Resource Type

Journal Article 135

Conference Videos 1

Year

2023 16

2022 20

2021 11

2020 14

2019 10

2018 8

2017 8

2016 3

2015 3

2014 5

2013 4

2012 4

2011 6

2010 4

2009 5

2008 5

2007 5

2001 2

2000 1

open ︾

Keywords

photoelectron spectroscopy 4

DX pile 3

EXAFS 2

Fourier transform infrared spectroscopy 2

Fourier transform infrared spectroscopy (FTIR) 2

Free nitrous acid 2

Raman spectroscopy 2

extraction 2

mechanical properties 2

numerical analysis 2

-ECBM 1

1 1

16-3-16 1

3-propanediol 1

5-dimethylpyridine 1

In situ database 1

In situ pyrolysis 1

in-situ characterization 1

in situ test 1

open ︾

Search scope:

排序： Display mode:

Spin polarization strategy to deploy proton resource over atomic-level metal sites for highly selective CO electrolysis

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12,   Pages 1772-1781 doi: 10.1007/s11705-022-2197-4

Abstract: Unlocking of the extremely inert C=O bond during electrochemical CO2 reduction demands subtle regulation on a key “resource”, protons, necessary for intermediate conversion but also readily trapped in water splitting, which is still challenging for developing efficient single-atom catalysts limited by their structural simplicity usually incompetent to handle this task. Incorporation of extra functional units should be viable. Herein, a proton deployment strategy is demonstrated via “atomic and nanostructured iron (A/N-Fe) pairs”, comprising atomically dispersed iron active centers spin-polarized by nanostructured iron carbide ferromagnets, to boost the critical protonation steps. The as-designed catalyst displays a broad window (300 mV) for CO selectivity > 90% (98% maximum), even outperforming numerous cutting-edge M–N–C systems. The well-placed control of proton dynamics by A/N-Fe can promote *COOH/*CO formation and simultaneously suppress H2 evolution, benefiting from the magnetic-proximity-induced exchange splitting (spin polarization) that properly adjusts energy levels of the Fe sites’ d-shells, and further those of the adsorbed intermediates’ antibonding molecular orbitals.

Keywords： CO2 electrolysis     single-atom catalysts     spin polarization     proton dynamics     in situ IR spectroscopy     kinetic isotope effect    

HTML PDF Collect

Tracing the impact of stack configuration on interface resistances in reverse electrodialysis by in situelectrochemical impedance spectroscopy

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 4, doi: 10.1007/s11783-021-1480-9

Abstract:

• RED performance and stack resistance were studied by EIS and LSV.

Keywords： Reverse electrodialysis     Electrochemical impedance spectroscopy     Concentration polarization     Spacer shadow    

HTML PDF Collect

Establishing two-stage interaction between fly ash and NaOH by X-ray and infrared analyses

Bhagwanjee JHA,Nevin KOSHY,Devendra Narain SINGH

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 2,   Pages 216-221 doi: 10.1007/s11783-014-0630-8

Abstract: In this situation, resorting to Fourier transform-infrared radiation (FT-IR) spectroscopy on the residuesBased on extensive studies, it has been demonstrated that FT-IR spectroscopy is extremely useful for

Keywords： alkali activation     fly ash zeolites     X-ray diffraction (XRD) and Fourier transform-infrared radiation (FT-IR) spectroscopy    

HTML PDF Collect

The Interval Extension Assessment Method of Water Environmental Quality and Its Application

Hu Baoqing

Strategic Study of CAE 2001, Volume 3, Issue 6,   Pages 53-56

Abstract:

On the basis of IR distance this paper gives out IR extension assessment method and its application

Keywords： IR distance     IR correlative function     IR extension assessment    

HTML PDF Collect

Development and application of ex-situ presulfurization technology for hydrotreating catalysts in China

Yulan GAO, Xiangchen FANG, Zhenmin CHENG

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 287-296 doi: 10.1007/s11705-010-0529-2

Abstract: The development and application of ex-situ presulfurization (EPRES) technology for hydrotreating catalysts

Keywords： ex-situ presulfurization     in situ presulfurization     hydrotreating catalyst     sulfur utilization ratio    

HTML PDF Collect

Factors influencing near infrared spectroscopy analysis of agro-products: a review

Xiao XU, Lijuan XIE, Yibin YING

Frontiers of Agricultural Science and Engineering 2019, Volume 6, Issue 2,   Pages 105-115 doi: 10.15302/J-FASE-2019255

Abstract:

The near infrared (NIR) spectroscopy technique has wide applications in agriculture with the advantages

Keywords： agro-product     error source     influence factor     near infrared spectroscopy    

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 ofHowever, diffraction of light fundamentally limits the spatial resolution of far-field vibrational spectroscopyelectronic or molecular vibrational resonance spectra of a sample illuminated by a visible or infrared (IRFor example, photothermal induced resonance (PTIR) spectroscopy methods measure a sample’s local thermalTherefore, they use the AFM tip as a thermal detector to directly relate absorbed IR light to the thermal

Keywords： vibrational spectroscopy     atomic force microscopy     photo-thermal induced resonance     scanning near-fieldoptical microscopy     tip-enhanced Raman spectroscopy     photo-induced force microscopy     molecular resonances    

HTML PDF Collect

Terahertz time-domain spectroscopy of high-pressure flames

Jason BASSI, Mark STRINGER, Bob MILES, Yang ZHANG

Frontiers in Energy 2009, Volume 3, Issue 2,   Pages 123-133 doi: 10.1007/s11708-009-0033-x

Abstract: Laser spectroscopy in the visible and near infrared is widely used as a diagnostic tool for combustion

Keywords： terahertz time-domain spectroscopy     high-pressure flames     H2O absorption lines    

HTML PDF Collect

A Study About IC and IR in Principal-gent RelationshipUnder the Engineer Supervision Institution

Qin Xuan

Strategic Study of CAE 2007, Volume 9, Issue 4,   Pages 45-49

Abstract: principal-agent theory, the Incentive compatibility constraint(IC)and the participation constraint (IRdrawn:The incentive compatibility constraint (IC) is more important than participation constraint (IR

Keywords： supervision     employer     engineer     principal-gent     incentive compatibility constraint(IC)     participation constraint(IR    

HTML PDF Collect

Modeling of oil near-infrared spectroscopy based on similarity and transfer learning algorithm

Yifei Wang, Kai Wang, Zhao Zhou, Wenli Du

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 3,   Pages 599-607 doi: 10.1007/s11705-019-1807-2

Abstract: Near-infrared spectroscopy mainly reflects the frequency-doubled and total-frequency absorption informationIn order to achieve rapid modeling of near-infrared spectroscopy and based on historical data of different

Keywords： near-infrared spectroscopy     transfer learning     similarity     modeling    

HTML PDF Collect

Controlling the Reconstruction of Ni/CeO2 Catalyst during Reduction for Enhanced CO Methanation Article

Xinyu Cao,Tiancheng Pu,Bar Mosevitzky Lis,Israel E. Wachs,Chong Peng,Minghui Zhu,Yongkang Hu,

Engineering 2022, Volume 14, Issue 7,   Pages 94-99 doi: 10.1016/j.eng.2021.08.023

Abstract:

Reductive pretreatment is an important step for activating supported metal catalysts but has received little attention. In this study, reconstruction of the supported nickel catalyst was found to be sensitive to pretreatment conditions. In contrast to the traditional activation procedure in hydrogen, activating the catalyst in syngas created supported Ni nanoparticles with a polycrystalline structure containing an abundance of grain boundaries. The unique post-activation catalyst structure offered enhanced CO adsorption and an improved CO methanation rate. The current strategy to tune the catalyst structure via manipulating the activation conditions can potentially guide the rational design of other supported metal catalysts.

Keywords： Nickel–ceria catalyst     Catalyst activation     Crystallinity     Methanation     In situ spectroscopy    

HTML PDF Collect

Introducing scalable 1-bit full adders for designing quantum-dot cellular automata arithmetic circuits Research Article

Hamideh KHAJEHNASIR-JAHROMI, Pooya TORKZADEH, Massoud DOUSTI,p-torkzadeh@srbiau.ac.ir,h.khajehnasir@srbiau.ac.ir,m_dousti@srbiau.ac.ir

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 8,   Pages 1264-1276 doi: 10.1631/FITEE.2100287

Abstract: Designing logic circuits using complementary metal-oxide-semiconductor (CMOS) technology at the nano scale has been faced with various challenges recently. Undesirable leakage currents, the short-effect channel, and high energy dissipation are some of the concerns. represent an appropriate alternative for possible CMOS replacement in the future because it consumes an insignificant amount of energy compared to the standard CMOS. The key point of designing arithmetic circuits is based on the structure of a 1-bit . A low-complexity block is beneficial for developing various intricate structures. This paper represents scalable 1-bit QCA structures based on cell interaction. Our proposed s encompass preference aspects of QCA design, such as a low number of cells used, low latency, and small area occupation. Also, the proposed structures have been expanded to larger circuits, including a 4-bit , a 4-bit ripple borrow subtractor (RBS), an , and a 2-bit array . All designs were simulated and verified using QCA Designer-E version 2.2. This tool can estimate the energy dissipation as well as evaluate the performance of the circuits. Simulation results showed that the proposed designs are efficient in complexity, area, latency, cost, and energy dissipation.

Keywords： Quantum-dot cellular automata (QCA)     Full adder     Ripple carry adder (RCA)     Add/sub circuit     Multiplier    

HTML PDF Collect

Polyolefin-nanocomposites with special properties by in-situ polymerization

Walter Kaminsky

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 3,   Pages 555-563 doi: 10.1007/s11705-018-1715-x

Abstract:

Exceptionally strong polyolefin nanocomposites are synthesized by in-situ polymerization using

Keywords： polyolefin nanocomposites     metallocenes     methylaluminoxane    

HTML PDF Collect

Time of flight improved thermally grown oxide thickness measurement with terahertz spectroscopy

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0705-3

Abstract: As a nondestructive testing technique, terahertz time-domain spectroscopy technology is commonly used

Keywords： thermal barrier coatings     thermally grown oxide     terahertz spectroscopy     time of flight    

HTML PDF Collect

Cystine-assisted accumulation of gold nanoparticles on ZnO to construct a sensitive surface-enhanced Raman spectroscopy

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 Raman spectroscopyprovided a promising method to fabricate sensitive semiconductor/noble metal-based surface-enhanced Raman spectroscopy

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

HTML PDF Collect

Title Author Date Type Operation

Spin polarization strategy to deploy proton resource over atomic-level metal sites for highly selective CO electrolysis

Journal Article

Tracing the impact of stack configuration on interface resistances in reverse electrodialysis by in situelectrochemical impedance spectroscopy

Journal Article

Establishing two-stage interaction between fly ash and NaOH by X-ray and infrared analyses

Bhagwanjee JHA,Nevin KOSHY,Devendra Narain SINGH

Journal Article

The Interval Extension Assessment Method of Water Environmental Quality and Its Application

Hu Baoqing

Journal Article

Development and application of ex-situ presulfurization technology for hydrotreating catalysts in China

Yulan GAO, Xiangchen FANG, Zhenmin CHENG

Journal Article

Factors influencing near infrared spectroscopy analysis of agro-products: a review

Xiao XU, Lijuan XIE, Yibin YING

Journal Article

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

Amun JARZEMBSKI, Cedric SHASKEY, Keunhan PARK

Journal Article

Terahertz time-domain spectroscopy of high-pressure flames

Jason BASSI, Mark STRINGER, Bob MILES, Yang ZHANG

Journal Article

A Study About IC and IR in Principal-gent RelationshipUnder the Engineer Supervision Institution

Qin Xuan

Journal Article

Modeling of oil near-infrared spectroscopy based on similarity and transfer learning algorithm

Yifei Wang, Kai Wang, Zhao Zhou, Wenli Du

Journal Article

Controlling the Reconstruction of Ni/CeO2 Catalyst during Reduction for Enhanced CO Methanation

Xinyu Cao,Tiancheng Pu,Bar Mosevitzky Lis,Israel E. Wachs,Chong Peng,Minghui Zhu,Yongkang Hu,

Journal Article

Introducing scalable 1-bit full adders for designing quantum-dot cellular automata arithmetic circuits

Hamideh KHAJEHNASIR-JAHROMI, Pooya TORKZADEH, Massoud DOUSTI,p-torkzadeh@srbiau.ac.ir,h.khajehnasir@srbiau.ac.ir,m_dousti@srbiau.ac.ir

Journal Article

Polyolefin-nanocomposites with special properties by in-situ polymerization

Walter Kaminsky

Journal Article

Time of flight improved thermally grown oxide thickness measurement with terahertz spectroscopy

Journal Article

Cystine-assisted accumulation of gold nanoparticles on ZnO to construct a sensitive surface-enhanced Raman spectroscopy

Journal Article