Results 91 to 100 of about 1,030,475 (236)

Synthesis of Ladder and Flexible Polysulfonimides Directly From Anionic Monomers: Investigating Structure–Property Convergence in Succinonitrile–Polymer Electrolyte Blends

open access: yesAngewandte Chemie, EarlyView.
Direct synthesis of sulfonimide‐based polymers of intrinsic microporosity enables comparison with compositionally similar flexible analogs. Incorporation of a common pore‐filling transport medium drives these fundamentally different polymer architectures toward similar bulk conductivity and mechanical properties while revealing distinct microscopic ion‐
Abraham Herzog‐Arbeitman   +8 more
wiley   +2 more sources

Comparative Insights and Overlooked Factors of Interphase Chemistry in Alkali Metal‐Ion Batteries

open access: yesAdvanced Energy Materials, EarlyView.
This review presents a comparative analysis of Li‐, Na‐, and K‐ion batteries, focusing on the critical role of electrode–electrolyte interphases. It especially highlights overlooked aspects such as SEI/CEI misconceptions, binder effects, and self‐discharge relevance, emphasizing the limitations of current understanding and offering strategies for ...
Changhee Lee   +3 more
wiley   +1 more source

Effects of hydrogen concentration on the emission and heat transfer of a premixed LPG-hydrogen flame

open access: yes, 2012
This paper describes an experimental study of the effect of hydrogen concentration on the emission and heat transfer characteristics of a laminar premixed LPG-hydrogen flame.
Choy, YS   +3 more
core   +1 more source

Modulation of Local Environment for Selective Bicarbonate Conversion to Multi‐Carbon Products

open access: yesAdvanced Energy Materials, EarlyView.
Highly porous Cu electrode partially coated with an ionomer/carbon composite enables efficient conversion of bicarbonate to multi‐carbon products. By regulating the local reaction microenvironment, this strategy overcomes selectivity and reaction‐rate limitations, achieving Faradaic efficiencies of 43% for ethylene and 60% for total multi‐carbon ...
Tai Nguyen   +15 more
wiley   +1 more source

Desenvolvimento de método de medição simultâneo de velocidade de chama laminar e energia de ativação aparente e aplicação em misturas combustíveis com baixo poder calorífico [PDF]

open access: yes, 2014
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2014.Syngas e biogás são combustíveis de baixo poder calorífico que podem ser obtidos a partir da biomassa ...
Francisco Júnior, Roberto Wolf
core  

Simultaneous Electronic and Crystallographic Modulation of Cs3Bi2Br9 by Single‐Element Sn Substitution for Enhanced CO2 Photoreduction

open access: yesAdvanced Energy Materials, EarlyView.
Aliovalent B‐site substitution with Sn2+ in lead‐free perovskite, Cs3Bi2Br9, is employed to simultaneously induce lattice contraction and bromine vacancy through charge imbalance and ionic radius mismatch. The resulting structural distortion modulates the electronic structure and improves charge separation, leading to enhanced visible‐light‐driven CO2 ...
Justin Khor   +7 more
wiley   +1 more source

Optical investigations on hydrogen/methane‑oxygen flame diluted by steam in micro-mixing burners

open access: yesFuel Processing Technology
Motivated by the goal of zero-emission power generation, the current paper investigates the micro-mixing combustion of hydrogen/methane and oxygen under steam diluted conditions, over a range of oxygen mole fraction (0.05–0.5) and hydrogen blending power
Xiangnan Chen   +6 more
doaj   +1 more source

Breaking the Polarity–Coordination Coupling in Electrolyte Design for High‐Voltage Lithium Batteries

open access: yesAdvanced Energy Materials, EarlyView.
Steric and electronic co‐regulation of 2,2,2‐trifluoro‐N, N‐dimethylethylamide (DMTFA) decouples high polarity from strong Li+ coordination, creating an anion‐mediated pseudo‐weakly solvating electrolyte. This design lowers Li+ desolvation barriers, enhances Li+ mobility, and builds B‐, F‐, and N‐rich inorganic interphases, enabling stable 3.0–4.6 V ...
Xue Li   +9 more
wiley   +1 more source

Numerical Simulation Data Versus PIV Measurement Data for a Hydrogen-Fueled Afterburner System

open access: yesFuels
The global concern regarding the reduction of carbon emissions has led to the development of hydrogen as a clean, carbon-free fuel for combustion systems.
Andreea Cristina Mangra   +2 more
doaj   +1 more source

Effect of hydrogen percentage and air jet Reynolds number on fuel lean flame stability of LPG-fired inverse diffusion flame with hydrogen enrichment

open access: yes, 2014
The flame type studied in this paper is a circumferential-fuel - jet inverse diffusion flame, and the fuel is liquefied petroleum gas enriched with hydrogen gas.
Leung, CW, Cheung, CS, Miao, J
core   +1 more source

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