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Porous ultrathin-shell microcapsules designed by microfluidics for selective permeation and stimuli-triggered

Frontiers of Chemical Science and Engineering   Pages 1643-1650 doi: 10.1007/s11705-022-2201-z

Abstract: Generally, microcapsules with solid shells lack selective permeation and only exhibit a simple releasewater-in-oil-in-water double emulsions as templates and design porous ultrathin-shell microcapsules for selective permeationporous ultrathin-shell microcapsules exhibit excellent properties, including tunable size, selective permeation

Keywords： microcapsule     emulsion     microfluidics     selective permeation     stimuli-triggered release    

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Novel methods by using non-vacuum insulated tubing to extend the lifetime of the tubing

Chenglong ZHOU,Guojin ZHU,Yongxiang XU,Jifei YU,Xiaoliang ZHANG,Hongzhi SHENG

Frontiers in Energy 2015, Volume 9, Issue 2,   Pages 142-147 doi: 10.1007/s11708-015-0357-7

Abstract: The analysis of the failure mechanics, namely hydrogen permeation of vacuum insulated tubing (VIT), indicated

Keywords： vacuum insulated tubing     cyclic steam stimulation     insulation material     thermal conductivity     foam-glass     hydrogenpermeation    

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ethylene-co-vinyl alcohol) molecular weight and vinyl alcohol content on morphology, antifouling, and permeation

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1484-1502 doi: 10.1007/s11705-023-2331-y

Abstract: Various hydrophilic poly(ethylene-co-vinyl alcohol) (EVOH) were used herein to precisely control the structure and hydrodynamic properties of polysulfone (PSF) membranes. Particularly, to prepare pristine PSF and PSF/EVOH blends with increasing vinyl alcohol (VOH: 73%, 68%, 56%), the non-solvent-induced phase separation (NIPS) technique was used. Polyethylene glycol was used as a compatibilizer and as a porogen in N,N-dimethylacetamide. Rheological and ultrasonic separation kinetic measurements were also carried out to develop an ultrafiltration membrane mechanism. The extracted membrane properties and filtration capabilities were systematically compared to the proposed mechanism. Accordingly, the addition of EVOH led to an increase in the rheology of the dopes. The resulting membranes exhibited a microporous structure, while the finger-like structures became more evident with increasing VOH content. The PSF/EVOH behavior was changed from immediate to delayed segregation due to a change in the hydrodynamic kinetics. Interestingly, the PSF/EVOH32 membranes showed high hydrophilicity and achieved a pure water permeability of 264 L·m–2·h–1·bar–1, which was higher than that of pure PSF membranes (171 L·m–2·h–1·bar–1). In addition, PSF/EVOH32 rejected bovine serum albumin at a high rate (> 90%) and achieved a significant restoration of permeability. Finally, from the thermodynamic and hydrodynamic results, valuable insights into the selection of hydrophilic copolymers were provided to tailor the membrane structure while improving both the permeability and antifouling performance.

Keywords： polysulfone     blend modification     ultrafiltration membrane     formation hydrodynamics     poly(ethylene-co-vinyl alcohol) copolymer    

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A Predictive Instrument for Sensitive and Expedited Measurement of Ultra-Barrier Permeation Article

Jianfeng Wanyan, Kun Cao, Zhiping Chen, Yun Li, Chenxi Liu, Runqing Wu, Xiao-Dong Zhang, Rong Chen

Engineering 2021, Volume 7, Issue 10,   Pages 1461-1470 doi: 10.1016/j.eng.2021.02.017

Abstract: To detect trace amount of water vapor permeation through an ultra-barrier with extremely high sensitivityand a greatly reduced test period, a predictive instrument was developed by integrating permeation modelsAfter calibration, the lower detection limit for water vapor permeation is in the range of 10-7<permeation rate can be forecasted from non-steady-state results, thus enabling effective measurementof ultra-barrier permeation within a significantly shorter test period.

Keywords： Water vapor permeation     Ultra-barrier     Predictive model     Quadrupole mass spectrometer    

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Effect of PEG additives on properties and morphologies of polyetherimide membranes prepared by phase inversion

Jian CHEN, Jiding LI, Xia ZHAN, Xiaolong HAN, Cuixian CHEN,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 3,   Pages 300-306 doi: 10.1007/s11705-009-0280-8

Abstract: (ethylene glycol) (PEG) additive as a pore-former on the structure formation of membranes and their permeation

Keywords： permeation     ethylene     filtration     PEI/NMP/PEG     membrane    

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A systemic review of hydrogen supply chain in energy transition

Frontiers in Energy 2023, Volume 17, Issue 1,   Pages 102-122 doi: 10.1007/s11708-023-0861-0

Abstract: Targeting the net-zero emission (NZE) by 2050, the hydrogen industry is drastically developing in recentHowever, the technologies of hydrogen upstream production, midstream transportation and storage, andIn this paper, the development of hydrogen industry from the production, transportation and storage,In the upstream, blue hydrogen is dominating the current hydrogen supply, and an implementation of carbonTo achieve an economic feasibility, green hydrogen needs to reduce its cost by 75% to approximately 2

Keywords： hydrogen production     hydrogen transportation and storage     hydrogen economy     carbon capture and sequestration    

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Recent advances of small-molecule fluorescent probes for detecting biological hydrogen sulfide

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 1,   Pages 34-63 doi: 10.1007/s11705-021-2050-1

Abstract: Moreover, we also introduced some probes for hydrogen polysulfides.

Keywords： hydrogen sulfide     fluorescent probe     reducibility     nucleophilicity     copper sulfide precipitate     hydrogen    

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Production of hydrogen from fossil fuel: A review

Frontiers in Energy 2023, Volume 17, Issue 5,   Pages 585-610 doi: 10.1007/s11708-023-0886-4

Abstract: Production of hydrogen, one of the most promising alternative clean fuels, through catalytic conversionCatalytic conversion of natural gas into hydrogen and carbon is thermodynamically favorable under atmosphericHowever, using noble metals as a catalyst is costly for hydrogen production, thus mandating non-nobleThis paper reviews the various hydrogen production methods from fossil fuels through pyrolysis, partialoxidation, autothermal, and steam reforming, emphasizing the catalytic production of hydrogen via steam

Keywords： methane     catalytic conversion     natural gas     hydrogen production     CCUS    

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Organic conjugated polymers and polymer dots as photocatalysts for hydrogen production

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 667-677 doi: 10.1007/s11708-021-0767-7

Abstract: process large breadth of potential synthetic diversity are the representative of photocatalysts for hydrogenshowed a superior photocatalytic activity and a robust stability under visible-light irradiation, for hydrogenFinally, challenges and outlook on using organic polymer dots-based photocatalysts from hydrogen production

Keywords： polymer dots (Pdots)     photocatalysis     hydrogen production    

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The opportunity of membrane technology for hydrogen purification in the power to hydrogen (P2H) roadmap

Hiep Thuan Lu, Wen Li, Ehsan Soroodan Miandoab, Shinji Kanehashi, Guoping Hu

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 3,   Pages 464-482 doi: 10.1007/s11705-020-1983-0

Abstract: This can be achieved by converting the surplus renewable energy into hydrogen gas.effects on the pipelines and is a promising solution for hydrogen transportation and storage if theend-user purification technologies for hydrogen recovery from hydrogen enriched natural gas (HENG) areIn this review, promising membrane technologies for hydrogen separation is revisited and presented.purification in the power to hydrogen roadmap.

Keywords： power to hydrogen     membrane technology     hydrogen     energy    

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Development Strategy of Hydrogen Energy Industry in China

LingWen , Li Quansheng , Zhang Kai

Strategic Study of CAE 2022, Volume 24, Issue 3,   Pages 80-88 doi: 10.15302/J-SSCAE-2022.03.009

Abstract:

Hydrogen energy is crucial for building a clean, low-carbon, safe, andIn this article, we expound on the progress of global hydrogen energy industry and summarize the developmentstatus of China’s hydrogen energy industry from the aspects of scale, characteristics, and policiesThe demand for and problems of China’s hydrogen energy industry are analyzed.of the entire hydrogen energy industry chain, and enhance hydrogen technology innovation to achieve

Keywords： hydrogen energy industry     carbon neutralization     carbon peak     hydrogen production     hydrogen supply     hydrogen    

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Therapeutic application of hydrogen sulfide donors: the potential and challenges

Dan Wu,Qingxun Hu,Yizhun Zhu

Frontiers of Medicine 2016, Volume 10, Issue 1,   Pages 18-27 doi: 10.1007/s11684-015-0427-6

Abstract:

Hydrogen sulfide (H2S), a colorless gas smelling of rotten egg, has long been considered

Keywords： hydrogen sulfide     cardiovascular     cancer     hypertension    

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Approaching the commercial threshold of solar water splitting toward hydrogen by III-nitrides nanowires

Frontiers in Energy doi: 10.1007/s11708-023-0870-z

Abstract: Approaching the commercial threshold of solar water splitting toward hydrogen by III-nitrides nanowires

Keywords： threshold solar water     splitting hydrogen III    

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A mini-review of ferrites-based photocatalyst on application of hydrogen production

Frontiers in Energy 2021, Volume 15, Issue 3,   Pages 621-630 doi: 10.1007/s11708-021-0761-0

Abstract: Photocatalytic water splitting for hydrogen production is a promising strategy to produce renewable energysub>3N4 are also summarized to illustrate the advanced improvement in photocatalytic hydrogen

Keywords： photocatalyst     spinel-ferrite     composite     photocatalytic hydrogen production    

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Function-reversible facets enabling SrTiO nanocrystals for improved photocatalytic hydrogen evolution

Frontiers in Energy doi: 10.1007/s11708-023-0894-4

Abstract: In such cases, only one family of facets can be used for photocatalytic hydrogen evolution.paper proposed a strategy to achieve the full-facets-utilization of the nanocrystals for photocatalytic hydrogenfacets which were responsible for photooxidation reaction can be function-reversed for photocatalytic hydrogenThus, the full-facets-utilization led to a much-improved activity for photocatalytic hydrogen, in contrast

Keywords： SrTiO3 nanocrystals     crystal facets     photocatalysis     hydrogen evolution    

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Title Author Date Type Operation

Porous ultrathin-shell microcapsules designed by microfluidics for selective permeation and stimuli-triggered

Journal Article

Novel methods by using non-vacuum insulated tubing to extend the lifetime of the tubing

Chenglong ZHOU,Guojin ZHU,Yongxiang XU,Jifei YU,Xiaoliang ZHANG,Hongzhi SHENG

Journal Article

ethylene-co-vinyl alcohol) molecular weight and vinyl alcohol content on morphology, antifouling, and permeation

Journal Article

A Predictive Instrument for Sensitive and Expedited Measurement of Ultra-Barrier Permeation

Jianfeng Wanyan, Kun Cao, Zhiping Chen, Yun Li, Chenxi Liu, Runqing Wu, Xiao-Dong Zhang, Rong Chen

Journal Article

Effect of PEG additives on properties and morphologies of polyetherimide membranes prepared by phase inversion

Jian CHEN, Jiding LI, Xia ZHAN, Xiaolong HAN, Cuixian CHEN,

Journal Article

A systemic review of hydrogen supply chain in energy transition

Journal Article

Recent advances of small-molecule fluorescent probes for detecting biological hydrogen sulfide

Journal Article

Production of hydrogen from fossil fuel: A review

Journal Article

Organic conjugated polymers and polymer dots as photocatalysts for hydrogen production

Journal Article

The opportunity of membrane technology for hydrogen purification in the power to hydrogen (P2H) roadmap

Hiep Thuan Lu, Wen Li, Ehsan Soroodan Miandoab, Shinji Kanehashi, Guoping Hu

Journal Article

Development Strategy of Hydrogen Energy Industry in China

LingWen , Li Quansheng , Zhang Kai

Journal Article

Therapeutic application of hydrogen sulfide donors: the potential and challenges

Dan Wu,Qingxun Hu,Yizhun Zhu

Journal Article

Approaching the commercial threshold of solar water splitting toward hydrogen by III-nitrides nanowires

Journal Article

A mini-review of ferrites-based photocatalyst on application of hydrogen production

Journal Article

Function-reversible facets enabling SrTiO nanocrystals for improved photocatalytic hydrogen evolution

Journal Article