods based on amphiphilic copolymers as soft templates or mesoporous carbon/silica as hard templates, respectively. Soft-templating synthesis has been considered as one of the most efficient and flexible methods in designing ordered mesoporous materials through the controllable interfacial induced coassembly process. However, most commercial amphiphilic copolymers, such as poly(ethylene oxide)- b-poly(propylene oxide) based Pluronic-type ones, suffer the drawback of poor thermal stability, because they are too easy to be decomposed even in inert atmosphere. Therefore, they are difficult to support the structures of mesoporous metal oxides under high calcination temperatures (>400 °C). To solve this challenge, we designed new amphiphilic block copolymers with high content of sp2-hybridized carbon in the hydrophobic segments that were relatively stable and could be in situ converted into residual carbon to support the mesoporous structure, via living free radical polymerization. We developed a variety of novel synthesis methods based on sp2-hybridized carbon-containing block copolymer, such as ligand-assisted assembly and resol-assisted assembly strategies, achieving a controllable and versatile synthesis of mesoporous semiconducting metal oxides with excellent gas sensing performance. In this Account, we first outline the features of sp2-hybridized carbon-containing block copolymers synthesized via living free radical polymerization, particularly their pyrolysis behavior in converting into residual carbon. Combining the solvent evaporation induced coassembly and the carbon-supported crystallization strategies, we realized the rational design of various ordered mesoporous semiconducting metal oxides (e.g., WO3, SnO2, Co3O4, In2O3, TiO2, ZnO) and the regulation of their architectural features. To overcome the fast hydrolysis rate of metal precursors and weak interaction between block copolymers and metal precursors, we developed efficient ligand-assisted (e.g., acetylacetone and acetic acid) coassembly and resol-assisted coassembly methods to retard hydrolysis behavior and enhance the interaction via hydrogen bonds, covalent bonds, electrostatic interactions, etc. We also highlight the applications of these ordered mesoporous semiconducting metal oxides of both n-type and p-type in gas sensing fields, and they show tremendous sensing performance due to their abundant active sites on electron depletion layer and rapid gas diffusion via accessible pore channels. Finally, on the basis of the classic surface-electron depletion layer model, we elucidated in depth the surface catalytic reactions between the target gas molecules and the activated species (e.g., the adsorbed oxygen species) in the surface of mesoporous metal oxides during sensing process. These newly developed soft-templating synthesis methods that rely on sp2-hybridized carbon-containing block copolymers will open a new avenue for the design and application of ordered mesoporous semiconducting metal oxides in various fields.
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Affiliation(s)
- Yidong Zou
- Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iChEM, Fudan University, Shanghai 200433, China
| | - Xinran Zhou
- Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iChEM, Fudan University, Shanghai 200433, China
| | - Yongheng Zhu
- Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iChEM, Fudan University, Shanghai 200433, China
- College of Food Science and Technology, and Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China
| | - Xiaowei Cheng
- Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iChEM, Fudan University, Shanghai 200433, China
| | - Dongyuan Zhao
- Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iChEM, Fudan University, Shanghai 200433, China
| | - Yonghui Deng
- Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iChEM, Fudan University, Shanghai 200433, China
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Gao TN, Wang T, Wu W, Liu Y, Huo Q, Qiao ZA, Dai S. Solvent-Induced Self-Assembly Strategy to Synthesize Well-Defined Hierarchically Porous Polymers. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1806254. [PMID: 30680805 DOI: 10.1002/adma.201806254] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 12/03/2018] [Indexed: 06/09/2023]
Abstract
Porous polymers with well-orchestrated nanomorphologies are useful in many fields, but high surface area, hierarchical structure, and ordered pores are difficult to be satisfied in one polymer simultaneously. Herein, a solvent-induced self-assembly strategy to synthesize hierarchical porous polymers with tunable morphology, mesoporous structure, and microporous pore wall is reported. The poly(ethylene oxide)-b-polystyrene (PEO-b-PS) diblock copolymer micelles are cross-linked via Friedel-Crafts reaction, which is a new way to anchor micelles into porous polymers with well-defined structure. Varying the polarity of the solvent has a dramatic effect upon the oleophobic/oleophylic interaction, and the self-assembly structure of PEO-b-PS can be tailored from aggregated nanoparticles to hollow spheres even mesoporous bulk. A morphological phase diagram is accomplished to systematically evaluate the influence of the composition of PEO-b-PS and the mixed solvent component on the pore structure and morphology of products. The hypercrosslinked hollow polymer spheres provide a confined microenvironment for the in situ reduction of K2 PdCl4 to ultrasmall Pd nanoparticles, which exhibit excellent catalytic performance in solvent-free catalytic oxidation of hydrocarbons and alcohols.
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Affiliation(s)
- Tu-Nan Gao
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, Jilin, 130012, China
| | - Tao Wang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, Jilin, 130012, China
| | - Wei Wu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, Jilin, 130012, China
| | - Yali Liu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, Jilin, 130012, China
| | - Qisheng Huo
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, Jilin, 130012, China
| | - Zhen-An Qiao
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, Jilin, 130012, China
| | - Sheng Dai
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
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116
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Yang M, Cheng X, Zhang X, Liu W, Huang C, Xu Y, Gao S, Zhao H, Huo L. Preparation of highly crystalline NiO meshed nanowalls via ammonia volatilization liquid deposition for H2S detection. J Colloid Interface Sci 2019; 540:39-50. [DOI: 10.1016/j.jcis.2018.12.106] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 12/16/2018] [Accepted: 12/29/2018] [Indexed: 11/29/2022]
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117
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Gómez LD, Rodríguez-Páez J. Micro/nanoscale mesoporous Nb2O5 particles: Effect of synthesis conditions and doping with N, C, or S on their properties. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.nanoso.2018.11.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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118
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Designing and Fabricating Ordered Mesoporous Metal Oxides for CO₂ Catalytic Conversion: A Review and Prospect. MATERIALS 2019; 12:ma12020276. [PMID: 30654472 PMCID: PMC6356952 DOI: 10.3390/ma12020276] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 01/07/2019] [Accepted: 01/10/2019] [Indexed: 12/20/2022]
Abstract
In the past two decades, great progress has been made in the aspects of fabrication and application of ordered mesoporous metal oxides. Ordered mesoporous metal oxides have attracted more and more attention due to their large surface areas and pore volumes, unblocked pore structure, and good thermal stabilities. Compared with non-porous metal oxides, the most prominent feature is their ability to interact with molecules not only on their outer surface but also on the large internal surfaces of the material, providing more accessible active sites for the reactants. This review carefully describes the characteristics, classification and synthesis of ordered mesoporous metal oxides in detail. Besides, it also summarizes the catalytic application of ordered mesoporous metal oxides in the field of carbon dioxide conversion and resource utilization, which provides prospective viewpoints to reduce the emission of greenhouse gas and the inhibition of global warming. Although the scope of current review is mainly limited to the ordered mesoporous metal oxides and their application in the field of CO2 catalytic conversion via heterogeneous catalysis processes, we believe that it will provide new insights and viewpoints to the further development of heterogeneous catalytic materials.
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119
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Hussain A, Guo S. NIR-triggered release of DOX from sophorolipid-coated mesoporous carbon nanoparticles with the phase-change material 1-tetradecanol to treat MCF-7/ADR cells. J Mater Chem B 2019; 7:974-985. [DOI: 10.1039/c8tb02673d] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
To prevent premature drug release from nanoparticles, it is vital to design and prepare controlled and site-specific drug release systems.
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Affiliation(s)
- Abid Hussain
- School of Pharmacy
- Shanghai Jiao Tong University
- China
| | - Shengrong Guo
- School of Pharmacy
- Shanghai Jiao Tong University
- China
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120
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Cui Y, Xu L, Chen M, Lian X, Wu CE, Yang B, Miao Z, Wang F, Hu X. Facilely fabricating mesoporous nanocrystalline Ce–Zr solid solution supported CuO-based catalysts with advanced low-temperature activity toward CO oxidation. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01612k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synergistic effect between CuO and mesoporous Ce–Zr solid solution greatly enhanced the advanced low-temperature catalytic activity toward CO oxidation.
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Affiliation(s)
- Yan Cui
- Collaborative Innovation Center of the Atmospheric Environment and Equipment Technology
- School of Environmental Science and Engineering
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control
- Nanjing University of Information Science & Technology
- Nanjing
| | - Leilei Xu
- Collaborative Innovation Center of the Atmospheric Environment and Equipment Technology
- School of Environmental Science and Engineering
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control
- Nanjing University of Information Science & Technology
- Nanjing
| | - Mindong Chen
- Collaborative Innovation Center of the Atmospheric Environment and Equipment Technology
- School of Environmental Science and Engineering
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control
- Nanjing University of Information Science & Technology
- Nanjing
| | - Xinbo Lian
- Collaborative Innovation Center of the Atmospheric Environment and Equipment Technology
- School of Environmental Science and Engineering
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control
- Nanjing University of Information Science & Technology
- Nanjing
| | - Cai-e Wu
- College of Light Industry and Food Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Bo Yang
- Collaborative Innovation Center of the Atmospheric Environment and Equipment Technology
- School of Environmental Science and Engineering
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control
- Nanjing University of Information Science & Technology
- Nanjing
| | - Zhichao Miao
- School of Chemistry and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- PR China
| | - Fagen Wang
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Xun Hu
- School of Material Science and Engineering
- University of Jinan
- Jinan
- P.R. China
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121
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Ye R, James DK, Tour JM. Laser-Induced Graphene: From Discovery to Translation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1803621. [PMID: 30368919 DOI: 10.1002/adma.201803621] [Citation(s) in RCA: 202] [Impact Index Per Article: 40.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 07/16/2018] [Indexed: 05/18/2023]
Abstract
Laser-induced graphene (LIG) is a 3D porous material prepared by direct laser writing with a CO2 laser on carbon materials in ambient atmosphere. This technique combines 3D graphene preparation and patterning into a single step without the need for wet chemical steps. Since its discovery in 2014, LIG has attracted broad research interest, with several papers being published per month using this approach. These serve to delineate the mechanism of the LIG-forming process and to showcase the translation into many application areas. Herein, the strategies that have been developed to synthesize LIG are summarized, including the control of LIG properties such as porosity, composition, and surface characteristics, and the advancement in methodology to convert diverse carbon precursors into LIG. Taking advantage of the LIG properties, the applications of LIG in broad fields, such as microfluidics, sensors, and electrocatalysts, are highlighted. Finally, future development in biodegradable and biocompatible materials is briefly discussed.
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Affiliation(s)
- Ruquan Ye
- Department of Chemistry, Rice University, 6100 Main Street, Houston, TX, 77005, USA
- Department of Chemistry, City University of Hong Kong, Hong Kong, 999077, P. R. China
| | - Dustin K James
- Department of Chemistry, Rice University, 6100 Main Street, Houston, TX, 77005, USA
| | - James M Tour
- Department of Chemistry, Rice University, 6100 Main Street, Houston, TX, 77005, USA
- Smalley-Curl Institute and the NanoCarbon Center, Department of Materials Science and NanoEngineering, Rice University, 6100 Main Street, Houston, TX, 77005, USA
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122
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Lim WG, Jo C, Cho A, Hwang J, Kim S, Han JW, Lee J. Approaching Ultrastable High-Rate Li-S Batteries through Hierarchically Porous Titanium Nitride Synthesized by Multiscale Phase Separation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1806547. [PMID: 30484914 DOI: 10.1002/adma.201806547] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Indexed: 05/17/2023]
Abstract
Porous architectures are important in determining the performance of lithium-sulfur batteries (LSBs). Among them, multiscale porous architecutures are highly desired to tackle the limitations of single-sized porous architectures, and to combine the advantages of different pore scales. Although a few carbonaceous materials with multiscale porosity are employed in LSBs, their nonpolar surface properties cause the severe dissolution of lithium polysulfides (LiPSs). In this context, multiscale porous structure design of noncarbonaceous materials is highly required, but has not been exploited in LSBs yet because of the absence of a facile method to control the multiscale porous inorganic materials. Here, a hierarchically porous titanium nitride (h-TiN) is reported as a multifunctional sulfur host, integrating the advantages of multiscale porous architectures with intrinsic surface properties of TiN to achieve high-rate and long-life LSBs. The macropores accommodate the high amount of sulfur, facilitate the electrolyte penetration and transportation of Li+ ions, while the mesopores effectively prevent the LiPS dissolution. TiN strongly adsorbs LiPS, mitigates the shuttle effect, and promotes the redox kinetics. Therefore, h-TiN/S shows a reversible capacity of 557 mA h g-1 even after 1000 cycles at 5 C rate with only 0.016% of capacity decay per cycle.
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Affiliation(s)
- Won-Gwang Lim
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, Gyeongbuk, Republic of Korea
| | - Changshin Jo
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, Gyeongbuk, Republic of Korea
| | - Ara Cho
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, Gyeongbuk, Republic of Korea
| | - Jongkook Hwang
- Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-Ro, Yuseong-Gu, Daejeon, 34141, Republic of Korea
| | - Seongseop Kim
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, Gyeongbuk, Republic of Korea
| | - Jeong Woo Han
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, Gyeongbuk, Republic of Korea
| | - Jinwoo Lee
- Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-Ro, Yuseong-Gu, Daejeon, 34141, Republic of Korea
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123
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Leng Y, Jiang Y, Peng H, Zhang Z, Liu M, Jie K, Zhang P, Dai S. Heterogeneity of polyoxometalates by confining within ordered mesopores: toward efficient oxidation of benzene to phenol. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00288j] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Polyoxometalates@ordered mesoporous polymers have been prepared by a mechanochemical coordination assembly with tannin as the renewable precursor.
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Affiliation(s)
- Yan Leng
- The Key Laboratory of Synthetic and Biological Colloids
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Yuchen Jiang
- The Key Laboratory of Synthetic and Biological Colloids
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Honggeng Peng
- Chemical Sciences Division
- Oak Ridge National Laboratory
- Knoxville
- USA
| | - Zihao Zhang
- Department of Chemistry
- University of Tennessee
- Knoxville
- USA
| | - Miaomiao Liu
- Department of Chemistry
- University of Tennessee
- Knoxville
- USA
| | - Kecheng Jie
- Department of Chemistry
- University of Tennessee
- Knoxville
- USA
| | - Pengfei Zhang
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- P. R. China
- Department of Chemistry
| | - Sheng Dai
- Department of Chemistry
- University of Tennessee
- Knoxville
- USA
- Chemical Sciences Division
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124
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Deng S, Wang Y, Zhuang G, Zhong X, Wei Z, Yao Z, Wang JG. Micromechanical simulation of the pore size effect on the structural stability of brittle porous materials with bicontinuous morphology. Phys Chem Chem Phys 2019; 21:12895-12904. [DOI: 10.1039/c9cp01582e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A part of the solid phase in bicontinuous structures sustains the deformation and larger pore sizes result in lower Young's moduli.
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Affiliation(s)
- Shengwei Deng
- Institute of Industrial Catalysis
- College of Chemical Engineering
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology
- Zhejiang University of Technology
- Hangzhou 310032
| | - Yinbin Wang
- Institute of Industrial Catalysis
- College of Chemical Engineering
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology
- Zhejiang University of Technology
- Hangzhou 310032
| | - Guilin Zhuang
- Institute of Industrial Catalysis
- College of Chemical Engineering
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology
- Zhejiang University of Technology
- Hangzhou 310032
| | - Xing Zhong
- Institute of Industrial Catalysis
- College of Chemical Engineering
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology
- Zhejiang University of Technology
- Hangzhou 310032
| | - Zhongzhe Wei
- Institute of Industrial Catalysis
- College of Chemical Engineering
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology
- Zhejiang University of Technology
- Hangzhou 310032
| | - Zihao Yao
- Institute of Industrial Catalysis
- College of Chemical Engineering
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology
- Zhejiang University of Technology
- Hangzhou 310032
| | - Jian-guo Wang
- Institute of Industrial Catalysis
- College of Chemical Engineering
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology
- Zhejiang University of Technology
- Hangzhou 310032
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125
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Lyu X, Tang Z, Xiao A, Zhang W, Pan H, Shen Z, Fan XH. Temperature-controlled formation of inverse mesophases assembled from a rod–coil block copolymer. Polym Chem 2019. [DOI: 10.1039/c9py01257e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Temperature was adjusted to control the formation of inverse mesophases which can be used as templates to prepare inorganic materials.
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Affiliation(s)
- Xiaolin Lyu
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Zhehao Tang
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Anqi Xiao
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Wei Zhang
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Hongbing Pan
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Zhihao Shen
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Xing-He Fan
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
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126
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Jiang H, Peng H, Chen G, Gu H, Chen X, Liao Y, Liu S, Xie X. Nondestructive investigation on the nanocomposite ordering upon holography using Mueller matrix ellipsometry. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2018.11.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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127
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Lee J, Seo M. Hyper-Cross-Linked Polymer with Enhanced Porosity by In Situ Removal of Trimethylsilyl Group via Electrophilic Aromatic Substitution. ACS Macro Lett 2018; 7:1448-1454. [PMID: 35651221 DOI: 10.1021/acsmacrolett.8b00752] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report the synthesis of microporous hyper-cross-linked polymers (HCPs) with increased specific surface area and porosity by the in situ removal of trimethylsilyl (TMS) groups during hyper-cross-linking. We synthesized poly(4-trimethylsilylstyrene-co-vinylbenzyl chloride-co-divinylbenzene)s (P(TMSS-co-VBzCl-co-DVB)s) with different compositions by reversible addition-fragmentation chain transfer copolymerization and converted them into HCPs by reacting with FeCl3 in 1,2-dichloroethane. The nearly quantitative removal of the TMS groups was observed during the reaction following the electrophilic aromatic substitution mechanism, where the TMS group shows higher reactivity than an aromatic hydrogen. Substantial enhancement in pore characteristics including surface area, microporosity, and mesoporosity was noticed up to a certain level of TMSS incorporation, compared with HCP derived from P(VBzCl-co-DVB). We suggest the porogenic TMS group increases porosity mainly by in situ removal via facilitated substitution reaction, which creates permanent voids in the hyper-cross-linked network. The use of TMSS provides a feasible and complementary route to tuning the pore characteristics of HCPs by varying DVB content, and is applicable to the synthesis of hierarchically porous polymers containing micropores within a mesoporous framework from block polymer precursors.
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Affiliation(s)
- Jeonghyeon Lee
- Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Myungeun Seo
- Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Department of Chemistry, KAIST, Daejeon 34141, Korea
- KAIST Institute for Nanocentury, KAIST, Daejeon 34141, Korea
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128
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Yan L, Li D, Yan T, Chen G, Shi L, An Z, Zhang D. Confining Redox Electrolytes in Functionalized Porous Carbon with Improved Energy Density for Supercapacitors. ACS APPLIED MATERIALS & INTERFACES 2018; 10:42494-42502. [PMID: 30418743 DOI: 10.1021/acsami.8b16642] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
It is a big challenge to improve the energy density of the carbon-based supercapacitors for wide applications. In this work, considering the properties of redox electrolytes, functionalized porous carbon has been synthesized with interconnected pores and oxygen functional groups, which is employed to well hold the redox electrolyte ions. As a result, the functionalized porous carbon shows a high capacitance of 454 F g-1 at a current density of 1 A g-1 and can maintain 88% of the initial capacitance after 10 000 charge-discharge cycles at 10 A g-1. Especially, the as-prepared asymmetric supercapacitor obtains high energy density of 36.9 W h kg-1 at the power density of 225 W kg-1. This new design strategy by coordinating carbon materials with the redox electrolytes will guide the development of high-energy density supercapacitors.
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Affiliation(s)
- Lijun Yan
- Department of Chemistry, College of Sciences, School of Environmental and Chemical Engineering, Research Center of Nano Science and Technology , Shanghai University , No. 99 Shangda Road , Shanghai 200444 , P. R. China
| | - Di Li
- Department of Chemistry, College of Sciences, School of Environmental and Chemical Engineering, Research Center of Nano Science and Technology , Shanghai University , No. 99 Shangda Road , Shanghai 200444 , P. R. China
| | - Tingting Yan
- Department of Chemistry, College of Sciences, School of Environmental and Chemical Engineering, Research Center of Nano Science and Technology , Shanghai University , No. 99 Shangda Road , Shanghai 200444 , P. R. China
| | - Guorong Chen
- Department of Chemistry, College of Sciences, School of Environmental and Chemical Engineering, Research Center of Nano Science and Technology , Shanghai University , No. 99 Shangda Road , Shanghai 200444 , P. R. China
| | - Liyi Shi
- Department of Chemistry, College of Sciences, School of Environmental and Chemical Engineering, Research Center of Nano Science and Technology , Shanghai University , No. 99 Shangda Road , Shanghai 200444 , P. R. China
| | - Zhongxun An
- Department of Chemistry, College of Sciences, School of Environmental and Chemical Engineering, Research Center of Nano Science and Technology , Shanghai University , No. 99 Shangda Road , Shanghai 200444 , P. R. China
- National Engineering Research Center of Ultracapacitor System for Vehicles , No. 188 Guo Shou Jing Road , Shanghai 201207 , P. R. China
| | - Dengsong Zhang
- Department of Chemistry, College of Sciences, School of Environmental and Chemical Engineering, Research Center of Nano Science and Technology , Shanghai University , No. 99 Shangda Road , Shanghai 200444 , P. R. China
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129
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Kang Y, Jiang B, Alothman ZA, Badjah AY, Naushad M, Habila M, Wabaidur S, Henzie J, Li H, Yamauchi Y. Mesoporous PtCu Alloy Nanoparticles with Tunable Compositions and Particles Sizes Using Diblock Copolymer Micelle Templates. Chemistry 2018; 25:343-348. [DOI: 10.1002/chem.201804305] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 09/18/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Yunqing Kang
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional MaterialsShanghai Normal University Shanghai 200234 P.R. China
| | - Bo Jiang
- International Center for Materials Nanoarchitectonics (WPI-MANA)National Institute for Materials Science (NIMS) 1-1 Namiki Tsukuba Ibaraki 305-0044 Japan
| | - Zeid A. Alothman
- Advanced Material Research ChairChemistry DepartmentCollege of ScienceKing Saud University, P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Ahmad Yacine Badjah
- Advanced Material Research ChairChemistry DepartmentCollege of ScienceKing Saud University, P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Mu Naushad
- Advanced Material Research ChairChemistry DepartmentCollege of ScienceKing Saud University, P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Mohamed Habila
- Advanced Material Research ChairChemistry DepartmentCollege of ScienceKing Saud University, P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Saikh Wabaidur
- Advanced Material Research ChairChemistry DepartmentCollege of ScienceKing Saud University, P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Joel Henzie
- International Center for Materials Nanoarchitectonics (WPI-MANA)National Institute for Materials Science (NIMS) 1-1 Namiki Tsukuba Ibaraki 305-0044 Japan
| | - Hexing Li
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional MaterialsShanghai Normal University Shanghai 200234 P.R. China
| | - Yusuke Yamauchi
- School of Chemical Engineering and Australian Institute for, Bioengineering and Nanotechnology (AIBN)The University of Queensland Brisbane QLD 4072 Australia
- Department of Plant & Environmental New ResourcesKyung Hee University 1732 Deogyeong-daero, Giheung-gu Yongin-si Gyeonggi-do 446-701 South Korea
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130
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Nuruzzaman M, Liu Y, Rahman MM, Naidu R, Dharmarajan R, Shon HK, Woo YC. Core-Shell Interface-Oriented Synthesis of Bowl-Structured Hollow Silica Nanospheres Using Self-Assembled ABC Triblock Copolymeric Micelles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:13584-13596. [PMID: 30352161 DOI: 10.1021/acs.langmuir.8b00792] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Hollow porous silica nanospheres (HSNs) are emerging classes of cutting-edge nanostructured materials. They have elicited much interest as carriers of active molecule delivery due to their amorphous chemical structure, nontoxic nature, and biocompatibility. Structural development with hierarchical morphology is mostly required to obtain the desired performance. In this context, large through-holes or pore openings on shells are desired so that the postsynthesis loading of active-molecule onto HSNs via a simple immersion method can be facilitated. This study reports the synthesis of HSNs with large through-holes or pore openings on shells, which are subsequently termed bowl-structured hollow porous silica nanospheres (BHSNs). The synthesis of BHSNs was mediated by the core-shell interfaces of the core-shell corona-structured micelles obtained from a commercially available ABC triblock copolymer (polystyrene- b-poly(2-vinylpyridine)- b-poly(ethylene oxide) (PS-P2VP-PEO)). In this synthesis process, polymer@SiO2 composite structure was formed because of the deposition of silica (SiO2) on the micelles' core. The P2VP block played a significant role in the hydrolysis and condensation of the silica precursor, i.e., tetraethylorthosilicate (TEOS) and then maintaining the shell's growth. The PS core of the micelles built the void spaces. Transmission electron microscopy (TEM) images revealed a spherical hollow structure with an average particle size of 41.87 ± 3.28 nm. The average diameter of void spaces was 21.71 ± 1.22 nm, and the shell thickness was 10.17 ± 1.68 nm. According to the TEM image analysis, the average large pore was determined to be 15.95 nm. Scanning electron microscopy (SEM) images further confirmed the presence of large single pores or openings in shells. These were formed as a result of the accumulated ethanol on the PS core acting to prevent the growth of silica.
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Affiliation(s)
- Md Nuruzzaman
- Global Centre for Environmental Remediation (GCER), Faculty of Science , The University of Newcastle , Callaghan , NSW 2308 , Australia
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), ATC Building , The University of Newcastle , Callaghan , NSW 2308 , Australia
| | - Yanju Liu
- Global Centre for Environmental Remediation (GCER), Faculty of Science , The University of Newcastle , Callaghan , NSW 2308 , Australia
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), ATC Building , The University of Newcastle , Callaghan , NSW 2308 , Australia
| | - Mohammad Mahmudur Rahman
- Global Centre for Environmental Remediation (GCER), Faculty of Science , The University of Newcastle , Callaghan , NSW 2308 , Australia
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), ATC Building , The University of Newcastle , Callaghan , NSW 2308 , Australia
| | - Ravi Naidu
- Global Centre for Environmental Remediation (GCER), Faculty of Science , The University of Newcastle , Callaghan , NSW 2308 , Australia
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), ATC Building , The University of Newcastle , Callaghan , NSW 2308 , Australia
| | - Rajarathnam Dharmarajan
- Global Centre for Environmental Remediation (GCER), Faculty of Science , The University of Newcastle , Callaghan , NSW 2308 , Australia
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), ATC Building , The University of Newcastle , Callaghan , NSW 2308 , Australia
| | - Ho Kyong Shon
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), ATC Building , The University of Newcastle , Callaghan , NSW 2308 , Australia
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering , University of Technology Sydney (UTS) , P.O. Box 123, 15 Broadway , Sydney , NSW 2007 , Australia
| | - Yun Chul Woo
- Department of Land, Water and Environment Research , Korea Institute of Civil Engineering and Building Technology (KICT) , 283, Goyangdae-Ro, Ilsanseo-Gu , Goyang-Si , Gyeonggi-Do 411-712 , Republic of Korea
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131
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Ren J, Yuan G, Weng C, Chen L, Yuan Z. Hierarchically Porous Heteroatoms‐doped Vesica‐like Carbons as Highly Efficient Bifunctional Electrocatalysts for Zn‐air Batteries. ChemCatChem 2018. [DOI: 10.1002/cctc.201801482] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jin‐Tao Ren
- National Institute for Advanced Materials School of Materials Science and Engineering Nankai University Tianjin 300350 P.R. China
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Nankai University Tianjin 300071 P.R. China
| | - Ge‐Ge Yuan
- National Institute for Advanced Materials School of Materials Science and Engineering Nankai University Tianjin 300350 P.R. China
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Nankai University Tianjin 300071 P.R. China
| | - Chen‐Chen Weng
- National Institute for Advanced Materials School of Materials Science and Engineering Nankai University Tianjin 300350 P.R. China
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Nankai University Tianjin 300071 P.R. China
| | - Lei Chen
- National Institute for Advanced Materials School of Materials Science and Engineering Nankai University Tianjin 300350 P.R. China
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Nankai University Tianjin 300071 P.R. China
| | - Zhong‐Yong Yuan
- National Institute for Advanced Materials School of Materials Science and Engineering Nankai University Tianjin 300350 P.R. China
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Nankai University Tianjin 300071 P.R. China
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132
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Hydrogels as Porogens for Nanoporous Inorganic Materials. Gels 2018; 4:gels4040083. [PMID: 30674859 PMCID: PMC6318640 DOI: 10.3390/gels4040083] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 10/01/2018] [Accepted: 10/09/2018] [Indexed: 11/17/2022] Open
Abstract
Organic polymer-hydrogels are known to be capable of directing the nucleation and growth of inorganic materials, such as silica, metal oxides, apatite or metal chalcogenides. This approach can be exploited in the synthesis of materials that exhibit defined nanoporosity. When the organic polymer-based hydrogel is incorporated in the inorganic product, a composite is formed from which the organic component may be selectively removed, yielding nanopores in the inorganic product. Such porogenic impact resembles the concept of using soft or hard templates for porous materials. This micro-review provides a survey of select examples from the literature.
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133
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Chen W, Cheng CA, Lee BY, Clemens DL, Huang WY, Horwitz MA, Zink JI. Facile Strategy Enabling Both High Loading and High Release Amounts of the Water-Insoluble Drug Clofazimine Using Mesoporous Silica Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2018; 10:31870-31881. [PMID: 30160469 DOI: 10.1021/acsami.8b09069] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The use of nanocarriers to deliver poorly soluble drugs to the sites of diseases is an attractive and general method, and mesoporous silica nanoparticles (MSNs) are increasingly being used as carriers. However, both loading a large amount of drugs into the pores and still being able to release the drug is a challenge. In this paper, we demonstrate a general strategy based on a companion molecule that chaperones the drug into the pores and also aids it in escaping. A common related strategy is to use a miscible co-solvent dimethyl sulfoxide (DMSO), but although loading may be efficient in DMSO, this co-solvent frequently diffuses into an aqueous environment, leaving the drug behind. We demonstrate the method by using acetophenone (AP), an FDA-approved food additive as the chaperone for clofazimine (CFZ), a water-insoluble antibiotic used to treat leprosy and multidrug-resistant tuberculosis. AP enables a high amount of CFZ cargo into the MSNs and also carries CFZ cargo out from the MSNs effectively when they are in an aqueous biorelevant environment. The amount of loading and the CFZ release efficiency from MSNs were optimized; 4.5 times more CFZ was loaded in MSNs with AP than that with DMSO and 2300 times more CFZ was released than that without the assistance of the AP. In vitro treatment of macrophages infected by Mycobacterium tuberculosis with the optimized CFZ-loaded MSNs killed the bacteria in the cells in a dose-dependent manner. These studies demonstrate a highly efficient method for loading nanoparticles with water-insoluble drug molecules and the efficacy of the nanoparticles in delivering drugs into eukaryotic cells in aqueous media.
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134
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Han P, Liu T, Ji X, Tang S. Morphology-controlled synthesis of mesoporous silica with co-template of surfactant P123 and ionic liquid [Dmim]Cl. CHINESE CHEM LETT 2018. [DOI: 10.1016/j.cclet.2017.10.042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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135
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Liu X, Bai X, Li J, Wang C, Ren Q. Synthesis and characterization of amphiphilic graft copolymers with poly(ethylene glycol) as the hydrophilic backbone and poly(butyl methacrylate) as the hydrophobic graft chain. Colloid Polym Sci 2018. [DOI: 10.1007/s00396-018-4369-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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136
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Hwang J, Kim S, Wiesner U, Lee J. Generalized Access to Mesoporous Inorganic Particles and Hollow Spheres from Multicomponent Polymer Blends. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1801127. [PMID: 29761551 DOI: 10.1002/adma.201801127] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 03/16/2018] [Indexed: 05/27/2023]
Abstract
Mesoporous inorganic particles and hollow spheres are of increasing interest for a broad range of applications, but synthesis approaches are typically material specific, complex, or lack control over desired structures. Here it is reported how combining mesoscale block copolymer (BCP) directed inorganic materials self-assembly and macroscale spinodal decomposition can be employed in multicomponent BCP/hydrophilic inorganic precursor blends with homopolymers to prepare mesoporous inorganic particles with controlled meso- and macrostructures. The homogeneous multicomponent blend solution undergoes dual phase separation upon solvent evaporation. Microphase-separated (BCP/inorganic precursor)-domains are confined within the macrophase-separated majority homopolymer matrix, being self-organized toward particle shapes that minimize the total interfacial area/energy. The pore orientation and particle shape (solid spheres, oblate ellipsoids, hollow spheres) are tailored by changing the kind of homopolymer matrix and associated enthalpic interactions. Furthermore, the sizes of particle and hollow inner cavity are tailored by changing the relative amount of homopolymer matrix and the rates of solvent evaporation. Pyrolysis yields discrete mesoporous inorganic particles and hollow spheres. The present approach enables a high degree of control over pore structure, orientation, and size (15-44 nm), particle shape, particle size (0.6-3 µm), inner cavity size (120-700 nm), and chemical composition (e.g., aluminosilicates, carbon, and metal oxides).
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Affiliation(s)
- Jongkook Hwang
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, Gyeongbuk, Republic of Korea
| | - Seongseop Kim
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, Gyeongbuk, Republic of Korea
| | - Ulrich Wiesner
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Jinwoo Lee
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, Gyeongbuk, Republic of Korea
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137
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Huang W, Xie H, Tian Y, Wang X. Controlled Growth of N-Doped and Large Mesoporous Carbon Spheres with Adjustable Litchi-Like Surface and Particle Size as a Giant Guest Molecule Carrier. ACS APPLIED MATERIALS & INTERFACES 2018; 10:20073-20084. [PMID: 29856590 DOI: 10.1021/acsami.8b02040] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
N-doped mesoporous carbon nanospheres (NMCNs) with tunable particle size, pore size, surface roughness, and inner cavity are extremely important for the future development of new carriers for nanoencapsulation, high-performance giant molecule transport, and cell uptake. However, constructing such a multifunctional material via a simple method still remains a great challenge. Herein, a controlled growth technology was developed for the first time to synthesize such NMCNs based on the initial reaction temperature (IRT) and solution polarity. In this strategy, the IRT not only can adjust the micelle aggregation to obtain NMCNs with large mesopores but also can make the F127 micelle more lyophobic to prepare hollow N-doped mesoporous carbon spheres, which is a great breakthrough. Inspiringly, by varying the solution polarity to make nonuniform growth of nanoparticles, the litchi-like rough surface of NMCNs was obtained, which could significantly improve the cell uptake performance of NMCNs. The current understanding of nucleation and growth mechanism of nanospheres was further extended and realized the development of NMCNs with large mesopores and litchi-like rough surface, which provided a new and interesting fundamental principle for the synthesis of NMCNs. The mesoporous structure of NMCNs was successfully reverse-replicated by nanocasting of tetraethylorthosilicate to obtain mesoporous silica spheres (MSNs), revealing the easy transformation between NMCNs and MSNs. Insulin as a peptide drug cannot be directly administered orally. But it can be used as oral preparation after being loaded into NMCNs, which has never been reported before. Interestingly, the results of the animal experiment showed an excellent in vivo hypoglycemic activity. This finding provides a new paradigm for the fabrication of structurally well-defined NMCNs with a great promise for drug carriers.
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Affiliation(s)
- Wenquan Huang
- School of Pharmacy , Guangdong Pharmaceutical University , Guangzhou 510006 , China
| | - Hui Xie
- School of Pharmacy , Guangdong Pharmaceutical University , Guangzhou 510006 , China
| | - Yong Tian
- School of Pharmacy , Guangdong Pharmaceutical University , Guangzhou 510006 , China
| | - Xiufang Wang
- School of Pharmacy , Guangdong Pharmaceutical University , Guangzhou 510006 , China
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138
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Mizoshita N, Inagaki S. Charge Separation in a Multifunctionalized Framework of Hydrogen-Bonded Periodic Mesoporous Organosilica. Chem Asian J 2018; 13:2117-2125. [PMID: 29877624 DOI: 10.1002/asia.201800779] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Indexed: 11/09/2022]
Abstract
Integration of functional molecular parts into nanoporous materials in a state that allows intermolecular charge or energy transfer is one of the key approaches to the development of photofunctional and electroactive materials. Herein, we report charge separation in a functionalized framework of a periodic mesoporous organosilica (PMO) self-assembled by hydrogen bonds. Electroactive π-conjugated organic species with different electron-donating and electron-accepting properties were selectively fixed onto the external surface of a nanoparticulate PMO, within the pore wall, and onto the surface of the internal mesopore. UV irradiation of the modified PMO resulted in photoinduced electron transfer and charge separation from the external surface to the pore wall and from the pore wall to the surface of the internal mesopores. These results suggest the high potential of multifunctionalized PMOs in the construction of photocatalytic reaction fields.
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Affiliation(s)
| | - Shinji Inagaki
- Toyota Central R&D Laboratories Inc., Nagakute, Aichi, 480-1192, Japan
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139
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Cai Y, Si W, Huang W, Chen P, Shao J, Dong X. Organic Dye Based Nanoparticles for Cancer Phototheranostics. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1704247. [PMID: 29611290 DOI: 10.1002/smll.201704247] [Citation(s) in RCA: 168] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 02/03/2018] [Indexed: 06/08/2023]
Abstract
Phototheranostics, which simultaneously combines photodynamic and/or photothermal therapy with deep-tissue diagnostic imaging, is a promising strategy for the diagnosis and treatment of cancers. Organic dyes with the merits of strong near-infrared absorbance, high photo-to-radical and/or photothermal conversion efficiency, great biocompatibility, ready chemical structure fine-tuning capability, and easy metabolism, have been demonstrated as attractive candidates for clinical phototheranostics. These organic dyes can be further designed and fabricated into nanoparticles (NPs) using various strategies. Compared to free molecules, these NPs can be equipped with multiple synergistic functions and show longer lifetime in blood circulation and passive tumor-targeting property via the enhanced permeability and retention effect. In this article, the recent progress of organic dye-based NPs for cancer phototheranostic applications is summarized, which extends the anticancer arsenal and holds promise for clinical uses in the near future.
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Affiliation(s)
- Yu Cai
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing, 210008, China
| | - Weili Si
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing, 211800, China
| | - Wei Huang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing, 211800, China
- Shaanxi Institute of Flexible Electronics (SIFE), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, 710072, China
| | - Peng Chen
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
| | - Jinjun Shao
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing, 211800, China
| | - Xiaochen Dong
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing, 211800, China
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140
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Chen YZ, Zhang R, Jiao L, Jiang HL. Metal–organic framework-derived porous materials for catalysis. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.02.008] [Citation(s) in RCA: 472] [Impact Index Per Article: 78.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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141
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Zhao J, Huang W, Si P, Ulstrup J, Diao F, Zhang J. General Syntheses of Nanotubes Induced by Block Copolymer Self-Assembly. Macromol Rapid Commun 2018; 39:e1800125. [DOI: 10.1002/marc.201800125] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 03/09/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Jianming Zhao
- Department of Chemistry; Technical University of Denmark; Kemitorvet 207 DK-2800 Kongens Lyngby Denmark
| | - Wei Huang
- Department of Chemistry; Technical University of Denmark; Kemitorvet 207 DK-2800 Kongens Lyngby Denmark
| | - Pengchao Si
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials; Ministry of Education; School of Materials Science and Engineering; Shandong University; Jinan 250061 P. R. China
| | - Jens Ulstrup
- Department of Chemistry; Technical University of Denmark; Kemitorvet 207 DK-2800 Kongens Lyngby Denmark
| | - Fangyuan Diao
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials; Ministry of Education; School of Materials Science and Engineering; Shandong University; Jinan 250061 P. R. China
| | - Jingdong Zhang
- Department of Chemistry; Technical University of Denmark; Kemitorvet 207 DK-2800 Kongens Lyngby Denmark
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142
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Liu X, Pang F, Ge J. Synthesis of N-Doped Mesoporous Carbon Nanorods through Nano-Confined Reaction: High-Performance Catalyst Support for Hydrogenation of Phenol Derivatives. Chem Asian J 2018; 13:822-829. [PMID: 29392862 DOI: 10.1002/asia.201800112] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Indexed: 11/08/2022]
Abstract
Traditional hard-template methods for the preparation of mesoporous carbon structures have been well developed, but there are difficulties associated with complete filling of the organic precursors in ordered mesochannels and exact replication of the templates. Herein, mesoporous carbon nanorods (meso-CNRs) were synthesized through thermal condensation of furfuryl alcohol followed by the nano-confined decomposition of polyfurfuryl alcohol in silica nanotubes (SiO2 NTs) with porous shells. Limited and slow release of gaseous water through the porous shells and finite polyfurfuryl precursor inside silica nanotubes are responsible for the formation of the mesoporous structures. Nitrogen can be doped into the meso-CNRs by adding guanidine hydrochloride to the precursors. The nitrogen dopant not only stabilizes the ultrasmall and active Pd nanocatalyst in the meso-CNRs but also increases the electron density of Pd and accelerates the dissociation of H2 , both of which increase the catalytic activity of the Pd catalyst in hydrogenation reactions.
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Affiliation(s)
- Xueteng Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, P. R. China
| | - Fei Pang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, P. R. China
| | - Jianping Ge
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, P. R. China
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143
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144
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Alavi AS, Meshkini A. Fabrication of poly(ethylene glycol)-coated mesoporous nanocomposite ZnO@Fe2O3 for methotrexate delivery: An integrated nanoplatform for dual-mode cancer therapy. Eur J Pharm Sci 2018; 115:144-157. [DOI: 10.1016/j.ejps.2018.01.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 12/22/2017] [Accepted: 01/11/2018] [Indexed: 12/16/2022]
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145
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Ju M, Li Y, Yu L, Wang C, Zhang L. Two-Phase Diffusion Technique for the Preparation of Ultramacroporous/Mesoporous Silica Microspheres via Interface Hydrolysis, Diffusion, and Gelation of TEOS. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:2046-2056. [PMID: 29309152 DOI: 10.1021/acs.langmuir.7b03764] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Honeycombed hierarchical ultramacroporous/mesoporous silica microspheres were prepared via the hydrolysis of TEOS in the oil-water interface, with subsequent diffusion and gelation in the acidic water-phase microdroplets with the assistance of a simple homemade microdevice. The diffusion of furfuryl alcohol (FA) also happened at a relatively high rate during the hydrolysis and diffusion of TEOS. Therefore, plenty of FA will be inside of the water microdroplets and form a decent number of polyfurfuryl alcohol (PFA) microparticles, thereby obtaining honeycombed hierarchical porosity silica microspheres with abundant ultramacroporous cavities and mesopores after calcination. It was found that the concentration of FA, residence time, and reaction temperature have significant effects on the porosity and pore size due to the influence on the diffusion rate and amount of FA in water-phase microdroplets. The honeycombed silica microspheres have obvious microscopic visible ultramacroporous cavities with the submicrometer cavity diameter as high as 85% porosity based on the rough overall volume of microsphere. N2 adsorption-desorption isotherms show that the honeycombed hierarchical porosity silica microspheres have a high surface area of 602 m2 g-1, a mesopore volume of 0.77 cm3/g, and a mesopore porosity of 99.6% based on the total pore volume of N2 adsorption-desorption. On the basis of the experiment results, a rational formation process of the honeycombed hierarchical porosity silica microspheres was deduced.
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Affiliation(s)
- Minhua Ju
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing Tech University , Nanjing 210009, P. R. China
| | - Yupeng Li
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing Tech University , Nanjing 210009, P. R. China
| | - Liang Yu
- Chemical Technology, Luleå University of Technology , SE-971 87 Luleå, Sweden
| | - Chongqing Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing Tech University , Nanjing 210009, P. R. China
| | - Lixiong Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing Tech University , Nanjing 210009, P. R. China
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146
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Two-dimensional Nitrogen-doped Mesoporous Carbon/Graphene Nanocomposites from the Self-assembly of Block Copolymer Micelles in Solution. CHINESE JOURNAL OF POLYMER SCIENCE 2017. [DOI: 10.1007/s10118-018-2091-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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147
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Zhu YP, Qiao SZ. Unprecedented carbon sub-microspheres with a porous hierarchy for highly efficient oxygen electrochemistry. NANOSCALE 2017; 9:18731-18736. [PMID: 29168533 DOI: 10.1039/c7nr06801h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Developing efficient and robust electrocatalysts for bifunctional oxygen electrocatalysis is crucial for renewable energy technology. Herein, nitrogen and phosphorus co-doped carbon sub-microspheres with fascinating mesostructures are rationally synthesized through an effective soft-templating strategy. The unique features of substantial doping, large surface areas and well-defined porosity endow the dual-doped carbons with high-density electroactive sites, considerable active surface areas and improved mass transfer, ensuring impressive activity and durability in catalyzing oxygen reduction and evolution reactions, even competing with the noble metal benchmarks, thus assuring their use as an air cathode in a rechargeable Zn-air battery with low charge-discharge overpotential and remarkable long-term stability.
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Affiliation(s)
- Yun-Pei Zhu
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia.
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148
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Sharma M, Das B, Sharma M, Deka BK, Park YB, Bhargava SK, Bania KK. Pd/Cu-Oxide Nanoconjugate at Zeolite-Y Crystallite Crafting the Mesoporous Channels for Selective Oxidation of Benzyl-Alcohols. ACS APPLIED MATERIALS & INTERFACES 2017; 9:35453-35462. [PMID: 28933824 DOI: 10.1021/acsami.7b11086] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Solid-state grinding of palladium and copper salts allowed the growth of palladium/copper oxide interface at the zeolite-Y surface. The hybrid nanostructured material was used as reusable heterogeneous catalyst for selective oxidation of various benzyl alcohols. The large surface area provided by the zeolite-Y matrix highly influenced the catalytic activity, as well as the recyclability of the synthesized catalyst. Impregnation of PdO-CuO nanoparticles on zeolite crystallite leads to the generation of mesoporous channel that probably prevented the leaching of the metal-oxide nanoparticles and endorsed high mass transfer. Formation of mesoporous channel at the external surface of zeolite-Y was evident from transmission electron microscopy and surface area analysis. PdO-CuO nanoparticles were found to be within the range of 2-5 nm. The surface area of PdO-CuO-Y catalyst was found to be much lower than parent zeolite-Y. The decrease in surface area as well as the presence of hysteresis loop in the N2-adsoprtion isotherm further suggested successful encapsulation of PdO-CuO nanoparticles via the mesoporous channel formation. The high positive shifting in binding energy in both Pd and Cu was attributed to the influence of zeolite-Y framework on lattice contraction of metal oxides via confinement effect. PdO-CuO-Y catalyst was found to oxidize benzyl alcohol with 99% selectivity. On subjecting to microwave irradiation the same oxidation reaction was found to occur at ambient condition giving same conversion and selectivity.
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Affiliation(s)
- Mukesh Sharma
- Department of Chemical Sciences, Tezpur University , Tezpur, Assam, India , 784028
| | - Biraj Das
- Department of Chemical Sciences, Tezpur University , Tezpur, Assam, India , 784028
| | - Mitu Sharma
- Department of Chemical Sciences, Tezpur University , Tezpur, Assam, India , 784028
| | - Biplab K Deka
- School of Mechanical, Aerospace and Nuclear Engineering, Ulsan National Institute of Science and Technology , Ulsan, Republic of Korea , 44919
| | - Young-Bin Park
- School of Mechanical, Aerospace and Nuclear Engineering, Ulsan National Institute of Science and Technology , Ulsan, Republic of Korea , 44919
| | - Suresh K Bhargava
- School of Sciences, RMIT University , Melbourne, Victoria 3000, Australia
| | - Kusum K Bania
- Department of Chemical Sciences, Tezpur University , Tezpur, Assam, India , 784028
- School of Sciences, RMIT University , Melbourne, Victoria 3000, Australia
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149
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Feng H, Lu X, Wang W, Kang NG, Mays JW. Block Copolymers: Synthesis, Self-Assembly, and Applications. Polymers (Basel) 2017; 9:E494. [PMID: 30965798 PMCID: PMC6418972 DOI: 10.3390/polym9100494] [Citation(s) in RCA: 218] [Impact Index Per Article: 31.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 10/02/2017] [Accepted: 10/03/2017] [Indexed: 01/09/2023] Open
Abstract
Research on block copolymers (BCPs) has played a critical role in the development of polymer chemistry, with numerous pivotal contributions that have advanced our ability to prepare, characterize, theoretically model, and technologically exploit this class of materials in a myriad of ways in the fields of chemistry, physics, material sciences, and biological and medical sciences. The breathtaking progress has been driven by the advancement in experimental techniques enabling the synthesis and characterization of a wide range of block copolymers with tailored composition, architectures, and properties. In this review, we briefly discussed the recent progress in BCP synthesis, followed by a discussion of the fundamentals of self-assembly of BCPs along with their applications.
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Affiliation(s)
- Hongbo Feng
- Department of Chemistry, University of Tennessee, Knoxville, TN 37996, USA.
| | - Xinyi Lu
- Department of Chemistry, University of Tennessee, Knoxville, TN 37996, USA.
| | - Weiyu Wang
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA.
| | - Nam-Goo Kang
- Department of Chemistry, University of Tennessee, Knoxville, TN 37996, USA.
| | - Jimmy W Mays
- Department of Chemistry, University of Tennessee, Knoxville, TN 37996, USA.
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA.
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150
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Xue Y, Guo Y, Yu M, Wang M, Ma PX, Lei B. Monodispersed Bioactive Glass Nanoclusters with Ultralarge Pores and Intrinsic Exceptionally High miRNA Loading for Efficiently Enhancing Bone Regeneration. Adv Healthc Mater 2017; 6. [PMID: 28737023 DOI: 10.1002/adhm.201700630] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 06/18/2017] [Indexed: 11/09/2022]
Abstract
Bioactive glass nanoparticles (BGNs) have attracted much attention in drug delivery and bone tissue regeneration, due to the advantages including biodegradation, high bone-bonding bioactivity, and facile large-scale fabrication. However, the wide biomedical applications of BGNs such as efficient gene delivery are limited due to their poor pore structure and easy aggregation. Herein, for the first time, this study reports novel monodispersed bioactive glass nanoclusters (BGNCs) with ultralarge mesopores (10-30 nm) and excellent miRNA delivery for accelerating critical-sized bone regeneration. BGNCs with different size (100-500 nm) are fabricated by using a branched polyethylenimine as the structure director and catalyst. BGNCs show an excellent apatite-forming ability and high biocompatibility. Importantly, BGNCs demonstrate an almost 19 times higher miRNA loading than those of conventional BGNs. Additionally, BGNCs-miRNA nanocomplexes exhibit a significantly high antienzymolysis, enhance cellular uptake and miRNA transfection efficiency, overpassing BGNs and commercial Lipofectamine 3000. BGNCs-mediated miRNA delivery significantly improves the osteogenic differentiation of bone marrow stromal stem cells in vitro and efficiently enhances bone formation in vivo. BGNCs can be a highly efficient nonviral vector for various gene therapy applications. The study may provide a novel strategy to develop highly gene-activated bioactive nanomaterials for simultaneous tissue regeneration and disease therapy.
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Affiliation(s)
- Yumeng Xue
- Frontier Institute of Science and Technology; Xi'an Jiaotong University; Xi'an 710049 China
| | - Yi Guo
- Frontier Institute of Science and Technology; Xi'an Jiaotong University; Xi'an 710049 China
| | - Meng Yu
- Frontier Institute of Science and Technology; Xi'an Jiaotong University; Xi'an 710049 China
| | - Min Wang
- Frontier Institute of Science and Technology; Xi'an Jiaotong University; Xi'an 710049 China
| | - Peter X. Ma
- Department of Biologic and Materials Sciences; University of Michigan; Ann Arbor MI 48109-1078 USA
| | - Bo Lei
- Frontier Institute of Science and Technology; Xi'an Jiaotong University; Xi'an 710049 China
- State Key Laboratory for Mechanical Behavior of Materials; Xi'an, Jiaotong University; Xi'an 710049 China
- State Key Laboratory for Manufacturing Systems Engineering; Xi'an Jiaotong University; Xi'an 710054 China
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