Resource Type

Journal Article 519

Conference Videos 8

Year

2023 64

2022 46

2021 50

2020 52

2019 35

2018 36

2017 28

2016 28

2015 24

2014 21

2013 15

2012 14

2011 16

2010 11

2009 19

2008 16

2007 18

2006 5

2005 5

2004 3

open ︾

Keywords

response surface methodology 9

Response surface methodology 7

surface 7

adsorption 5

surface roughness 5

surface water 5

surface integrity 4

Carbon nanotube 3

Membrane fouling 3

2 2

Algae 2

Anaerobic digestion 2

Biodegradation 2

Biofilm 2

CO2 capture 2

Chitosan 2

Constructed wetland 2

Dam safety 2

Electron transfer 2

open ︾

Search scope:

排序： Display mode:

Cystine-assisted accumulation of gold nanoparticles on ZnO to construct a sensitive surface-enhancedRaman spectroscopy substrate

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 1,   Pages 15-23 doi: 10.1007/s11705-022-2177-8

Abstract: Recently, various semiconductor/metal composites have been developed to fabricate surface-enhanced Ramancomposite not only had a higher metal loading but also formed a porous structure, which is beneficial for RamanCompared with ZnO/Au, the ZnO/Au/cystine substrate displayed a 40-fold enhancement in the Raman signalThis study provided a promising method to fabricate sensitive semiconductor/noble metal-based surface-enhancedRaman spectroscopy substrates for Raman detection.

Keywords： biomineralization     cystine     semiconductor/metal composite     SERS detection     Raman detection    

HTML PDF Collect

V-shaped substrate for surface and volume enhanced Raman spectroscopic analysis of microplastics

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 11, doi: 10.1007/s11783-022-1578-8

Abstract:

● V-shaped substrate was obtained for SERS analysis of microplastics (diameter ≈ 1 μm).

Keywords： SERS     V-shaped     AAO     Microplastic     Atmospheric aerosol    

HTML PDF Collect

Ultra-Short Pulsed Laser Manufacturing and Surface Processing of Microdevices Review

Yongchao Yu, Shi Bai, Shutong Wang, Anming Hu

Engineering 2018, Volume 4, Issue 6,   Pages 779-786 doi: 10.1016/j.eng.2018.10.004

Abstract: Different surface treatments such as gold plating, reducedgraphene oxide (rGO) coating, and polyanilinemicrofluidic channels were developed by all-femtosecond-laser processing for real-time surfaceenhanced RamanThe processing mechanisms included laser ablation, laser reduction, and laser-induced surface nano-engineeringThese works demonstrate the attractive potential of ultra-short pulsed laser for surface precision manufacturing

Keywords： Ultra-short pulsed laser processing     Microdevices     Supercapacitor     Electronic tongue     Surface-enhanced Raman    

HTML PDF Collect

SERS nanoprobes for bio-application

Han-Wen Cheng,Jin Luo,Chuan-Jian Zhong

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 4,   Pages 428-441 doi: 10.1007/s11705-015-1536-0

Abstract: The ability to tune the size, shape, composition and surface properties impart nanoparticles with theExamples discussed in this article will focus on the nanoproble-enhanced colorimetric detection and surfaceenhanced Raman scattering (SERS) detection of biomarkers or biomolecules such as proteins and DNAs.

Keywords： surface-enhanced Raman scattering     functional nanoprobes     bio-conjugation     metal nanoparticles     magnetic    

HTML PDF Collect

Review: Tip-based vibrational spectroscopy for nanoscale analysis of emerging energy materials

Amun JARZEMBSKI, Cedric SHASKEY, Keunhan PARK

Frontiers in Energy 2018, Volume 12, Issue 1,   Pages 43-71 doi: 10.1007/s11708-018-0524-8

Abstract: Vibrational spectroscopy is one of the key instrumentations that provide non-invasive investigation of structural and chemical composition for both organic and inorganic materials. However, diffraction of light fundamentally limits the spatial resolution of far-field vibrational spectroscopy to roughly half the wavelength. In this article, we thoroughly review the integration of atomic force microscopy (AFM) with vibrational spectroscopy to enable the nanoscale characterization of emerging energy materials, which has not been possible with far-field optical techniques. The discussed methods utilize the AFM tip as a nanoscopic tool to extract spatially resolved electronic or molecular vibrational resonance spectra of a sample illuminated by a visible or infrared (IR) light source. The absorption of light by electrons or individual functional groups within molecules leads to changes in the sample’s thermal response, optical scattering, and atomic force interactions, all of which can be readily probed by an AFM tip. For example, photothermal induced resonance (PTIR) spectroscopy methods measure a sample’s local thermal expansion or temperature rise. Therefore, they use the AFM tip as a thermal detector to directly relate absorbed IR light to the thermal response of a sample. Optical scattering methods based on scanning near-field optical microscopy (SNOM) correlate the spectrum of scattered near-field light with molecular vibrational modes. More recently, photo-induced force microscopy (PiFM) has been developed to measure the change of the optical force gradient due to the light absorption by molecular vibrational resonances using AFM’s superb sensitivity in detecting tip-sample force interactions. Such recent efforts successfully breech the diffraction limit of light to provide nanoscale spatial resolution of vibrational spectroscopy, which will become a critical technique for characterizing novel energy materials.

Keywords： atomic force microscopy     photo-thermal induced resonance     scanning near-field optical microscopy     tip-enhancedRaman spectroscopy     photo-induced force microscopy     molecular resonances     surface phonon polaritons     energy    

HTML PDF Collect

Enhanced photocatalytic water splitting with surface defective SrTiO

Junying LIU, Zhidong WEI, Wenfeng SHANGGUAN

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 700-709 doi: 10.1007/s11708-021-0735-2

Abstract: Surface reconstructed SrTiO nanocrystals were synthesized by a thermal treatment process in presenceThe surface reconstruction of SrTiO nanocrystals is attributed to the introduction of surface oxygenThe light absorption and the charge transfer ability of SrTiO nanocrystals are simultaneously enhanceddue to surface oxygen vacancies or Ti sites (such as Ti and Ti ), which are beneficial to photocatalytic

Keywords： SrTiO3     surface reconstruction     oxygen vacancies     photocatalytic water splitting    

HTML PDF Collect

Chemical mapping of cement pastes by using confocal Raman spectroscopy

Fengjuan LIU,Zhihui SUN

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 2,   Pages 168-173 doi: 10.1007/s11709-015-0323-9

Abstract: on the hydration process of cement paste with water-to-cement ( / ) ratio of 0.60 was implemented by RamanEttringite was found to form on the surface of the unreacted particles, which was shown as a mixed zone

Keywords： chemical mapping     Raman spectroscopy     calcium silicates     calcium hydroxide     ettringite    

HTML PDF Collect

Enhanced production of laccase by

Wei SUN, Meiying XU, Chunyu XIA, Anhua LI, Guoping SUN

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 2,   Pages 200-210 doi: 10.1007/s11783-012-0457-0

Abstract: Optimal preferences and mutual interactions of the factors were then determined by the response surfaceThe enhanced production of laccase by is a new recovery strategy for MDW.

Keywords： laccase     Coriolus hirsutus     fractional factorial design     response surface method     molasses    

HTML PDF Collect

Construction of nitrogen-doped carbon cladding LiMnO film electrode with enhanced stability for electrochemically

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 2050-2060 doi: 10.1007/s11705-023-2343-7

Abstract: Reducing the dissolution of Mn from LiMn2O4 (LMO) and enhancing the stability of film electrodes are critical and challenging for Li+ ions selective extraction via electrochemically switched ion exchange technology. In this work, we prepared a nitrogen-doped carbon cladding LMO (C-N@LMO) by polymerization of polypyrrole and high-temperature annealing in the N2 gas to achieve the above purpose. The modified C-N@LMO film electrode exhibited lower Mn dissolution and better cyclic stability than the LMO film electrode. The dissolution ratio of Mn from the C-N@LMO film electrode decreased by 42% compared to the LMO film electrode after 10 cycles. The cladding layer not only acted as a protective layer but also functioned as a conductive shell, accelerating the migration rate of Li+ ions. The intercalation equilibrium time of the C-N@LMO film electrode reached within an hour during the extraction of Li+ ions, which was 33% less compared to the pure LMO film electrode. Meanwhile, the C-N@LMO film electrode retained evident selectivity toward Li+ ions, and the separation factor was 118.38 for Li+ toward Mg2+ in simulated brine. Therefore, the C-N@LMO film electrode would be a promising candidate for the recovery of Li+ ions from salt lakes.

Keywords： LiMn2O4     lithium extraction     surface coating     cyclic stability     Mn dissolution    

HTML PDF Collect

Flame-retardant properties of

Kumar Sai SMARAN, Rajashekar BADAM, Raman VEDARAJAN, Noriyoshi MATSUMI

Frontiers in Energy 2019, Volume 13, Issue 1,   Pages 163-171 doi: 10.1007/s11708-018-0554-2

Abstract: This paper focuses on the superiority of organic-inorganic hybrid ion-gel electrolytes for lithium-ion batteries (LiBs) over commercial electrolytes, such as 1 M LiPF in 1:1 ethylene carbonate (EC): dimethyl carbonate (DMC) {1 M LiPF -EC: DMC}, in terms of their flame susceptibility. These ion-gel electrolytes possess ionic liquid monomers, which are confined within the borosilicate or silicate matrices that are ideal for non-flammability. Naked flame tests confirm that the organic-inorganic hybrid electrolytes are less susceptible to flames, and these electrolytes do not suffer from a major loss in terms of weight. In addition, the hybrids are self-extinguishable. Therefore, these hybrids are only oxidized when subjected to a flame unlike other commercial electrolytes used in lithium-ion batteries. Supplementary analyses using differential scanning calorimetric studies reveal that the hybrids are glassy until the temperature reaches more than 100°C. The current results are consistent with previously published data on the organic-inorganic hybrids.

Keywords： inorganic polymeric borosilicate network     organic-inorganic hybrids     self-extinguishability     nonflammability     lithium batteries     flame-retardants    

HTML PDF Collect

Solar photovoltaic fed dual input LED lighting system with constant illumination control

Kinattingal SUNDARESWARAN,Kevin Ark KUMAR,Payyalore Raman VENKATESWARAN,Sankaran PALANI

Frontiers in Energy 2016, Volume 10, Issue 4,   Pages 473-478 doi: 10.1007/s11708-016-0420-z

Abstract: A dual input LED lighting scheme with constant illumination is proposed in this paper. The scheme employs a photovoltaic array as the first input and a battery as the second one. A microcontroller is programmed to operate a changeover switch as well as a DC-DC converter for uninterrupted and constant illumination in work place. The scheme is suitable for conference halls, laboratories, clean rooms, marriage halls, theaters, etc. The complete modeling, design and experimentation of the proposed scheme are explained and the economic viability of the scheme is justified.

Keywords： photovoltaic     LED light     dual input     P&O algorithm    

HTML PDF Collect

Enhanced solution to the surface–volume–surface EFIE for arbitrary metal–dielectric composite objects Research Article

Han WANG, Mingjie PANG, Hai LIN

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 7,   Pages 1098-1109 doi: 10.1631/FITEE.2100387

Abstract: The surface–volume–surface electric field (SVS-EFIE) can lead to complex equations, laborious implementationequation (GME) is proposed for electromagnetic scattering from arbitrary metal–dielectric s, and its enhancedParallelism can be easily applied in the enhanced solution.

Keywords： Composite object     Integral equation     Method of moments (MoM)     Addition theorem     Iterative method    

HTML PDF Collect

Ternary phase behavior of water microemulsified diesel-palm biodiesel

Nurul Atiqah Izzati MD ISHAK,Ismail Ab RAMAN,Mohd Ambar YARMO,Wan Mohd Faizal WAN MAHMOOD

Frontiers in Energy 2015, Volume 9, Issue 2,   Pages 162-169 doi: 10.1007/s11708-015-0355-9

Abstract: This paper aims to develop a new microemulsions system comprising diesel and palm oil methyl ester (PME) that have the potential to be used as alternative fuels for diesel engines. The water-in-diesel-biodiesel microemulsions were prepared by applying PME mixed with diesel, non-ionic surfactants, co-surfactants and water to make the water-in-oil (W/O) microemulsion system. This microemulsified fuel was achieved through low-energy microemulsification by using the constant composition method. The diesel used was mixed with four different concentrations of PME, i.e., 10% (w/w) (B10), 20% (w/w) (B20), 30% (w/w) (B30) and neat diesel (B0). The amount of water was fixed at 20% (w/w). The phase behavior of the water/mixed non-ionic surfactant/diesel-PME system were studied by constructing pseudoternary phase diagrams with the goal of formulating optimized systems. The results showed that the microemulsions were formed and stabilized with a mixture of non-ionic surfactants at a weight ratio of 80:20 at 20% (w/w), and with mixed co-surfactants at a weight ratio of 25:75, 20:80 and 10:90 for B0, B10, B20 and B30 respectively. The particle size, kinematic viscosity at 40°C, refractive index, density, heating value, cloud point, pour point and flash point of the selected water-in-diesel microemulsion were 19.40 nm (polydispersity of 0.12), 2.86 mm /s, 1.435, 0.8913 g/mL, 31.87 MJ/kg, 7.15°C, 10.5°C and 46.5°C respectively. The corresponding values of the water-in-diesel-PME selected were 20.72 nm to 23.74 nm, 13.02 mm /s to 13.29 mm /s, 1.442, 0.8939 g/mL to 0.8990 g/mL, 31.45 MJ/kg to 27.34 MJ/kg, 7.2°C to 6.8°C, 8.5°C to 1.5°C and 47.5°C to 52.0°C. These preliminary findings were further studied as potential fuels for diesel engines.

Keywords： palm methyl ester     palm oil biodiesel     microemulsion     water microemulsified fuels    

HTML PDF Collect

Large deflection behavior effect in reinforced concrete columns exposed to extreme dynamic loads

MUTALIB, Chunwei ZHANG, Javad MEHRMASHHADI, Sudharshan Naidu RAMAN, Roozbeh ALIPOUR, Tohid MOMENI, Mohamed

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 532-553 doi: 10.1007/s11709-020-0604-9

Abstract: percentage of the weight is columns which were not used to design to absorb large dynamic load like surface

Keywords： RC column     scaled distance     blast load     LS-DYNA    

HTML PDF Collect

Membrane Fouling Alleviation by Chemically Enhanced Backwashing in Treating Algae-Containing Surface Article

Xiaobin Tang, Tiecheng Guo, Haiqing Chang, Xiao Yue, Jinlong Wang, Haikuan Yu, Binghan Xie, Xuewu Zhu, Guibai Li, Heng Liang

Engineering 2022, Volume 19, Issue 12,   Pages 40-49 doi: 10.1016/j.eng.2021.01.013

Abstract: In this study, a simple and practical chemically enhanced backwashing (CEB) process was developed toof oxidization, thereby weakening the cohesive forces between the organic foulants and the membrane surfaceconsumption, and is proposed as an alternative to control membrane fouling in treating the algae-containing surface

Keywords： Ultrafiltration     Membrane fouling     Hydraulically irreversible membrane fouling     Chemically enhanced backwashing(CEB)     Algae-containing surface water    

HTML PDF Collect

Title Author Date Type Operation

Cystine-assisted accumulation of gold nanoparticles on ZnO to construct a sensitive surface-enhancedRaman spectroscopy substrate

Journal Article

V-shaped substrate for surface and volume enhanced Raman spectroscopic analysis of microplastics

Journal Article

Ultra-Short Pulsed Laser Manufacturing and Surface Processing of Microdevices

Yongchao Yu, Shi Bai, Shutong Wang, Anming Hu

Journal Article

SERS nanoprobes for bio-application

Han-Wen Cheng,Jin Luo,Chuan-Jian Zhong

Journal Article

Review: Tip-based vibrational spectroscopy for nanoscale analysis of emerging energy materials

Amun JARZEMBSKI, Cedric SHASKEY, Keunhan PARK

Journal Article

Enhanced photocatalytic water splitting with surface defective SrTiO

Junying LIU, Zhidong WEI, Wenfeng SHANGGUAN

Journal Article

Chemical mapping of cement pastes by using confocal Raman spectroscopy

Fengjuan LIU,Zhihui SUN

Journal Article

Enhanced production of laccase by

Wei SUN, Meiying XU, Chunyu XIA, Anhua LI, Guoping SUN

Journal Article

Construction of nitrogen-doped carbon cladding LiMnO film electrode with enhanced stability for electrochemically

Journal Article

Flame-retardant properties of

Kumar Sai SMARAN, Rajashekar BADAM, Raman VEDARAJAN, Noriyoshi MATSUMI

Journal Article

Solar photovoltaic fed dual input LED lighting system with constant illumination control

Kinattingal SUNDARESWARAN,Kevin Ark KUMAR,Payyalore Raman VENKATESWARAN,Sankaran PALANI

Journal Article

Enhanced solution to the surface–volume–surface EFIE for arbitrary metal–dielectric composite objects

Han WANG, Mingjie PANG, Hai LIN

Journal Article

Ternary phase behavior of water microemulsified diesel-palm biodiesel

Nurul Atiqah Izzati MD ISHAK,Ismail Ab RAMAN,Mohd Ambar YARMO,Wan Mohd Faizal WAN MAHMOOD

Journal Article

Large deflection behavior effect in reinforced concrete columns exposed to extreme dynamic loads

MUTALIB, Chunwei ZHANG, Javad MEHRMASHHADI, Sudharshan Naidu RAMAN, Roozbeh ALIPOUR, Tohid MOMENI, Mohamed

Journal Article

Membrane Fouling Alleviation by Chemically Enhanced Backwashing in Treating Algae-Containing Surface

Xiaobin Tang, Tiecheng Guo, Haiqing Chang, Xiao Yue, Jinlong Wang, Haikuan Yu, Binghan Xie, Xuewu Zhu, Guibai Li, Heng Liang

Journal Article