In this communication, optimized sulfur vacancy-rich nitrogen-doped MoS2 nanoflowers were developed, which served as excellent N2 reduction reaction (NRR) electrocatalysts for the conversion of N2 to NH3 under ambient conditions. Electrochemical results demonstrated that the as-prepared N-doped MoS2 electrode afforded a superior NH3 yield and high faradaic efficiency, which exceeded those of the recently reported MoS2 catalysts. The possible NRR catalytic mechanism and electron transfer pathway were further elucidated via density functional theory calculations.
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http://dx.doi.org/10.1039/c9cc02607j | DOI Listing |
Nat Commun
January 2025
Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore, Singapore.
Photocatalytic conversion has emerged as a promising strategy for harnessing renewable solar energy in the valorization of plastic waste. However, research on the photocatalytic transformation of plastics into valuable nitrogen-containing chemicals remains limited. In this study, we present a visible-light-driven pathway for the conversion of polylactic acid (PLA) into alanine under mild conditions.
View Article and Find Full Text PDFJ Colloid Interface Sci
April 2025
State Key Laboratory Base for Eco-chemical Engineering, Key Laboratory of Multiphase Flow Reaction and Separation Engineering of Shandong Province, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China. Electronic address:
Modifying CdZnS with precious metal at the atomic scale is a promising approach for maximizing its photocatalytic performance. Herein, Rh single atoms (Rh) were successfully anchored on hollow microflower MoS/sulfur-vacancy-rich CdZnS (CZS-SVs) to boost H generation. The optimal catalyst Rh@MoS/CZS-SVs reaches a H productivity of 39,827 μmol h g, representing 5.
View Article and Find Full Text PDFSmall Methods
November 2024
Istituto per lo Studio dei Materiali Nanostrutturati (ISMN)- Consiglio Nazionale delle Ricerche (CNR), Via P. Gobetti 101, Bologna, 40129, Italy.
Defects are inherent in transition metal dichalcogenides and significantly affect their chemical and physical properties. In this study, surface defect electrochemical nanopatterning is proposed as a promising method to tune in a controlled manner the electronic and functional properties of defective MoS₂ thin films. Using parallel electrochemical nanolithography, MoS₂ thin films are patterned, creating sulphur vacancy-rich active zones alternated with defect-free regions over a centimetre scale area, with sub-micrometre spatial resolution.
View Article and Find Full Text PDFAdv Mater
January 2025
School of Materials Science and Engineering, and the Key Laboratory of Structure & Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei, 230601, P. R. China.
To achieve high selectivity in photocatalytic CO reduction to C products, increasing the number of CO adsorption sites and lowering the energy barriers for key intermediates are critical. A ZnInS (ZIS)/MoO (Z-M) photocatalyst is presented, in which plasmonic MoO generates hot electrons, creating a multielectron environment in ZIS that facilitates efficient C─C coupling reactions. Density functional theory (DFT) calculations reveal that MoO reduces the formation energy of sulfur vacancies (S) in ZIS, thereby enhancing CO adsorption and activation.
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