In this work, ultrafine nickel–copper carbonate hydroxide nanowire arrays on copper foam are synthesized via a facile hydrothermal method without any adscititious surfactant and binder. The fabricated nickel–copper carbonate hydroxide hierarchical nanowire networks electrodes for supercapacito...

Electrode material is the key component of a supercapacitor, the highly accessible surface area, efficient electrons/ions migration channels, robust structural stability and redox activity of electrode material are pivotal prerequisites for harvesting optimal capacitive performance. Herein, a te...

To remove toxic Ni(II) ions from wastewater, a novel flower globular magnesium hydroxide (FGMH) was prepared by a gentle method using trisodium citrate as a crystal modifier. This material exhibited a high specific surface area. The synthesized products and adsorption mechanism for Ni(II) ions w...

Hydrothermally prepared α-nickel hydroxide had strong hydroxide bond vibrations and carbonate ion is intercalated in the basal spacing between the hydroxide layers. The morphological analysis reveals the flower-like morphology of the material. The electrochemical performance of the material was...

An environmentally friendly method for synthesizing a dawsonite conversion film was developed to improve the corrosion resistance of AZ31 Mg alloy. The film was prepared by two steps: the AZ31 alloy was first immersed in an Al2(SO4)3 solution venting CO2 gas to form a precursor film, and then th...

Clofibric acid (CFA) degradation by ozonation in the presence of Cu-dawsonites was studied. Cu-dawsonite materials were synthesized via co-precipitation of Al(NO3)3 and Cu(NO3)2 by (NH4)2CO3 at pH 7.5–8.0. The as-synthesized and the calcined samples were characterized using XRD, FTIR, N2-physis...

Gibbsite [Al(OH)3] and boehmite (AlOOH) have long been assumed to be the most prevalent aluminum-bearing minerals in Hanford high-level nuclear waste sludge. The present study shows that dawsonite [NaAl(OH)2CO3] is also a common aluminum-bearing phase in tanks containing high total inorganic car...

As-synthesised and reconstructed NH4-Al-dawsonite and NH4-Ga-dawsonite, and the materials obtained by thermal treatment in the range 373–873 K, were studied as heterogeneous catalysts for the epoxidation of cyclooctene with hydrogen peroxide at 353 K and ambient pressure by means of High-Throug...

The frequency dependent optical and dielectric properties of boehmite (AlOOH) and ammonium aluminum carbonate hydroxide (AACH) nanostructures, prepared at different temperatures via hydrothermal synthesis, were studied by using terahertz time domain spectroscopy (THz-TDS). The complex refractive...

A large amount of thin-film dawsonite has developed in coal cleats and also in fractures within the roof sandstone in Jurassic CO2-rich coal measure strata of the Yaojie coalfield, Minhe Basin, China. The CO2 in these strata has been in a supercritical state since natural emplacement. In this st...

The textural properties of γ-alumina catalyst supports largely depend on the solid properties of their precursors. Precipitation in fast contacting mixers of two precursors, boehmite and NH4-dawsonite, were investigated in order to obtain different and enhanced solid features. The mixing device...

In this work we have studied the mineral dawsonite by using a combination of scanning electron microscopy with EDS and vibrational spectroscopy. Single crystals show an acicular habitus forming aggregates with a rosette shape. The chemical analysis shows a phase composed of C, Al, and Na. Two di...

The abundance of dawsonite in an exploration well in the Green River Formation oil shale has been characterized by well logging, FTIR, DSC, and wet chemistry. The four methods agree qualitatively but not quantitatively. Thermal analysis was then used to characterize changes in the dawsonite deco...

The sorbent enhanced water-gas shift (SEWGS) process has great potential for CO2 capture and is thereby a realistic alternative to conventional post-combustion capture by gas emission scrubbing. Nevertheless, better performing materials are required to make SEWGS competitive against state-of-the...

The synthesis of new stannates, [Et3NMe]2[R2Sn(OSO2Me)4] [R = Me (1), Et (2), Ph (3)] and [Et3NMe][Ph3Sn(OSO2Me)2] (4) has been achieved from a one pot reaction between R2SnO (R = Me, Et, Ph) or (Ph3Sn)2O and dimethylsulfite [(MeO)2S = O] in the presence of triethylamine. An important step in th...

We report a novel technique to fabricate bismuth stannate/[email protected] chloride (Bi2Sn2O7/[email protected]) films on conventional glass substrates. The film exhibited a remarkable self-cleaning capability against organic dyes under visible light. Porous Bi2Sn2O7 (BSO) film was first sinter...

With MnSO4, NaOH and K2S2O8 as the raw materials, the amorphous and δ-type manganese dioxide (MnO2) is separately prepared by using different chemical precipitation-oxidation methods. The results of charge–discharge and electrochemical impedance spectroscopy (EIS) tests show that (i) the speci...

Manganese-containing bismuth titanate solid solutions with a pyrochlore-type crystal structure were obtained by the ceramic technique over a wide range of compositions. The NEXAFS (near-edge X-ray absorption fine structure) spectra of Mn2p-absorption in bismuth manganese titanate pyrochlores poi...

It is shown that MnTe-Bi2Te3 system is quasi-binary and in fact hosts three intermediate phases. Along with already known MnBi2Te4 phase, another two, MnBi4Te7 and MnBi6Te10 have been found to exist. All the phases melt incongruently in a very narrow temperature range of 577–590 °C via peritec...

Heats of formation in the Dy-Bi system have been measured using a small furnace isoperibol calorimeter. The composition and states of the alloys were checked by chemical, metallographic and X-ray analyses. For the Dy-Bi compounds the following values were obtained for reaction in the solid state...