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Flexible, ultrathin, and multifunctional polypyrrole/cellulose nanofiber composite films with outstanding photothermal

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 8,   Pages 1028-1037 doi: 10.1007/s11705-022-2251-2

Abstract: Electrodes that combine energy storage with mechanical and photothermal performance are necessary forefficient development and use of flexible energy storage and conversion devices.Further, the polypyrrole/cellulose nanofiber composite films with sandwich structure had excellent photothermalconversion properties.

Keywords： cellulose nanofiber     electrochemical     photothermal conversion     polypyrrole    

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Photothermal materials for efficient solar powered steam generation

Fenghua Liu, Yijian Lai, Binyuan Zhao, Robert Bradley, Weiping Wu

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 4,   Pages 636-653 doi: 10.1007/s11705-019-1824-1

Abstract: The nano-structured photothermal materials are able to harvest energy from the full solar spectrum andThis paper provides a systematic review on the recent developments in photothermal nanomaterial discoveryThis article will help to stimulate novel ideas and new designs for the photothermal materials, towards

Keywords： solar stream generation     plasmonics     porous carbon     photothermal materials     solar energy conversion efficiency    

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Silica-based nanoarchitecture for an optimal combination of photothermal and chemodynamic therapy functions

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 2144-2155 doi: 10.1007/s11705-023-2362-4

Abstract: This study introduces multifunctional silica nanoparticles that exhibit both high photothermal and chemodynamicthe silica nanoparticles exhibit both self-boosting generation of reactive oxygen species and high photothermalconversion efficacy, which are essential for photothermal and chemodynamic activities.The photothermal activity of the silica nanoparticles is demonstrated by significant cell death under

Keywords： copper sulfide nanoparticles     chemodynamic therapy     photothermal therapy     carbon dots     silica nanoparticles    

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Bio-based Waterborne Poly(Vanillin-Butyl Acrylate)/MXene Coatings for Leather with Desired Warmth Retention and Antibacterial Properties

Jianzhong Ma,Li Ma,Lei Zhang,Wenbo Zhang,Qianqian Fan,Buxing Han,

Engineering doi: 10.1016/j.eng.2023.06.005

Abstract: Subsequently, MXene nanosheets with excellent photothermal conversion performance and antibacterial propertiesamphiphilicity of MXene, which prompted its full exposure to light and bacteria, exerting the maximum photothermalconversion efficiency and significant antibacterial efficacy.

Keywords： MXene nanosheets     Vanillin     Styrene substitute     Leather coating     Photothermal conversion     Warmth retention    

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Photothermal-Management Agricultural Films toward Industrial Planting: Opportunities and Challenges

Song Zhang,Zhang Chen,Chuanxiang Cao,Yuanyuan Cui,Yanfeng Gao,

Engineering doi: 10.1016/j.eng.2023.06.016

Abstract: this high level of sunlight transmission may be inappropriate or even harmful for crops with specific photothermalThis review provides insight into the photothermal requirements of crops and ways to meet these requirementsFinally, future challenges and directions for photothermal-management agricultural films are elaborated

Keywords： Greenhouse     Photothermal management     Passive radiative cooling     Light scattering    

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Investigation of the roles of lignin in biomass-based hydrogel for efficient desalination

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 7,   Pages 954-965 doi: 10.1007/s11705-023-2311-2

Abstract: To develop highly efficient and environmentally friendly photothermal evaporator, the hydroxyethyl celluloseThis low-cost lignin-based photothermal evaporator offers a sustainable strategy for desalination.

Keywords： lignin     photothermal     cellulose     desalination     hydrogel    

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Hydrogel photocatalysts for efficient energy conversion and environmental treatment

Frontiers in Energy 2021, Volume 15, Issue 3,   Pages 577-595 doi: 10.1007/s11708-021-0756-x

Abstract: Moreover, current applications of hydrogel photocatalysts in energy conversion and environmental remediation

Keywords： hydrogel     photocatalysts     energy conversion     environmental treatment    

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Biological conversion pathways of sulfate reduction ammonium oxidation in anammox consortia

Zhen Bi, Deqing Wanyan, Xiang Li, Yong Huang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 3, doi: 10.1007/s11783-019-1217-1

Abstract: AOB and AnAOB are mainly responsible for ammonium conversion.Heterotrophic sulfate reduction mainly contributed to sulfate conversion.Results obtained differed largely for the conversion mole ratios (ammonium/sulfate), and even the intermediateThus, the hypothesis of biological conversion pathways of ammonium and sulfate in anammox consortia isdifferent biomass proportions to verify the SRAO phenomena and identify possible pathways behind substrate conversion

Keywords： Anammox bacteria     Autotrophic     Biological conversion     Sulfate reducing ammonium oxidation (SRAO)    

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Sustainable conversion regenerated cellulose into cellulose oleate by sonochemistry

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 8,   Pages 1096-1108 doi: 10.1007/s11705-023-2317-9

Abstract: Derivatization has great potential for the high-value utilization of cellulose by enhancing its processability and functionality. However, due to the low reactivity of natural cellulose, it remains challenging to rapidly prepare cellulose derivatives with high degrees of substitution. The “cavitation effect” of ultrasound can reduce the particle size and crystalline index of cellulose, which provides a possible method for preparing cellulose derivatives. Herein, a feasible method was proposed for efficiently converting regenerated cellulose to cellulose oleate with the assistance of ultrasonic treatment. By adjusting the reaction conditions including ultrasonic intensity, feeding ratios of oleic acid, reaction time, and reaction solvent, a series of cellulose oleates with degrees of substitution ranging from 0.37 to 1.71 were synthesized. Additionally, the effects of different reaction conditions on the chemical structures, crystalline structures, and thermal behaviors were investigated thoroughly. Cellulose oleates with degrees of substitution exceeding 1.23 exhibited amorphous structures and thermoplasticity with glass transition temperatures at 159.8 to 172.6 °C. This study presented a sustainable and practicable method for effectively derivatizing cellulose.

Keywords： regenerated cellulose     cellulose oleate     sonochemistry     degree of substitution     thermoplasticity    

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Dynamic contribution of variable-speed wind energy conversion system in system frequency regulation

Yajvender Pal VERMA, Ashwani KUMAR

Frontiers in Energy 2012, Volume 6, Issue 2,   Pages 184-192 doi: 10.1007/s11708-012-0185-y

Abstract: Frequency regulation in a generation mix having large wind power penetration is a critical issue, as wind units isolate from the grid during disturbances with advanced power electronics controllers and reduce equivalent system inertia. Thus, it is important that wind turbines also contribute to system frequency control. This paper examines the dynamic contribution of doubly fed induction generator (DFIG)-based wind turbine in system frequency regulation. The modified inertial support scheme is proposed which helps the DFIG to provide the short term transient active power support to the grid during transients and arrests the fall in frequency. The frequency deviation is considered by the controller to provide the inertial control. An additional reference power output is used which helps the DFIG to release kinetic energy stored in rotating masses of the turbine. The optimal speed control parameters have been used for the DFIG to increases its participation in frequency control. The simulations carried out in a two-area interconnected power system demonstrate the contribution of the DFIG in load frequency control.

Keywords： doubly fed induction generator (DFIG)     load frequency control     inertial control     wind energy conversion    

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Anticorrosive composite self-healing coating enabled by solar irradiation

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 9,   Pages 1355-1366 doi: 10.1007/s11705-022-2147-1

Abstract: melting point, and Fe3O4 nanoparticles serve as a phase-change component and photothermalFe3O4 nanoparticles endow this composite self-healing coating with good photothermalcreated in this type of self-healing coating can be healed by the liquified tetradecanol induced by the photothermal

Keywords： self-healing coating     phase transition     photothermal effect     corrosion protection    

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Micro/nanofluidics-enabled energy conversion and its implemented devices

Yang YANG, Jing LIU

Frontiers in Energy 2011, Volume 5, Issue 3,   Pages 270-287 doi: 10.1007/s11708-010-0126-6

Abstract: The fluids in nature serve as the most common carriers and media in the energy conversion process.Following the rapid development of microelectromechanical systems (MEMS) technology, the energy supply and conversionIn this paper, a series of micro/nanofluid-enabled energy conversion devices is reviewed based on theto the establishment of a comprehensive and systematic structure in the relationship between energy conversion

Keywords： micro/nanofluid     different energy forms     energy conversion     medium role    

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Conversion of polyethylene to gasoline: Influence of porosity and acidity of zeolites

Frontiers in Energy   Pages 763-774 doi: 10.1007/s11708-023-0897-1

Abstract: Zeolites are cheap and stable, but they are usually not efficient for plastic conversion at a low temperaturewere used to study the influence of porosity and acidity of zeolite on catalytic activity for plastics conversionThis study provides very useful information for designing zeolites for efficient conversion of plastics

Keywords： plastics conversion     polyethylene     zeolites     acidity     porosity    

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Gold modified cobalt-based Fischer-Tropsch catalysts for conversion of synthesis gas to liquid fuels

Alan J. McCue, Jura Aponaviciute, Richard P.K. Wells, James A. Anderson

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 3,   Pages 262-269 doi: 10.1007/s11705-013-1334-5

Abstract: The addition of Au as a promoter/modifier for alumina supported Co catalyst has been studied by combined high temperature, high pressure Fourier transform infrared (FTIR) and on-line gas chromatography. The combination of these tools permitted the state of the active catalyst surface to be monitored while following the elution of reaction products during the first 5–7 h on stream of the catalyst. The catalysts under study were a 10%Co/Al O and a 2.5%Au/10%Co/Al O Samples were characterised before use using Raman and temperature programmed reduction (TPR). During the initial stages of reaction, hydrocarbons were built up on the surface of the catalyst as monitored by FTIR and the nature and amount of these species were assessed in terms of CH /CH ratio and the density of these alkyl fragments by employing absorption coefficients for the individual components. The nature and reducibility of the Co particles were modified by the presence of Au while the later also shifted the CO/H balance by acting as an effective water-gas shift catalyst during the early stages of reaction. This characteristic was lost during reaction as a consequence of redistribution of the two metallic phases.

Keywords： gold modified catalyst     conversion of synthesis gas    

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A review on front end conversion in ocean wave energy converters

Nagulan SANTHOSH,Venkatesan BASKARAN,Arunachalam AMARKARTHIK

Frontiers in Energy 2015, Volume 9, Issue 3,   Pages 297-310 doi: 10.1007/s11708-015-0370-x

Abstract: of the wave energy converter among other stages such as power take off (PTO) and electrical energy conversionIf the recent development of these front end energy conversion is well known then developing wave energyThe aim of this review is to provide information on front end energy conversion of a point absorber and

Keywords： wave energy converter     point absorbers     power take off (PTO)     front end energy conversion    

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Title Author Date Type Operation

Flexible, ultrathin, and multifunctional polypyrrole/cellulose nanofiber composite films with outstanding photothermal

Journal Article

Photothermal materials for efficient solar powered steam generation

Fenghua Liu, Yijian Lai, Binyuan Zhao, Robert Bradley, Weiping Wu

Journal Article

Silica-based nanoarchitecture for an optimal combination of photothermal and chemodynamic therapy functions

Journal Article

Bio-based Waterborne Poly(Vanillin-Butyl Acrylate)/MXene Coatings for Leather with Desired Warmth Retention and Antibacterial Properties

Jianzhong Ma,Li Ma,Lei Zhang,Wenbo Zhang,Qianqian Fan,Buxing Han,

Journal Article

Photothermal-Management Agricultural Films toward Industrial Planting: Opportunities and Challenges

Song Zhang,Zhang Chen,Chuanxiang Cao,Yuanyuan Cui,Yanfeng Gao,

Journal Article

Investigation of the roles of lignin in biomass-based hydrogel for efficient desalination

Journal Article

Hydrogel photocatalysts for efficient energy conversion and environmental treatment

Journal Article

Biological conversion pathways of sulfate reduction ammonium oxidation in anammox consortia

Zhen Bi, Deqing Wanyan, Xiang Li, Yong Huang

Journal Article

Sustainable conversion regenerated cellulose into cellulose oleate by sonochemistry

Journal Article

Dynamic contribution of variable-speed wind energy conversion system in system frequency regulation

Yajvender Pal VERMA, Ashwani KUMAR

Journal Article

Anticorrosive composite self-healing coating enabled by solar irradiation

Journal Article

Micro/nanofluidics-enabled energy conversion and its implemented devices

Yang YANG, Jing LIU

Journal Article

Conversion of polyethylene to gasoline: Influence of porosity and acidity of zeolites

Journal Article

Gold modified cobalt-based Fischer-Tropsch catalysts for conversion of synthesis gas to liquid fuels

Alan J. McCue, Jura Aponaviciute, Richard P.K. Wells, James A. Anderson

Journal Article

A review on front end conversion in ocean wave energy converters

Nagulan SANTHOSH,Venkatesan BASKARAN,Arunachalam AMARKARTHIK

Journal Article