CeO2 nanooctahedrons, nanorods, and nanocubes were prepared by the hydrothermal method and were then used as supports of Cu-based catalysts for the water-gas shift (WGS) reaction. The chemical and physical properties of these catalysts were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), N2 adsorption/desorption, UV-Vis spectroscopy, X-ray photoelectron spectro...

Successful intraportal islet transplantation normalizes glucose metabolism in diabetic humans. To date, full function is not routinely achieved after islet transplantation in humans, with most grafts being characterized by only partial function. Moreover, the duration of full function is variable and cannot be sufficiently predicted with available methods. In contrast, most grafts retain partia...

Bimetallic Ni-Cu/SiO2 catalysts with different Cu loading (2–5 wt%) were developed for liquid phase selective hydrogenation of furfural to furfuryl alcohol. Among these, bimetallic 2%Ni-X%Cu/SiO2 (X = 2, 5) exhibited better catalytic performances than monometallic 2%Ni/SiO2 and 2%Cu/SiO2. Moreover, the 2%Ni-5%Cu/SiO2 catalyst showed best performance 94% conversion 64% alcohol selectivity. The s...

The present study aims to clarify the impact of Cu addition and aging conditions on microstructure development mechanical properties Sn-9Zn binary eutectic alloy. alloys with varying content (0, 1, 2, 3, 4 wt.%) were fabricated by permanent mold casting. X-ray diffraction (XRD) scanning electron microscopy (SEM) techniques utilized investigate influence concentration pre-aged Sn-9Zn-Cu alloys. ...

Approximately 10% of the cases of amyotrophic lateral sclerosis (ALS) are inherited, with the majority of identified linkages in the gene encoding Cu/Zn superoxide dismutase (SOD1). Recent studies showed that human wild-type SOD1 (SOD1(WT)) overexpression accelerated disease in mice expressing human SOD1 mutants linked to ALS. However, there is a controversy whether the exacerbation mechanism o...

Metallography, SEM-EDS, and Raman Micro-Spectroscopy analysis were conducted on bronze dirk, sword, mirror excavated from the pit tomb No. 1-1 at 12th Point of Osong Site in Cheongju to study manufacturing techniques corrosion properties. The sword are judged be binary alloys Cu(79.16∼79.89 wt%)-Sn (19.12∼20.34 wt%). microstructure is a cast structure composed δ phase (α+δ) eutectoid, no heat t...

In this paper, various mass fractions (0, 0.2, 0.4, 0.6, 0.8, 1.0 wt%) of silicon carbide nanowires (SiC NWs) were incorporated into pure Sn solder to enhance the performances joint. The wetting behavior, shear strength, and intermetallic compound (IMC) growth mechanism Sn–xSiC/Cu during solid–liquid diffusion at 250 °C investigated systematically. experimental results demonstrated that wettabi...

BACKGROUND Alkaline hydrogen peroxide pretreatment catalyzed by Cu(II) 2,2'-bipyridine complexes has previously been determined to substantially improve the enzymatic hydrolysis of woody plants including hybrid poplar as a consequence of moderate delignification. In the present work, cell wall morphological and lignin structural changes were characterized for this pretreatment approach to gain ...

In this study, we investigated the microstructure, mechanical properties, and thermal performance of Sn-xBi-1Ag (x = 35, 37, 45, 47 wt.%) solders, with a particular focus on effect adding trace Si atoms. The impact different Ag concentrations properties Sn-xBi-Ag-0.5Si solders was also studied. results indicated that as amount Bi added to solder alloys increased, tensile strength, microhardness...