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Progress in the Physisorption Characterization of Nanoporous Gas Storage Materials Review

Katie A. Cychosz,Matthias Thommes

Engineering 2018, Volume 4, Issue 4,   Pages 559-566 doi: 10.1016/j.eng.2018.06.001

Abstract:

Assessing the adsorption properties of nanoporous materials and determining their structural characterizationis critical for progressing the use of such materials for many applications, including gas storage.have been achieved both in the knowledge of the adsorption and phase behavior of fluids in ordered nanoporousfew important and central features of the underlying adsorption mechanisms of fluids in a variety of nanoporousmaterials with well-defined pore structure.

Keywords： Adsorption     Characterization     High-pressure adsorption     Nanoporous materials    

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Preparation of adsorptive nanoporous membrane using powder activated carbon: Isotherm and thermodynamic

Majid Peyravi

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 4,   Pages 673-687 doi: 10.1007/s11705-019-1800-9

Abstract: Adsorptive polyethesulfone (PES) membranes were prepared by intercalation of powder activated carbon (PAC) with and without functionalization. Accordingly, PAC was aminated with 1,5-diamino-2-methylpentane, and the physicochemical properties of the functionalized PAC were analyzed. Intercalation of PAC within the PES scaffold changed the porosity and mean pore size of the aminated membrane (AC-NH ) from 52.6% to 92.5% and from 22.6 nm to 3.5 nm, respectively. The effect of temperature on the performance of the modified membranes was monitored by the flux and chemical oxygen demand (COD) removal of leachate. At ambient temperature, the COD removal of the neat, AC-containing, and AC-NH membranes was 47%, 52%, and 58.5%, respectively. A similar increment was obtained for the membrane flux, which was due to the synergistic effect of the high porosity and large number of hydrophilic functional groups. The experimental leachate adsorption data were analyzed by Langmuir, Freundlich, and Dubinin- Radushkevich isotherm models. For all membranes, the significant thermodynamic parameters ( , , and ) were calculated and compared. The isosteric heat of adsorption was lower than 80 kJ∙mol , indicating that the interaction between the membranes and the leachate is mainly physical, involving weak van der Waals forces.

Keywords： amine functionality     nanoporous membrane     adsorption isotherm     thermodynamic parameters     landfill leachate    

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Largely reduced cross-plane thermal conductivity of nanoporous In

Dongchao XU, Quan WANG, Xuewang WU, Jie ZHU, Hongbo ZHAO, Bo XIAO, Xiaojia WANG, Xiaoliang WANG, Qing HAO

Frontiers in Energy 2018, Volume 12, Issue 1,   Pages 127-136 doi: 10.1007/s11708-018-0519-5

Abstract: In recent year, nanoporous Si thin films have been widely studied for their potential applications inAlong this line, a high thermoelectric figure of merit (ZT) is also anticipated for other nanoporousNumerous thermoelectric studies have been carried out on Si-based nanoporous thin films, whereas cost-effectiveIn this work, the cross-plane thermal conductivities of nanoporous In Ga N thin films with varied porousIn contrast to previous studies using dry-etched nanopores with amorphous pore edges, the measured nanoporous

Keywords： nanoporous film     thermoelectrics     phonon     mean free path     diffusive scattering    

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Transport in Nanoporous Media

Weiyao Zhu,Bin Pan,Zhen Chen,Wengang Bu,Qipeng Ma,Kai Liu,Ming Yue

Engineering 2024, Volume 32, Issue 1,   Pages 139-152 doi: 10.1016/j.eng.2023.05.014

Abstract:

Fluid flow at nanoscale is closely related to many areas in nature and technology, e.g., unconventional hydrocarbon recovery, carbon dioxide geo-storage, underground hydrocarbon storage, fuel cells, ocean desalination and biomedicine. At nanoscale, interfacial forces dominate over bulk forces, and nonlinear effects are important, which significantly deviate from conventional theory. During the past decades, a series of experiments, theory and simulations have been performed to investigate fluid flow at nanoscale, which has advanced our fundamental knowledge of this topic. However, a critical review is still lacking, which has seriously limited the basic understanding of this area. Therefore herein, we systematically review experimental, theoretical and simulation works on single- and multi- phases fluid flow at nanoscale. We also clearly point out the current research gaps and future outlook. These insights will promote the significant development of nonlinear flow physics at nanoscale and will provide crucial guidance on the relevant areas.

Keywords： Transport in nanoporous media     Multi-phase fluid dynamics     Nonlinear flow mechanisms     Nonlinear flow conservation    

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Building a Highly Stable Ultrathin Nanoporous Layer Assisted by Glucose for Desalination Article

Yanqiu Zhang, Fan Yang, Hongguang Sun, Yongping Bai, Songwei Li, Lu Shao

Engineering 2022, Volume 16, Issue 9,   Pages 247-255 doi: 10.1016/j.eng.2020.06.033

Abstract:

Although nanoporous membranes are of great interest in desalination, it is still challenging to constructhighly permeable nanoporous membranes with excellent rejections for an efficient desalination processIn this work, highly permeable nanoporous membranes were built from renewable resources, assisted byThe designed membrane materials and architecture open a new door to biopolymer-based separation membranesbeyond existing membrane materials.

Keywords： Nanoporous membrane     Renewable resources     Nanofiltration     Desalination     Glucose    

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Overcoming oral insulin delivery barriers: application of cell penetrating peptide and silica-based nanoporous

Huining HE, Junxiao YE, Jianyong SHENG, Jianxin WANG, Yongzhuo HUANG, Guanyi CHEN, Jingkang WANG, Victor C YANG

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 1,   Pages 9-19 doi: 10.1007/s11705-013-1306-9

Abstract: Oral insulin delivery has received the most attention in insulin formulations due to its high patient compliance and, more importantly, to its potential to mimic the physiologic insulin secretion seen in non-diabetic individuals. However, oral insulin delivery has two major limitations: the enzymatic barrier that leads to rapid insulin degradation, and the mucosal barrier that limits insulin’s bioavailability. Several approaches have been actively pursued to circumvent the enzyme barrier, with some of them receiving promising results. Yet, thus far there has been no major success in overcoming the mucosal barrier, which is the main cause in undercutting insulin’s oral bioavailability. In this review of our group’s research, an innovative silica-based, mucoadhesive oral insulin formulation with encapsulated-insulin/cell penetrating peptide (CPP) to overcome both enzyme and mucosal barriers is discussed, and the preliminary and convincing results to confirm the plausibility of this oral insulin delivery system are reviewed. In vitro studies demonstrated that the CPP-insulin conjugates could facilitate cellular uptake of insulin while keeping insulin’s biologic functions intact. It was also confirmed that low molecular weight protamine (LMWP) behaves like a CPP peptide, with a cell translocation potency equivalent to that of the widely studied TAT. The mucoadhesive properties of the produced silica-chitosan composites could be controlled by varying both the pH and composition; the composite consisting of chitosan (25 wt-%) and silica (75 wt-%) exhibited the greatest mucoadhesion at gastric pH. Furthermore, drug release from the composite network could also be regulated by altering the chitosan content. Overall, the universal applicability of those technologies could lead to development of a generic platform for oral delivery of many other bioactive compounds, especially for peptide or protein drugs which inevitably encounter the poor bioavailability issues.

Keywords： insulin     cell penetrating peptide     mucoadhesive composites     oral delivery    

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Preparation of Nanoporous Carbonaceous Promoters for Enhanced CO2 Absorption in Tertiary Amines Review

Masood S. Alivand, Omid Mazaheri, Yue Wu, Geoffrey W. Stevens, Colin A. Scholes, Kathryn A. Mumford

Engineering 2020, Volume 6, Issue 12,   Pages 1381-1394 doi: 10.1016/j.eng.2020.05.004

Abstract: Here, a series of novel nanoporous carbonaceous promoters (NCPs) with different properties were synthesized

Keywords： CO2 absorption Nanofluid     N     N-diethylethanolamine     Nanoporous carbonaceous promoters     Polyamine    

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Hierarchically porous zeolites synthesized with carbon materials as templates

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 6,   Pages 1444-1461 doi: 10.1007/s11705-021-2090-6

Abstract: From both industrial and scientific perspectives, different carbon materials have been widely employedIn this review, the progress in synthetic strategies using carbon materials as templates is comprehensivelyDirect templates methods, by which the carbon materials are directly mixed with precursors gel as hard

Keywords： hierarchical zeolites     carbon materials     direct templates     indirect templates     carbon-silica composites    

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Influence of envelope insulation materials on building energy consumption

Junlan YANG, Jiabao TANG

Frontiers in Energy 2017, Volume 11, Issue 4,   Pages 575-581 doi: 10.1007/s11708-017-0473-7

Abstract: In this paper, the influence of different external wall insulation materials on the energy consumptionThree types of insulation materials commonly used in Germany including mineral fiber, polyurethane, andenergy analysis model is established to clarify the primary energy use for production of the insulation materialsThe ascending order of the total energy consumption of the three materials is mineral fiber, polyurethaneHowever, the optimum insulation thicknesses for the three insulation materials show a verse order at

Keywords： building envelope     insulation materials     energy consumption     payback time    

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Emerging electrochemical processes for materials recovery from wastewater: Mechanisms and prospects

Lingchen Kong, Xitong Liu

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 5, doi: 10.1007/s11783-020-1269-2

Abstract: Abstract • Mechanisms for selective recovery of materials in electrochemical processes are discussed. • Wastewaters that contain recoverable materials are reviewed. • Application prospects are discussedRecovering valuable materials from waste streams is critical to the transition to a circular economyMunicipal and industrial wastewaters contain a variety of materials, such as nutrients (nitrogen andWe highlight the mechanisms for achieving selective materials recovery in these processes.

Keywords： Materials recovery     Electrosorption     Capacitive deionization     Redox processes     Electrochemical precipitation    

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Promoting hydrogen industry with high-capacity Mg-based solid-state hydrogen storage materials and systems

Frontiers in Energy 2023, Volume 17, Issue 3,   Pages 320-323 doi: 10.1007/s11708-023-0889-1

Abstract: Promoting hydrogen industry with high-capacity Mg-based solid-state hydrogen storage materials and systems

Keywords： materials systems    

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Advanced materials: adsorbent and catalyst for environmental application

Junhua LI, Shubo DENG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3,   Pages 301-301 doi: 10.1007/s11783-013-0529-9

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Recycling Materials from Waste Electrical and Electronic Equipment

Jinhui Li

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 5, doi: 10.1007/s11783-017-1001-z

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Preface to special issue on “Advanced Materials and Catalysis”

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 6,   Pages 1357-1359 doi: 10.1007/s11705-021-2119-x

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Effect of graphene and its derivatives on thermo-mechanical properties of phase change materials and

Frontiers in Energy 2022, Volume 16, Issue 2,   Pages 150-186 doi: 10.1007/s11708-021-0795-3

Abstract: Phase change materials (PCMs) play a leading role in overcoming the growing need of advanced thermal

Keywords： phase change materials (PCMs)     graphene     thermal conductivity     characterization    

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Title Author Date Type Operation

Progress in the Physisorption Characterization of Nanoporous Gas Storage Materials

Katie A. Cychosz,Matthias Thommes

Journal Article

Preparation of adsorptive nanoporous membrane using powder activated carbon: Isotherm and thermodynamic

Majid Peyravi

Journal Article

Largely reduced cross-plane thermal conductivity of nanoporous In

Dongchao XU, Quan WANG, Xuewang WU, Jie ZHU, Hongbo ZHAO, Bo XIAO, Xiaojia WANG, Xiaoliang WANG, Qing HAO

Journal Article

Transport in Nanoporous Media

Weiyao Zhu,Bin Pan,Zhen Chen,Wengang Bu,Qipeng Ma,Kai Liu,Ming Yue

Journal Article

Building a Highly Stable Ultrathin Nanoporous Layer Assisted by Glucose for Desalination

Yanqiu Zhang, Fan Yang, Hongguang Sun, Yongping Bai, Songwei Li, Lu Shao

Journal Article

Overcoming oral insulin delivery barriers: application of cell penetrating peptide and silica-based nanoporous

Huining HE, Junxiao YE, Jianyong SHENG, Jianxin WANG, Yongzhuo HUANG, Guanyi CHEN, Jingkang WANG, Victor C YANG

Journal Article

Preparation of Nanoporous Carbonaceous Promoters for Enhanced CO2 Absorption in Tertiary Amines

Masood S. Alivand, Omid Mazaheri, Yue Wu, Geoffrey W. Stevens, Colin A. Scholes, Kathryn A. Mumford

Journal Article

Hierarchically porous zeolites synthesized with carbon materials as templates

Journal Article

Influence of envelope insulation materials on building energy consumption

Junlan YANG, Jiabao TANG

Journal Article

Emerging electrochemical processes for materials recovery from wastewater: Mechanisms and prospects

Lingchen Kong, Xitong Liu

Journal Article

Promoting hydrogen industry with high-capacity Mg-based solid-state hydrogen storage materials and systems

Journal Article

Advanced materials: adsorbent and catalyst for environmental application

Junhua LI, Shubo DENG

Journal Article

Recycling Materials from Waste Electrical and Electronic Equipment

Jinhui Li

Journal Article

Preface to special issue on “Advanced Materials and Catalysis”

Journal Article

Effect of graphene and its derivatives on thermo-mechanical properties of phase change materials and

Journal Article