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...

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...

scholarly journals New understandings of ethanol oxidation reaction mechanism on Pd/C and Pd2Ru/C catalysts in alkaline direct ethanol fuel cells

2018 ◽  
Vol 224 ◽  
pp. 602-611 ◽  
Author(s):  
Junsong Guo ◽  
Rongrong Chen ◽  
Fu-Chun Zhu ◽  
Shi-Gang Sun ◽  
Hebe M. Villullas
Keyword(s):  
Fuel Cells ◽  
Reaction Mechanism ◽  
Oxidation Reaction ◽  
Ethanol Oxidation ◽  
Ethanol Fuel ◽  
Ethanol Oxidation Reaction ◽  
Direct Ethanol Fuel Cells

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,...

A Review of Pd-Based Electrocatalyst for the Ethanol Oxidation Reaction in Alkaline Medium

2013 ◽  
Vol 860-863 ◽  
pp. 826-830 ◽  
Author(s):  
Long Long Wang ◽  
Qiao Xia Li ◽  
Tian Yu Zhan ◽  
Qun Jie Xu
Keyword(s):  
Alkaline Medium ◽  
Oxidation Reaction ◽  
Ethanol Oxidation ◽  
Synthetic Methods ◽  
Alkaline Media ◽  
Complete Oxidation ◽  
Ethanol Oxidation Reaction ◽  
Direct Ethanol Fuel Cells ◽  
In Situ Ftir Spectroscopy ◽  
Oxidation Of Ethanol

Direct ethanol fuel cells are considered a promising power source for future portable electronic and automotive applications. This article reviewed the synthetic methods commonly used to prepare Pd-based catalysts for the ethanol electrooxidation in alkaline media. The progress in the mechanism studies of ethanol oxidation reaction (EOR) on Pd electrode in alkaline medium by cyclic voltammetry and electrochemical in situ FTIR spectroscopy was also reviewed. The recent studies revealed that the EOR is fairly complicated, and it is difficult in CC bond cleavage for the complete oxidation of ethanol to CO2, and ethanol is selectively oxidized to acetate on Pd-based catalysts in alkaline media. Overall, what is most important is to explore new Pd-based alloy catalysts with high ability to break the CC bond to promote complete oxidation of ethanol as well as increase the efficiency of DEFCs.

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.

Monodisperse PdSn/SnOx core/shell nanoparticles with superior electrocatalytic ethanol oxidation performance

2020 ◽  
Vol 8 (40) ◽  
pp. 20931-20938
Author(s):  
Qiang Gao ◽  
Tianyou Mou ◽  
Shikai Liu ◽  
Grayson Johnson ◽  
Xue Han ◽  
...  
Keyword(s):  
Oxidation Reaction ◽  
Ethanol Oxidation ◽  
Core Shell ◽  
Ethanol Oxidation Reaction ◽  
Shell Nanoparticles ◽  
Oxidation Performance ◽  
Core Shell Nanoparticles

We synthesized monodisperse PdSn/SnOx core/shell nanoparticles with excellent ethanol oxidation reaction activity and durability.

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