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Clean production of lactic acid by selective carbon-carbon bond cleavage of biomass feedstock over a novel carbon-bismuth oxychloride photocatalyst

Frontiers of Chemical Science and Engineering 2024, Volume 18, Issue 2, doi: 10.1007/s11705-023-2380-2

Abstract: A facile biomass-assisted solvothermal fabrication of carbon/bismuth oxychloride nanocomposites (C/BiOClCompared with BiOCl and C/BiOCl-120, C/BiOCl-180 exhibited higher crystallinity, wider visible lightFor the selective C–C bond cleavage of biomass-based feedstocks photocatalyzed by C/BiOCl-180, the xyloseC/BiOCl-180 efficiently converted different biomass-based monosaccharides to lactic acid, and the efficiencyThe use of biomass-derived monosaccharides for the clean production of lactic acid via the C/BiOCl-180

Keywords： carbon-carbon bond cleavage     biomass reforming     C/BiOCl     lactic acid     photocatalysis    

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ZnFe2O4 deposited on BiOCl with exposed (001) and (010) facets for photocatalytic

Guixian Song, Xionggang Wu, Feng Xin, Xiaohong Yin

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 2,   Pages 197-204 doi: 10.1007/s11705-016-1606-y

Abstract: ZnFe O -BiOCl composites were prepared by both hydrothermal and direct precipitation processes and theThe photocatalytic CO reduction activities over the hydrothermally prepared ZnFe O -BiOCl compositesnanoparticles in the hydrothermal sample were smaller and more uniformly distributed on the surface of BiOClHigher CF and CH yields were obtained for the pure BiOCl and BiOCl composite samples with more exposedThe mechanism for the photocatalytic reduction of CO in cyclohexanol over ZnFe O -BiOCl composites with

Keywords： reduction of CO2     cyclohexanol     ZnFe2O4 deposited BiOCl     facet     composite    

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Valveless pumping using a two-stage impedance pump

C.-C. LEE, Y. A. ABAKR, K.-C. WOO

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 3,   Pages 311-318 doi: 10.1007/s11465-013-0270-x

Abstract:

Impedance pump is defined as a type of valveless pumping mechanism, where an elastic tube is joined with a tube of different impedance, a periodic asymmetrical compression on part of the elastic tube will produce a unidirectional flow. Numerical and experimental studies had been conducted in the past, but little experimental work was found to exploit the principle of multi-stage impedance pumping for fluid transportation. This paper concentrates on the fluid behavior for an open-loop two-stage system experimentally. The aim of this work is to have an insight on the deliverable head and pumping rate of an open-loop two-stage impedance pumping system. This paper generally investigates the effect of different parameters towards the generation of unidirectional flows and composite flow of two opposite directions. Results obtained are of significant values.

Keywords： valveless pumping     open-loop     two-stage     unidirectional     composite    

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Bioinspired C/TiO

Jian LI, Likun GAO, Wentao GAN

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 4,   Pages 459-464 doi: 10.15302/J-FASE-2017178

Abstract: Hierarchical structures of -carbon-TiO (PP-C-TiO ) were confirmed by SEM observations.Furthermore, the conduction and valence bands of the PP-C-TiO are more negative than the correspondingThat is, the presence of C originating from wings in the PP-C-TiO could extend the photoresponsiveness

Keywords： bioinspired     butterfly wings     C/TiO2     photocatalyst     visible light    

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Design of GPRS Data Terminal Based on S3C2410

Sun Xueyong

Strategic Study of CAE 2007, Volume 9, Issue 12,   Pages 94-96

Abstract: hardware structure and working process of the embedded Internetconnected platform, which regards S3C2410

Keywords： GPRS；embedded Internet；S3C2410；SIM100-E    

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Antithrombin deficiency and decreased protein C activity in a young man with venous thromboembolism:

Dong Wang, Min Tian, Guanglin Cui, Dao Wen Wang

Frontiers of Medicine 2018, Volume 12, Issue 3,   Pages 319-323 doi: 10.1007/s11684-017-0553-4

Abstract:

Antithrombin and protein C are two crucial members in the anticoagulant system and play importantrevealed that the patient presented type I antithrombin deficiency combined with decreased protein Cactivity resulting from a small insertion mutation c.848_849insGATGT in and a short deletion variantc.572_574delAGA in .This study demonstrates that the combination of antithrombin deficiency and decreased protein C activity

Keywords： antithrombin deficiency     protein C activity     mutation     variant     venous thromboembolism     anticoagulants    

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Atomistic simulations of plasma catalytic processes

Erik C. Neyts

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1,   Pages 145-154 doi: 10.1007/s11705-017-1674-7

Abstract: There is currently a growing interest in the realisation and optimization of hybrid plasma/catalyst systems for a multitude of applications, ranging from nanotechnology to environmental chemistry. In spite of this interest, there is, however, a lack in fundamental understanding of the underlying processes in such systems. While a lot of experimental research is already being carried out to gain this understanding, only recently the first simulations have appeared in the literature. In this contribution, an overview is presented on atomic scale simulations of plasma catalytic processes as carried out in our group. In particular, this contribution focusses on plasma-assisted catalyzed carbon nanostructure growth, and plasma catalysis for greenhouse gas conversion. Attention is paid to what can routinely be done, and where challenges persist.

Keywords： atomic scale simulation     plasma-catalyst    

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Highly efficient and active Co–N–C catalysts for oxygen reduction and Zn–air batteries

Frontiers in Energy 2024, Volume 18, Issue 4,   Pages 436-446 doi: 10.1007/s11708-024-0928-6

Abstract: Lewis doping approach of polyaniline (PANI) was employed to fabricate cobait–nitrogen–carbon (Co–N–C)oxygen electrocatalysts for Zn–air batteries, aiming to enhance the active spots of Co–N–C.This resulting Co–N–C catalysts exhibited well-defined nanofiber networks, and the Brunauer-Emmett-TellerElectrochemical experiments demonstrated that the Co–N–C catalysts achieved the half-wave potential (RHE) of 0.85 V in alkaline medium, overcoming Pt/C and iron–nitrogen–carbon (Fe–N–C) counterparts in

Keywords： oxygen reduction reaction (ORR)     oxygen evolution reaction (OER)     non-noble metal catalysts     Co–N–C catalysts    

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Elevated C-reactive protein levels predict worsening prognosis in Chinese patients with first-onset stroke

Jiangtao YAN, Rutai HUI, Daowen WANG

Frontiers of Medicine 2009, Volume 3, Issue 1,   Pages 30-35 doi: 10.1007/s11684-009-0005-x

Abstract: The role of high sensitivity C-reactive protein (hsCRP) in predicting prognosis after stroke in the Asian

Keywords： C-reactive protein     inflammation     stroke    

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A simple, azulene-based colorimetric probe for the detection of nitrite in water

Lloyd C. Murfin, Carlos M. López-Alled, Adam C. Sedgwick, Jannis Wenk, Tony D. James, Simon E. Lewis

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 1,   Pages 90-96 doi: 10.1007/s11705-019-1790-7

Abstract: We describe the synthesis and evaluation of an azulene-based chemodosimeter for nitrite. The probe was found to undergo two distinct color changes upon introduction aqueous nitrite ion. A near-instant formation of a grey color provides a qualitative indication of the presence of nitrite, followed by the formation of a deep-yellow/orange color, the endpoint from which quantitative data can be derived. The azulene probe exhibits 1:1 stoichiometry of reaction with nitrite in water, and is selective for nitrite over other anions. The azulene probe was applied to determine nitrite content in cured meat, and compared with the British Standard testing procedure (Griess test). The value obtained from the azulene-based probe agreed closely with the standard test. Our procedure only requires the preparation of one standard solution, instead of the three required for the standard Griess test.

Keywords： azulene     nitrite     diazoquinone    

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Comments on the special issue on tropical crops of

Luiz J C B CARVALHO

Frontiers of Agricultural Science and Engineering 2016, Volume 3, Issue 4,   Pages 375-376 doi: 10.15302/J-FASE-2016129

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Enhancing the efficiency of nitrogen removing bacterial population to a wide range of C:N ratio (1.5:1 to 14:1) for simultaneous C & N removal

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 8, doi: 10.1007/s11783-022-1522-y

Abstract:

• Simultaneous C & N removal in Methammox occurs at wide C:N ratio.

Keywords： Methanogens     Biological Nitrogen Removal (BNR)     Simultaneous     Methammox     C:N ratio    

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Comments on the special issue of

Neil C. TURNER

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 2,   Pages 254-255 doi: 10.15302/J-FASE-2017156

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A density functional theory study of methane activation on MgO supported NiM cluster: role of M on C–H

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 10,   Pages 1485-1492 doi: 10.1007/s11705-022-2169-8

Abstract: The role of M on the first C–H bond cleavage of CH4 was investigated.Doping elements of the same period in Ni cluster, such as Fe, Co and Cu, for C–H bond activation followsAs a result, Ni–Fe shows the best ability for C–H bond cleavage.Consequently, C–H bond activation demands a lower energy barrier on Ni–Pt cluster.

Keywords： CH4 dissociation     Ni–M     C–H bond activation     charge transfer    

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Modeling of alkali-silica reaction in concrete: a review

WANG, Q.C. SUN, C.H. ZHANG, D.R.J. OWEN

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 1,   Pages 1-18 doi: 10.1007/s11709-012-0141-2

Abstract: This paper presents a comprehensive review of modeling of alkali-silica reaction (ASR) in concrete. Such modeling is essential for investigating the chemical expansion mechanism and the subsequent influence on the mechanical aspects of the material. The concept of ASR and the mechanism of expansion are first outlined, and the state-of-the-art of modeling for ASR, the focus of the paper, is then presented in detail. The modeling includes theoretical approaches, meso- and macroscopic models for ASR analysis. The theoretical approaches dealt with the chemical reaction mechanism and were used for predicting pessimum size of aggregate. Mesoscopic models have attempted to explain the mechanism of mechanical deterioration of ASR-affected concrete at material scale. The macroscopic models, chemo-mechanical coupling models, have been generally developed by combining the chemical reaction kinetics with linear or nonlinear mechanical constitutive, and were applied to reproduce and predict the long-term behavior of structures suffering from ASR. Finally, a conclusion and discussion of the modeling are given.

Keywords： alkali-silica reaction (ASR)     modeling     concrete     mesoscopic     macroscopic    

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Title Author Date Type Operation

Clean production of lactic acid by selective carbon-carbon bond cleavage of biomass feedstock over a novel carbon-bismuth oxychloride photocatalyst

Journal Article

ZnFe2O4 deposited on BiOCl with exposed (001) and (010) facets for photocatalytic

Guixian Song, Xionggang Wu, Feng Xin, Xiaohong Yin

Journal Article

Valveless pumping using a two-stage impedance pump

C.-C. LEE, Y. A. ABAKR, K.-C. WOO

Journal Article

Bioinspired C/TiO

Jian LI, Likun GAO, Wentao GAN

Journal Article

Design of GPRS Data Terminal Based on S3C2410

Sun Xueyong

Journal Article

Antithrombin deficiency and decreased protein C activity in a young man with venous thromboembolism:

Dong Wang, Min Tian, Guanglin Cui, Dao Wen Wang

Journal Article

Atomistic simulations of plasma catalytic processes

Erik C. Neyts

Journal Article

Highly efficient and active Co–N–C catalysts for oxygen reduction and Zn–air batteries

Journal Article

Elevated C-reactive protein levels predict worsening prognosis in Chinese patients with first-onset stroke

Jiangtao YAN, Rutai HUI, Daowen WANG

Journal Article

A simple, azulene-based colorimetric probe for the detection of nitrite in water

Lloyd C. Murfin, Carlos M. López-Alled, Adam C. Sedgwick, Jannis Wenk, Tony D. James, Simon E. Lewis

Journal Article

Comments on the special issue on tropical crops of

Luiz J C B CARVALHO

Journal Article

Enhancing the efficiency of nitrogen removing bacterial population to a wide range of C:N ratio (1.5:1 to 14:1) for simultaneous C & N removal

Journal Article

Comments on the special issue of

Neil C. TURNER

Journal Article

A density functional theory study of methane activation on MgO supported NiM cluster: role of M on C–H

Journal Article

Modeling of alkali-silica reaction in concrete: a review

WANG, Q.C. SUN, C.H. ZHANG, D.R.J. OWEN

Journal Article