Results 91 to 100 of about 57,985 (299)

Solvent‐Free Bonding Mechanisms and Microstructure Engineering in Dry Electrode Technology for Lithium‐Ion Batteries

Advanced Functional Materials, EarlyView.
Dry electrode technology revolutionizes battery manufacturing by eliminating toxic solvents and energy‐intensive drying. This work details two promising techniques: dry spray deposition and polymer fibrillation. How their unique solvent‐free bonding mechanisms create uniform microstructures for thicker, denser electrodes, boosting energy density and ...
Yuhao Liang, Hao Long, Zimo Huang, Ting He, Xueming Chen, Meng Li, Hao Chen, Shanqing Zhang   +7 more
wiley   +1 more source

Ultrahigh Surface Area Three-Dimensional Porous Graphitic Carbon from Conjugated Polymeric Molecular Framework [PDF]

, 2015
Porous graphitic carbon is essential for many applications such as energy storage devices, catalysts, and sorbents. However, current graphitic carbons are limited by low conductivity, low surface area, and ineffective pore structure.
Barbieri O., Berger S. D., Bruce P. G., Chandrasekaran R., Chen Z., Chmiola J., Choi N. S., Conesa J. A., Dai X., Ding W., El-Kady M. F., Evers S., Frackowiak E., Frackowiak E., Fu Y., Gamby J., Gogotsi Y., Jagtoyen M., Kajdos A., Kim Y.-T., Korenblit Y., Kötz R., Li D., Li H.-Q., Liang X., Lin J., Liu J., Manocha S. M., Manthiram A., Marsh H., Miller J. R., Nahil M. A., Pan L., Pang Q., Raccichini R., Raymundo-Piñero E., Seh W. Z., Seh Z. W., Solum M. S., Song J., Song J., Stoller M. D., Stoller M. D., Wang J., Wang X., Weinstein L., William S., Wu Z.-S., Xu Y., Yang X., Yao H., Zhang L., Zheng G., Zheng S., Zhu Y.   +54 more
core   +4 more sources

High‐Yield Synthesis of Fe‐NC Electrocatalysts Using Mg2+ Templating and Schiff‐Base Porous Organic Polymers

Advanced Functional Materials, EarlyView.
Fe─NC porous oxygen reduction electrocatalysts are prepared employing a 2,4,6‐Triaminopyrimidine‐based porous organic polymer, a Mg2+ Lewis acid, and a low‐temperature cation exchange protocol. Using the polymer precursor achieves high pyrolysis yields and results in atomically dispersed FeNx sites. The resulting catalysts feature hierarchical porosity
Eliot Petitdemange, Jinjie Zhu, Angus Pedersen, Joseph Parker, S. Esmael Balaghi, Shaohua Li, Silvia Favero, José Ignacio Martínez, Sarah Haigh, Maria‐Magdalena Titirici, Anna Fischer, Jesús Barrio   +11 more
wiley   +1 more source

Preparation and Capacitive Properties of Nitrogen-Enriched Hierarchical Porous Carbon

International Journal of Electrochemical Science, 2012
Nitrogen-enriched hierarchical porous carbon was prepared from melamine-formaldehyde resin/poly (vinyl alcohol) blend using MgO as template. The structural properties and surface chemistry were characterized by nitrogen sorption at 77 K, transmission ...
Chang Ma, Jingli Shi, Yan Song, Dongqing Zhang, Xiaoling Zhai, Ming Zhong, Quangui Guo, Lang Liu   +7 more
doaj   +1 more source

Laser‐Induced Microfabrication of Carbon Nanostructure: Processing Mechanism and Application for Next‐Generation Battery Technology

Advanced Functional Materials, EarlyView.
The article reviews laser‐processed carbons from various precursors, processing mechanism and their application in advanced batteries. The laser process is chemical free, fast, and scalable, enabling improved battery performance and stability for Li, Na, and Zn battery technologies.
Sujit Deshmukh, Shaista Nouseen, Martin Pumera   +2 more
wiley   +1 more source

Post Polymerisation Hypercrosslinking with Emulsion Templating for Hierarchical and Multi-Level Porous Polymers

Acta Chimica Slovenica, 2020
Porosity in polymers and polymeric materials adds to their functionality due to achieving the desired tailored characteristics porosity offers, such as improved mass transfer through the material, improved accessibility of reactive sites, reduced overall
Amadeja Koler, Irena Pulko, Peter Krajnc
doaj   +1 more source

Modelling of Supercapacitors: Factors Influencing Performance [PDF]

, 2016
The utilizable capacitance of Electrochemical Double Layer Capacitors (EDLCs) is a function of the frequency at which they are operated and this is strongly dependent on the construction and physical parameters of the device.
Kosek, J, Kroupa, M, Offer, GJ
core   +1 more source

Enhancing and Stabilizing Hydrogen Catalysis Through [NiFe]‐Hydrogenase Immobilization Within Macroporous Covalent Organic Frameworks

Advanced Functional Materials, EarlyView.
[NiFe]‐hydrogenases efficiently catalyze hydrogen conversion, but their instability limits biotechnological applications. Here it is shown that encapsulating hydrogenase into hierarchical COFs with macro‐ and micropores and functionalized with sulfonic or carboxylic acid groups improves enzyme stability and electron transfer to electrodes.
Islam E. Khalil, Armel F. Tadjoung Waffo, Prasenjit Das, Sagie Katz, Sandra Kunow, Christian Lorent, Yasmine Ziouani, Warisha Tahir, Augustine A. Owusu, Oliver Lenz, Ingo Zebger, Stefan Frielingsdorf, Arne Thomas   +12 more
wiley   +1 more source

The synthesis of urchin-like γ-Al2O3 hierarchical microspheres from Al foils and its rapid adsorption ability towards Congo red

Materials Research Express, 2020
In this paper, we present a convenient hydrothermal method to synthesize hierarchical microspheres consisting of ammonium aluminum carbonate hydroxide (AACH) nanowires with a diameter of about 400 nm and length ∼50 μ m on aluminum foils.
Kaizhong Feng, Jie An, Weian Ren, Xiaoling Lei, Gaoying Li, Daoqing Rong, Xiaogang Wen   +6 more
doaj   +1 more source

Biomimetic and bioinspired silica : recent developments and applications [PDF]

, 2011
In a previous review of biological and bioinspired silica formation (S. V. Patwardhan et al., Chem. Commun., 2005, 1113 [ref. 1]), we have identified and discussed the roles that organic molecules (additives) play in silica formation in vitro. Tremendous
Patwardhan, Siddharth
core   +1 more source