Introducing oxophilic metal and interstitial hydrogen into Pd lattice to boost electrochemical performance of alkaline ethanol oxidation

2022 ◽  
Author(s):  
Cong Shen ◽  
Hanming Chen ◽  
Mingye Qiu ◽  
Yuqiang Shi ◽  
Wei Yan ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Electrochemical Performance ◽  
Oxidation Reaction ◽  
Ethanol Oxidation ◽  
Ethanol Fuel ◽  
Ethanol Oxidation Reaction ◽  
Direct Ethanol Fuel Cells ◽  
Kinetics Of ◽  
Interstitial Hydrogen

The sluggish kinetics of ethanol oxidation reaction (EOR), poor C1 selectivity and susceptibility to toxicity of CO intermediates hinder the commercialization of direct ethanol fuel cells (DEFCs). In this paper,...

Hybrid palladium nanoparticles and nickel single atom catalyst for efficient electrocatalytic ethanol oxidation

2021 ◽  
Author(s):  
Si Li ◽  
Anxiang Guan ◽  
Huining Wang ◽  
Yaqin Yan ◽  
Haoliang Huang ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Palladium Nanoparticles ◽  
Oxidation Reaction ◽  
Ethanol Oxidation ◽  
Single Atom ◽  
Critical Component ◽  
Ethanol Fuel ◽  
Ethanol Oxidation Reaction ◽  
Direct Ethanol Fuel Cells

The electrocatalytic ethanol oxidation reaction (EOR) is a critical component for direct ethanol fuel cells, while its reactivity, stability, and selectivity toward C1 products are severely hindered by the poisoning...

Core-Shell Nanoparticle with Tensile Strain Enables Highly Efficient Electrochemical Ethanol Oxidation

2021 ◽  
Author(s):  
Moxuan Liu ◽  
Miao Xie ◽  
Yilan Jiang ◽  
Zhaojun Liu ◽  
Yiming Lu ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Oxidation Kinetics ◽  
Oxidation Reaction ◽  
Tensile Strain ◽  
Ethanol Oxidation ◽  
Core Shell ◽  
Complete Oxidation ◽  
Ethanol Oxidation Reaction ◽  
Direct Ethanol Fuel Cells ◽  
Anode Reaction

The ethanol oxidation reaction (EOR), the anode reaction of direct ethanol fuel cells, suffers from the sluggish oxidation kinetics and its low selectivity toward complete oxidation to CO2. The key...

scholarly journals Alkaline Ethanol Oxidation Reaction on Carbon Supported Ternary PdNiBi Nanocatalyst using Modified Instant Reduction Synthesis Method

2020 ◽  
Vol 11 (2) ◽  
pp. 203-214
Author(s):  
Bernd Cermenek ◽  
Boštjan Genorio ◽  
Thomas Winter ◽  
Sigrid Wolf ◽  
Justin G. Connell ◽  
...  
Keyword(s):  
Oxidation Reaction ◽  
Ethanol Oxidation ◽  
Synthesis Method ◽  
Compositional Analysis ◽  
Rotating Disk ◽  
Rotating Disk Electrode ◽  
The Other ◽  
Ethanol Oxidation Reaction ◽  
Direct Ethanol Fuel Cells ◽  
Onset Potential

AbstractDirect ethanol fuel cells (DEFC) still lack active and efficient electrocatalysts for the alkaline ethanol oxidation reaction (EOR). In this work, a new instant reduction synthesis method was developed to prepare carbon supported ternary PdNiBi nanocatalysts with improved EOR activity. Synthesized catalysts were characterized with a variety of structural and compositional analysis techniques in order to correlate their morphology and surface chemistry with electrochemical performance. The modified instant reduction synthesis results in well-dispersed, spherical Pd85Ni10Bi5 nanoparticles on Vulcan XC72R support (Pd85Ni10Bi5/C(II-III)), with sizes ranging from 3.7 ± 0.8 to 4.7 ± 0.7 nm. On the other hand, the common instant reduction synthesis method leads to significantly agglomerated nanoparticles (Pd85Ni10Bi5/C(I)). EOR activity and stability of these three different carbon supported PdNiBi anode catalysts with a nominal atomic ratio of 85:10:5 were probed via cyclic voltammetry and chronoamperometry using the rotating disk electrode method. Pd85Ni10Bi5/C(II) showed the highest electrocatalytic activity (150 mA⋅cm−2; 2678 mA⋅mg−1) with low onset potential (0.207 V) for EOR in alkaline medium, as compared to a commercial Pd/C and to the other synthesized ternary nanocatalysts Pd85Ni10Bi5/C(I) and Pd85Ni10Bi5/C(III). This new synthesis approach provides a new avenue to developing efficient, carbon supported ternary nanocatalysts for future energy conversion devices.

scholarly journals Tailoring properties of platinum supported catalysts by irreversible adsorbed adatoms toward ethanol oxidation for direct ethanol fuel cells

2013 ◽  
Vol 140-141 ◽  
pp. 378-385 ◽  
Author(s):  
Marta C. Figueiredo ◽  
Annukka Santasalo-Aarnio ◽  
Francisco J. Vidal-Iglesias ◽  
José Solla-Gullón ◽  
Juan M. Feliu ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Ethanol Oxidation ◽  
Supported Catalysts ◽  
Ethanol Fuel ◽  
Direct Ethanol Fuel Cells

Ethanol Oxidation in Direct Ethanol Fuel Cells

2013 ◽  
Vol 53 (28) ◽  
pp. 23-30
Author(s):  
B. B. L. Reeb ◽  
N. Kluy ◽  
O. Schneider ◽  
U. Stimming
Keyword(s):  
Fuel Cells ◽  
Ethanol Oxidation ◽  
Ethanol Fuel ◽  
Direct Ethanol Fuel Cells
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