Ligand coordination effects on gallium nanocluster reactivity

David J. Henry*

Chemical and Metallurgical Engineering and Chemistry, Murdoch University, Western Australia 6150, Australia 

Adv. Mater. Lett., 2017, 8 (8), pp 862-865

DOI: 10.5185/amlett.2017.1672

Publication Date (Web): May 23, 2017

E-mail: d.henry@murdoch.edu.au

Abstract


Stabilisation and modulation of nanocluster reactivity are key elements for the development of these materials as versatile and selective catalysts. This study presents a preliminary investigation of the interaction of ligands with a gallium nanocluster (Ga13). The amphoteric nature of Ga13 means that both a Lewis base (NH3) and a Lewis acid (BH3) strongly adsorb to the surface of the cluster. More importantly, ligand coordination modifies the electronic structure of the cluster, leading to an enhancement of reactivity. In particular, NH3 coordination was found to lower the energy barrier for H2 chemisorption by 10% and BH3 coordination led to reduction of the barrier by 20%. These results demonstrate the potential for ligand coordination as a means of accelerating reactions on cluster surfaces.

Keywords

Co-adsorption, cooperative effect, H2 chemisorption, cluster stability

Current Issue

Advanced Materials Congress Celebrating 10th Years of Establishment


Secure Management of Networked Batteries for Building Integrated Photovoltaics (BIPV) Systems  


The Cause of 100-year Low Carbonated Concrete of the Bridge 


Organic Montmorillonite Intercalated Nano-composites Prevent Post-Surgical Associated Infections


Morphology/tensile Performance Relationship for LLDPE/PP Double Gated Injected Blends


Preparation and Characterization of Nickel Ferrite Nanoparticles via Sol-gel Method


Nitrogen-doped Diamond Nanowire Gas Sensor for the Detection of Methane


Manufacture of Functional Open-cell Al Foams with Recycled Al Scraps using NaCl Ball Space Holder 


Vilsmeier-Haack Transformations under Non Classical Conditions


New Application of Highly Vesicular Basalt from Jabel Isbil Volcano (Dhamar-Rada'a Volcanic Field), Yemen


An Assessment of Tribological Characteristics under different Operating Condition


Functional Bi Coatings as A Perspective Material for Radiation Shields Production against Electron Radiation


Effects of Silica Modified NiFe2O4 on the Dielectric and Electrical Properties of NiFe2O4 filled Poly (methyl methacrylate) Composites


Previous issues
The Journey of a Decade to Advancing Materials Are the Electrospun Polymers Polymeric Fibers? Mechanical and Thermal Properties of Composite Material and Insulation for a Single Walled Tank for Cryogenic Liquids Prediction of Long-Term Behavior for Dynamically Loaded TPU Investigation of Doped Titanium Dioxide in Anatase Phase. Study ab initio using Density Functional Theory Comparison between Single Al2O3 or HfO2 Single Dielectric Layers and their Nanolaminated Systems Preparation of Stable and Optimized Antibody-gold Nanoparticle Conjugates for Point of Care Test Immunoassays Resonance-Based Temperature Sensors using a Wafer Level Vacuum Packaged SOI MEMS Process Integrated System Based on the Hall Sensors Incorporating Compensation of the Distortions The Efficacy of Cinnamomum Tamala as a Potential Antimicrobial Substance against the Multi-Drug Resistant Enterococcus Faecalis from Clinical Isolates The Effect of Complexing Reagent on Structural, Electrical and Optical Properties of CuS Thin Film Laser Cladding of Fluorapatite Nanopowders on Ti6Al4V Preparation and Evaluation of Sulfonate Polyethylene Glycol Borate Ester as a Modifier of Functional Properties of Complex Petroleum Lithium Grease

Upcoming Congress

Knowledge Experience at Sea TM