The high-efficiency coupling of a Ni coordinated/uncoordinated pyridine N-COF self-supporting nanofilm as an asymmetric supercapacitor.

A large-area COF film with a pore size of 3.9 nm was prepared on a gas-liquid interface by the virtue of the limiting and guiding functions of sodium dodecylbenzene sulfonate, followed by modification by Ni ions with the reversible redox reaction of Ni(II/III), where Ni was evidently anchored on the N in BPY. The obtained COF and Ni-COF nanofilms could avoid the inevitable aggregation and stacking of bulk COF, which facilitated a high specific capacitance of 0.

Two Birds with One Stone: Micro/Nanostructured SiO C Composites for Stable Li-Ion and Li Metal Anodes.

Developing stable silicon-based and lithium metal anodes still faces many challenges. Designing new highly practical silicon-based anodes with low-volume expansion and high electrical conductivity, and inhibiting lithium dendrite growth are avenues for developing silicon-based and lithium metal anodes, respectively. In this study, SiO C microtubes are synthesized using a chemical vapor deposition method.

SiOC Microspheres with Homogeneous Atom Distribution for a High-Performance Li-Ion Battery.

The broad application of silicon-based materials is limited by large volume fluctuation, high preparation costs, and complicated preparation processes. Here, we synthesized SiOC microspheres on 3D copper foams by a simple chemical vapor deposition method using a low-cost silane coupling agent (KH560) as precursors. The SiOC microspheres are available with a large mass loading (>3 mg/cm) on collectors and can be directly used as the electrode without any binders or extra conductive agents.

Practical and Sustainable Modification Method on Activated Carbon to Improve the Decolorization Process in the Acetaminophen Pharmaceutical Industry.

Decolorization plays an important part in the industrial production of acetaminophen (APAP) drugs. The impurities generated from the APAP pharmaceutical industry decolorization refining process were primarily separated and purified, and their structures were determined by MS and H NMR technology. Then the catalytic effects of three samples of modified powdered activated carbon (PAC) on APAP in heterogeneous solution systems and the adsorption catalysis system were systematically investigated, which indicated that PAC catalyzed the APAP oxidative coupling side reaction and thus increased the impurities in the APAP product.

Influence of Acid Treatment on the Loading and Release Behavior of Halloysite with 2-Mercaptobenzothiazole.

Halloysite nanotubes (HNTs) are natural clay minerals with a tubular structure. They have attracted considerable attention as a potential nanocontainer due to their abundance, biocompatibility and nontoxicity. In this study, HNTs were handled with H₂SO₄ at 70 °C.

Corrosion behavior of X65 steel in seawater containing sulfate reducing bacteria under aerobic conditions.

The corrosion behavior of X65 steel was investigated in the seawater inoculated with sulfate reducing bacteria (SRB) under the aerobic environment by electrochemical impedance techniques and immersion tests. The corroded morphologies and the composition of the corrosion products were investigated. The variation of the solution parameters including the bacterium number, the pH value and the soluble iron concentration were also investigated.