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Tantalum (Oxy)Nitride: Narrow Bandgap Photocatalysts for Solar Hydrogen Generation Review

Mu Xiao, Songcan Wang, Supphasin Thaweesak, Bin Luo, Lianzhou Wang

Engineering 2017, Volume 3, Issue 3,   Pages 365-378 doi: 10.1016/J.ENG.2017.03.019

Abstract: materials are a class of the most promising photocatalysts for solar water splitting because of their narrowThis paper also proposes future trends to explore in the research area of tantalum-based narrow bandgap

Keywords： Tantalum-based photocatalyst     Narrow bandgap     Water splitting     Hydrogen    

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Flow characteristics of single-phase flow in narrow annular channels

ZENG Heyi, SU Guanghui, JIA Dounan

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 466-470 doi: 10.1007/s11708-008-0101-7

Abstract: The characteristics of single-phase flow in narrow annular channels were analyzed and theoretical modeltheoretical calculation was performed to predict the flow characteristics for the developed flow in narrowIn addition, the gap size of narrow annuli has great impact upon the flow characteristics.more remarkable the effect of gap size upon friction coefficient during single-phase flowing through narrow

Keywords： narrow annuli     remarkable     mm     developed     friction    

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Calculations of narrow-band transimissities and the Planck mean absorption coefficients of real gasesusing line-by-line and statistical narrow-band models

Huaqiang CHU, Mingyan GU, Huaichun ZHOU, Fengshan LIU

Frontiers in Energy 2014, Volume 8, Issue 1,   Pages 41-48 doi: 10.1007/s11708-013-0292-4

Abstract: Narrow-band transmissivities in the spectral range of 150 to 9300 cm and at a uniform resolution of25 cm were calculated using the statistical narrow-band (SNB) model with the band parameters of SoufianiCalculations of narrow-band transmissivity were conducted for gas columns of different lengths and containingNarrow-band transmissivities calculated by the SNB model are in large relative error at many bands.

Keywords： transimissity     HITEMP     HITRAN     Planck mean absorption coefficients    

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Nucleate boiling in two types of vertical narrow channels

Lei GUO, Shusheng ZHANG, Lin CHENG

Frontiers in Energy 2011, Volume 5, Issue 3,   Pages 250-256 doi: 10.1007/s11708-010-0128-4

Abstract: To explore the mechanism of boiling bubble dynamics in narrow channels, we investigate 2-mm wide I- andof surface tension in boiling heat transfer is considerably more important than that of gravity in narrow

Keywords： nucleate boiling     narrow channel     numerical simulation     bubble dynamics    

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The horizontal distribution of a flight of steps when　the β-particles fly across the copper narrow slot

Zhu Yongqiang,Hao Jianyu

Strategic Study of CAE 2008, Volume 10, Issue 8,   Pages 81-86

Abstract: momentum to study the functional relationship between the particle number (n) and the width of the copper narrowslot (δ) when the particles fly across the copper narrow slots with different widths (thicknesstendency no matter what energy and momentum the β-particles have, and when they fly across the copper narrow

Keywords： the horizontal vibration of β-particles     the width of copper narrow slot     horizontal distribution of    

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Cyclic behavior of stiffened joints between concrete-filled steel tubular column and steel beam with narrow

Chunyan QUAN,Wei WANG,Jian ZHOU,Rong WANG

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 3,   Pages 333-344 doi: 10.1007/s11709-016-0357-7

Abstract: in practical engineering which was between concrete-filled steel tubular column and steel beam with narrowThere was no hysteresis damage fracture on the narrow outer diaphragm connected to the concrete-filled

Keywords： narrow outer diaphragm     concrete-filled tubular column     joint     inner and outer stiffening     cyclic behavior    

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Numerical investigation on the dryout point of annular flow in the upward narrow annuli with bilateral

SU Guanghui, QIU Suizheng, DUAN Feng, XIAO Zejun, HUANG Yanping

Frontiers in Energy 2007, Volume 1, Issue 3,   Pages 264-272 doi: 10.1007/s11708-007-0037-3

Abstract: three-fluid model has been developed to predict the dryout point of upward annular flow in vertical narrow
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Nongray radiation from gas and soot mixtures in planar plates based on statistical narrow-band spectral

Huaqiang CHU, Qiang CHENG, Huaichun ZHOU, Fengshan LIU

Frontiers in Energy 2011, Volume 5, Issue 2,   Pages 149-158 doi: 10.1007/s11708-010-0124-8

Abstract: Based on the statistical narrow-band (SNB) spectral model with an exponential-tailed inverse intensityThe effect of soot volume fraction up to 1×10 on the source term, the narrow-band radiation intensities

Keywords： soot     combustion     SNB model     nongray radiation    

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Controlling nested wrinkle morphology through the boundary effect on narrow-band thin films

Hanyang XU, Tielin SHI, Guanglan LIAO, Qi XIA

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 2,   Pages 235-240 doi: 10.1007/s11465-017-0458-6

Abstract: We describe the formation of nested wrinkles created by the thermal mismatch between a narrow-band thinWhen a film is described as “narrow-band”, it literally means that the film band width is much shorterA silicon mask was used during film sputtering to create narrow-band films on poly (dimethylsiloxane)

Keywords： nested and hierarchical wrinkles     morphology     amplitude saturation     boundary effect    

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Improvement in growth yield of single-walled carbon nanotubes with narrow chirality distribution by pulse

Bin Xu, Toshiro Kaneko, Toshiaki Kato

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 3,   Pages 485-492 doi: 10.1007/s11705-019-1831-2

Abstract: technique was developed for improving the growth yield of single-walled carbon nanotubes (SWNTs) with a narrowSWNTs could be improved by repetitive short duration pulse plasma CVD, while maintaining the initial narrowThe growth of SWNTs with a narrow chirality distribution could be controlled by the difference in the

Keywords： single-walled carbon nanotubes     chirality-controlled synthesis     pulse plasma chemical vapor deposition    

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Fluorene-based narrow-band-gap copolymers for red light-emitting diodes and bulk heterojunction photovoltaic

SUN Mingliang, WANG Li, XIA Yangjun, DU Bin, LIU Ransheng, CAO Yong

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 3,   Pages 257-264 doi: 10.1007/s11705-008-0052-x

Abstract: A series of narrow band-gap conjugated copolymers (PFO-DDQ) derived from 9,9-dioctylfluorene (DOF) andEfficient energy transfer due to exciton trapping on narrow-band-gap DDQ sites has been observed.

Keywords： simulator     Efficient     band-gap     PFO-DDQ50     intensity    

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Fabrication, modification and environmental applications of TiO

S. ROHANI, T. ISIMJAN, A. MOHAMED, H. KAZEMIAN, M. SALEM, T. WANG

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 1,   Pages 112-122 doi: 10.1007/s11705-011-1144-6

Abstract: Among the semiconductors, titanium dioxide has been identified as an effective photocatalyst due to its abundance, low cost, stability, and superior electronic energy band structure. Highly ordered nanotube arrays of titania were produced by anodization and mild sonication. The band gap energy of the titania nanotube arrays was reduced to 2.6 eV by co-doping with Fe, C, N atoms using an electrolyte solution containing K Fe(CN) . The photoconversion of phenol in a batch photoreactor increased to more than 18% based on the initial concentration of phenol by using a composite nanomaterial consisting of titania nanotube arrays and Pt/ZIF-8 nanoparticles. A layer-by-layer assembly technique for the deposition of titania nanoparticles was developed to fabricate air filters for the degradation of trace amounts of toluene in the air and preparation of superhyrophobic surfaces for oil-water separation and anti-corrosion surfaces.

Keywords： TiO2 nanotube arrays and nanoparticles     anodization     bandgap modification     layer-by-layer deposition    

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Novel strategies to tailor the photocatalytic activity of metal–organic frameworks for hydrogen generation: a mini-review

Luis A. ALFONSO-HERRERA, Leticia M. TORRES-MARTINEZ, J. Manuel MORA-HERNANDEZ

Frontiers in Energy 2022, Volume 16, Issue 5,   Pages 734-746 doi: 10.1007/s11708-022-0840-x

Abstract: This review provides a recompilation of the most important and recent strategies employed to increase the efficiency of metal–organic framework (MOF)-based systems toward the photocatalytic hydrogen evolution (PHE) reaction through specific strategies: tailoring the photocatalytic activity of bare MOFs and guest@MOF composites, formation of heterojunctions based on MOFs and various photocatalysts, and inorganic photocatalysts derived from MOFs. According to the data reported in this mini-review, the most effective strategy to improve the PHE of MOFs relies on modifying the linkers with new secondary building units (SBUs). Although several reviews have investigated the photocatalytic activity of MOFs from a general point of view, many of these studies relate this activity to the physicochemical and catalytic properties of MOFs. However, they did not consider the interactions between the components of the photocatalytic material. This study highlights the effects of strength of the supramolecular interactions on the photocatalytic performance of bare and MOF-based materials during PHE. A thorough review and comparison of the results established that metal–nanoparticle@MOF composites have weak van der Waals forces between components, whereas heterostructures only interact with MOFs at the surface of bare materials. Regarding material derivatives from MOFs, we found that pyrolysis destroyed some beneficial properties of MOFs for PHE. Thus, we conclude that adding SBUs to organic linkers is the most efficient strategy to perform the PHE because the SBUs added to the MOFs promote synergy between the two materials through strong coordination bonds.

Keywords： frameworks (MOFs)     photocatalytic hydrogen evolution     MOF heterojunctions     materials derived from MOFs     bandgap    

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An Internet of Energy Things Based on Wireless LPWAN

Yonghua Song,Jin Lin,Ming Tang,Shufeng Dong

Engineering 2017, Volume 3, Issue 4,   Pages 460-466 doi: 10.1016/J.ENG.2017.04.011

Abstract: Against this background, this paper briefly reviews the representative LPWAN technologies of narrow-band

Keywords： Low-power wide-area network     Internet of Things     Narrow-band Internet of Things     LoRa technology     Demand-side    

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Title Author Date Type Operation

Tantalum (Oxy)Nitride: Narrow Bandgap Photocatalysts for Solar Hydrogen Generation

Mu Xiao, Songcan Wang, Supphasin Thaweesak, Bin Luo, Lianzhou Wang

Journal Article

Flow characteristics of single-phase flow in narrow annular channels

ZENG Heyi, SU Guanghui, JIA Dounan

Journal Article

Calculations of narrow-band transimissities and the Planck mean absorption coefficients of real gasesusing line-by-line and statistical narrow-band models

Huaqiang CHU, Mingyan GU, Huaichun ZHOU, Fengshan LIU

Journal Article

Nucleate boiling in two types of vertical narrow channels

Lei GUO, Shusheng ZHANG, Lin CHENG

Journal Article

The horizontal distribution of a flight of steps when　the β-particles fly across the copper narrow slot

Zhu Yongqiang,Hao Jianyu

Journal Article

Cyclic behavior of stiffened joints between concrete-filled steel tubular column and steel beam with narrow

Chunyan QUAN,Wei WANG,Jian ZHOU,Rong WANG

Journal Article

Numerical investigation on the dryout point of annular flow in the upward narrow annuli with bilateral

SU Guanghui, QIU Suizheng, DUAN Feng, XIAO Zejun, HUANG Yanping

Journal Article

Nongray radiation from gas and soot mixtures in planar plates based on statistical narrow-band spectral

Huaqiang CHU, Qiang CHENG, Huaichun ZHOU, Fengshan LIU

Journal Article

Controlling nested wrinkle morphology through the boundary effect on narrow-band thin films

Hanyang XU, Tielin SHI, Guanglan LIAO, Qi XIA

Journal Article

Improvement in growth yield of single-walled carbon nanotubes with narrow chirality distribution by pulse

Bin Xu, Toshiro Kaneko, Toshiaki Kato

Journal Article

Fluorene-based narrow-band-gap copolymers for red light-emitting diodes and bulk heterojunction photovoltaic

SUN Mingliang, WANG Li, XIA Yangjun, DU Bin, LIU Ransheng, CAO Yong

Journal Article

Fabrication, modification and environmental applications of TiO

S. ROHANI, T. ISIMJAN, A. MOHAMED, H. KAZEMIAN, M. SALEM, T. WANG

Journal Article

Novel strategies to tailor the photocatalytic activity of metal–organic frameworks for hydrogen generation: a mini-review

Luis A. ALFONSO-HERRERA, Leticia M. TORRES-MARTINEZ, J. Manuel MORA-HERNANDEZ

Journal Article

An Internet of Energy Things Based on Wireless LPWAN

Yonghua Song,Jin Lin,Ming Tang,Shufeng Dong

Journal Article