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Modulating Electronic Density of Single-Atom Ni Center by Heteroatoms for Efficient CO Electroreduction.
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January 2025
CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
Single-atom catalysts (SACs) with unique geometric and electronic configurations have triggered great interest in many important reactions. However, controllably modulating the electronic structure of metal centers to enhance catalytic performance remains a challenge. Here, the electronic structure of Ni centers over Ni-NC SACs by introducing electron-rich phosphorus or electron-deficient boron for electrochemical CO reduction (CORR) is systematically tailored.
View Article and Find Full Text PDFRapid Charge Transfer Endowed by Heteroatom Doped Z-Scheme Van Der Waals Heterojunction for Boosting Photocatalytic Hydrogen Evolution.
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January 2025
College of Ecology and Environment, Co-Innovation Center for the Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, P. R. China.
Constructing heterojunctions between phase interfaces represents a crucial strategy for achieving excellent photocatalytic performance, but the absence of sufficient interface driving force and limited charge transfer pathway leads to unsatisfactory charge separation processes. Herein, a doping-engineering strategy is introduced to construct a In─N bond-bridged InS nanocluster modified S doped carbon nitride (CN) nanosheets Z-Scheme van der Waals (VDW) heterojunctions (InS/CNS) photocatalyst, and the preparation process just by one-step pyrolysis using the pre-coordination confinement method. Specifically, S atoms doping enhances the bond strength of In─N and forms high-quality interfacial In─N linkage which serves as the atomic-level interfacial "highway" for improving the interfacial electrons migration, decreasing the charge recombination probability.
View Article and Find Full Text PDFImpact of humidity on the adsorption and decomposition of mustard gas simulant on heteroatom-modified nanoporous carbon textiles.
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January 2025
Department of Chemistry and Biochemistry, The City College of New York, 160 Convent Ave., New York, NY 10031, United States. Electronic address:
Activated carbon textile (C-Text) was chemically modified to incorporate oxygen- (C-Text-O), nitrogen- (C-Text-ON), and/or sulfur- (C-Text-OS) containing surface functional groups, aiming to enhance their reactive adsorption capacity. The modified textiles were evaluated for their ability to detoxify 2-choloroethyl ethyl sulfide (CEES) in both vapor and liquid phases, under dry and humid conditions. The maximum amount of water adsorbed was directly affected by the surface area (R = 0.
View Article and Find Full Text PDFSelective production of olefins from methanol over a heteroatomic SAPO-34 zeolite.
Sci Bull (Beijing)
January 2025
Department of Chemistry, University of Manchester, Manchester, M13 9PL, UK; College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871, China. Electronic address:
The methanol-to-olefins (MTO) process has the potential to bridge future gaps in the supply of sustainable lower olefins. Promoting the selectivity of propylene and ethylene and revealing the catalytic role of active sites are challenging goals in MTO reactions. Here, we report a novel heteroatomic silicoaluminophosphate (SAPO) zeolite, SAPO-34-Ta, which incorporates active tantalum(V) sites within the framework to afford an optimal distribution of acidity.
View Article and Find Full Text PDFEnhancing Catalytic Removal of Autoexhaust Soot Particles via the Modulation of Interfacial Oxygen Vacancies in Cu/CeO Catalysts.
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January 2025
State Key Laboratory of Heavy Oil Processing, Key Laboratory of Optical Detection Technology for Oil and Gas, College of Science, China University of Petroleum, Beijing 102249, PR China.
The purification efficiency of autoexhaust carbon strongly depends on the heterogeneous interface structure between active metal and oxide, which can modulate the local electronic structure of defect sites to promote the activation of reactant molecules. Herein, the high-dispersion CuO clusters supported on the well-defined CeO nanorods were prepared using the complex deposition slow method. The formation of heteroatomic Cu-O-Ce interfacial structural units as active sites can capture electrons to achieve activation of the NO and O molecules.
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