Hierarchical ZSM-5 zeolite is hydrothermally synthesized in a single step with cetyltrimethylammonium (CTA) hydroxide acting as mesoporogen and structure-directing agent. Essential to this synthesis is the replacement of NaOH with KOH. An in-depth solid-state NMR study reveals that, after early electrostatic interaction between condensed silica and the head group of CTA, ZSM-5 crystallizes arou...

Unique room temperature-formed iron-doped nickel hydroxide on Ni foam as a 3D electrode in alkaline electrolyte offers fast gas dissipation, a high number of active sites and a high oxidation state of Ni for an improved oxidation ability for the oxygen evolution reaction (OER), which delivers an OER current density of 100 mA cm-2 at an overpotential of 0.312 V and 96.3% retention after 100 h at...

Sustainable synthesis schemes for the production of porous carbons with appropriate textural properties for use as supercapacitor electrodes are in high demand. In this work a greener option to the widely used but corrosive KOH is proposed for the production of highly porous carbons. Hydrochar products are used as carbon precursors. It is demonstrated that a mild alkaline potassium salt such as...

Lanthanum hydroxide (La(OH)3) nanostructures, including elliptical nanoparticles, octahedral rods and irregular nanoparticles were prepared chemically in NaOH and KOH solutions with 10 M concentration. The obtained powders were characterized with XRD, SEM, TEM and DTA. Crystallinities, morphologies and thermal behavior of the obtained nanostructure powders were investigated under the influence ...

An agro-waste/wood-dust of Dalbergia sisoo (Sisau)derived activated carbons have been applied as a potential adsorbent to remove anionic dye “Eosin Y” from aqueous solution. The were synthesized by carbonization technique. chemical activation was done impregnating with three different agents, i.e. acid, base and salt, namely phosphoric acid (H3PO4) , potassium hydroxide (KOH) sodium carbonate (...

The mining industry generates large quantities of waste as tailings. tailings have an adverse environmental impact. This study explored the utilization and stabilization Barberton gold mine (GMTs) basic oxygen furnace slag (BOFS) to synthesize geopolymers for other applications. geochemical, chemical, geotechnical properties GMT, BOFS, GMT geopolymer, GMT: BOFS geopolymer were also studied. Sod...

Background: Tinea corporis is a superficial fungal infection of the glabrous skin of the trunk and extremities caused by closely related organisms of the three genera – Trichophyton, Microsporum, and Epidermophyton, collectively known as dermatophytes. The prevalence of the different species varies according to geographic and climatic regions. Trichophyton rubrum has been reported from various ...

The cleavage of decanethioacetate (C10SAc) has been studied by (1)H nuclear magnetic resonance (NMR) spectroscopy and scanning tunneling microscopy (STM) imaging of in situ prepared decanethiolate self-assembled monolayers (SAMs) on Au(111). Solutions of C10SAc (46 mM) and previously reported cleavage reagents (typically 58 mM) in CD(3)OD were monitored at 20 degrees C by NMR spectroscopy. Clea...

In biomass thermal conversion processes, the release of potassium in high temperature environments crucially influences operating efficiency and safety. The dominant species can be hydroxide (KOH) and/or chloride (KCl). We report a species-specified quantitative measurement combustion using laser-induced photofragmentation fluorescence (LIPF). Ultraviolet (UV) light sources with different wavel...

Photofragmentation tunable diode laser absorption spectroscopy (PF-TDLAS) was used to simultaneously measure the concentrations of gas phase atomic potassium (K), hydroxide (KOH) and chloride (KCl) in reactor core a 140 kWth atmospheric entrained-flow gasifier (EFG). In two gasification experiments at air-to-fuel equivalence ratio 0.5, EFG first run on forest residues (FR) then an 80/20 mixture...