Results 41 to 50 of about 1,032,779 (227)

Dual Single Atoms Boosting Photocatalytic Upcycling of Raw Polyvinylidene Fluoride Plastic

Advanced Materials, EarlyView.
To resolve the catastrophic disaster of plastic contamination, the Cu‐Fe dual‐single‐atom‐loaded In2P3S9 NSs photocatalyst was prepared for direct conversion of raw polyvinylidene fluoride plastic into valuable chemicals. The dual‐single‐atom catalyst exhibits exceptional performance, with a total acetic/formic acid production of ∼1351.8 µmol g−1 ...
Amin Talebian‐Kiakalaieh, Shiying Ren, Wenzhong Ji, Yun Liu, Bingquan Xia, Jingrun Ran, Shi‐Zhang Qiao   +6 more
wiley   +1 more source

Interface Engineering of Porous Transport Layer‐Catalyst Layer in Proton Exchange Membrane Water Electrolyzers: A Comprehensive Review

Advanced Materials Interfaces, EarlyView.
The PTL–CL interface plays a decisive role in PEMWE performance by governing electron conduction, water supply, oxygen removal, catalyst utilization, and interfacial stability. This review summarizes interface‐related resistance sources, characterization methods, and engineering strategies, highlighting rational PTL–CL interface design for low‐cost ...
Aobo Wan, Zhengkai Tu
wiley   +1 more source

Research Of Efficiency Of Catalytic Converters In Automobiles With An Otto Engine

, 2013
This article considers briefly the system of catalytic converters and its functioning in automobiles with an Otto engine. The main focus of the work is the research of catalytic converter operating effectiveness in used passenger cars.
Romualdas Juknelevičius, Žuraulis, Vidas, Švelnia, Virginijus, Vidas Žuraulis, Ričardas Vėgneris, Jonas Matijošius, Nagurnas, Saulius, Juknelevičius, Romualdas, Saulius Nagurnas, Zautra, Rytis, Virginijus Švelnia, Rytis Zautra, Matijošius, Jonas, Saugirdas Pukalskas, Pukalskas, Saugirdas, Vėgneris, Ričardas   +15 more
core   +1 more source

Supercapacitor assisted LDO (SCALDO) techniquean extra low frequency design approach to high efficiency DC-DC converters and how it compares with the classical switched capacitor converters [PDF]

, 2013
Supercapacitor assisted low dropout regulators (SCALDO) were proposed as an alternative design approach to DC-DC converters, where the supercapacitor circulation frequency (switching frequency) is in the order of few Hz to few 10s of Hz, with an output ...
Nihal Kulatana, Kankanamge, Kosala, Kularatna, Nihal, Kosala Kankanmage, Kulatana, Nihal, Kankanmage, Kosala   +5 more
core   +1 more source

Thermo-Catalytic Reforming of Spent Coffee Grounds

, 2022
Art. 44, 12 S.Conversion of spent coffee grounds through the Thermo-Catalytic Reforming system (TCR ®) is evaluated in this study. While, the TCR ® is a technology that has been developed by Fraunhofer UMSICHT, which combines an intermediate pyrolysis ...
Daschner, Robert, Jäger, Nils, Hornung, Andreas, Elmously, Mohamed, Apfelbacher, Andreas   +4 more
core   +1 more source

Scalable Production of Disordered Nickel‐Iron‐Aluminum Oxides as Stable Anodes for Water Electrolysis: The Role of Aluminum

Advanced Materials Interfaces, EarlyView.
Solution precursor plasma spraying enables the scalable fabrication of porous and disordered nickel‐iron‐aluminum oxide coatings as precious‐metal‐free anodes. Aluminum inhibits crystal growth, optimizes local atomic sites, and enhances charge and ion transport to accelerate reaction kinetics, leading to excellent performance and operational stability.
Tugce Ustunel, Joakim Bäckström, Esdras J. Canto‐Aguilar, Mouna Rafei, Litty Thomas Manamel, Mahesh Ramakrishnan, Konstantin Klementiev, Nina Grunditz, Erik Zimmerman, Thomas Wågberg, Susanne Holmin, Eduardo Gracia‐Espino   +11 more
wiley   +1 more source

Modelling approaches for DC-DC converters with switched capacitors

, 2015
In this paper we review relevant problems in the modelling of DC-DC converters with switched capacitors. We study several approaches that overcome the exposed modelling difficulties, addressing ideal and nonideal cases and using dynamic equations that ...
Rapisarda, P., Rosas Caro, J.C., Mayo Maldonado, J.C.   +2 more
core   +1 more source

Recovery of platinum from spent automotive catalytic converters by leaching with aluminium-based salts solutions

Separation and Purification Technology
This work was financially supported by national funds through FCT – Fundação para a Ciência e a Tecnologia, I.P., within the scope of the project PlatILPlus (2022.04478.PTDC, DOI: 10.54499/2022.04478.PTDC). This work was further supported by the projects CICECO-Aveiro Institute of Materials, UIDB/50011/2020 (DOI: 10.54499/UIDB/50011/2020), UIDP/50011 ...
Braga, Flavia N., Coelho, António, Carreira, Ana R.F., Sosa, Filipe H.B., Schaeffer, Nicolas, Passos, Helena, Coutinho, João A.P.   +6 more
openaire   +2 more sources

Bioavailability of fine dispersed platinum as emitted from automotive catalytic converters

, 2022
S.219-242Automobile exhaust catalytic converters emit fine dispersed elemental platinum, Pt(0), in the nanometer range coated on larger aluminium oxide carrier particles.
Nachtigall, D., Heinrich, U., Kock, H., Artelt, S., Levsen, K., Schlögl, R., Creutzenberg, O., Rühle, T.   +7 more
core   +1 more source

Electrically Induced Photonic Assemblies of Faceted ZIF‐8 Crystals Exhibiting Binary Angle‐Dependent Structural Color and Metamerism

Advanced Optical Materials, EarlyView.
Electric fields drive dynamic photonic assemblies that reversibly generate structural color. By tuning nanoscale organization through controlled particle disorder, the presented system exhibits a unique binary color response, switching between blue and pink depending on viewing angle. Combined with metameric design, this allows for a two‐factor optical
Flora Schöfbeck, Tolga Zorlu, Michael R. Reithofer, Julian Lemmel, Daniel Hetey, Chao‐Chin Huang, Youven Benseghir, Yu‐Chueh Hung, Lucas V. Besteiro, Jia Min Chin   +9 more
wiley   +1 more source