Results 131 to 140 of about 169,539 (299)
, 2016 The effective removal of alkali in the alumina-extracted reside (AER) obtained by extracting alumina from high-alumina fly ash is the premise for realizing the utilization of the silicon component in the fly ash.
Tang, Zhenhua +4 more
core +1 more source
Advanced Science, EarlyView.A rational, solvent‐free synthesis utilizing 2,6‐diaminonaphthalene produces ultrabright green‐emissive carbon dots. Regulated by a self‐limiting oxidative capping mechanism, excitons undergo ultrafast intra‐particle funneling from the nitrogen‐doped carbon core to emissive surface traps.
Hyeonjin Park +8 more
wiley +1 more source
Properties and Preparation of Alumina Nanomaterials and Their Application in Catalysis
MicroNanomaterials are materials in which at least one dimension in three-dimensional space is at the nanoscale. In recent years, nano-alumina has attracted much attention due to its large specific surface area and pore volume, as well as novel optical ...
Hairuo Zhu +4 more
doaj +1 more source
Controlled Atom Transfer Radical Depolymerization
Advanced Science, EarlyView.Controlled atom transfer radical depolymerization allows for precise, uniform shortening of polymer chains to yield monomers on demand. By tuning catalyst concentration and temperature, this strategy prioritizes deactivation to maintain molecular weight control throughout depolymerization.
Dimitra Mantzara +4 more
wiley +1 more source
Influence factors on wear resistance of two alumina matrix composites
, 2008 We measured the wear resistances of alumina, alumina/silicon carbide composite and alumina/mullite composite by abrasive wear. And we studied the influence of fracture mode and worn surface pullout on wear resistance. The results are as follows: the main
Wang, TS +5 more
core
Advanced Science, EarlyView.Patterned light reorganizes initially uniform CsPbBr3 perovskite quantum dots into well‐defined structures during photopolymerization. Using a digital micromirror device, we show that this reaction‐driven self‐organization is governed by a competition between chemical‐potential‐driven migration and kinetic arrest caused by rapid solidification ...
Kazuto Uchida +3 more
wiley +1 more source
Carbon-driven Chemical Interactions between Alumina and Iron: A possible reaction pathway in Earth's interior [PDF]
, 2008 Seismological and geochemical observations have revealed a complex structure for the earth's core-mantle boundary (CMB) region, with lateral and chemical heterogeneities.
Rita Khanna +2 more
core
Excitation‐Selective Hydrochromic Upconversion in Zero‐Dimensional Metal Halides
Advanced Science, EarlyView.Excitation wavelength dictates whether moisture speaks. In zero‐dimensional metal halides, the same humidity leaves the upconversion emission unchanged under 980 nm excitation yet triggers a distinct green‐to‐red shift under 1550 nm. This excitation‐selective hydrochromism, governed by the absorption at each wavelength, enables stimulus‐dependent ...
Joo Hyeong Han +6 more
wiley +1 more source
Nonlinear Ion‐Specific Control of Underwater Adhesion by Bottlebrush Polymer Interfaces
Advanced Science, EarlyView.The efficiency of underwater adhesion is modulated by ion‐specific effects. Strongly hydrated Na+ remains separated from the mica surface by its hydration shell, preserving access to binding sites, whereas weakly hydrated K+ can partially dehydrate and occupy ditrigonal cavities.
Chang‐Sheng Wang +10 more
wiley +1 more source
Advanced Science, EarlyView.Distinct initial Cu coordination environments drive different pH‐dependent structural evolution pathways, resulting in divergent nitrate reduction activity and behavior. ABSTRACT Electrocatalytic nitrate reduction reaction (e‐NO3RR) offers a promising route to valorize nitrate‐contaminated wastewater while enabling sustainable ammonia production ...
Shih‐Ching Huang +11 more
wiley +1 more source