1
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Li C, Zhang G, Wang Y, Lin L, Ken Ostrikov K. Rational synthesis of methylsilsesquioxane aerogels addressing thermal load and compression recovery issues in Li-ion batteries. J Colloid Interface Sci 2024; 669:157-174. [PMID: 38713955 DOI: 10.1016/j.jcis.2024.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 04/25/2024] [Accepted: 05/01/2024] [Indexed: 05/09/2024]
Abstract
Li-ion batteries suffer from two key safety issues: thermal overload and compression recovery, which may lead to flammability and mechanical failure. Silica aerogels are promising solutions to both these issues owing to their excellent thermal stability and tailored mechanical properties. However, finding the optimum sol composition in sol-gel-based aerogel synthesis is needed to address these issues at industry-relevant scales. Here, we propose an innovative approach to determine the optimum sol composition for methylsilsesquioxane (MSQ) aerogel sheets, which is based on the mechanisms of the effects of molar ratios of hydrolysis water and isopropyl alcohol (IPA) to methyltrimethoxysilane (MTMS) on the physical properties of MSQ aerogel sheets and according to the ternary contour distribution of their properties. The synthesized MSQ aerogels exhibited a soft, light, and powderless texture and featured superhydrophobic properties (150.2°), low thermal conductivity of 33.6 mW/(m·K), high thermal stability temperature in nitrogen atmosphere at 479.3 °C and moderate short-term (<6 h) service temperature of 120.0 °C. Significantly, the structural stability and elasticity of the aerogels surpassed the current state-of-the-art, showing recovery to 81.3 % of the original thickness and 85.2 % of the original stress after being subjected to 400 cycles of high-speed and high-strain consecutive compression, respectively. These excellent properties make the MSQ aerogel sheets promising for applications in thermal load and compression recovery management of diverse energy storage devices, including batteries for next-generation electric vehicles.
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Affiliation(s)
- Chengdong Li
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China; International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China.
| | - Guihua Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China; International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Yuxiang Wang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China; International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Liangliang Lin
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China; International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Kostya Ken Ostrikov
- School of Chemistry and Physics and QUT Centre for Materials Science, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
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2
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Zhang Y, Yao M, Wang T, Wu H, Zhang Y. A 3D Hierarchical Host with Gradient-Distributed Dielectric Properties toward Dendrite-free Lithium Metal Anode. Angew Chem Int Ed Engl 2024; 63:e202403399. [PMID: 38483103 DOI: 10.1002/anie.202403399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Indexed: 04/05/2024]
Abstract
The conventional conductive three-dimensional (3D) host fails to effectively stabilize lithium metal anodes (LMAs) due to the internal incongruity arising from nonuniform lithium-ion gradient and uniform electric fields. This results in undesirable Li "top-growth" behavior and dendritic Li growth, significantly impeding the practical application of LMAs. Herein, we construct a 3D hierarchical host with gradient-distributed dielectric properties (GDD-CH) that effectively regulate Li-ion diffusion and deposition behavior. It comprises a 3D carbon fiber host modified by layer-by-layer bottom-up attenuating Sb particles, which could promote Li-ion homogeneously distribution and reduce ion concentration gradient via unique gradient dielectric polarization. Sb transforms into superionic conductive Li3Sb alloy during cycling, facilitating Li-ion dredging and pumps towards the bottom, dominating a bottom-up deposition regime confirmed by COMSOL Multiphysics simulations and physicochemical characterizations. Consequently, a stable cycling performance of symmetrical cells over 2000 h under a high current density of 10 mA cm-2 is achieved. The GDD-CH-based lithium metal battery shows remarkable cycling stability and ultra-high energy density of 378 Wh kg-1 with a low N/P ratio (1.51). This strategy of dielectric gradient design broadens the perspective for regulating the Li deposition mechanism and paves the way for developing high-energy-density lithium metal anodes with long durability.
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Affiliation(s)
- Yueying Zhang
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610064, P.R. China
| | - Meng Yao
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610064, P.R. China
| | - Tuan Wang
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610064, P.R. China
| | - Hao Wu
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610064, P.R. China
- Engineering Research Center of Alternative Energy Materials & Devices, Ministry of Education, Sichuan University, Chengdu, 610064, P.R. China
| | - Yun Zhang
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610064, P.R. China
- Engineering Research Center of Alternative Energy Materials & Devices, Ministry of Education, Sichuan University, Chengdu, 610064, P.R. China
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3
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Zhang C, Li J, Jiang J, Hu X, Yang S, Wang K, Guo A, Du H. Flexible and Compressible Nanostructure-Assembled Aramid Nanofiber/Silica Composites Aerogel. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1938. [PMID: 38730745 PMCID: PMC11084330 DOI: 10.3390/ma17091938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Revised: 04/12/2024] [Accepted: 04/16/2024] [Indexed: 05/13/2024]
Abstract
The Applications of silica aerogel are limited due to its brittleness and low strength. As a result, it is essential to strengthen and toughen it. Organic nanofibers are one of the preferred reinforcement materials. In this work, we designed and fabricated flexible and compressible nanostructure-assembled aramid nanofiber/silica composites aerogel (ANF/SiO2 aerogel) to improve the mechanical strength and flexibility of silica aerogel without compromising thermal insulation properties. The aramid nanofiber/silica composite aerogels were prepared by immersing the aramid nanofiber wet gel into the silica sol for a certain period of time followed by freeze drying without solvent replacement. The surface modifier 3-aminopropyltriethoxysilane (APTES) was used as a coupling agent to form chemical linkage between the ANF fiber and silica gel. It was observed that APTES can effectively drive the silica sol to infuse into ANF hydrogel, promoting the assembly of silica gel onto the fiber surface and a uniform distribution in the network of ANF. The compressive resilience, thermal stability, and thermal insulation properties of the composite aerogels were evaluated by inducing the silica aerogel into the ANF network to form a protective layer on the fiber and change the pore structure in the ANF network.
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Affiliation(s)
- Chensi Zhang
- School of Materials Science and Engineering, Key Lab of Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin University, Tianjin 300072, China; (C.Z.); (J.L.); (J.J.); (K.W.); (A.G.)
| | - Jiangtao Li
- School of Materials Science and Engineering, Key Lab of Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin University, Tianjin 300072, China; (C.Z.); (J.L.); (J.J.); (K.W.); (A.G.)
| | - Junpeng Jiang
- School of Materials Science and Engineering, Key Lab of Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin University, Tianjin 300072, China; (C.Z.); (J.L.); (J.J.); (K.W.); (A.G.)
| | - Xiaoxia Hu
- Analysis and Test Center, Tianjin University, Tianjin 300072, China; (X.H.); (S.Y.)
| | - Shuo Yang
- Analysis and Test Center, Tianjin University, Tianjin 300072, China; (X.H.); (S.Y.)
| | - Kuan Wang
- School of Materials Science and Engineering, Key Lab of Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin University, Tianjin 300072, China; (C.Z.); (J.L.); (J.J.); (K.W.); (A.G.)
| | - Anran Guo
- School of Materials Science and Engineering, Key Lab of Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin University, Tianjin 300072, China; (C.Z.); (J.L.); (J.J.); (K.W.); (A.G.)
| | - Haiyan Du
- School of Materials Science and Engineering, Key Lab of Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin University, Tianjin 300072, China; (C.Z.); (J.L.); (J.J.); (K.W.); (A.G.)
- Analysis and Test Center, Tianjin University, Tianjin 300072, China; (X.H.); (S.Y.)
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4
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Duan H, Meng D, Yuan S. Solution Combustion Synthesis of High-Performance Nano-LiFePO 4/C Cathode Material from Cost-Effective Mixed Fuels. MATERIALS (BASEL, SWITZERLAND) 2023; 16:7155. [PMID: 38005082 PMCID: PMC10672621 DOI: 10.3390/ma16227155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 11/08/2023] [Accepted: 11/09/2023] [Indexed: 11/26/2023]
Abstract
Solution combustion synthesis (SCS) is considered as an efficient and energy-saving method for preparing LiFePO4/C composite material with the nanostructure (Nano-LiFePO4/C). In this study, Nano-LiFePO4/C cathode material was prepared using SCS using a cost-effective combination of urea and sorbitol as mixed fuels. The effect of mixed fuels on combustion behavior and microstructure as well as on electrochemical performance was studied using XRD, BET, SEM, TEM, and electrochemical characterization methods. Multiple characterization results indicated that the maximum temperature (Tm) and particle size were influenced by the usage of urea and sorbitol. The sample derived under optimum conditions exhibits a mesoporous nanostructure with a large surface specific area and attractive electrochemical performance with a discharge capacity of 153.5 mAh/g at 0.1 C, which shows strong potential for commercial applications in the future.
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Affiliation(s)
- Haozhi Duan
- National Engineering Laboratory for Carbon Fiber Technology, Institute of Coal Chemistry, Chinese Academy of Sciences, 27 Taoyuan South Road, Taiyuan 030001, China; (H.D.); (D.M.)
- CAS Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences, 27 Taoyuan South Road, Taiyuan 030001, China
| | - Dehai Meng
- National Engineering Laboratory for Carbon Fiber Technology, Institute of Coal Chemistry, Chinese Academy of Sciences, 27 Taoyuan South Road, Taiyuan 030001, China; (H.D.); (D.M.)
- CAS Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences, 27 Taoyuan South Road, Taiyuan 030001, China
| | - Shuxia Yuan
- National Engineering Laboratory for Carbon Fiber Technology, Institute of Coal Chemistry, Chinese Academy of Sciences, 27 Taoyuan South Road, Taiyuan 030001, China; (H.D.); (D.M.)
- CAS Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences, 27 Taoyuan South Road, Taiyuan 030001, China
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5
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Li Z, Shen K, Hu M, Shulga YM, Chen Z, Liu Q, Li M, Wu X. Heat-Treated Aramid Pulp/Silica Aerogel Composites with Improved Thermal Stability and Thermal Insulation. Gels 2023; 9:749. [PMID: 37754430 PMCID: PMC10530268 DOI: 10.3390/gels9090749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/09/2023] [Accepted: 09/12/2023] [Indexed: 09/28/2023] Open
Abstract
In this work, we prepared heat-treated aramid pulp/silica aerogel composites (AP/aerogels) and investigated in detail the feasibility of improving thermal stability and thermal insulation via tailored heat treatment. The microstructure and FTIR spectra reveal that AP/aerogels are formed by a physical combination of the silica aerogel matrix and aramid pulps. When the heat treatment temperature increases, the density slightly decreases and then increases to the maximum due to the significant volume shrinkage. The pyrolysis of aramid pulp and the collapse of silica skeletons occur during heat treatment; nevertheless, the typical structures of AP/aerogels do not change significantly. It is also found that both the hydrophobicity and the thermal insulation decrease with the increasing heat treatment temperature. We note that when the heat treatment is at 600 °C, the AP/aerogel still maintains a low density of 0.19 g/cm3 and a contact angle of 138.5°. The thermal conductivity is as low as 26.11 mW/m/K, measured using the transient hot wire method. Furthermore, the heat-treated AP/aerogels can avoid heat shock and possible thermal hazards during practical thermal insulation applications. The onset temperatures of the thermal decomposition of AP/aerogels increase from 298.8 °C for an untreated one to 414.7 °C for one treated at 600 °C, indicating that the thermal stability of AP/aerogels is improved significantly. This work provides a practical engineering approach to expand the thermal insulation applications of silica aerogel composites.
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Affiliation(s)
- Zhi Li
- School of Resources and Safety Engineering, Central South University, Changsha 410083, China
| | - Kai Shen
- School of Resources and Safety Engineering, Central South University, Changsha 410083, China
| | - Min Hu
- School of Resources and Safety Engineering, Central South University, Changsha 410083, China
| | - Yury M. Shulga
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, Academician Semenov Avenue 1, Chernogolovka, 142432 Moscow, Russia
| | - Zhenkui Chen
- Department of Engineering Technology and Application, The Army Infantry College of PLA, Nanchang 330103, China
| | - Qiong Liu
- School of Resources and Safety Engineering, Central South University, Changsha 410083, China
| | - Ming Li
- School of Resources and Safety Engineering, Central South University, Changsha 410083, China
| | - Xiaoxu Wu
- School of Resources and Safety Engineering, Central South University, Changsha 410083, China
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6
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Rigby SP. The Anatomy of Amorphous, Heterogeneous Catalyst Pellets. MATERIALS (BASEL, SWITZERLAND) 2023; 16:3205. [PMID: 37110038 PMCID: PMC10142278 DOI: 10.3390/ma16083205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/03/2023] [Accepted: 04/05/2023] [Indexed: 06/19/2023]
Abstract
This review focuses on disordered, or amorphous, porous heterogeneous catalysts, especially those in the forms of pellets and monoliths. It considers the structural characterisation and representation of the void space of these porous media. It discusses the latest developments in the determination of key void space descriptors, such as porosity, pore size, and tortuosity. In particular, it discusses the contributions that can be made by various imaging modalities in both direct and indirect characterisations and their limitations. The second part of the review considers the various types of representations of the void space of porous catalysts. It was found that these come in three main types, which are dependent on the level of idealisation of the representation and the final purpose of the model. It was found that the limitations on the resolution and field of view for direct imaging methods mean that hybrid methods, combined with indirect porosimetry methods that can bridge the many length scales of structural heterogeneity and provide more statistically representative parameters, deliver the best basis for model construction for understanding mass transport in highly heterogeneous media.
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Affiliation(s)
- Sean P. Rigby
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University Park Campus, University of Nottingham, Nottingham NG7 2RD, UK;
- Geo-Energy Research Centre, University Park Campus, University of Nottingham, Nottingham NG7 2RD, UK
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7
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Sun M, Wang Y, Wang X, Liu Q, Li M, Shulga YM, Li Z. In-Situ Synthesis of Layered Double Hydroxide/Silica Aerogel Composite and Its Thermal Safety Characteristics. Gels 2022; 8:gels8090581. [PMID: 36135293 PMCID: PMC9498337 DOI: 10.3390/gels8090581] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/05/2022] [Accepted: 09/08/2022] [Indexed: 11/16/2022] Open
Abstract
To adjust the thermal safety of hydrophobic silica aerogel, layered double hydroxide (LDH)/silica aerogel (SA) composites were prepared by an in-situ sol-gel process at ambient pressure. This study found the physical combination of SA and MgAl-LDH based on the FTIR spectra and phase composition of LDH/SA. The N2 sorption analysis confirms that the introduction of MgAl-LDH does not change the mesoporous attribution of LDH/SA significantly. With the increase in MgAl-LDH addictive content, the low density (0.12–0.13 g/cm3), low thermal conductivity (24.28–26.38 mW/m/K), and large specific surface area (730.7–903.7 m2g) of LDH/SA are still maintained, which can satisfy the requirements of thermal insulation. The TG-DSC analysis demonstrates that the endothermic effects and metal oxides formed during the MgAl-LDH decomposition are beneficial to the improvement of the thermal stability of LDH/SA composites. In addition, it was found that the gross calorific values of LDH/SA composites decrease with an increase in MgAl-LDH addictive content, all of which are lower than that of the pure SA. The research outcomes indicate that the thermal safety of LDH/SA composites is enhanced significantly by doping MgAl-LDH without impairing too many of the excellent properties, which benefits their expansion in the thermal insulation field.
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Affiliation(s)
- Mengtian Sun
- School of Resources and Safety Engineering, Central South University, Changsha 410083, China
| | - Yang Wang
- School of Resources and Safety Engineering, Central South University, Changsha 410083, China
| | - Xiaowu Wang
- School of Resources and Safety Engineering, Central South University, Changsha 410083, China
| | - Qiong Liu
- School of Resources and Safety Engineering, Central South University, Changsha 410083, China
| | - Ming Li
- School of Resources and Safety Engineering, Central South University, Changsha 410083, China
| | - Yury M. Shulga
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka 142432, Russia
- National University of Science and Technology MISIS, Leninsky pr. 4, Moscow 119049, Russia
| | - Zhi Li
- School of Resources and Safety Engineering, Central South University, Changsha 410083, China
- Correspondence:
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8
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Kong D, Han J, Gao Y, Gao Y, Zhou W, Liu G, Lu G. Lower coordination Co 3O 4 mesoporous hierarchical microspheres for comprehensive sensitization of triethylamine vapor sensor. JOURNAL OF HAZARDOUS MATERIALS 2022; 430:128469. [PMID: 35739661 DOI: 10.1016/j.jhazmat.2022.128469] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 02/07/2022] [Accepted: 02/08/2022] [Indexed: 06/15/2023]
Abstract
Monitoring and detecting triethylamine (TEA) vapor are essential in the organic synthesis industry. Two-dimensional Co3O4 nanosheets with large surface areas and multiple active sites are ideal for fabricating chemiresistive gas sensors. However, the face-to-face stacking owing to the high surface energy of nanosheets, would cover up the active sites, obstruct gas diffusion, raise contact resistance, which all hinder its utilization for TEA detection. Herein, the Co3O4 mesoporous nanosheets were assembled into hierarchical microspheres by adding the structure-directing agent PVP K30 and combined with a proper annealing temperature, which optimized their grain size, specific surface area, pores structure, oxygen vacancies, and the atomic ratio of Co2+ to Co3+. And these ultimately improved the detection capability of TEA. The sensor based on Co3O4 sphere-300 exhibits the highest sensor response of 34.1-100 ppm TEA and a low detection limit (0.5 ppm) at a low working temperature of 150 °C. The promising properties are mainly due to the combination of several advantages that facilitate simultaneous chemical and electronic sensitization. This work prepared a high-performance TEA gas sensor and verified the improvement of comprehensive sensitization on the gas-sensing performance of two-dimensional metal oxide semiconductors.
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Affiliation(s)
- Dehao Kong
- State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, Jilin 130012, China
| | - Jiayin Han
- State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, Jilin 130012, China
| | - Yubing Gao
- State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, Jilin 130012, China
| | - Yuan Gao
- State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, Jilin 130012, China.
| | - Weirong Zhou
- State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, Jilin 130012, China
| | - Guannan Liu
- State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, Jilin 130012, China
| | - Geyu Lu
- State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, Jilin 130012, China.
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9
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Siemiaszko G, Hryniewicka A, Breczko J, Delgado OF, Markiewicz KH, Echegoyen L, Plonska-Brzezinska ME. Polymeric Network Hierarchically Organized on Carbon Nano-onions: Block Polymerization as a Tool for the Controlled Formation of Specific Pore Diameters. ACS APPLIED POLYMER MATERIALS 2022; 4:2442-2458. [PMID: 35434638 PMCID: PMC9004317 DOI: 10.1021/acsapm.1c01788] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 02/28/2022] [Indexed: 05/10/2023]
Abstract
The organization of specific pores in carbonaceous three-dimensional networks is crucial for efficient electrocatalytic processes and electrochemical performance. Therefore, the synthesis of porous materials with ordered and well-defined pores is required in this field. The incorporation of carbon nanostructures into polymers can create material structures that are more ordered in comparison to those of the pristine polymers. In this study we applied polymer-templated methods of carbon material preparation, in which outer blocks of the star copolymers form the carbon skeleton, while the core part is pore-forming. Well-defined 6-star-(poly(methyl acrylate)-b-poly(4-acetoxystyrene)) dendrimers were synthesized by reversible addition-fragmentation chain-transfer polymerization. They were then transformed into poly(4-vinylphenol) derivatives (namely 6-star-(poly(methyl acrylate)-b-poly(4-vinylphenol)), subjected to polycondensation with formaldehyde, and pyrolyzed at 800 °C. Cross-linking of phenolic groups provides a polymer network that does not depolymerize by pyrolysis, unlike poly(methyl acrylate) chains. The selected star polymers were attached to carbon nano-onions (CNOs) to improve the organization of the polymer chains. Herein, the physicochemical properties of CNO-polymer hybrids, including the textural and the electrochemical properties, were compared with those of the pristine pyrolyzed polymers obtained under analogous experimental conditions. For these purposes, we used several experimental and theoretical methods, such as infrared, Raman, and X-ray photoelectron spectroscopy, nitrogen adsorption/desorption measurements, scanning and transmission electron microscopy, and electrochemical studies, including cyclic voltammetry. All of the porous materials were evaluated for use as supercapacitors.
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Affiliation(s)
- Gabriela Siemiaszko
- Department
of Organic Chemistry, Faculty of Pharmacy with the Division of Laboratory
Medicine, Medical University of Bialystok, Mickiewicza 2A, 15-222 Bialystok, Poland
| | - Agnieszka Hryniewicka
- Department
of Organic Chemistry, Faculty of Pharmacy with the Division of Laboratory
Medicine, Medical University of Bialystok, Mickiewicza 2A, 15-222 Bialystok, Poland
| | - Joanna Breczko
- Department
of Organic Chemistry, Faculty of Pharmacy with the Division of Laboratory
Medicine, Medical University of Bialystok, Mickiewicza 2A, 15-222 Bialystok, Poland
- Faculty
of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245 Bialystok, Poland
| | - Olivia Fernandez Delgado
- Department
of Chemistry, University of Texas at El
Paso, 500 West University Avenu, El Paso, Texas 79968 United
States
| | - Karolina H. Markiewicz
- Faculty
of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245 Bialystok, Poland
| | - Luis Echegoyen
- Department
of Chemistry, University of Texas at El
Paso, 500 West University Avenu, El Paso, Texas 79968 United
States
| | - Marta E. Plonska-Brzezinska
- Department
of Organic Chemistry, Faculty of Pharmacy with the Division of Laboratory
Medicine, Medical University of Bialystok, Mickiewicza 2A, 15-222 Bialystok, Poland
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10
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Jing W, Yang C, Luo S, Lin X, Tang M, Zheng R, Lian D, Luo X. One-Pot Method to Synthesize Silver Nanoparticle-Modified Bamboo-Based Carbon Aerogels for Formaldehyde Removal. Polymers (Basel) 2022; 14:polym14050860. [PMID: 35267682 PMCID: PMC8912511 DOI: 10.3390/polym14050860] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 02/16/2022] [Accepted: 02/20/2022] [Indexed: 02/04/2023] Open
Abstract
The present study demonstrated a freeze-drying-carbonization method to synthesize silver nanoparticle-modified bamboo-based carbon aerogels to remove formaldehyde. The bamboo-based carbon aerogel (BCA) has the advantages of controllable pore size and rich oxygen-containing groups, which can provide a good foundation for surface modification. BCA can greatly enhance the purification of formaldehyde by loading silver nanoparticles. The maximum adsorption capacity of 5% Ag/BCA for formaldehyde reached 42 mg/g under 25 ppm formaldehyde concentration, which is 5.25 times more than that of BCA. The relevant data were fitted by the Langmuir model and the pseudo 2nd-order model and good results were obtained, indicating that chemical absorption occurred between the carbonyl of formaldehyde and the hydroxyl of BCA. Therefore, silver nanoparticle-modified bamboo-based carbon aerogels play a positive role in the selective removal of formaldehyde. Silver nanoparticles promoted the activation of oxygen and strengthened the effect of BCA on HCHO adsorption.
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Affiliation(s)
- Wenxiang Jing
- Engineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology, Mianyang 621002, China; (W.J.); (X.L.)
- Yibin Industrial Academy of Forestry and Bamboo, Yibin 644005, China; (C.Y.); (M.T.); (R.Z.); (D.L.)
| | - Chai Yang
- Yibin Industrial Academy of Forestry and Bamboo, Yibin 644005, China; (C.Y.); (M.T.); (R.Z.); (D.L.)
| | - Shuang Luo
- Sichuan Tea College, Yibin University, Yibin 644000, China;
| | - Xiaoyan Lin
- Engineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology, Mianyang 621002, China; (W.J.); (X.L.)
- Correspondence:
| | - Min Tang
- Yibin Industrial Academy of Forestry and Bamboo, Yibin 644005, China; (C.Y.); (M.T.); (R.Z.); (D.L.)
| | - Renhong Zheng
- Yibin Industrial Academy of Forestry and Bamboo, Yibin 644005, China; (C.Y.); (M.T.); (R.Z.); (D.L.)
| | - Dongming Lian
- Yibin Industrial Academy of Forestry and Bamboo, Yibin 644005, China; (C.Y.); (M.T.); (R.Z.); (D.L.)
| | - Xuegang Luo
- Engineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology, Mianyang 621002, China; (W.J.); (X.L.)
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11
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Ledezma Lopez GA, Verstraete JJ, Sorbier L, Glowska A, Leinekugel-Le-Cocq D, Jolimaitre E, Jallut C. Generation of γ-Alumina Digital Twins Using a Nitrogen Porosimetry Simulation. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c02849] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gabriel Alejandro Ledezma Lopez
- IFP Energies Nouvelles, Rond-point de l’échangeur de Solaize, BP 3, 69360 Solaize, France
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007 43 boulevard du 11 novembre 1918, Villeurbanne, F-69100, France
| | - Jan J. Verstraete
- IFP Energies Nouvelles, Rond-point de l’échangeur de Solaize, BP 3, 69360 Solaize, France
| | - Loïc Sorbier
- IFP Energies Nouvelles, Rond-point de l’échangeur de Solaize, BP 3, 69360 Solaize, France
| | - Aleksandra Glowska
- IFP Energies Nouvelles, Rond-point de l’échangeur de Solaize, BP 3, 69360 Solaize, France
- Centre for Nature Inspired Engineering (CNIE), University College of London, Gower Street, London, WC1E6BT, United Kingdom
| | | | - Elsa Jolimaitre
- IFP Energies Nouvelles, Rond-point de l’échangeur de Solaize, BP 3, 69360 Solaize, France
| | - Christian Jallut
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007 43 boulevard du 11 novembre 1918, Villeurbanne, F-69100, France
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12
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Characterization of mesoporous region by the scanning of the hysteresis loop in adsorption–desorption isotherms. ADSORPTION 2021. [DOI: 10.1007/s10450-021-00342-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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13
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Wu Y, Wu Z, Yue L, Zhong B, Liang J, Luo Y, Kong Q, Asiri AM, Guo X, Liu Q, Sun X. Directionally Tailoring Macroporous Honeycomb-Like Structured Carbon Nanofibers toward High-Capacitive Potassium Storage. ACS APPLIED MATERIALS & INTERFACES 2021; 13:30693-30702. [PMID: 34156816 DOI: 10.1021/acsami.1c07111] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Constructing high-capacitive potassium storage materials can avoid the sluggish and unstable bulk diffusion process via a surface-induced process, which is conducive to swift and frequent potassium storage. Herein, we demonstrated the use of macroporous honeycomb-like carbon nanofibers (MHCNFs) as an excellent anode material for high-capacitive potassium storage. The as-made MHCNFs feature abundant well-controlled macropores, an amorphous structure, and a large specific surface area of around 595.9 m2 g-1. These structural characteristics could significantly reduce the transferring distance of electrons/ions, offer abundant active sites, enable high-capacitive contribution, and thus substantially improve the kinetics and structural stability of MHCNFs. Experimental investigation demonstrated that MHCNFs enable ultrahigh potassium storage ability (329.1 mAh g-1 at 100 mA g-1) and competitive rate capability (168.5 mAh g-1 at 5000 mA g-1). More impressively, even when cycled at 1000 mA g-1, the robust structure of MHCNFs can still enable the electrodes a capacity of 252.6 mAh g-1 over repeating 2500 cycles. This work offers a promising strategy that macropore engineering coupled with amorphous structure can make effectively elevated K+ diffusion kinetic performance and promoted K+ adsorption/intercalation storage possible.
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Affiliation(s)
- Yuanming Wu
- School of Chemical Engineering, Sichuan University, Chengdu 610065, Sichuan, China
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China
| | - Zhenguo Wu
- School of Chemical Engineering, Sichuan University, Chengdu 610065, Sichuan, China
| | - Luchao Yue
- School of Chemical Engineering, Sichuan University, Chengdu 610065, Sichuan, China
| | - Benhe Zhong
- School of Chemical Engineering, Sichuan University, Chengdu 610065, Sichuan, China
| | - Jie Liang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China
| | - Yonglan Luo
- Institute for Advanced Study, Chengdu University, Chengdu 610106, Sichuan, China
| | - Qingquan Kong
- Institute for Advanced Study, Chengdu University, Chengdu 610106, Sichuan, China
| | - Abdullah M Asiri
- Chemistry Department, Faculty of Science & Center of Excellence for Advanced Materials Research, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Xiaodong Guo
- School of Chemical Engineering, Sichuan University, Chengdu 610065, Sichuan, China
| | - Qian Liu
- Institute for Advanced Study, Chengdu University, Chengdu 610106, Sichuan, China
| | - Xuping Sun
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China
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14
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Zhang Y, Wu L, Deng X, Deng Y, Wu X, Shi L, Li M, Liu Q, Cheng X, Li Z. Improving the flame retardance of hydrophobic silica aerogels through a facile post-doping of magnesium hydroxide. ADV POWDER TECHNOL 2021. [DOI: 10.1016/j.apt.2021.03.041] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Cao M, Chen Y, Huang X, Sun L, Xu J, Yang K, Zhao X, Lin L. Construction of PA6-rGO nanofiber membrane via electrospraying combining electrospinning processes for emulsified oily sewage purification. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.01.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Wu SC, Chang PH, Chou SH, Huang CY, Liu TC, Peng CH. Waffle-Like Carbons Combined with Enriched Mesopores and Highly Heteroatom-Doped Derived from Sandwiched MOF/LDH/MOF for High-Rate Supercapacitor. NANOMATERIALS 2020; 10:nano10122388. [PMID: 33265940 PMCID: PMC7760639 DOI: 10.3390/nano10122388] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 11/25/2020] [Accepted: 11/26/2020] [Indexed: 12/04/2022]
Abstract
Supercapacitors (SCs) are promising for powering mobile devices, electric vehicles and smart power grids due to their fast charge/discharge rate, high power capability and robust cycle stability. Nitrogen-doped porous carbons are great alternatives because they provide pseudocapacitance without losing their power rate. Nanoporous carbon derived from metal organic frameworks (MOFs) is an ideal precursor for preparing heteroatom-doped carbons due to their abundant nitrogen contents and incredible specific surface areas. However, severe aggregations and the leakage of nitrogen can occur during harsh carbonization. In this study, we used CoAl-LDH (cobalt aluminum layered double hydroxide) as an in-situ growth substrate, allowing Co-based MOF to uniformly grow onto the CoAl-LDH to form a sandwiched MOF/LDH/MOF structure. After acid etching, we obtained waffle-like nanoporous carbons (WNPC). WNPC exhibited high nitrogen and oxygen retention (7.5 wt% and 9.1 wt%) and a broad mesopores distribution with specific surface areas of 594 m2g−1, which promoted a sieving effect. This renders a specific capacitance of 300.7 F·g−1 at 1 A·g−1 and the high retention (72%) of capacitance at 20 A·g−1, ensuring its use at high-rate supercapacitor electrodes. Finally, the WNPC symmetric supercapacitor reaches a superior specific energy of 27 W·h·kg−1 at a power of 500 W·kg−1, and a good cycle stability (85% capacitance retention after 10,000 cycles).
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Affiliation(s)
- Szu-Chen Wu
- Department of Materials Science and Engineering, National Chiao Tung University, 1001 University Road, Hsinchu 300, Taiwan; (S.-C.W.); (S.-H.C.); (C.-Y.H.)
| | - Po-Hsueh Chang
- Department of Chemical and Materials Engineering, MingHsin University of Science and Technology, 1 Xinxing Road, Xinfeng, Hsinchu 304, Taiwan;
| | - Syun-Hong Chou
- Department of Materials Science and Engineering, National Chiao Tung University, 1001 University Road, Hsinchu 300, Taiwan; (S.-C.W.); (S.-H.C.); (C.-Y.H.)
| | - Chih-Yang Huang
- Department of Materials Science and Engineering, National Chiao Tung University, 1001 University Road, Hsinchu 300, Taiwan; (S.-C.W.); (S.-H.C.); (C.-Y.H.)
| | - Ta-Chung Liu
- Department of Materials Science and Engineering, National Chiao Tung University, 1001 University Road, Hsinchu 300, Taiwan; (S.-C.W.); (S.-H.C.); (C.-Y.H.)
- Correspondence: (T.-C.L.); (C.-H.P.)
| | - Cheng-Hsiung Peng
- Department of Chemical and Materials Engineering, MingHsin University of Science and Technology, 1 Xinxing Road, Xinfeng, Hsinchu 304, Taiwan;
- Correspondence: (T.-C.L.); (C.-H.P.)
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17
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Agafonov AV, Kraev AS, Baranchikov AE, Ivanov VK. Electrorheological Properties of Polydimethylsiloxane/TiO 2-Based Composite Elastomers. Polymers (Basel) 2020; 12:polym12092137. [PMID: 32962065 PMCID: PMC7569977 DOI: 10.3390/polym12092137] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/15/2020] [Accepted: 09/16/2020] [Indexed: 02/08/2023] Open
Abstract
Electrorheological elastomers based on polydimethylsiloxane filled with hydrated titanium dioxide with a particle size of 100-200 nm were obtained by polymerization of the elastomeric matrix, either in the presence, or in the absence, of an external electric field. The viscoelastic and dielectric properties of the obtained elastomers were compared. Analysis of the storage modulus and loss modulus of the filled elastomers made it possible to reveal the influence of the electric field on the Payne effect in electrorheological elastomers. The elastomer vulcanized in the electric field showed high values of electrorheological sensitivity, 250% for storage modulus and 1100% for loss modulus. It was shown, for the first time, that vulcanization of filled elastomers in the electric field leads to a significant decrease in the degree of crosslinking in the elastomer. This effect should be taken into account in the design of electroactive elastomeric materials.
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Affiliation(s)
- Alexander V. Agafonov
- Krestov Institute of Solution Chemistry, Russian Academy of Sciences, 153045 Ivanovo, Russia;
- Correspondence:
| | - Anton S. Kraev
- Krestov Institute of Solution Chemistry, Russian Academy of Sciences, 153045 Ivanovo, Russia;
| | - Alexander E. Baranchikov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia; (A.E.B.); (V.K.I.)
| | - Vladimir K. Ivanov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia; (A.E.B.); (V.K.I.)
- Higher School of Economics, National Research University, 101000 Moscow, Russia
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18
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Zhu L, Liu X, Wang X, Meng X. Evaluation of photocatalytic selectivity of Ag/Zn modified molecularly imprinted TiO 2 by multiwavelength measurement. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 703:134732. [PMID: 31767306 DOI: 10.1016/j.scitotenv.2019.134732] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 09/25/2019] [Accepted: 09/28/2019] [Indexed: 06/10/2023]
Abstract
In this paper, Ag/Zn-MIP-TiO2 was prepared by sol-gel method, and the imprinted molecule was ethyl p-hydroxybenzoate. To study the properties of the Ag/Zn-MIP-TiO2 on the photocatalytic activity, these factors were investigated: the effects of the dosage of Ag and Zn, the amount of imprinted molecules, the calcination temperature and time, then the capture of active substances. Besides, the selectivity of Ag/Zn-MIP-TiO2 was investigated in three aspects: UV-vis multi-wavelength spectral integral area change, specific group absorbance change and traditional reaction kinetic parameter change. The selectivity coefficients of the three angles are 8.55, 1.47 and 6.77. And the selectivity factors are 4.12, 1.02 and 4.81, indicating that Ag/Zn-MIP-TiO2 has high selectivity. Furthermore, its selectivity is not only for the specific characteristic groups on the target pollutants, but for the integrated target pollutants. From the perspective of materials, Ag/Zn-MIP-TiO2 is 100% anatase with a lower band gap and a larger specific surface area. As a molecularly imprinted polymer, the active sites on the surface make it have selective recognition function. The results of photocatalytic experiments are as follows: the optimum Ag and Zn ratio is Ti:Ag:Zn = 100:1:0.75 (molar ratio); the best molecular weight of imprint is Ti:MIP = 5:1; the finest calcination temperature is 500 °C; the optimum calcination time is 2 h; the removal rate of ethyl p-hydroxybenzoate degraded by photocatalysis for 2 h is 99.1%; the main active substance of the photocatalytic reaction is •OH.
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Affiliation(s)
- Lei Zhu
- School of Urban Construction, Wuhan University of Science and Technology, Wuhan, China.
| | - Xian Liu
- School of Urban Construction, Wuhan University of Science and Technology, Wuhan, China.
| | - Xun Wang
- School of Urban Construction, Wuhan University of Science and Technology, Wuhan, China.
| | - Xide Meng
- School of Urban Construction, Wuhan University of Science and Technology, Wuhan, China.
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19
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Yan J, Dong K, Zhang Y, Wang X, Aboalhassan AA, Yu J, Ding B. Multifunctional flexible membranes from sponge-like porous carbon nanofibers with high conductivity. Nat Commun 2019; 10:5584. [PMID: 31811181 PMCID: PMC6897989 DOI: 10.1038/s41467-019-13430-9] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 11/08/2019] [Indexed: 11/24/2022] Open
Abstract
Conductive porous carbon nanofibers are promising for environmental, energy, and catalysis applications. However, increasing their porosity and conductivity simultaneously remains challenging. Here we report chemical crosslinking electrospinning, a macro-micro dual-phase separation method, to synthesize continuous porous carbon nanofibers with ultrahigh porosity of >80% and outstanding conductivity of 980 S cm-1. With boric acid as the crosslinking agent, poly(tetrafluoroethylene) and poly(vinyl alcohol) are crosslinked together to form water-sol webs, which are then electrospun into fibrous films. After oxidation and pyrolysis, the as-spun fibers are converted into B-F-N triply doped porous carbon nanofibers with well-controlled macro-meso-micro pores and large surface areas of ~750 m2 g-1. The sponge-like porous carbon nanofibers with substantially reduced mass transfer resistances exhibit multifunction in terms of gas adsorption, sewage disposal, liquid storage, supercapacitors, and batteries. The reported approach allows green synthesis of high-performance porous carbon nanofibers as a new platform material for numerous applications.
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Affiliation(s)
- Jianhua Yan
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Textile, Donghua University, Shanghai, 201620, China
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai, 200051, China
| | - Keqi Dong
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Textile, Donghua University, Shanghai, 201620, China
| | - Yuanyuan Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Textile, Donghua University, Shanghai, 201620, China
| | - Xiao Wang
- College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
| | | | - Jianyong Yu
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai, 200051, China
| | - Bin Ding
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Textile, Donghua University, Shanghai, 201620, China.
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai, 200051, China.
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20
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Gritti F, Gilar M, Walter TH, Wyndham K. Retention loss of reversed-phase chromatographic columns using 100% aqueous mobile phases from fundamental insights to best practice. J Chromatogr A 2019; 1612:460662. [PMID: 31690460 DOI: 10.1016/j.chroma.2019.460662] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 10/23/2019] [Accepted: 10/27/2019] [Indexed: 10/25/2022]
Abstract
This work deals with experimental investigations pertaining to the impact of chemical (electrolyte concentration from 0 to 100 mM, dissolved nitrogen gas from 0 to 6.7 × 10-4 M in water; surface chemistry including hexylphenyl, polyphenyl, C30, C18, and C8; surface coverage in C18-bonded chains from 1.5 to 3.5 µmol/m2; presence of surface dopant), physical (hydrostatic pressure of water from 50 to 500 bar; temperature from 27 ∘C to 75 ∘C), and structural parameters (average pore size from 50 Å to 400 Å; pore connectivity) on the dewetting kinetics of water from the hydrophobic mesopores of particles packed in RPLC columns. The results are explained from physico-chemical viewpoints involving intrusion and extrusion Laplace pressures, advancing and receding contact angles, surface tension of water, vapor pressure of water, 3D reconstruction of the actual mesoporous structure, pore connectivity, and the hysteresis in nitrogen adsorption and desorption isotherm onto reversed-phase chromatographic materials. A model of water dewetting consistent with the observations and the physical interpretations is then proposed. Finally, the most relevant practical solutions (pressurizing the column in absence of flow, pore size enlargement, using phenyl-bonded phase, polar embedded or surface doped C18-bonded phases, reducing the C18 surface coverage, doping the silica surface, lengthening of the alkyl-bonded chains, applying low temperatures, purging and degassing the mobile phase with helium gas) are suggested in order to eliminate or at least minimize the retention loss of RPLC columns when using fully aqueous mobile phases.
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Affiliation(s)
- Fabrice Gritti
- Waters Corporation, Instrument/Core Research/Fundamental 34 Maple Street, Milford, MA, 01757, USA.
| | - Martin Gilar
- Waters Corporation, Instrument/Core Research/Fundamental 34 Maple Street, Milford, MA, 01757, USA
| | - Thomas H Walter
- Waters Corporation, Instrument/Core Research/Fundamental 34 Maple Street, Milford, MA, 01757, USA
| | - Kevin Wyndham
- Waters Corporation, Instrument/Core Research/Fundamental 34 Maple Street, Milford, MA, 01757, USA
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21
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Gritti F, Hlushkou D, Tallarek U. Faster dewetting of water from C8- than from C18-bonded silica particles used in reversed-phase liquid chromatography: Solving the paradox. J Chromatogr A 2019; 1602:253-265. [DOI: 10.1016/j.chroma.2019.05.041] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 05/20/2019] [Accepted: 05/22/2019] [Indexed: 10/26/2022]
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22
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Gritti F, Brousmiche D, Gilar M, Walter TH, Wyndham K. Kinetic mechanism of water dewetting from hydrophobic stationary phases utilized in liquid chromatography. J Chromatogr A 2019; 1596:41-53. [PMID: 30827699 DOI: 10.1016/j.chroma.2019.02.051] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 02/20/2019] [Accepted: 02/22/2019] [Indexed: 11/16/2022]
Abstract
An experimental protocol was designed to accurately measure the dewetting kinetics of aqueous mobile phases from reversed-phase liquid chromatography (RPLC) columns. The protocol enables the determination of the losses in the wetted surface area and internal pore volume (leading to undesirable retention losses) of RPLC columns as a function of the dewetting time. It is used to evaluate the impact of the buffer/salt concentration in water (0-100 mM), nitrogen concentration dissolved in water (0-6.7 × 10-4 M), column temperature (300-358 K), and of the internal structure (pore connectivity) of the stationary phase on the dewetting kinetics of various RPLC packing materials. From a fundamental viewpoint, the experimental facts demonstrate that dewetting kinetics are not solely driven by the pore size of the stationary phase and the contact angle with water. Temperature has a major influence on dewetting kinetics as it controls the nucleation rate of isolated water vapor bubbles over the entire mesoporous network. Additionally, the internal microstructure of the stationary phase (characterized by its internal porosity, pore size distribution, and pore connectivity) influences the rate at which the water vapor bubbles grow and coalesce in the entire particle volume. From a more practical viewpoint, the retention loss of RPLC columns due to water dewetting can be eliminated or at least minimized by (1) adjusting the surface and bonding chemistries to reduce the receding contact angle, (2) elevating the column outlet pressure, (3) operating at the lowest possible temperature, (4) minimizing the pore connectivity of the stationary phase (e.g., by increasing the degree of surface functionalization from C8 to C18-bonded phases), and (5) by degassing the aqueous mobile phase from any dissolved gases.
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Affiliation(s)
- Fabrice Gritti
- Waters Corporation, Instrument/Core Research/Fundamental, 34 Maple Street, Milford, MA 01757, USA.
| | - Darryl Brousmiche
- Waters Corporation, Instrument/Core Research/Fundamental, 34 Maple Street, Milford, MA 01757, USA
| | - Martin Gilar
- Waters Corporation, Instrument/Core Research/Fundamental, 34 Maple Street, Milford, MA 01757, USA
| | - Thomas H Walter
- Waters Corporation, Instrument/Core Research/Fundamental, 34 Maple Street, Milford, MA 01757, USA
| | - Kevin Wyndham
- Waters Corporation, Instrument/Core Research/Fundamental, 34 Maple Street, Milford, MA 01757, USA
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23
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Novel etched iron oxide mediated synthesis of 3D tremella-like mesoporous Fe/N co-doped graphene composite as a highly efficient platinum-free counter electrode in dye-sensitized solar cells. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.09.107] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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24
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Wu C, Chen L, Lou X, Ding M, Jia C. Fabrication of Cobalt-Nickel-Zinc Ternary Oxide Nanosheet and Applications for Supercapacitor Electrode. Front Chem 2018; 6:597. [PMID: 30555822 PMCID: PMC6281991 DOI: 10.3389/fchem.2018.00597] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Accepted: 11/15/2018] [Indexed: 11/13/2022] Open
Abstract
Mesoporous cobalt-nickel-zinc ternary oxide (CNZO) nanosheets grown on the nickel foam are prepared by a simple hydrothermal treatment and subsequent calcination process. The physical characterizations show that the as-obtained CNZO nanosheets possess the mesoporous structure and a high specific surface of 75.4 m2 g-1 has been achieved. When directly applied for the binder-free supercapacitor electrode for the first time, the nickel foam supported mesoporous CNZO nanosheet electrode exhibits an ultrahigh specific capacity about 1172.2 C g-1 at 1 A g-1. More significantly, an asymmetric supercapacitor based on the as-obtained CNZO positive electrode and an activated carbon negative electrode shows a high energy density of 84.2 Wh kg-1 at a power density of 374.8 W kg-1, with excellent cycle stability (keeps 78.8% capacitance retention and 100% coulombic efficiency after 2,500 cycles). The excellent supercapacitive properties suggest that the nickel foam supported CNZO nanosheet electrodes are promising for application as high-performance supercapacitor.
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Affiliation(s)
- Chun Wu
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, China
| | - Lei Chen
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, China
| | - Xuechun Lou
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, China
| | - Mei Ding
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, China
| | - Chuankun Jia
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, China.,Key Laboratory of Advanced Energy Materials Chemistry, Ministry of Education, Nankai University, Tianjin, China
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25
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Inferring pore connectivity from sorption hysteresis in multiscale porous media. J Colloid Interface Sci 2018; 532:118-127. [DOI: 10.1016/j.jcis.2018.07.095] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 07/21/2018] [Accepted: 07/23/2018] [Indexed: 11/20/2022]
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26
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Burratti L, Casalboni M, De Matteis F, Pizzoferrato R, Prosposito P. Polystyrene Opals Responsive to Methanol Vapors. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E1547. [PMID: 30154304 PMCID: PMC6165557 DOI: 10.3390/ma11091547] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 08/24/2018] [Accepted: 08/24/2018] [Indexed: 12/13/2022]
Abstract
Photonic crystals (PCs) show reflectance spectra depending on the geometrical structure of the crystal, the refractive index (neff), and the light incident angle, according to the Bragg-Snell law. Three-dimensional photonic crystals (3D-PCs) composed of polymeric sub-micrometer spheres, are arranged in an ordered face cubic centered (fcc) lattice and are good candidates for vapor sensing by exploiting changes of the reflectance spectra. We synthesized high quality polystyrene (PS) 3D-PCs, commonly called opals, with a filling factor f near to the ideal value of 0.74 and tested their optical response in the presence of different concentrations of methanol (MeOH) vapor. When methanol was present in the voids of the photonic crystals, the reflectance spectra experienced energy shifts. The concentration of methyl alcohol vapor can be inferred, due to a linear dependence of the reflectance band maximum wavelength as a function of the vapor concentration. We tested the reversibility of the process and the time stability of the system. A limit of detection (LOD) equal to 5% (v/v₀), where v was the volume of methanol and v₀ was the total volume of the solution (methanol and water), was estimated. A model related to capillary condensation for intermediate and high methanol concentrations was discussed. Moreover, a swelling process of the PS spheres was invoked to fully understand the unexpected energy shift found for very high methanol content.
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Affiliation(s)
- Luca Burratti
- Industrial Engineering Department, University of Rome "Tor Vergata", Via del Politecnico 1, 00133 Rome, Italy.
| | - Mauro Casalboni
- Industrial Engineering Department, University of Rome "Tor Vergata", Via del Politecnico 1, 00133 Rome, Italy.
- Centre of Regenerative Medicine, Centre of Regenerative Medicine of University of Rome "Tor Vergata", Via Montpellier 1, 00133 Rome, Italy.
- National Interuniversity Consortium of Materials Science and Technology (INSTM), University of Rome "Tor Vergata", 00133 Rome, Italy.
| | - Fabio De Matteis
- Industrial Engineering Department, University of Rome "Tor Vergata", Via del Politecnico 1, 00133 Rome, Italy.
- Centre of Regenerative Medicine, Centre of Regenerative Medicine of University of Rome "Tor Vergata", Via Montpellier 1, 00133 Rome, Italy.
- National Interuniversity Consortium of Materials Science and Technology (INSTM), University of Rome "Tor Vergata", 00133 Rome, Italy.
| | - Roberto Pizzoferrato
- Industrial Engineering Department, University of Rome "Tor Vergata", Via del Politecnico 1, 00133 Rome, Italy.
| | - Paolo Prosposito
- Industrial Engineering Department, University of Rome "Tor Vergata", Via del Politecnico 1, 00133 Rome, Italy.
- Centre of Regenerative Medicine, Centre of Regenerative Medicine of University of Rome "Tor Vergata", Via Montpellier 1, 00133 Rome, Italy.
- National Interuniversity Consortium of Materials Science and Technology (INSTM), University of Rome "Tor Vergata", 00133 Rome, Italy.
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Probing the Catalytic Efficiency of Supported Heteropoly Acids for Esterification: Effect of Weak Catalyst Support Interactions. J CHEM-NY 2018. [DOI: 10.1155/2018/7037461] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Supported heteropoly acids are an interesting class of solid acid catalysts which possess flexible structure and super acidic properties essentially required for the oil-based biodiesel production. In this study, a series of catalysts containing 25 wt.% of heteropolytungstate (HPW) supported on various clays or SiO2 were prepared, and their catalytic efficiency was evaluated for esterification of acetic acid with heptanol. The as-prepared catalysts were characterized by various techniques including FT-IR spectroscopy, thermogravimetric analysis, X-ray diffraction, scanning electron microscopy, and BET. The catalytic efficiency of both bulk and supported HPW catalysts for the esterification activity strongly depends on the type of support and amount of catalyst; the bulk HPW catalyst and the catalyst supported by kaolinite with 25 wt.% of HPW exhibited highest activity. In order to study the effect of temperature on conversion, all the catalysts were subjected to different reaction temperatures. It was revealed that esterification activity of both bulk and supported HPW catalysts strongly depends upon the temperature variations of the reaction. Besides, the effect of leaching of active sites on the catalysts performance for biodiesel production was also evaluated by inductively coupled plasma studies (ICP). The kaolinite-supported catalyst (25% HPW/kaolinite) demonstrated higher amount of leaching which is also confirmed by the significant decrease in its catalytic activity when it is used for the second time. However, the higher activity demonstrated by HPW/kaolinite maybe because of some homogeneous reaction indicating a weak catalyst support interaction (WCSI) resulting in the leaching of the catalyst during the test. Furthermore, the effects of other reaction variables such as catalyst loading and reaction time on the conversion of acetic acid were also studied.
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29
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He J, Gao T, Jiang T, Mu B, Suo Y, Zhang Z, Su J. Nonprecious Nanoalloys Embedded in N‐Enriched Mesoporous Carbons Derived from a Dual‐MOF as Highly Active Catalyst towards Oxygen Reduction Reaction. ChemistrySelect 2018. [DOI: 10.1002/slct.201801085] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jiaping He
- Department of Energy and Environmental Systems EngineeringZhejiang University of Science and Technology Hangzhou 310027, Zhejiang China
- Ningbo Institute of Materials Technology and EngineeringChinese Academy of Sciences Ningbo 315201, Zhejiang China
| | - Tianyuan Gao
- Ningbo Institute of Materials Technology and EngineeringChinese Academy of Sciences Ningbo 315201, Zhejiang China
| | - Tengyao Jiang
- Ningbo Institute of Materials Technology and EngineeringChinese Academy of Sciences Ningbo 315201, Zhejiang China
| | - Bin Mu
- Ningbo Institute of Materials Technology and EngineeringChinese Academy of Sciences Ningbo 315201, Zhejiang China
| | - Yange Suo
- Department of Energy and Environmental Systems EngineeringZhejiang University of Science and Technology Hangzhou 310027, Zhejiang China
| | - Zhiguo Zhang
- Department of Energy and Environmental Systems EngineeringZhejiang University of Science and Technology Hangzhou 310027, Zhejiang China
| | - Jianwei Su
- Ningbo Institute of Materials Technology and EngineeringChinese Academy of Sciences Ningbo 315201, Zhejiang China
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30
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Su J, Ge R, Jiang K, Dong Y, Hao F, Tian Z, Chen G, Chen L. Assembling Ultrasmall Copper-Doped Ruthenium Oxide Nanocrystals into Hollow Porous Polyhedra: Highly Robust Electrocatalysts for Oxygen Evolution in Acidic Media. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1801351. [PMID: 29870585 DOI: 10.1002/adma.201801351] [Citation(s) in RCA: 167] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 03/29/2018] [Indexed: 05/20/2023]
Abstract
Here, a facile and novel strategy for the preparation of Cu-doped RuO2 hollow porous polyhedra composed of ultrasmall nanocrystals through one-step annealing of a Ru-exchanged Cu-BTC derivative is reported. Owing to the optimized surface configuration and altered electronic structure, the prepared catalyst displays a remarkable oxygen evolution reaction (OER) performance with low overpotential of 188 mV at 10 mA cm-2 in acidic electrolyte, an ultralow Tafel slope of 43.96 mV dec-1 , and excellent stability in durability testing for 10 000 cycles, and continuous testing of 8 h at a current density of 10 mA cm-2 . Density functional theory calculations reveal that the highly unsaturated Ru sites on the high-index facets can be oxidized gradually and reduce the energy barrier of rate-determining steps. On the other hand, the Cu dopants can alter the electronic structures so as to further improve the intrinsic OER activity.
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Affiliation(s)
- Jianwei Su
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang, 315201, P. R. China
| | - Ruixiang Ge
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang, 315201, P. R. China
| | - Kemin Jiang
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang, 315201, P. R. China
| | - Yan Dong
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang, 315201, P. R. China
| | - Fei Hao
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang, 315201, P. R. China
| | - Ziqi Tian
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang, 315201, P. R. China
| | - Guoxin Chen
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang, 315201, P. R. China
| | - Liang Chen
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang, 315201, P. R. China
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31
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Wuamprakhon P, Krittayavathananon A, Ma N, Phattharasupakun N, Maihom T, Limtrakul J, Sawangphruk M. Layered manganese oxide nanosheets coated on N-doped graphene aerogel for hydrazine detection: Reaction mechanism investigated by in situ electrochemical X-ray absorption spectroscopy. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2017.12.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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32
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Liu Y, Sun J, Yuan J, Wang S, Ding Y, Wu Y, Gao C. A type of thiophene-bridged silica aerogel with a high adsorption capacity for organic solvents and oil pollutants. Inorg Chem Front 2018. [DOI: 10.1039/c8qi00360b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Thiophene-bridged silica aerogel was prepared from tetraethyl orthosilicate (TEOS) and 2,5-divinyltrimethoxysilanethiophene (DVTHP) through a facile sol–gel reaction and ambient pressure drying process.
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Affiliation(s)
- Yuetao Liu
- College of Chemical Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Jiawen Sun
- College of Chemical Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Junguo Yuan
- College of Chemical Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Shuai Wang
- College of Chemical Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Yu Ding
- College of Chemical Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Yumin Wu
- College of Chemical Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Chuanhui Gao
- College of Chemical Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
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33
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Leone VO, Pereira MC, Aquino SF, Oliveira LCA, Correa S, Ramalho TC, Gurgel LVA, Silva AC. Adsorption of diclofenac on a magnetic adsorbent based on maghemite: experimental and theoretical studies. NEW J CHEM 2018. [DOI: 10.1039/c7nj03214e] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Maghemite nanoparticles synthesized by one-pot synthesis adsorb diclofenac efficiently.
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Affiliation(s)
- V. O. Leone
- Departamento de Química
- Instituto de Ciências Exatas e Biológicas
- Universidade Federal de Ouro Preto
- 35400-000 Ouro Preto
- Brazil
| | - M. C. Pereira
- Instituto de Ciência, Engenharia e Tecnologia
- Universidade Federal dos Vales do Jequitinhonha e Mucuri
- 39803-371 Teófilo Otoni
- Brazil
| | - S. F. Aquino
- Departamento de Química
- Instituto de Ciências Exatas e Biológicas
- Universidade Federal de Ouro Preto
- 35400-000 Ouro Preto
- Brazil
| | - L. C. A. Oliveira
- Departamento de Química
- Universidade Federal de Minas Gerais
- 31270-090 Belo Horizonte
- Brazil
| | - S. Correa
- Departamento de Química
- Universidade Federal de Lavras
- 37200-000 Lavras
- Brazil
| | - T. C. Ramalho
- Departamento de Química
- Universidade Federal de Lavras
- 37200-000 Lavras
- Brazil
| | - L. V. A. Gurgel
- Departamento de Química
- Instituto de Ciências Exatas e Biológicas
- Universidade Federal de Ouro Preto
- 35400-000 Ouro Preto
- Brazil
| | - A. C. Silva
- Departamento de Química
- Instituto de Ciências Exatas e Biológicas
- Universidade Federal de Ouro Preto
- 35400-000 Ouro Preto
- Brazil
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34
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Su J, Yang Y, Xia G, Chen J, Jiang P, Chen Q. Ruthenium-cobalt nanoalloys encapsulated in nitrogen-doped graphene as active electrocatalysts for producing hydrogen in alkaline media. Nat Commun 2017; 8:14969. [PMID: 28440269 PMCID: PMC5413983 DOI: 10.1038/ncomms14969] [Citation(s) in RCA: 307] [Impact Index Per Article: 43.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Accepted: 02/17/2017] [Indexed: 12/25/2022] Open
Abstract
The scalable production of hydrogen could conveniently be realized by alkaline water electrolysis. Currently, the major challenge confronting hydrogen evolution reaction (HER) is lacking inexpensive alternatives to platinum-based electrocatalysts. Here we report a high-efficient and stable electrocatalyst composed of ruthenium and cobalt bimetallic nanoalloy encapsulated in nitrogen-doped graphene layers. The catalysts display remarkable performance with low overpotentials of only 28 and 218 mV at 10 and 100 mA cm−2, respectively, and excellent stability of 10,000 cycles. Ruthenium is the cheapest platinum-group metal and its amount in the catalyst is only 3.58 wt.%, showing the catalyst high activity at a very competitive price. Density functional theory calculations reveal that the introduction of ruthenium atoms into cobalt core can improve the efficiency of electron transfer from alloy core to graphene shell, beneficial for enhancing carbon–hydrogen bond, thereby lowing ΔGH* of HER. Ruthenium is the cheapest platinum-group metal, yet active hydrogen evolution catalysts with low amounts of ruthenium have yet to be designed. Here, the authors report the preparation of a ruthenium–cobalt nanoalloy and demonstrate its potential as an effective hydrogen evolution catalyst in basic media.
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Affiliation(s)
- Jianwei Su
- Hefei National Laboratory for Physical Science at Microscale, Department of Materials Science &Engineering &Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China, Hefei 230026, China
| | - Yang Yang
- Hefei National Laboratory for Physical Science at Microscale, Department of Materials Science &Engineering &Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China, Hefei 230026, China
| | - Guoliang Xia
- Hefei National Laboratory for Physical Science at Microscale, Department of Materials Science &Engineering &Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China, Hefei 230026, China
| | - Jitang Chen
- Hefei National Laboratory for Physical Science at Microscale, Department of Materials Science &Engineering &Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China, Hefei 230026, China
| | - Peng Jiang
- Hefei National Laboratory for Physical Science at Microscale, Department of Materials Science &Engineering &Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China, Hefei 230026, China
| | - Qianwang Chen
- Hefei National Laboratory for Physical Science at Microscale, Department of Materials Science &Engineering &Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China, Hefei 230026, China.,High Magnetic Field Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
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35
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Ahn J, Lim NY, Park JS, Choi Y, Jung JH. Fabrication of calix[4]arene-attached mesoporous ammonium molybdophosphate–silica hybrid and its application as an adsorbent for cesium ions. NEW J CHEM 2017. [DOI: 10.1039/c6nj03533g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The cesium cation is a common contaminant in medical and industrial products as well as in nuclear wastes, and it can present a serious risk to human health.
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Affiliation(s)
- Junho Ahn
- Department of Chemistry and Research Institute of Natural Science
- Gyeongsang National University
- Jinju
- Korea
| | - Na Young Lim
- Department of Chemistry and Research Institute of Natural Science
- Gyeongsang National University
- Jinju
- Korea
| | - Jeong Su Park
- Department of Chemistry and Research Institute of Natural Science
- Gyeongsang National University
- Jinju
- Korea
| | - Yeonweon Choi
- Department of Chemistry and Research Institute of Natural Science
- Gyeongsang National University
- Jinju
- Korea
| | - Jong Hwa Jung
- Department of Chemistry and Research Institute of Natural Science
- Gyeongsang National University
- Jinju
- Korea
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36
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Cychosz KA, Guillet-Nicolas R, García-Martínez J, Thommes M. Recent advances in the textural characterization of hierarchically structured nanoporous materials. Chem Soc Rev 2017; 46:389-414. [DOI: 10.1039/c6cs00391e] [Citation(s) in RCA: 603] [Impact Index Per Article: 86.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This review focuses on important aspects of applying physisorption for the pore structural characterization of hierarchical materials such as mesoporous zeolites.
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Affiliation(s)
| | | | - Javier García-Martínez
- University of Alicante
- Department of Inorganic Chemistry
- Campus de San Vicente del Raspeig
- Alicante
- Spain
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37
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Durá G, Budarin VL, Castro‐Osma JA, Shuttleworth PS, Quek SCZ, Clark JH, North M. Importance of Micropore–Mesopore Interfaces in Carbon Dioxide Capture by Carbon‐Based Materials. Angew Chem Int Ed Engl 2016; 55:9173-7. [DOI: 10.1002/anie.201602226] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 05/31/2016] [Indexed: 11/05/2022]
Affiliation(s)
- Gema Durá
- Green Chemistry Centre of ExcellenceDepartment of ChemistryThe University of York York YO10 5DD UK
| | - Vitaliy L. Budarin
- Green Chemistry Centre of ExcellenceDepartment of ChemistryThe University of York York YO10 5DD UK
| | - José A. Castro‐Osma
- Universidad de Castilla-La ManchaDepartamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA)Instituto Regional de Investigación Científica Aplicada-IRICA 13071 Ciudad Real Spain
| | - Peter S. Shuttleworth
- Departamento de Física de Polímeros, Elastómeros y Aplicaciones EnergéticasInstituto de Ciencia y Tecnología de Polímeros, CSIC c/Juan de la Cierva 3 28006 Madrid Spain
| | - Sophie C. Z. Quek
- Green Chemistry Centre of ExcellenceDepartment of ChemistryThe University of York York YO10 5DD UK
| | - James H. Clark
- Green Chemistry Centre of ExcellenceDepartment of ChemistryThe University of York York YO10 5DD UK
| | - Michael North
- Green Chemistry Centre of ExcellenceDepartment of ChemistryThe University of York York YO10 5DD UK
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38
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Durá G, Budarin VL, Castro‐Osma JA, Shuttleworth PS, Quek SCZ, Clark JH, North M. Importance of Micropore–Mesopore Interfaces in Carbon Dioxide Capture by Carbon‐Based Materials. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201602226] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Gema Durá
- Green Chemistry Centre of ExcellenceDepartment of ChemistryThe University of York York YO10 5DD UK
| | - Vitaliy L. Budarin
- Green Chemistry Centre of ExcellenceDepartment of ChemistryThe University of York York YO10 5DD UK
| | - José A. Castro‐Osma
- Universidad de Castilla-La ManchaDepartamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA)Instituto Regional de Investigación Científica Aplicada-IRICA 13071 Ciudad Real Spain
| | - Peter S. Shuttleworth
- Departamento de Física de Polímeros, Elastómeros y Aplicaciones EnergéticasInstituto de Ciencia y Tecnología de Polímeros, CSIC c/Juan de la Cierva 3 28006 Madrid Spain
| | - Sophie C. Z. Quek
- Green Chemistry Centre of ExcellenceDepartment of ChemistryThe University of York York YO10 5DD UK
| | - James H. Clark
- Green Chemistry Centre of ExcellenceDepartment of ChemistryThe University of York York YO10 5DD UK
| | - Michael North
- Green Chemistry Centre of ExcellenceDepartment of ChemistryThe University of York York YO10 5DD UK
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39
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Matadamas J, Alférez R, López R, Román G, Kornhauser I, Rojas F. Advanced and delayed filling or emptying of pore entities by vapor sorption or liquid intrusion in simulated porous networks. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2015.09.072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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40
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Hysteresis and scanning curves in linear arrays of mesopores with two cavities and three necks. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2015.08.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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41
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Gao J, Wang X, Zhang Y, Liu J, Lu Q, Chen M, Bai Y. Preparation and supercapacitive performance of nanosized manganese dioxide/ordered mesoporous carbon composites. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.01.205] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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42
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Wu C, Cai J, Zhu Y, Zhang K. Nanoforest of hierarchical core/shell CuO@NiCo2O4 nanowire heterostructure arrays on nickel foam for high-performance supercapacitors. RSC Adv 2016. [DOI: 10.1039/c6ra10033c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nickel foam-supported hierarchical core/shell CuO@NiCo2O4 nanowire heterostructure arrays with excellent supercapacitive performance are reported.
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Affiliation(s)
- Chun Wu
- Department of Mechanical and Biomedical Engineering
- City University of Hong Kong
- China
| | - Junjie Cai
- Department of Mechanical and Biomedical Engineering
- City University of Hong Kong
- China
| | - Ying Zhu
- Department of Mechanical and Biomedical Engineering
- City University of Hong Kong
- China
| | - Kaili Zhang
- Department of Mechanical and Biomedical Engineering
- City University of Hong Kong
- China
- Centre for Functional Photonics
- City University of Hong Kong
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43
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Wu C, Cai J, Zhang Q, Zhou X, Zhu Y, Shen PK, Zhang K. Hierarchical Mesoporous Zinc-Nickel-Cobalt Ternary Oxide Nanowire Arrays on Nickel Foam as High-Performance Electrodes for Supercapacitors. ACS APPLIED MATERIALS & INTERFACES 2015; 7:26512-21. [PMID: 26575957 DOI: 10.1021/acsami.5b07607] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Nickel foam supported hierarchical mesoporous Zn-Ni-Co ternary oxide (ZNCO) nanowire arrays are synthesized by a simple two-step approach including a hydrothermal method and subsequent calcination process and directly utilized for supercapacitive investigation for the first time. The nickel foam supported hierarchical mesoporous ZNCO nanowire arrays possess an ultrahigh specific capacitance value of 2481.8 F g(-1) at 1 A g(-1) and excellent rate capability of about 91.9% capacitance retention at 5 A g(-1). More importantly, an asymmetric supercapacitor with a high energy density (35.6 Wh kg(-1)) and remarkable cycle stability performance (94% capacitance retention over 3000 cycles) is assembled successfully by employing the ZNCO electrode as positive electrode and activated carbon as negative electrode. The remarkable electrochemical behaviors demonstrate that the nickel foam supported hierarchical mesoporous ZNCO nanowire array electrodes are highly desirable for application as advanced supercapacitor electrodes.
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Affiliation(s)
- Chun Wu
- Department of Mechanical and Biomedical Engineering, City University of Hong Kong , 83 Tat Chee Avenue, Hong Kong, China
| | - Junjie Cai
- Department of Mechanical and Biomedical Engineering, City University of Hong Kong , 83 Tat Chee Avenue, Hong Kong, China
| | - Qiaobao Zhang
- Department of Mechanical and Biomedical Engineering, City University of Hong Kong , 83 Tat Chee Avenue, Hong Kong, China
| | - Xiang Zhou
- Department of Mechanical and Biomedical Engineering, City University of Hong Kong , 83 Tat Chee Avenue, Hong Kong, China
| | - Ying Zhu
- Department of Mechanical and Biomedical Engineering, City University of Hong Kong , 83 Tat Chee Avenue, Hong Kong, China
| | - Pei Kang Shen
- Department of Physics and Engineering, Sun Yat-sen University , Guangzhou 510275, China
| | - Kaili Zhang
- Department of Mechanical and Biomedical Engineering, City University of Hong Kong , 83 Tat Chee Avenue, Hong Kong, China
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44
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Wu C, Cai J, Zhang Q, Zhou X, Zhu Y, Li L, Shen P, Zhang K. Direct growth of urchin-like ZnCo2O4 microspheres assembled from nanowires on nickel foam as high-performance electrodes for supercapacitors. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.04.079] [Citation(s) in RCA: 111] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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45
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Gao J, Wang X, Zhao Q, Zhang Y, Liu J. Synthesis and supercapacitive performance of three-dimensional cubic-ordered mesoporous carbons. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.01.177] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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46
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Sun C, Zhang F, Wang X, Cheng F. Facile Preparation of Ammonium Molybdophosphate/Al-MCM-41 Composite Material from Natural Clay and Its Use in Cesium Ion Adsorption. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500114] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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47
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Yao SH, Zheng ZH, Chen S, Shi ZL. Preparation, Characterization, Photocatalytic Activity of S and Ag co-Doped Mesoporous Titania Photocatalysts. CHINESE J CHEM PHYS 2014. [DOI: 10.1063/1674-0068/27/06/732-738] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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48
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Oxidation of Cyclohexene over Mesoporous Silica Pillared Clay Incorporated with Heteropoly Acid Prepared by Sol Gel Method. ACTA ACUST UNITED AC 2014. [DOI: 10.4028/www.scientific.net/amr.1064.71] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mesoporous silica pillared clay (SPC) materials with different contents of H4PMo11VO40 (PVMo) heteropoly acid were synthesized by introducingPVMo into clay interlayer template in an acidic suspension using sol–gel method. The results of the characterizations showed that PVMo was dispersed homogeneously in the encapsulated samples. The encapsulated materials exhibited good catalytic performance in oxidation of cyclohexene.
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49
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Yao S, Wang X, Guo M, Shi Z. Preparation and Photocatalytic Activity of Mesoporous TiO2Photocatalyst Co-doped with Fe and H3PW12O40. J CHIN CHEM SOC-TAIP 2014. [DOI: 10.1002/jccs.201400260] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Yue L, Li B, Ren Z, Wu N, Li X. Facile Synthesis of Copper-doped Mesoporous Silica Pillared Clay (Cu-MSPC) as a High-performance Catalyst for Hydroxylation of Benzene to Phenol. CHEM LETT 2014. [DOI: 10.1246/cl.140460] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Liwen Yue
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
| | - Baoshan Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
| | - Zhiming Ren
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
| | - Naijin Wu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
| | - Xuan Li
- The 153th Central Hospital of Chinese PLA
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