Nanostructured, Bimetallic, Noble Metal Powders Prepared By Atomic Layer Electroless Deposition for Applications in Sensing and Catalysis

2015 ◽  
Keyword(s):  
Noble Metal ◽  
Electroless Deposition ◽  
Atomic Layer ◽  
Metal Powders

Atomic-Layer Electroless Deposition: A Scalable Approach to Surface-Modified Metal Powders

Langmuir ◽  
2014 ◽  
Vol 30 (16) ◽  
pp. 4820-4829 ◽  
Author(s):  
Patrick J. Cappillino ◽  
Joshua D. Sugar ◽  
Farid El Gabaly ◽  
Trevor Y. Cai ◽  
Zhi Liu ◽  
...  
Keyword(s):  
Electroless Deposition ◽  
Atomic Layer ◽  
Metal Powders ◽  
Surface Modified

scholarly journals Atomic layer deposition for efficient oxygen evolution reaction at Pt/Ir catalyst layers

2020 ◽  
Vol 11 ◽  
pp. 952-959
Author(s):  
Stefanie Schlicht ◽  
Korcan Percin ◽  
Stefanie Kriescher ◽  
André Hofer ◽  
Claudia Weidlich ◽  
...  
Keyword(s):  
Atomic Layer Deposition ◽  
Noble Metal ◽  
Bimetallic Catalyst ◽  
Precursor Solution ◽  
Atomic Layer ◽  
Dip Coating ◽  
Experimental Conditions ◽  
Catalyst Layers ◽  
Layer Deposition ◽  
Improved Stability

We provide a direct comparison of two distinct methods of Ti felt surface treatment and Pt/Ir electrocatalyst deposition for the positive electrode of regenerative fuel cells and vanadium–air redox flow batteries. Each method is well documented in the literature, and this paper provides a direct comparison under identical experimental conditions of electrochemical measurements and in identical units. In the first method, based on classical engineering, the bimetallic catalyst is deposited by dip-coating in a precursor solution of the salts followed by their thermal decomposition. In the alternative method, more academic in nature, atomic layer deposition (ALD) is applied to the felts after anodization. ALD allows for a controlled coating with ultralow noble-metal loadings in narrow pores. In acidic electrolyte, the ALD approach yields improved mass activity (557 A·g−1 as compared to 80 A·g−1 at 0.39 V overpotential) on the basis of the noble-metal loading, as well as improved stability.

Chemical Control of Noble Metal Catalysis by Main Group Elements

1997 ◽  
Vol 497 ◽  
Author(s):  
K. Asakura ◽  
K. Okumura ◽  
T. Inoue ◽  
T. Kubota ◽  
W-J. Chun ◽  
...  
Keyword(s):  
High Temperature ◽  
Noble Metal ◽  
Chemical Control ◽  
Noble Metals ◽  
Selective Reduction ◽  
Atomic Layer ◽  
Hydrogenation Reaction ◽  
Main Group ◽  
Main Group Elements ◽  
Temperature Reduction

ABSTRACTThe catalytic interaction of noble metal and main group elements in Rh/one-atomic layer GeO2/SiO2 and Pt/SbOx was investigated. The high temperature reduction produced RhGe and PtSb bimetallic particles in which Pt and Rh were electronically modified to retard catalytic activity. However, unique selective catalyses of Rh/one-atomic layer GeO2/SiO2 for CO hydrogenation reaction to oxygenate compounds and for NO+CO reaction to N2 were found. Under the low temperature reduction of Rh/one-atomic layer GeO2/SiO2 and the high temperature calcination of Pt/SbOx, the oxide phases, GeO2 and SbOx, were stable and the selective reduction of ethylacetate to ethanol and the selective oxidation of iso-C4H10 to methacrolein were observed. The high selectivities were ascribed to synergistic interaction between the noble metals and the main group element oxides through the diffusion of adsorbed species and reaction intermediates. The possibility of chemical control of noble metal-catalyses by main group elements is discussed.

Atomic Layer Deposited Non-Noble Metal Oxide Catalyst for Sodium-Air Batteries: Tuning the Morphologies and Compositions of Discharge Product

2017 ◽  
Vol 27 (16) ◽  
pp. 1606662 ◽  
Author(s):  
Qian Sun ◽  
Jian Liu ◽  
Xia Li ◽  
Biqiong Wang ◽  
Hossein Yadegari ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Noble Metal ◽  
Oxide Catalyst ◽  
Atomic Layer ◽  
Metal Oxide Catalyst ◽  
Discharge Product

Production of Noble Metal Powders

2019 ◽  
pp. 831-846
Author(s):  
Oleg D. Neikov ◽  
Stanislav S. Naboychenko ◽  
Irina B. Murashova
Keyword(s):  
Noble Metal ◽  
Metal Powders
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