Опубликована: Фев. 7, 2025
Язык: Английский
Advanced Materials, Год журнала: 2023, Номер 36(3)
Опубликована: Июнь 17, 2023
Abstract In recent years, the emergence of novel 2D monoelemental materials (Xenes), e.g., graphdiyne, borophene, phosphorene, antimonene, bismuthene, and stanene, has exhibited unprecedented potentials for their versatile applications as well addressing new discoveries in fundamental science. Owing to unique physicochemical, optical, electronic properties, emerging Xenes have been regarded promising candidates community single‐atom catalysts (SACs) active sites or support matrixes significant improvement intrinsic activity selectivity. order comprehensively understand relationships between structure property Xene‐based SACs, this review represents a comprehensive summary from theoretical predictions experimental investigations. Firstly, calculations regarding both anchoring on doping/substituting heteroatoms at are briefly summarized. Secondly, controlled synthesis precise characterization presented SACs. Finally, current challenges future opportunities development SACs highlighted.
Язык: Английский
Процитировано
62
Advanced Functional Materials, Год журнала: 2023, Номер 34(4)
Опубликована: Окт. 20, 2023
Abstract Graphdiyne (GDY) is regarded as an exceptional candidate to meet the growing demand in many fields due its rich chemical bonds, highly π‐conjugated structure, uniformly distributed pores, large surface area, and high inhomogeneity of charge distribution. The extensive research efforts bring about a rapid expansion GDY with variety functionalities, which significantly enhance performance including photocatalysis, energy, biomedicine, etc. In this review, synthetic strategies (in situ ex approaches) that are designed rationally functionalize GDY, optimizing their nanostructures by surface/interface engineering dopants or functional groups (heteroatoms/small molecules/macromolecules), building up hierarchical GDY‐based heterostructures highlighted. Theoretical calculations on structural evolution electronic characteristics after functionalization briefly discussed. With elaborate rational structure engineering, applied emerging applications (e.g., hydrogen reaction, CO 2 reduction nitrogen energy storage conversion, nanophotonics, sensors, biomedical applications, etc.) comprehensively Finally, challenges prospects concerning future development nanoarchitectures also presented.
Язык: Английский
Процитировано
62
Chemical Science, Год журнала: 2024, Номер 15(14), С. 5082 - 5112
Опубликована: Янв. 1, 2024
This review systematically introduces how to regulate the electronic structure and geometric configuration of atomic catalysts achieve high-efficiency electrocatalysis performances by analyzing detailed electrocatalytic applications mechanisms.
Язык: Английский
Процитировано
57
National Science Review, Год журнала: 2023, Номер 10(8)
Опубликована: Май 24, 2023
ABSTRACT The development of catalysts that can selectively and efficiently promote the alkene epoxidation at ambient temperatures pressures is an important promising path to renewable synthesis various chemical products. Here we report a new type zerovalent atom comprised Ir atoms highly dispersed anchored on graphdiyne (Ir0/GDY) wherein Ir0 stabilized by incomplete charge transfer effect confined GDY natural cavity. Ir0/GDY produce styrene oxides (SO) electro-oxidizing (ST) in aqueous solutions with high conversion efficiency ∼100%, SO selectivity 85.5%, Faradaic (FE) 55%. Experimental density functional theory (DFT) calculation results show intrinsic activity stability due between effectively promoted electron exchange catalyst reactant molecule, realized selective ST SO. Studies reaction mechanism demonstrate proceeds distinctive pathway for active alkene-to-epoxide from traditional processes. This work presents example constructing metal within matrix toward electrocatalytic epoxidation.
Язык: Английский
Процитировано
43
International Journal of Hydrogen Energy, Год журнала: 2024, Номер 58, С. 556 - 582
Опубликована: Янв. 26, 2024
Язык: Английский
Процитировано
35
Advanced Materials, Год журнала: 2024, Номер 36(24)
Опубликована: Март 5, 2024
Hydrogen peroxide (H
Язык: Английский
Процитировано
27
ACS Catalysis, Год журнала: 2024, Номер 14(7), С. 5275 - 5285
Опубликована: Март 25, 2024
Selective photocatalytic CO2 methanation provides an attractive avenue to address energy and environmental issues. However, impediments such as the sluggish adsorption activation of H2O molecules, along with unexpected intermediate desorption, greatly restrict activity selectivity methanation. To these issues, we devised a dual-active site catalyst comprising Cu single atoms (SAs) nanoclusters (NCs) supported on defective TiO2 (Cu1+NCs/BT). As result, remarkable CH4 98% yield 19.63 μmol gcat.–1 h–1 can be obtained over as-prepared Cu1+NCs/BT in pure water. Mechanistic studies reveal enhanced performance could ascribed synergistic effect sites, where SAs adsorb activate CO2, while NCs boost dissociation for *H coverage. Additionally, adjacent jointly stabilize *CO reduce barrier protonation, promoting multielectron transfer process.
Язык: Английский
Процитировано
25
Journal of the American Chemical Society, Год журнала: 2024, Номер 146(6), С. 4123 - 4133
Опубликована: Фев. 2, 2024
Graphdiyne (GDY) multilayers show stacking-style-dependent physical properties; thus, controlling the stacking style of nanostructures is crucial for utilizing their electrical, optical, and transport properties in electro-optical devices. Herein, we report assemblies nanographdiynes decorated with substituents different steric hindrances to adjust style. We that π-stacked aggregates were influenced by peripheral substrate. Steric hexaterphenyl-substituted nanoGDY scaffolds led dimer structures stacked AB-3 configuration a twist angle 26.01° or AB-1 an in-plane shift along one diyne link. With interval replacement long C12 alkyl chains, nanoGDYs AB-2 decrease congestion, eventually leading one-dimensional (1D) nanofibrous aggregates. Self-assembly presence substrates can result ABC-stacked nanoGDYs, which endowed us possibility using as template GDY growth homogeneous reaction. High-resolution transmission electron microscopy (HRTEM), powder X-ray diffraction (PXRD), photoelectron spectroscopy (XPS), Raman spectroscopy, near-infrared–ultraviolet–visible (NIR–UV–vis) absorption indicate crystalline prepared this way 1.18 eV bandgap semiconductor.
Язык: Английский
Процитировано
16
Nature Communications, Год журнала: 2024, Номер 15(1)
Опубликована: Авг. 26, 2024
Controlling the precise growth of atoms is necessary to achieve manipulation atomic composition and position, regulation electronic structure, an understanding reactions at level. Herein, we report a facile method for ordered anchoring zero-valent platinum manganese with single-atom thickness on graphdiyne under mild conditions. Due strong incomplete charge transfer between metal atoms, formation clusters nanoparticles can be inhibited. The size, structure bimetallic nanoplates are precisely controlled by natural structure-limiting effect graphdiyne. Experimental characterization clearly demonstrates such fine control process. Electrochemical measurements show that active site platinum-manganese interface guarantees high catalytic activity selectivity (~100%) alkene-to-diol conversion. This work lays solid foundation obtaining high-performance nanomaterials engineering site. reports growing highly Pt Mn single layers fully activates loaded results in electrocatalytic conversion
Язык: Английский
Процитировано
13
Energy storage materials, Год журнала: 2024, Номер 70, С. 103458 - 103458
Опубликована: Май 10, 2024
Язык: Английский
Процитировано
11