A carboxyl functionalized metal-organic framework [Co(TPT)(bptc)]·3HO (Co-MOF (-COOH)) was designed with the aim of grafting protective CTS onto the surface as a precursor. Compared with direct carbonization and physical mixing carbonization, (Co-MOF--CTS)-900 prepared by confined pyrolysis shows excellent catalytic reduction performance.
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http://dx.doi.org/10.1039/d5dt00074b | DOI Listing |
Dalton Trans
March 2025
School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China.
A carboxyl functionalized metal-organic framework [Co(TPT)(bptc)]·3HO (Co-MOF (-COOH)) was designed with the aim of grafting protective CTS onto the surface as a precursor. Compared with direct carbonization and physical mixing carbonization, (Co-MOF--CTS)-900 prepared by confined pyrolysis shows excellent catalytic reduction performance.
View Article and Find Full Text PDFNanoscale
February 2025
NanoBio Laboratory, Special Center for Nanoscience, Jawaharlal Nehru University, New Delhi-110067, India.
A correlation between the emerging high case fatality rate of head and neck cancer and its propensity to migrate metastatically to other parts of the body makes it a significant global danger. It raises the demand for low-level detection, which is useful for early-stage diagnostics. Graphitic carbon nitride (g-CN) has recently garnered considerable attention as a promising nanomaterials for biosensor due to its exceptional redox behavior, electrochemical activity, and abundance of electroactive sites.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
February 2025
Department of Chemistry, Tsinghua University, Beijing, 100084, China.
Introducing OH-interaction sites to accelerate water dissociation can increase hydrogen coverage on active site surfaces and thus accelerate H-spillover, leading to an enhanced hydrogen evolution reaction (HER). Recent studies on single-atom catalysts (SACs) combined with nano-metal-particles (NMPs) have developed various homologous NMP-SACs, however, synthesizing the heterologous NMP-SACs remains a significant challenge. Particularly for HER catalysts under alkaline conditions, the ideal heterologous structure requires a synergy between non-noble NMPs with strong oxophilicity and noble-metal SAs with suitable hydrogen binding energy.
View Article and Find Full Text PDFLangmuir
March 2025
School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, PR China.
Elaborate engineering of the microstructure of electromagnetic (EM) absorption materials affords infinite potential for achieving superior EM wave absorption performance. In this work, a leaf-like Co/C nanosheet was rationally fabricated by a facile pyrolysis of a CoZn-based zeolitic imidazolate framework-L (Co/Zn-ZIF-L) precursor. Herein, Co nanoparticles (NPs) are uniformly confined in the leaf-like porous carbon matrix, forming attractive heterostructures.
View Article and Find Full Text PDFSmall
February 2025
Institutes of Physical Science and Information Technology, Anhui Graphene Carbon Fiber Materials Research Center, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei, 230601, China.
Single atom iron-nitrogen-carbon (Fe-N-C) catalysts with a planar Fe─N structure are widely investigated as potential alternatives to platinum-based materials for oxygen reduction reaction (ORR), while they still suffer from the imperfect adsorption and activation of reaction intermediates, limiting their reduction efficiency. Herein, a Fe single-atom catalyst with a biomimetic square pyramidal N-Fe-N site supported by honeycomb-like porous carbon (SA-FeN/HPC) is successfully prepared by a supramolecular confinement-pyrolysis strategy. Theoretical calculations unveil that the introduction of spatially axial N ligands effectively regulates the charge redistribution around the planar Fe─N active centers and confers Fe active moieties with appropriate adsorption strength for intermediates, thereby resulting in accelerated ORR kinetics.
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