Rational Design of Supported PdAu Nanoparticle Catalysts from Structured Nanoparticle Precursors

2009 ◽  
Vol 113 (29) ◽  
pp. 12719-12730 ◽  
Author(s):  
Priyabrat Dash ◽  
Toby Bond ◽  
Candace Fowler ◽  
Wenbo Hou ◽  
Neil Coombs ◽  
...  
Keyword(s):  
Rational Design ◽  
Nanoparticle Catalysts

The role and fate of capping ligands in colloidally prepared metal nanoparticle catalysts

2018 ◽  
Vol 47 (17) ◽  
pp. 5889-5915 ◽  
Author(s):  
Liane M. Rossi ◽  
Jhonatan L. Fiorio ◽  
Marco A. S. Garcia ◽  
Camila P. Ferraz
Keyword(s):  
Rational Design ◽  
Metal Nanoparticle ◽  
Partial Removal ◽  
Nanoparticle Catalysts ◽  
Capping Ligands

In this Perspective article, we highlight emerging opportunities for the rational design of catalysts upon the choice, exchange, partial removal or pyrolysis of ligands.

Towards the Rational Design of Supported-Bimetallic Nanoparticle Catalysts

2009 ◽  
Vol 1217 ◽  
Author(s):  
Priyabrat Dash ◽  
Robert W. J. Scott
Keyword(s):  
Rational Design ◽  
Heterogeneous Catalysts ◽  
Sol Gel ◽  
Size Composition ◽  
Large Degree ◽  
Thermal Reduction ◽  
Nanoparticle Catalysts ◽  
Calcination Temperatures ◽  
Oxide Support ◽  
Compositional Uniformity

AbstractHeterogeneous catalysts consisting of nanoparticles dispersed on an oxide support are a mainstay in industrial reactions, and are often made via thermal reduction of metal salts dispersed onto a pre-synthesized support. Herein we document a route towards the design of xerogel-supported nanoparticle catalysts by trapping compositionally-tuned polymer-stabilized nanoparticle precursors into sol-gel matrices. Such a route allows in principle for the tuning of the size, composition, architecture, and electronic properties of nanoparticle catalysts, which allows for the development of highly efficient and selective catalysts. As proof of concept we detail the synthesis of co-reduced PdAu nanoparticles in titania supports. The final materials are well-characterized by HRTEM and energy dispersive spectroscopy (EDS), which confirm the compositional uniformity of the nanoparticles. The importance of controlling calcination conditions in order to retain designed nanoparticle compositions is stressed; high temperature calcination conditions lead to a large degree of sintering and loss of compositional uniformity, while mild calcination temperatures can be used to retain nanoparticle compositions and sizes.

Molecular insights on the dynamic stability of peptide nucleic acid functionalized carbon and boron nitride nanotubes

2021 ◽  
Vol 23 (1) ◽  
pp. 219-228
Author(s):  
Nabanita Saikia ◽  
Mohamed Taha ◽  
Ravindra Pandey
Keyword(s):  
Nucleic Acid ◽  
Boron Nitride ◽  
Nucleic Acids ◽  
Dynamic Stability ◽  
Peptide Nucleic Acid ◽  
Rational Design ◽  
Peptide Nucleic Acids ◽  
Boron Nitride Nanotubes ◽  
Molecular Hybrids ◽  
Single Wall Nanotubes

The rational design of self-assembled nanobio-molecular hybrids of peptide nucleic acids with single-wall nanotubes rely on understanding how biomolecules recognize and mediate intermolecular interactions with the nanomaterial's surface.

Optimizing electron density of nickel sulfide electrocatalysts through sulfur vacancy engineering for alkaline hydrogen evolution

2020 ◽  
Vol 8 (35) ◽  
pp. 18207-18214
Author(s):  
Dongbo Jia ◽  
Lili Han ◽  
Ying Li ◽  
Wenjun He ◽  
Caichi Liu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Electron Density ◽  
Rational Design ◽  
Nickel Sulfide ◽  
Catalytic Performance ◽  
Sulfide Catalysts ◽  
Sulfur Vacancy

A novel, rational design for porous S-vacancy nickel sulfide catalysts with remarkable catalytic performance for alkaline HER.

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