Recent Advances and Future Perspectives of Metal-Based Electrocatalysts for Overall Electrochemical Water Splitting.

Recently, the growing demand for a renewable and sustainable fuel alternative is contingent on fuel cell technologies. Even though it is regarded as an environmentally sustainable method of generating fuel for immediate concerns, it must be enhanced to make it extraordinarily affordable, and environmentally sustainable. Hydrogen (H ) synthesis by electrochemical water splitting (ECWS) is considered one of the foremost potential prospective methods for renewable energy output and H society implementation.

Terpyridine-derived perovskite single crystals with tunable structures and electronic dimensionality.

Dimensionality engineering has proved to be a reliable strategy for addressing the issue of perovskite stability. In this study, a series of previously unreported low-dimensional organic-inorganic hybrid perovskite single crystals were designed and grown by following a simple hydrothermal approach involving solution processing. The as-prepared terpyridine-derived perovskite single crystals displayed tunable structures and electronic dimensionality, which was closely associated with the crystal growth conditions.

Architecturing 1D-2D-3D Multidimensional Coupled CsPbI Br Perovskites toward Highly Effective and Stable Solar Cells.

Despite the rapid development of CsPbI Br (0 ≤ x ≤ 3) inorganic perovskite solar cells, associated with their superior thermal stability, their low moisture stability limits their commercial deployment. In this study, 1D-2D-3D multidimensional coupled perovskites are prepared by means of an in situ self-integration approach. This pioneering method allows incorporating thus far unreported 1D-Tpy Pb I and 2D-TpyPb I (Tpy; terpyridine) perovskites.

Background noise analysis and improvement for the water vapor and oxygen transmission rate test of free-standing films.

The background noise (BGN) of test equipment affects the lower detection limit of the measurement range, and achieving an ultralow BGN is identified as a formidable challenge for highly accurate testing of a free-standing film. In this paper, a new gas transmission rate test apparatus is designed by detecting the electrical resistance increase with calcium corrosion. Thanks to the new design strategy, the only permeable place of this apparatus is the clamping and holding site.

Engineered Electronic Structure and Carrier Dynamics in Emerging CsAgNaFeCl Perovskite Single Crystals.

Lead-free double perovskites have attracted noteworthy attention due to their compositional flexibility and electronic diversity. In this study, we hydrothermally grow a new class of CsAgNaFeCl (0 ≤ ≤ 1) perovskite single crystals with high thermal stability. The substitution of B-site cation allows to regulate the crystallographic and band structure, which gives rise to enlarged band absorbance close to the near-infrared region (∼800 nm) via composition engineering.

Synthesis and optimization of the trimesic acid modified polymeric carbon nitride for enhanced photocatalytic reduction of CO.

The conjugated co-monomer, trimesic acid (TMA) was integrated into the triazine framework of polymeric carbon nitride (PCN), synthesized through chemical condensation of urea. The TMA-modified carbon nitride samples obtained were named as CNU-TMA and it was utilized for the photocatalytic reduction of carbon dioxide (CO) under visible light illumination. The induction of such electron donor-acceptor co-monomer (TMA) dominates the intramolecular structure of PCN by acting as a nucleophilic substitution substrate to facilitate the electron density in the π-electron conjugated system of PCN and thus elevate its photocatalytic activity.

Isolation and identification of phenolic antioxidants from gall and their anticholine esterase activities.

The galls of are utilized in folk medicines for the treatment of cough, asthma, dysentery, liver disorders and for snake bite. A number of biological active compounds like alkaloids, flavonoids, tannins, saponins and sterols from leaf, stem, bark, galls and fruit of this plant have been isolated. A number of authors have attempted to evaluate the medicinal potentials of this plant.

Outcome of continuous renal replacement therapy in critically ill children: a retrospective cohort study.

Background: Continuous renal replacement therapy (CRRT) has become the preferred mode of dialysis to support critically ill children with acute kidney injury. However, there are limited pediatric data on CRRT use, especially in our region.

Objective: Determine the outcome of CRRT among critically ill children.