Articles with "metal sites" as a keyword



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Fully‐Conjugated Covalent Organic Frameworks with Two Metal Sites for Oxygen Electrocatalysis and Zn–Air Battery

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Published in 2023 at "Advanced Science"

DOI: 10.1002/advs.202206165

Abstract: Covalent organic frameworks (COFs) are a promising alternative toward catalysis, due to the unique framework structure and the excellent chemical stability. However, the scarcity of unsaturated metal sites and the low conductivity have constrained the… read more here.

Keywords: metal sites; organic frameworks; covalent organic; metal ... See more keywords
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General Synthetic Strategy to Ordered Mesoporous Carbon Catalysts with Single-Atom Metal Sites for Electrochemical CO2 Reduction.

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Published in 2022 at "Small"

DOI: 10.1002/smll.202107799

Abstract: The electrochemical carbon dioxide reduction reaction (CO2 RR) is a transformative technology to reduce the carbon footprint of modern society. Single-site catalysts have been demonstrated as promising catalysts for CO2 RR, but general synthetic methods… read more here.

Keywords: carbon; metal sites; single atom; general synthetic ... See more keywords
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Construction of Atomic Metal-N2 Sites by Interlayers of Covalent Organic Frameworks for Electrochemical H2 O2 Synthesis.

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Published in 2022 at "Small"

DOI: 10.1002/smll.202204757

Abstract: Electrosynthesis of H2 O2 is a promising alternative to the anthraquinone oxidation process because of its low energy utilization and cost-effectiveness. Heteroatom-doped carbons-based catalysts have been widely developed for H2 O2 synthesis. However, their doping… read more here.

Keywords: metal sites; atomic metal; synthesis; construction atomic ... See more keywords
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In-depth insights into N2O formation over Rh- and Pt-based LNT catalysts

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Published in 2019 at "Catalysis Today"

DOI: 10.1016/j.cattod.2018.01.026

Abstract: Abstract In this paper mechanistic aspects involved in the formation of N2O over model Pt-Ba/Al2O3 and Rh-Ba/Al2O3 LNT catalysts are discussed. The reactivity of both gaseous NO and of stored NOx (nitrates) has been studied,… read more here.

Keywords: secondary n2o; formation; lnt catalysts; metal sites ... See more keywords
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Zn-based metal organic framework derivative with uniform metal sites and hierarchical pores for efficient adsorption of formaldehyde

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Published in 2020 at "Chinese Chemical Letters"

DOI: 10.1016/j.cclet.2020.11.023

Abstract: Abstract A Zn-containing graphite carbon (Zn-GC) with uniform Zn metal sites and hierarchical pore structure was obtained by pyrolysis of Zn-based metal organic framework (MOF). Zn-GC exhibited excellent adsorption capacity and reproducibility for formaldehyde. The… read more here.

Keywords: adsorption; based metal; metal; metal sites ... See more keywords
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Metal Sites in Zeolites: Synthesis, Characterization, and Catalysis.

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Published in 2022 at "Chemical reviews"

DOI: 10.1021/acs.chemrev.2c00315

Abstract: Zeolites with ordered microporous systems, distinct framework topologies, good spatial nanoconfinement effects, and superior (hydro)thermal stability are an ideal scaffold for planting diverse active metal species, including single sites, clusters, and nanoparticles in the framework… read more here.

Keywords: synthesis characterization; metal; metal zeolite; metal sites ... See more keywords
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NO Generation from the Cross-Talks between Ene-diol Antioxidants and Nitrite at Metal Sites.

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Published in 2022 at "Inorganic chemistry"

DOI: 10.1021/acs.inorgchem.2c00364

Abstract: The one-electron reduction of nitrite (NO2-) to nitric oxide (NO) and ene-diol oxidation are two important biochemical transformations. Employing mononuclear cobalt-nitrite complexes with CoIII and CoII oxidation states, [(Bz3Tren)CoIII(nitrite)2](ClO4) (1) and [(Bz3Tren)CoII(nitrite)](ClO4) (2), this report… read more here.

Keywords: diol antioxidants; oxidation; metal sites; generation ... See more keywords
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Thiacalixarene-Supported Irregular Co26 and Ni28 High-Nuclearity Clusters with Pyridyl-Diphosphonates: Strategies to Create Active Metal Sites and Fabricate Multicomponent Materials.

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Published in 2019 at "Inorganic chemistry"

DOI: 10.1021/acs.inorgchem.9b00495

Abstract: Two new irregularity high-nuclearity clusters [Co26(TC4A)6(HL)4Cl4(HCOO)4(CH3O)2(OH)2(DMF)10(H2O)5] (+ solvent) (Co26) and [Ni28(TC4A)6(HL)6(PO4)2(μ3-O)2Cl2(CH3OH)14(H2O)2(DMF)8][(CH3NH2CH3)4] (+ solvent) (Ni28) have been solvothermally synthesized by p- tert-butylthiacalix[4]arene (H4TC4A), transition metals (CoCl2·6H2O/NiCl2·6H2O), and 1-hydroxy-2-(3-pyridinyl)ethylidene-1,1-diphosphonic acid (H5L). The clusters were structurally characterized by… read more here.

Keywords: high nuclearity; co26; co26 ni28; metal sites ... See more keywords
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Porous Zn(Bmic)(AT) MOF with Abundant Amino Groups and Open Metal Sites for Efficient Capture and Transformation of CO2.

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Published in 2019 at "Inorganic chemistry"

DOI: 10.1021/acs.inorgchem.9b01762

Abstract: An efficient Zn(Bmic)(AT) MOF with available Lewis acid-base blocks was prepared by a solvothermal method combining the mixed ligands 5-aminotetrazole (HAT) and 1-benzimidazole-5-carboxylic acid (H2Bmic). The prepared Zn(Bmic)(AT) catalyst is rich in amino groups, uncoordinated… read more here.

Keywords: amino groups; open metal; metal sites; bmic mof ... See more keywords
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Open Metal Sites in the Metal–Organic Framework CPO-27-Cu: Detection of Regular and Defect Copper Species by CO and NO Probe Molecules

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Published in 2018 at "Journal of Physical Chemistry C"

DOI: 10.1021/acs.jpcc.8b04045

Abstract: The open copper metal sites in CPO-27-Cu were studied by means of IR spectroscopy of adsorbed CO and NO, and density functional theory calculations. Very low Lewis acidity of the Cu2+ sites was established by… read more here.

Keywords: open metal; metal organic; copper; sites metal ... See more keywords
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Theoretically Revealed and Experimentally Demonstrated Synergistic Electronic Interaction of CoFe Dual-Metal Sites on N-doped Carbon for Boosting Both Oxygen Reduction and Evolution Reactions.

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Published in 2022 at "Nano letters"

DOI: 10.1021/acs.nanolett.2c00658

Abstract: Heteronuclear double-atom catalysts, unlike single atom catalysts, may change the charge density of active metal sites by introducing another metal single atom, thereby modifying the adsorption energies of reaction intermediates and increasing the catalytic activities.… read more here.

Keywords: metal sites; oxygen reduction; oxygen; metal ... See more keywords