Black Titanium DioxideJan 16, 2019 | ACS MATERIAL LLC
Titanium Dioxide (TiO2) nanomaterials have been used primarily as photocatalysts over past few decades, however, its wide band gap largely limited TiO2 activity to the UV region of the solar spectrum. The discovery of ‘‘black’’ titanium dioxide nanoparticles with visible infrared absorption opened up all new possibilities in this sector. Since the discovery of black titanium dioxide, world-wide research initiatives have been launched for the purpose of narrowing the band gap and overcoming that issue. Success in this endeavor could positively affect a wide array of applications in a …Read More
Si/C Composites for Battery MaterialsNov 06, 2018 | ACS MATERIAL LLC
Lithium-ion batteries (LIB’s) are well-suited for fully electric and hybrid electric vehicles due to their high specific energy and energy density in comparison to other rechargeable cell options, however, their suitability depends on the quality of the anode material within. Silicon Carbide (Si/C) composites are a semi conductive material where silicon is highly dispersed within a carbon matrix. Si/C composites exhibit not only acceptable faradaic yield at the first cycle, but also large capacity and good rechargeability. These are essential and highly desirable properties making Si/C …Read More
Mordenite ZeoliteOct 24, 2018 | ACS MATERIAL LLC
Mordenite (MOR) is a high-silica molecular sieve with two pore channels. It is synthesized by the hydrothermal method and has been effectively used in the adsorption and separation of gas or liquid mixtures involving acidic components. As a catalyst, mordenite zeolite is used in various important industrial reactions like hydrocracking, hydro-isomerization, alkylation, reforming and cracking.
Mordeniteis a silica-rich, large-pore zeolite that occurs readily in nature. Although mordenite occurs in nature as a mineral, synthetic mordenites are better suited in terms of …Read More
SSZ-13 ZeoliteOct 09, 2018 | ACS MATERIAL LLC
SSZ-13 molecular sieve is prepared by the hydrothermal method with silica sol, aluminium sulphate, sodium hydroxide and deionized water as raw materials, and N, N, N-trimethyl-l-adamant ammonium hydroxide as a template. Due to its specific surface area and distinctive eight-membered ring structure, SSZ-13 shows good applicability in separating N2 from CO2 in flue gas streams. Cation exchanged SSZ-13 can yield higher separation efficiency and it can also be used as a good catalyst in NH3 selective catalytic reduction (NH3-SCR), propylene production from ethylene, and methanol-to-olefins (MTO) …Read More
TS-1 Molecular SieveSep 18, 2018 | ACS MATERIAL LLC
Medium-pore TS-1 is a highly versatile zeolite with MFI structure that has been applied as an efficient catalyst in diverse industrial applications. TS-1 demonstrates unique catalytic performance in oxidation reactions involving H2O2 as an oxidant. TS-1 catalyst is highly effective in the selective oxidation of various organic substrates with hydrogen peroxide, including hydroxylation of aromatics, epoxidation of alkenes, ammoximation of ketones, oxidation of alkanes and alcohols, etc.
As an environmentally benign catalyst, the successful synthesis of titanium silicalite …Read More
Hexagonal Boron NitrideSep 06, 2018 | ACS MATERIAL LLC
Hexagonal Boron Nitride (h-BN) has recently gained strong interest as a strategic component in engineering Van der Waals heterostructures with two dimensional crystals such as graphene. h-BN film can be synthesized by chemical vapor deposition (CVD) on catalytic substrates and the atomic layers can be controlled by changing the precursors, growth time and cooling rates etc. The unique properties of h-BN film offer promising potential in physical, mechanical, optical, electronic and hybrid applications.
Boron Nitride (BN) is a typical III-V group compound with a …
SBA-15 Mesoporous Molecular SieveAug 16, 2018 | ACS MATERIAL LLC
SBA-15 molecular sieve is prepared by the hydrothermal method with triblock polymer pluronic P123 (EO20-PO70EO20), hydrochloric acid, tetraethyl orthosilicate (TEOS) and deionized water as raw materials. SBA-15 has an ordered structure that contains uni-dimensional mesopores of uniform size ranging from about 4 to 30 nm.1 Unique properties of SBA-15 include uniform and adjustable pore size, thick pore walls, superior hydrothermal/thermal and mechanical stability, high surface area, high pore volume and open pore structure. All of these properties render it highly valuable in a wide variety of …Read More
Introduction to ZeolitesJul 15, 2018 | ACS MATERIAL LLC
Zeolites, which are also called molecular sieves, are crystalline microporous materials formed primarily by SiO4 and AlO4 corner-sharing tetrahedral building units that form three-dimensional (3D) frameworks with well-defined channels and cavities of molecular dimensions. The void space within the crystal allows zeolites to discriminate molecules based on their size or geometric shape. With variable chemical compositions and unique pore topologies, zeolites have been utilized in a wide range of industrial applications such as adsorption/separation, ion-exchange processes and also as catalysts …Read More
GlowDotsMay 29, 2018 | ACS MATERIAL LLC
Facile synthesis of multi-colored, protein-based, metal-free, stable, nontoxic and pH sensitive advanced functional nanoparticles (GlowDots) is now a reality. Controlled cross-linking of bovine serum albumin has resulted in the formation of spherical nanoparticles of 35 nm in diameter with a size distribution of ±10 nm. The nanoparticles are then conjugated with specific dyes to produce white-emitting particles with tunable excitation wavelengths. These nanoparticles are a chemical novelty because their particle size, size distribution, stability, surface chemistry and emission properties …Read More
FluoDotsMay 22, 2019 | ACS MATERIAL LLC
FluoDots are single protein nanoparticles labeled with particular fluorescent dyes for imaging and other applications. They are composed of a central protein core surrounded by a covalently attached lipid layer. FluoDots retain the structure and functions of the protein embedded in the core, however the particles have increased thermal stability and a longer shelf life. Numerous carboxylic groups present on the surface of FluoDots are available for further chemical modification of the particles. FluoDot size is tunable at 2.5 Å resolution and the color is tuned independently of the size, …Read More