A series of mono/bimetallic isostructural hybrid tetraborates of the general formula [ZnCo(1,3-dap)BO] has been prepared using a solvothermal method. Their adsorption/desorption curves for HO and DO demonstrate that these materials have a stronger affinity for HO than for DO and enrich the DO content of DO/HO mixtures.
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http://dx.doi.org/10.1039/d4dt00117f | DOI Listing |
J Colloid Interface Sci
December 2024
College of Chemistry and Materials Engineering, Bohai University, Jinzhou 121013, China. Electronic address:
The unique structure and strong interaction of multiphase hybrid materials have garnered significant attention as prospective candidates for electrode materials in the realm of energy storage. The present study presents a rational design of a functional NiSe-CoSe/N, B double-doped carbon hybrid composite (NCS/C), resulting in the emergence of various novel cooperative regulatory mechanisms involving: (i) the heterogeneous structure of NiSe and CoSe generates built-in electric fields to increase electron mobility; (ii) the incorporation of polyatomic double-doped carbon (N, and B) expedites electron transfer rate; intriguingly, (iii) ionic liquids not only serve as polyatomic dopants in the reaction system but also influence the microstructure of the composite. Benefiting from these synergistic effects, the NCS/C hybrid exhibits remarkable charge storage capacity and rapid electrochemical kinetics, driven by its multi-fold hollow structure and multicomponent cooperative modulation.
View Article and Find Full Text PDFSmall
December 2024
College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, 443002, P. R. China.
3D assembled carbon materials, featuring unique hierarchical porosity and interconnected channels, are essential for the advancement of emerging zinc-air batteries (ZABs). In this study, nitrogen (N) and sulfur (S) co-doped 3D carbon nanoholes (N/S-CNHs) are synthesized through a straightforward procedure involving self-assembly followed by carbonization. This process utilizes a hybrid of self-assembled covalent triazine framework and sodium lignosulphonate (CTF@LS) as a multifunctional precursor.
View Article and Find Full Text PDFJ Mater Chem B
December 2024
Department of Analytical Chemistry, Faculty of Chemistry, Alzahra University, P. O. Box 1993893973, Tehran, Iran.
This work aims to create an electrochemical sensor to detect paracetamol (PAR). The sensor is constructed by modifying an electrode with carbon paste and incorporating nanostructures of manganese cobaltite (MnCoO) onto reduced graphene oxide that is doped with nitrogen and boron (BN-rGO). MnCoO provides a stable structure and N, B-doped rGO enhances conductivity and provides additional active sites.
View Article and Find Full Text PDFSci Rep
November 2024
Department of Physics, Soongsil University, Seoul, 06978, South Korea.
Besides the symmetry breaking of Janus transition metal dichalcogenides (TMDs), Janus-based Diluted Magnetic Semiconductors (DMS) are attractive to study considering the local symmetry of transition metal (TM) dopant/adatom. This study conducts a first-principles calculation of magnetic properties in TM (V, Cr, Mn, Fe, and Co) -- doped and adsorbed Janus WSSe. Our results reveal that TM's atomic/ionic size impacts d-p-d orbital overlap, affecting bond length/angle and defect state positions.
View Article and Find Full Text PDFJ Colloid Interface Sci
February 2025
School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China. Electronic address:
Defect engineering has been widely applied to improve the hydrogen evolution reaction (HER) performance of MoS. In this work, a co-doped electrocatalyst on carbon fiber paper (CFP) for HER was prepared by coupling with simple hydrothermal and gas-phase phosphorylation process to improve the durability of the catalyst while enhancing the electrocatalytic performance (Fe-P-MoS/CFP). The results showed that the overpotential at a current density of 10 mA cm (η) of Fe-P-MoS/CFP was only 130 mV, which was much lower than those of other undoped and single-metal atom doping electrocatalysts.
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