Results 91 to 100 of about 27,948 (200)

Hydrogen-Rich Syngas Production in a Ce_0.9Zr_0.05Y_0.05O_2−δ/Ag and Molten Carbonates Membrane Reactor

ChemEngineering
This study proposes a new dense membrane for selectively separating CO2 and O2 at high temperatures and simultaneously producing syngas. The membrane consists of a cermet-type material infiltrated with a ternary carbonate phase.
José A. Raya-Colín, José A. Romero-Serrano, Cristian Carrera-Figueiras, José A. Fabián-Anguiano, Heberto Balmori-Ramírez, Oscar Ovalle-Encinia, José Ortiz-Landeros   +6 more
doaj   +1 more source

Cold Gas Sprayed Titanium Coating for Corrosion Protection of Bipolar Plates in Proton Exchange Membrane Water Electrolysis

Materials and Corrosion, EarlyView.
Climate‐neutral green hydrogen is produced via water electrolysis using renewable energy. This study explores using cold gas spraying to apply titanium coatings on steel bipolar plates for proton exchange membrane water electrolyzers. The coating shows effective corrosion protection, presenting a promising solution for future designs.
Kirsten Bobzin, Marvin Erck, Kevin Jasutyn, Katja Radermacher   +3 more
wiley   +1 more source

Detection and Pattern Recognition of Chemical Warfare Agents by MOS-Based MEMS Gas Sensor Array

Sensors
Chemical warfare agents (CWAs), including hydrogen cyanide (AC), 2-[fluoro(methyl)phosphoryl]oxypropane (GB), 3-[fluoro(methyl)phosphoryl]oxy-2,2-dimethylbutane (GD), ethyl S-(2-diisopropylaminoethyl) methylphosphonothioate (VX), and di-2-chloroethyl ...
Mengxue Xu, Xiaochun Hu, Hongpeng Zhang, Ting Miao, Lan Ma, Jing Liang, Yuefeng Zhu, Haiyan Zhu, Zhenxing Cheng, Xuhui Sun   +9 more
doaj   +1 more source

Novel tetronamides derived from mucobromic acid: synthesis, structural elucidation, DFT calculations and phytotoxic activity

Pest Management Science, EarlyView.
The acyclic mucobromic acid, activated by (1S)‐(+)‐10‐camphorsulfonic acid, afforded the chiral compound 1b, precursor for aza‐Michael addition/elimination on the butenolide yielding tetronamides 2b‐7b. Their relative SRSR configuration was confirmed by the spectrometric methods, DFT calculation and statistical methods.
Kamylla CF Faria, Vitor C Baia, Elson S Alvarenga   +2 more
wiley   +1 more source

Hydrogen–Natural Gas Blends in Combined Heat and Power Systems: A Comprehensive Review of Energy Performance, Emission Characteristics, and Integration Challenges

Eng
The decarbonization of energy systems has intensified interest in hydrogen-enriched natural gas (H2NG) as a transitional fuel for combined heat and power (CHP) units and micro-CHP systems.
Cătălina Dobre, Mihaela Constantin
doaj   +1 more source

The continuing significance of chiral agrochemicals

Pest Management Science, Volume 81, Issue 4, Page 1697-1716, April 2025.
In the time frame 2018–2023, around 43% of the 35 chiral agrochemicals introduced to the market (herbicides, fungicides, insecticides, acaricides, and nematicides) contain one or more stereogenic centers in the molecule, and almost 69% of them have been marketed as racemic mixtures of enantiomers or stereoisomers.
Peter Jeschke
wiley   +1 more source

Pengaruh Fraksi Massa Katalis Naoh terhadap Laju Produksi Gas Oxy-Hydrogen pada Generator HHO Tipe Dry Cell

JURNAL CRANKSHAFT
Energi terbarukan adalah pengembangan ilmu pengetahuan dan teknologi, energi baru yang diperbaharui dapat digunakan sebagai energi alternatif dan salah satu dari mereka adalah air, salah satu sumber energi terbarunya adalah hidrogen. Dalam pembentukan hidrogen menggunakan perangkat yang disebut generator HHO yang merupakan teknologi ramah lingkungan ...
Rahadi Agung Raharjo, Ryan Rizaldi, Tria Puspa Sari   +2 more
openaire   +1 more source

Sodium‐Based Battery Component Design: Imitating Lithium or Forging New Paths?

Small, EarlyView.
This Perspective elucidates the decisive yet underexplored impact of cation chemistry, Na+ vs. Li+ charge carriers, on the design, selection, and formulation of their corresponding battery systems, addressing common misconceptions and the pitfalls of overreliance on Li+ design principles. Leveraging the unique characteristics of Na+, it comprehensively
Xingxing Wang, Ziyu Song, Wenfang Feng, Moritz Schütte, Sascha Berg, Feng Cai, Viviane Maccio‐Figgemeier, Dirk Uwe Sauer, Stefano Passerini, Michel Armand, Zhibin Zhou, Egbert Figgemeier, Heng Zhang, Gebrekidan Gebresilassie Eshetu   +13 more
wiley   +1 more source

Development and Validation of a Next‐Generation Mechanistic Model of the Electric Arc Furnace

steel research international, EarlyView.
This study presents a next‐generation mechanistic model of the electric arc furnace (EAF). It describes equations for all crucial processes appearing during the steel‐recycling process in an EAF, i.e., thermal, mass, and chemical. The model was parameterized and validated using industrial EAF data.
Vito Logar, Igor Škrjanc
wiley   +1 more source

Oxide Scale Morphology of Carbon Steels Under Novel Reheating Conditions

steel research international, EarlyView.
This study focuses on the changes in oxide scale morphology formed under simulated hydrogen and oxy‐fuel reheating gas atmospheres in comparison to natural gas‐air reheating. Several different properties were analyzed, such as pore structure, ratios of iron oxides, adhesion, and distribution of alloying elements.
Juho Haapakangas, Susanna Airaksinen, Eetu‐Pekka Heikkinen, Timo Fabritius   +3 more
wiley   +1 more source