scholarly journals Electrochemical Activity of Thin-Film Pd Catalysts Modified with Bi for Methanol and Ethanol Oxidation Reaction in Alkaline Solution

2020 ◽  
pp. 3761-3775
Author(s):  
Jelena D. Lović ◽  
Keyword(s):  
Thin Film ◽  
Alkaline Solution ◽  
Oxidation Reaction ◽  
Ethanol Oxidation ◽  
Electrochemical Activity ◽  
Ethanol Oxidation Reaction ◽  
Pd Catalysts

scholarly journals Toward Overcoming the Challenges in the Comparison of Different Pd Nanocatalysts: Case Study of the Ethanol Oxidation Reaction

Inorganics ◽  
2020 ◽  
Vol 8 (11) ◽  
pp. 59
Author(s):  
Oliver Asger Hjortshøj Schreyer ◽  
Jonathan Quinson ◽  
María Escudero-Escribano
Keyword(s):  
Comparative Studies ◽  
Oxidation Reaction ◽  
Ethanol Oxidation ◽  
Limited Resource ◽  
Active Surface ◽  
Catalyst Design ◽  
Size Increase ◽  
Active Surface Area ◽  
Ethanol Oxidation Reaction ◽  
Pd Catalysts

Precious metal nanoparticles, in particular palladium nanomaterials, show excellent catalytic properties and are key in the development of energy systems. For instance, ethanol fuel cells are promising devices for sustainable energy conversion, where Pd-based catalysts are key catalysts for the related ethanol oxidation reaction (EOR). Pd is a limited resource; thus, a remaining challenge is the development of efficient and stable Pd-based catalysts. This calls for a deeper understanding of the Pd properties at the nanoscale. This knowledge can be gained in comparative studies of different Pd nanomaterials. However, such studies remain challenging to perform and interpret due to the lack of cross-studies using the same Pd nanomaterials as a reference. Here, as-prepared sub 3 nm diameter surfactant-free Pd nanoparticles supported on carbon are obtained by a simple approach. The as-prepared catalysts with Pd loading 10 and 30 wt % show higher activity and stability compared to commercially available counterparts for the EOR. Upon electrochemical testing, a significant size increase and loss of electrochemical active surface are observed for the as-prepared catalysts, whereas the commercial samples show an increase in the electrochemically active surface area and moderate size increase. This study shines light on the challenging comparison of different catalysts across the literature. Further advancement in Pd (electro)catalyst design will gain from including self-prepared catalysts. The simple synthesis detailed easily leads to suitable nanoparticles to be used as a reference for more systematic comparative studies of Pd catalysts across the literature.

Flexible Au micro-array electrode with atomic-scale Au thin film for enhanced ethanol oxidation reaction

Nano Research ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 311-319
Author(s):  
Xun Cao ◽  
Dongdong Peng ◽  
Cao Wu ◽  
Yongmin He ◽  
Chaojiang Li ◽  
...  
Keyword(s):  
Thin Film ◽  
Oxidation Reaction ◽  
Ethanol Oxidation ◽  
Atomic Scale ◽  
Ethanol Oxidation Reaction ◽  
Array Electrode ◽  
Micro Array ◽  
Au Thin Film

scholarly journals Electrochemical behavior of electrodeposited Pd and PdNi coatings for the ethanol oxidation reaction in alkaline solution

2017 ◽  
Author(s):  
Jelena Dušan Lović ◽  
Vladimir Jović
Keyword(s):  
Steady State ◽  
Alkaline Solution ◽  
Oxidation Reaction ◽  
Ethanol Oxidation ◽  
Surface Composition ◽  
Potential Cycling ◽  
Ethanol Oxidation Reaction ◽  
Current Time ◽  
Current Densities ◽  
Activity Loss

<strong><em><span>Electrodeposited Pd and PdNi coating samples were tested for ethanol oxidation reaction (EOR) in alkaline solution using cyclic voltammetry (CV), chronoamperometric (CA) and quasi steady state measurements. All alloy samples showed higher current densities for the EOR than pure Pd coating. The current density increased with increasing the amount of Pd in the PdNi coating and the most active one was found to be Pd<sub>0.74</sub>Ni<sub>0.26</sub>. Based on CA measurements a pseudo-steady state is achieved after 1500 s showing that Pd<sub>0.74</sub>Ni<sub>0.26</sub> is more efficient and poisoning more tolerant than other investigated coatings. Upon the end of the current-time transient, the investigated catalysts were subjected to the potential cycling showing the ability to recover activity loss implying the surface composition stability of  binary coatings</span></em></strong>

Magnéli phase Ti8O15 nanowires as conductive carbon-free energy materials to enhance the electrochemical activity of palladium nanoparticles for direct ethanol oxidation

2015 ◽  
Vol 3 (27) ◽  
pp. 14416-14423 ◽  
Author(s):  
Pei Kang Shen ◽  
Chunyong He ◽  
Shiyong Chang ◽  
Xiangdong Huang ◽  
Zhiqun Tian
Keyword(s):  
Free Energy ◽  
Palladium Nanoparticles ◽  
Oxidation Reaction ◽  
Ethanol Oxidation ◽  
Electrochemical Activity ◽  
Energy Materials ◽  
Ethanol Oxidation Reaction ◽  
Single Crystalline ◽  
Magnéli Phase ◽  
Magneli Phase

Pure single-crystalline Magnéli phase Ti8O15 nanowires (NWs) have been successfully synthesized and show a significantly enhanced activity for the ethanol oxidation reaction and excellent durability.

scholarly journals Structure and electrochemical activity of nickel aluminium fluoride nanosheets during urea electro-oxidation in an alkaline solution

RSC Advances ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 3190-3201
Author(s):  
Saba A. Aladeemy ◽  
Abdullah M. Al-Mayouf ◽  
Mabrook S. Amer ◽  
Nouf H. Alotaibi ◽  
Mark T. Weller ◽  
...  
Keyword(s):  
Alkaline Solution ◽  
Oxidation Reaction ◽  
Electrochemical Activity ◽  
Aluminium Fluoride ◽  
Electro Oxidation

An electrocatalyst of potassium nickel aluminium hexafluoride (KNiAlF6) nanosheets for enhanced urea oxidation reaction.

Ultrafine FePd Nanoalloys Decorated Multiwalled Cabon Nanotubes toward Enhanced Ethanol Oxidation Reaction

2015 ◽  
Vol 7 (43) ◽  
pp. 23920-23931 ◽  
Author(s):  
Yiran Wang ◽  
Qingliang He ◽  
Jiang Guo ◽  
Jinmin Wang ◽  
Zhiping Luo ◽  
...  
Keyword(s):  
Oxidation Reaction ◽  
Ethanol Oxidation ◽  
Ethanol Oxidation Reaction
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