Results 61 to 70 of about 26,195 (294)

Halide Perovskite Integrated Photovoltaic Cathodes Incorporating Pt on ZIF‐8‐Derived Carbon for Solar Hydrogen Production

open access: yesAdvanced Functional Materials, EarlyView.
A low‐Pt catalyst supported on zeolitic imidazolate framework (ZIF‐8)‐derived porous carbon and graphite is integrated with a halide perovskite photovoltaic, yielding cathodes that achieve a high photocurrent density (∼20 mA cm−2) under simulated sunlight and exhibit remarkable stability in acidic media over several days, thereby demonstrating a ...
Na Yeong Oh   +12 more
wiley   +1 more source

Non-isothermal crystallization kinetics of syndiotactic polystyrene polystyrene functionalized SWNTs nanocomposites

open access: yeseXPRESS Polymer Letters, 2007
Non-isothermal crystallization kinetics were characterized by using differential scanning calorimetry (DSC) analysis on neat semicrystalline syndiotactic polystyrene (sPS) and its nanocomposites with polystyrene (PS) functionalized full-length single ...
doaj   +1 more source

Bismuth‐Based Photocatalysts for Water Remediation: Design Strategies, Mechanisms, and Challenges

open access: yesAdvanced Functional Materials, EarlyView.
This review highlights representative design strategies for bismuth‐based semiconductor photocatalysts in solar‐driven water purification. Emphasis is placed on electronic structure regulation, oxygen‐vacancy engineering, and interfacial coupling to enable efficient full‐spectrum light utilization, improved charge separation, and selective oxidation in
Shan Liu   +9 more
wiley   +1 more source

Crystallization Kinetics of an Equimolar Liquid Crystalline Mixture and Its Components

open access: yesApplied Sciences
This new equimolar mixture comprises the liquid crystalline compounds MHPOBC and partially fluorinated 3F2HPhF6. The phase sequence of the mixture was determined by differential scanning calorimetry, polarizing optical microscopy, X-ray diffraction, and ...
Aleksandra Deptuch   +5 more
doaj   +1 more source

Effect of Comb-Type Copolymers on the Non-Isothermal Crystallization Behavior of Paraffin in Methyl Ethyl Ketone (MEK)–Toluene Dewaxing

open access: yesEnergies, 2022
Two comb-type copolymers were synthesized by modifications of the maleic anhydride-α-octadecene copolymer with aniline (AMAC) and with phenethylamine (EMAC), respectively. The effects of AMAC and EMAC on the non-isothermal crystallization kinetics of the
Ying Xiong   +7 more
doaj   +1 more source

Non-isothermal Crystallization Behaviors of HDPE/MWCNT Nanocomposites

open access: yesAIP Conference Proceedings, 2011
Thermal properties and non‐isothermal crystallization kinetics of polyolefin nanocomposites (high‐density polyethylene/multi‐walled carbon nanotubes) were characterized by differential scanning calorimetry and thermogravimetric analysis. In situ metallocence polymerization was used to prepare nanocomposites of multi‐walled carbon nanotubes (MWCNTs) and
Jihun Kim   +3 more
openaire   +2 more sources

Non-isothermal crystallization transformation kinetics analysis and isothermal crystallization kinetics in super-cooled liquid region (SLR) of (Ce0.72Cu0.28)90 - XAl10Fex (x = 0, 5 or 10) bulk metallic glasses [PDF]

open access: yes, 2015
cited By 7International audienceCrystallization transformation kinetics in the non-isothermal and isothermal modes of (Ce0.72Cu0.28)90 - xAl10Fex (x = 0, 5 or 10) bulk metallic glasses was studied by differential scanning calorimetry (DSC).
Zhang, C.   +4 more
core   +1 more source

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

open access: yesAdvanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje   +7 more
wiley   +1 more source

Non-isothermal crystallization and melting of ethylene-vinyl acetate copolymers with different vinyl acetate contents

open access: yeseXPRESS Polymer Letters, 2008
Non-isothermal crystallization and subsequent melting of three grades of ethylene-vinyl acetate copolymer were investigated by differential scanning calorimetry (DSC) technique. The DSC crystallization curves show that vinyl acetate (VAc) content has the
doaj   +1 more source

Non-Isothermal Crystallization of Polymers [PDF]

open access: yes, 2013
Studie kinetiky krystalizace jsou omezené idealizovanými podmínkami, kde je například teplota konstantní (izotermní způsob krystalizace). Ve skutečnosti se však stavové vnější podmínky souvisle mění, což dělá průběh krystalizace závislým na okamžitých ...
Cabadajová, Iva
core  

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