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Title: PdHx entrapped in covalent triazine framework modulates selectivity in glycerol oxidation [Modulation of palladium activity and stability by a covalent triazine framework]

Journal Article · · ChemCatChem
 [1];  [1];  [2];  [3];  [4];  [5];  [1]
  1. Universita di Milano (Italy)
  2. Fritz Haber Institute of the Max Planck Society, Berlin (Germany)
  3. Istituto di Scienze e Tecnologie Molecolari del CNR, Milano (Italy)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  5. Technische Univ. Berlin (Germany). Berlin Institute of Technology

The confinement of a Pd nanoparticle within a nitrogen-containing covalent triazine framework (CTF) material was investigated to understand if the highly tunable CTF chemistry mediates the Pd catalytic properties through an ensemble effect with the CTF nitrogen atoms or a confinement effect within the CTF pores. The results surprisingly demonstrate that the CTF stabilizes the formation of 2.6 nm PdHx particles within the pores. These PdHx particles are very active for the liquid phase oxidation of glycerol due to the in situ formation of H2O2 which catalytically promotes the initial C-C cleavage. In addition the confined particles are stable over many catalytic cycles whereas nanoparticles trapped outside of the pores loose activity rapidly. These results indicate that there is the potential to tune the CTF chemistry to significantly modify the chemistry of the catalytic metals.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1207042
Journal Information:
ChemCatChem, Vol. 7, Issue 14; ISSN 1867-3880
Publisher:
ChemPubSoc EuropeCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 27 works
Citation information provided by
Web of Science

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Cited By (9)

Covalent Triazine-based Frameworks-Tailor-made Catalysts and Catalyst Supports for Molecular and Nanoparticulate Species journal March 2018
Sulfur‐Linked Covalent Triazine Frameworks Doped with Coordinatively Unsaturated Cu(I) as Electrocatalysts for Oxygen Reduction journal January 2018
Effect of Building Block Transformation in Covalent Triazine‐Based Frameworks for Enhanced CO 2 Uptake and Metal‐Free Heterogeneous Catalysis journal December 2019
AuPd-nNiO as an effective catalyst for the base-free oxidation of HMF under mild reaction conditions journal January 2019
Recent Advancements in the Synthesis of Covalent Triazine Frameworks for Energy and Environmental Applications journal December 2018
Development of Covalent Triazine Frameworks as Heterogeneous Catalytic Supports journal August 2019
Playing with covalent triazine framework tiles for improved CO 2 adsorption properties and catalytic performance journal January 2019
Effect of Building Block Transformation in Covalent Triazine‐Based Frameworks for Enhanced CO 2 Uptake and Metal‐Free Heterogeneous Catalysis journal December 2019
Tailored N-Containing Carbons as Catalyst Supports in Alcohol Oxidation journal February 2016