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Secondary Coordination Effects of Adjacent Metal Center in Metal-Nitrogen-Carbon Improve Scaling Relation of Oxygen Electrocatalysis.
J Phys Chem Lett
January 2025
Hefei National Research Center for Physical Sciences at the Microscale, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China.
Heterogenous single-atom catalysts (SACs) are reminiscent of homogeneous catalysts because of the similarity of structural motif of active sites, showing the potential of using the advantage of homogeneous catalysts to tackle challenges in hetereogenous catalysis. In heterogeneous oxygen electrocatalysis, the homogeneity of adsorption patterns of reaction intermediates leads to scaling relationships that limit their activities. In contrast, homogeneous catalysts can circumvent such limits by selectively altering the adsorption of intermediates through secondary coordination effects (SCEs).
View Article and Find Full Text PDFChallenges and opportunities in 2D materials for high-performance aqueous ammonium ion batteries.
Natl Sci Rev
February 2025
Engineering Research Center of Advanced Functional Material Manufacturing of Ministry of Education, School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China.
Aqueous ammonium ion batteries (AAIBs) have attracted considerable attention due to their high safety and rapid diffusion kinetics. Unlike spherical metal ions, NH forms hydrogen bonds with host materials, leading to a unique storage mechanism. A variety of electrode materials have been proposed for AAIBs, but their performance often falls short in terms of future energy storage needs.
View Article and Find Full Text PDFA modern scientific perspective on the flavor and functional properties of diverse teas in traditional cuisine "tea-flavored fish": From macroscopic quality to microscopic variations.
Food Chem X
January 2025
School of Public Health/ School of Basic Medical Sciences / Food Safety and Health Research Center/ Guangdong Provincial Key Laboratory of Tropical Disease Research/ BSL-3 Laboratory (Guangdong), Southern Medical University, Guangzhou, Guangdong Province 510515, China.
The historical appreciation of tea dates back to ancient times, while technological limitations have long hindered in-depth exploration of its flavor complexity and functional attributes. This study investigated the effects of various teas on a traditional delicacy, "tea-flavored fish", using teas processed via traditional methods. Analysis of functional components revealed that processing and fermentation reduced catechin levels (186.
View Article and Find Full Text PDFExploring the Impact of Ionic Additives on the Structure and Energetics of Dye-Sensitized NiO Interfaces: Insights from Electrochemistry and First-Principles Calculations.
ACS Appl Mater Interfaces
January 2025
Université de Lorraine and CNRS, LPCT, UMR 7019, F-54000 Nancy, France.
The efficient functioning of dye-sensitized solar cells (DSSCs) is governed by the interplay of three essential components: the semiconductor, the dye, and the electrolyte. While the impact of the electrolyte composition on the device's performance has been extensively studied in n-type DSSCs, much less is known about p-type-based devices. Here, we investigate the effect of potential-determining ions on the energetics and stability of dye-sensitized NiO surfaces by using electrochemical, ab initio molecular dynamics simulations, and ab initio electronic structure calculations.
View Article and Find Full Text PDFA portable paper-based surface enhanced Raman scattering platform for Al sensing.
Spectrochim Acta A Mol Biomol Spectrosc
January 2025
College of Chemistry, Liaoning University, Shenyang 110036, China. Electronic address:
The adverse effects of Al ions on human health necessitate the development of ultra-sensitive detection methods for Al ions. In this regard, the compact and portable design of the detection substrate is of utmost importance for achieving in-situ and sensitive detection of Al ions. In our study, we have successfully developed a surface-enhanced Raman scattering (SERS) platform with gold nanoparticles (Au NPs) that was modified with histidine (His) and 4-mercaptobenzoic acid (4-MBA) for the SERS detection of Al ions.
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