All Outputs (162)

High Throughput Fabrication of Microdroplets Using Needle Based Microfluidic System (2019)
Presentation / Conference Contribution
Lian, Z., Ren, Y., Koh, K. S., He, J., Chen, G. Z., & Yang, X. (2019). High Throughput Fabrication of Microdroplets Using Needle Based Microfluidic System. In ASME 2019 6th International Conference on Micro/Nanoscale Heat and Mass Transfer. https://doi.org/10.1115/MNHMT2019-4263

Copyright © 2019 ASME Needle-based microfluidic system that comprised of needle-based microfluidic devices (NBMD) in parallel connection was employed to generate polydimethylsiloxane (PDMS) microdroplets using oil-in-water (O/W) single emulsion templ... Read More about High Throughput Fabrication of Microdroplets Using Needle Based Microfluidic System.

New Precursors Derived Activated Carbon and Graphene for Aqueous Supercapacitors with Unequal Electrode Capacitances (2019)
Journal Article
Yao, C., & Zheng, C. G. (2019). New Precursors Derived Activated Carbon and Graphene for Aqueous Supercapacitors with Unequal Electrode Capacitances. Acta Physico-Chimica Sinica, 36(2), Article 1904025. https://doi.org/10.3866/PKU.WHXB201904025

Carbon materials can offer various micro-and nano-structures, and bulk and surface functionalities, and hence remain most popular for manufacturing supercapacitors. This article reviews critically recent development in preparation of carbon materials... Read More about New Precursors Derived Activated Carbon and Graphene for Aqueous Supercapacitors with Unequal Electrode Capacitances.

Ionic Liquid-Based Electrolytes for Supercapacitor and Supercapattery (2019)
Journal Article
Yu, L., & Chen, G. Z. (2019). Ionic Liquid-Based Electrolytes for Supercapacitor and Supercapattery. Frontiers in Chemistry, 7, https://doi.org/10.3389/fchem.2019.00272

There is a strong desire to replace or complement aqueous and organic electrolytes by ionic liquids (ILs) in electrochemical energy storage (EES) devices to achieve high operating voltages and hence high energy capacity. ILs are regarded as the inher... Read More about Ionic Liquid-Based Electrolytes for Supercapacitor and Supercapattery.

Assessment of toxicity reduction in ZnS substituted CdS:P3HT bulk heterojunction solar cells fabricated using a single-source precursor deposition (2019)
Journal Article
Bishop, M. T., Tomatis, M., Zhang, W., Peng, C., Chen, G. Z., He, J., & Hu, D. (2019). Assessment of toxicity reduction in ZnS substituted CdS:P3HT bulk heterojunction solar cells fabricated using a single-source precursor deposition. Sustainable Energy and Fuels, 3(4), 948-955. https://doi.org/10.1039/c9se00123a

Utilisation of cadmium sulphide (CdS) for the preparation of hybrid bulk heterojunction (BHJ) solar cells is limited due to its high human, soil and marine toxicity. This work aims to reduce the toxicity of the cadmium based hybrid bulk heterojunctio... Read More about Assessment of toxicity reduction in ZnS substituted CdS:P3HT bulk heterojunction solar cells fabricated using a single-source precursor deposition.

Anion-binding-induced electrochemical signal transduction in ferrocenylimidazolium: combined electrochemical experimental and theoretical investigation (2019)
Journal Article
Weng, T., Huang, Y., Xue, L., Cheng, J., Jin, S., Liu, S., …Chen, G. Z. (2019). Anion-binding-induced electrochemical signal transduction in ferrocenylimidazolium: combined electrochemical experimental and theoretical investigation. Molecules, 24(2), Article 238. https://doi.org/10.3390/molecules24020238

Five ferrocene alkymethylimidazolium cations 1a–1d and 2 with different alkyl spacer lengths were reinvestigated using voltammetry and density functional theory (DFT) calculations. The voltammetric responses of ligand 2 toward various anions are desc... Read More about Anion-binding-induced electrochemical signal transduction in ferrocenylimidazolium: combined electrochemical experimental and theoretical investigation.

Optimal Utilization of Combined Double Layer and Nernstian Charging of Activated Carbon Electrodes in Aqueous Halide Supercapattery through Capacitance Unequalization (2018)
Journal Article
Akinwolemiwa, B., Wei, C., Yang, Q., Yu, L., Xia, L., Hu, D., …Chen, G. Z. (2018). Optimal Utilization of Combined Double Layer and Nernstian Charging of Activated Carbon Electrodes in Aqueous Halide Supercapattery through Capacitance Unequalization. Journal of The Electrochemical Society, 165(16), A4067-A4076. https://doi.org/10.1149/2.0031902jes

Charge storage through electric double layer (EDL) charging of activated carbon (AC) and redox reactions of iodide and bromide ions in aqueous electrolytes and at the AC | electrolyte interface has been investigated by cyclic voltammetry and galvanos... Read More about Optimal Utilization of Combined Double Layer and Nernstian Charging of Activated Carbon Electrodes in Aqueous Halide Supercapattery through Capacitance Unequalization.

Microfluidic fabrication of porous polydimethylsiloxane microparticles for the treatment of toluene-contaminated water (2018)
Journal Article
Lian, Z., Ren, Y., He, J., Chen, G. Z., & Koh, K. S. (2018). Microfluidic fabrication of porous polydimethylsiloxane microparticles for the treatment of toluene-contaminated water. Microfluidics and Nanofluidics, 22(12), https://doi.org/10.1007/s10404-018-2157-y

© 2018, Springer-Verlag GmbH Germany, part of Springer Nature. In this paper, pristine and two types of porous polydimethylsiloxane (PDMS) microparticles were fabricated using oil-in-water (O/W) single emulsion template by the needle-based microflui... Read More about Microfluidic fabrication of porous polydimethylsiloxane microparticles for the treatment of toluene-contaminated water.

Cross-linked Ni(OH)<inf>2</inf>/CuCo<inf>2</inf>S<inf>4</inf>/Ni networks as binder-free electrodes for high performance supercapatteries (2018)
Journal Article
Tang, N., You, H., Li, M., Chen, G. Z., & Zhang, L. (2018). Cross-linked Ni(OH)2/CuCo2S4/Ni networks as binder-free electrodes for high performance supercapatteries. Nanoscale, 10(44), 20526-20532. https://doi.org/10.1039/c8nr05662e

The heterogeneous Ni(OH)2/CuCo2S4/Ni electrode is constructed by appropriately adjusting the time-dependent hydrothermal and electrodeposition process. A hybrid device exhibits 39.7 W h kg-1 of specific energy and 365.3 W kg-1 of specific power, with... Read More about Cross-linked Ni(OH)<inf>2</inf>/CuCo<inf>2</inf>S<inf>4</inf>/Ni networks as binder-free electrodes for high performance supercapatteries.

(Invited) Interaction of Anions with Partially Oxidized Carbon Nanotubes and the Influence on the Performance of Polypyrrole-Carbon Nanotube Composite Electrodes (2018)
Presentation / Conference Contribution
Wei, C., Akinwolemiwa, B., Yu, L., Hu, D., Xia, L., & Chen, G. Z. (2018, September). (Invited) Interaction of Anions with Partially Oxidized Carbon Nanotubes and the Influence on the Performance of Polypyrrole-Carbon Nanotube Composite Electrodes. Presented at AiMES 2018 Meeting, Cancun, Mexico

Partial oxidation of carbon nanotubes (CNTs) in mixed HNO3 and H2SO4 is commonly used for the preparation of polymer-CNT composites. This procedure, however, emits toxic NOx fumes, making it difficult for commercial scale-up. Herein we report an envi... Read More about (Invited) Interaction of Anions with Partially Oxidized Carbon Nanotubes and the Influence on the Performance of Polypyrrole-Carbon Nanotube Composite Electrodes.

Polymer Composites with Functionalized Carbon Nanotube and Graphene (2018)
Book Chapter
Wei, C. H., Akinwolemiwa, B., Yu, L. P., Hu, D., & Chen, G. Z. (2018). Polymer Composites with Functionalized Carbon Nanotube and Graphene. In K. Pielichowski, & T. Majka (Eds.), Polymer Composites with Functionalized Nanoparticles: Synthesis, Properties, and Applications (211-248). Amsterdam: Elsevier. https://doi.org/10.1016/B978-0-12-814064-2.00007-X

The functionalization of carbon nanotubes (CNTs) and graphene (GN) has been shown to be an important prerequisite for the effective coating of their surfaces with polymers. In this chapter, the methods of introducing carboxylic, carbonyl, sulfonic, a... Read More about Polymer Composites with Functionalized Carbon Nanotube and Graphene.

Highly-dispersed nickel nanoparticles decorated titanium dioxide nanotube array for enhanced solar light absorption (2018)
Journal Article
Chen, J., Zhou, Y., Li, R., Wang, X., & Chen, G. Z. (2019). Highly-dispersed nickel nanoparticles decorated titanium dioxide nanotube array for enhanced solar light absorption. Applied Surface Science, 464, 716-724. https://doi.org/10.1016/j.apsusc.2018.09.091

Honeycomb titanium dioxide nanotube array (TiO2-NTA) decorated by highly-dispersed nickel nanoparticles (Ni-NPs) has been grown under control on Ti foil by anodization and subsequent electrodeposition. The pore diameter and length of TiO2-NTA, and th... Read More about Highly-dispersed nickel nanoparticles decorated titanium dioxide nanotube array for enhanced solar light absorption.

Synthesis of polydimethylsiloxane microspheres using microfluidics for treatment of toluene in wastewater (2018)
Presentation / Conference Contribution
Lian, Z., Ren, Y., He, J., Chen, G. Z., & Koh, K. S. (2018). Synthesis of polydimethylsiloxane microspheres using microfluidics for treatment of toluene in wastewater. In ASME 2018 16th International Conference on Nanochannels, Microchannels, and Minichannels. https://doi.org/10.1115/ICNMM2018-7775

Copyright © 2018 ASME. Monodispersed polydimethylsiloxane (PDMS) microspheres are fabricated by a needle-based versatile microfluidic device with flow-focusing geometry. Microdroplets with various diameters are generated by tuning the flow rate of th... Read More about Synthesis of polydimethylsiloxane microspheres using microfluidics for treatment of toluene in wastewater.

Yttria-Stabilized Zirconia Aided Electrochemical Investigation on Ferric Ions in Mixed Molten Calcium and Sodium Chlorides (2018)
Journal Article
Hu, H., Gao, Y., Lao, Y., Qin, Q., Li, G., & Chen, G. Z. (2018). Yttria-Stabilized Zirconia Aided Electrochemical Investigation on Ferric Ions in Mixed Molten Calcium and Sodium Chlorides. Metallurgical and Materials Transactions B, 49(5), 2794-2808. https://doi.org/10.1007/s11663-018-1371-z

© 2018, The Minerals, Metals & Materials Society and ASM International. Electrolytic reduction of dissolved iron oxide to metal iron in molten salts with an inert anode is an alternative short route for steelmaking without CO 2 emissions. A novel... Read More about Yttria-Stabilized Zirconia Aided Electrochemical Investigation on Ferric Ions in Mixed Molten Calcium and Sodium Chlorides.

Synthesis of Polydimethylsiloxane Microspheres Using Microfluidics for Treatment of Toluene in Wastewater (2018)
Presentation / Conference Contribution
Lian, Z., Ren, Y., He, J., Chen, G. Z., & Koh, K. S. (2018). Synthesis of Polydimethylsiloxane Microspheres Using Microfluidics for Treatment of Toluene in Wastewater. . https://doi.org/10.1115/icnmm2018-7775

Copyright © 2018 ASME. Monodispersed polydimethylsiloxane (PDMS) microspheres are fabricated by a needle-based versatile microfluidic device with flow-focusing geometry. Microdroplets with various diameters are generated by tuning the flow rate of th... Read More about Synthesis of Polydimethylsiloxane Microspheres Using Microfluidics for Treatment of Toluene in Wastewater.

Fundamental Consideration for Electrochemical Engineering of Supercapattery (2018)
Journal Article
Akinwolemiwa, B., & Chen, G. (2018). Fundamental Consideration for Electrochemical Engineering of Supercapattery. Journal of the Brazilian Chemical Society, 29(5), 960-972. https://doi.org/10.21577/0103-5053.20180010

Supercapattery is the generic name for various electrochemical energy storage (EES) devices combining the merits of battery (high energy density) and supercapacitor (high power density and long cycling life). In this article, the principle and applic... Read More about Fundamental Consideration for Electrochemical Engineering of Supercapattery.

Building porous graphene architectures for electrochemical energy storage devices (2018)
Book Chapter
Chen, G. Z., & Chen, Y. (2018). Building porous graphene architectures for electrochemical energy storage devices. In R. Rajagopalan, & A. Balakrishnan (Eds.), Innovations in Engineered Porous Materials for Energy Generation and Storage Applications (86-108). Boca Raton, Florida, USA: Taylor and Francis. https://doi.org/10.1201/9781315184401-3

This chapter offers a critical review of graphene based porous materials for energy applications. Three main recent progresses are discussed on materials synthesis, including (1) potassium hydroxide activated graphenes, (2) graphene hydrogels from hy... Read More about Building porous graphene architectures for electrochemical energy storage devices.

A Rechargeable High-Temperature Molten Salt Iron–Oxygen Battery (2018)
Journal Article
Peng, C., Guan, C., Lin, J., Zhang, S., Bao, H., Wang, Y., …Wang, J. Q. (2018). A Rechargeable High-Temperature Molten Salt Iron–Oxygen Battery. ChemSusChem, 11(11), 1880-1886. https://doi.org/10.1002/cssc.201800237

© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim The energy and power density of conventional batteries are far lower than their theoretical expectations, primarily because of slow reaction kinetics that are often observed under ambient conditions... Read More about A Rechargeable High-Temperature Molten Salt Iron–Oxygen Battery.

Molecular level one-step activation of agar to activated carbon for high performance supercapacitors (2018)
Journal Article
Zhang, L., Gu, H., Sun, H., Cao, F., Chen, Y., & Chen, G. Z. (2018). Molecular level one-step activation of agar to activated carbon for high performance supercapacitors. Carbon, 132, 573-579. https://doi.org/10.1016/j.carbon.2018.02.100

Activated carbon was synthesized by a simple one-step calcination of deoxygenated agar in a hot KOH aqueous solution, in which KOH plays both deoxidant and activation agent. The deoxygenation course omits high temperature carbonization in the convent... Read More about Molecular level one-step activation of agar to activated carbon for high performance supercapacitors.

Lithium Bis(fluorosulfony)imide-Lithium Hexafluorophosphate Binary-Salt Electrolytes for Lithium-Ion Batteries: Aluminum Corrosion Behaviors and Electrochemical Properties (2018)
Journal Article
Xia, L., Jiang, Y., Pan, Y., Li, S., Wang, J., He, Y., …Chen, G. Z. (2018). Lithium Bis(fluorosulfony)imide-Lithium Hexafluorophosphate Binary-Salt Electrolytes for Lithium-Ion Batteries: Aluminum Corrosion Behaviors and Electrochemical Properties. ChemistrySelect, 3(7), 1954-1960. https://doi.org/10.1002/slct.201702488

© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim Aluminum corrosion behaviors and electrochemical properties of Lithium bis(fluorosulfony)imide (LiFSI)-lithium hexafluorophosphate (LiPF6) binary-salt electrolytes containing mixtures of LiFSI and L... Read More about Lithium Bis(fluorosulfony)imide-Lithium Hexafluorophosphate Binary-Salt Electrolytes for Lithium-Ion Batteries: Aluminum Corrosion Behaviors and Electrochemical Properties.

Research Progress and Perspectives on High Voltage, Flame Retardant Electrolytes for Lithium-Ion Batteries (2017)
Journal Article
Xia, L., Yu, L., Hu, D., & Chen, Z. G. (2017). Research Progress and Perspectives on High Voltage, Flame Retardant Electrolytes for Lithium-Ion Batteries. Acta Chimica Sinica, 75(12), 1183-1195. https://doi.org/10.6023/A17060284

© 2017 Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences. The electrolyte is an indispensable constituent in lithium ion batteries, and its role conducts electricity by means of the transportation of charge carries between the pair... Read More about Research Progress and Perspectives on High Voltage, Flame Retardant Electrolytes for Lithium-Ion Batteries.