Photovoltaic-powered supercapacitors for driving overall water splitting:A dual-modulated 3D architecture

Due to the growing demand for clean and renewable hydrogen fuel,there has been a surge of interest in electrocatalytic water-splitting devices driven by renewable energy sources.However,the feasibility of self-driven water splitting is limited by inefficient connections between functional modules,lack of highly active and stable electrocatalysts,and intermittent and unpredictable renewable energy supply.Herein,we construct a dualmodulated three-dimensional(3D)NiCo_(2)O_(4)@NiCo_(2)S_(4)(denoted as NCONCS)heterostructure deposited on nickel foam as a multifunctional electrode for electrocatalytic water splitting driven by photovoltaic-powered supercapacitors.Due to a stable 3D architecture configuration,abundant active sites,efficient charge transfer,and tuned interface properties,the NCONCS delivers a high specific capacity and rate performance for supercapacitors.A twoelectrode electrolyzer assembled with the NCONCS as both the anode and the cathode only requires a low cell voltage of 1.47 V to achieve a current density of 10 mA cm^(−2) in alkaline electrolyte,which outperforms the state-of-the-art bifunctional electrocatalysts.Theoretical calculations suggest that the generated heterointerfaces in NCONCS improve the surface binding capability of reaction intermediates while regulating the local electronic structures,which thus accelerates the reaction kinetics of water electrolysis.As a proof of concept,an integrated configuration comprising a two-electrode electrolyzer driven by two series-connected supercapacitors charged by a solar cell delivers a high product yield with superior durability.

Research Progress of Traditional Chinese Medicine in the Treatment of Acute Respiratory Distress Syndrome

Based on the modern pathological research mechanism of ARDS,this paper summarizes the clinical therapeutic effect of traditional Chinese medicine on ARDS from the aspects of reducing inflammatory mediators,cells and factors,regulating signal pathway,regulating aquaporin,anticoagulation and so on.The purpose is to provide new theoretical basis and ideas for scholars in the future,and to improve the internationalization process of traditional Chinese medicine in the treatment of acute respiratory distress syndrome.

Advances in Research of Pharmacological Action and Mechanism of Tibetan Medicine Ranasampel

Qishiwei Zhenzhu Wan(Ranasampel)was included in Chinese Pharmacopoeia and consists of 70 kinds of traditional Chinese medicines,including Zogta,Margarita,Croci Stigma,Santali Albi Lignum,and Dalbergiae Odoriferae Lignum,etc.At present,research on the pharmacological effects of Ranasampel is mainly focused on anti-Alzheimer's disease,anti-cerebral ischemia-reperfusion injury,anti-Parkinson,improving learning and memory ability,and anti-myocardial ischemia.The mechanisms involved include nervous,cardiovascular and other systems.This article systematically expounded the pharmacological effects and mechanism of Ranasampel,in order to provide a certain theoretical reference for its future further research and clinical application.