Unexpectedly high stability and surface reconstruction of PdAuAg nanoparticles for formate oxidation electrocatalysis

Nanoscale ◽  
2020 ◽  
Vol 12 (21) ◽  
pp. 11659-11671 ◽  
Author(s):  
Bowei Pan ◽  
Fuyi Chen ◽  
Bo Kou ◽  
Junpeng Wang ◽  
Quan Tang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Surface Reconstruction ◽  
Oxidation Reaction ◽  
High Stability ◽  
Formate Oxidation

Pd3Au3Ag1 NPs on carbon nanotubes undergo a potential-driven surface reconstruction that improves the activity and durability for the electrocatalytic formate oxidation reaction.

Surface reconstruction of AgPd nanoalloy particles during the electrocatalytic formate oxidation reaction

Nanoscale ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 3469-3481 ◽  
Author(s):  
Longfei Guo ◽  
Fuyi Chen ◽  
Tao Jin ◽  
Huazhen Liu ◽  
Nan Zhang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Surface Reconstruction ◽  
Oxidation Reaction ◽  
Surface Coverage ◽  
Formate Oxidation

Ag49Pd51 nanoalloys undergo surface reconstruction on graphene where Pd surface coverage increases from 51.87 to 62.42% during the FOR, and the catalytic activity increases from 2.32 to 6.03 A mg−1Pd.

A high stability AuPd-ZrO 2 -multiwall carbon nanotubes supported-catalyst in a formic acid electro-oxidation reaction

2018 ◽  
Vol 451 ◽  
pp. 289-297 ◽  
Author(s):  
B. Lesiak ◽  
A. Malolepszy ◽  
M. Mazurkiewicz-Pawlicka ◽  
L. Stobinski ◽  
L. Kövér ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Formic Acid ◽  
Oxidation Reaction ◽  
High Stability ◽  
Supported Catalyst ◽  
Multiwall Carbon Nanotubes ◽  
Electro Oxidation ◽  
Multiwall Carbon

Surface reconstruction of AgPdF and AgPd nanoalloys under the formate oxidation reaction

2021 ◽  
Author(s):  
Quan Tang ◽  
Fuyi Chen ◽  
Qiao Wang ◽  
Tao Jin ◽  
Longfei Guo ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Surface Reconstruction ◽  
Current Density ◽  
Retention Time ◽  
Oxidation Reaction ◽  
Formate Oxidation

The correlation between the surface reconstruction of AgPdF and AgPd nanoalloys and their catalytic activity and stability in FOR is examined. AgPdO is reconstructed to form AgPd, whilst AgPdF maintains a record retention time of up to 78 hours and a higher current density.

Surface Pourbaix diagrams of AgPd nanoalloys and its application in formate oxidation reaction

2021 ◽  
pp. 138465
Author(s):  
Zhen Li ◽  
Fuyi Chen ◽  
Weiqi Bian ◽  
Bo Kou ◽  
Qiao Wang ◽  
...  
Keyword(s):  
Oxidation Reaction ◽  
Pourbaix Diagrams ◽  
Formate Oxidation

Catalytic activity of palladium-doped silver dilute nanoalloys for formate oxidation from a theoretical perspective

2019 ◽  
Vol 21 (40) ◽  
pp. 22598-22610 ◽  
Author(s):  
Nan Zhang ◽  
Fuyi Chen ◽  
Longfei Guo
Keyword(s):  
Catalytic Activity ◽  
Oxidation Reaction ◽  
Theoretical Perspective ◽  
Single Atom ◽  
High Catalytic Activity ◽  
Formate Oxidation ◽  
First Time ◽  
Single Atom Alloys

We demonstrate for the first time that the Pd1Ag single-atom alloys exhibit a high catalytic activity for formate oxidation reaction.

A novel strategy for the synthesis of sulfur-doped carbon nanotubes as a highly efficient Pt catalyst support toward the methanol oxidation reaction

2017 ◽  
Vol 5 (36) ◽  
pp. 19467-19475 ◽  
Author(s):  
Jing-Jing Fan ◽  
You-Jun Fan ◽  
Rui-Xiang Wang ◽  
Sheng Xiang ◽  
Hua-Guo Tang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Oxidation Reaction ◽  
Catalyst Support ◽  
Pt Nanoparticles ◽  
Pt Catalyst ◽  
Methanol Oxidation Reaction ◽  
Multi Walled Carbon Nanotubes ◽  
Novel Strategy ◽  
Walled Carbon Nanotubes ◽  
Functionalized Mwcnts

Sulfur-doped multi-walled carbon nanotubes (S-MWCNTs) derived from PEDOT-functionalized MWCNTs can significantly improve the dispersion of supported Pt nanoparticles and enhance their electrocatalytic performance for the MOR.

scholarly journals Electrochemical Performance Improvement of the Catalyst of the Methanol Micro-Fuel Cell Using Carbon Nanotubes

2019 ◽  
Author(s):  
Mohammad Kazemi Nasrabadi ◽  
Amir Ebrahimi-Moghadam ◽  
Mohammad Hosein Ahmadi ◽  
Ravinder Kumar ◽  
Narjes Nabipour
Keyword(s):  
Carbon Nanotubes ◽  
Fuel Cells ◽  
Fuel Cell ◽  
Carbon Black ◽  
Oxidation Reaction ◽  
High Energy ◽  
Proton Exchange ◽  
Operating Conditions ◽  
High Energy Density ◽  
Methanol Oxidation Reaction

Due to low working temperature, high energy density and low pollution, proton exchange fuel cells have been investigated under different operating conditions in different applications. Using platinum catalysts in methanol fuel cells leads to increasing the cost of this kind of fuel cell which is considered as a barrier to the commercialism of this technology. For this reason, a lot of efforts have been made to reduce the loading of the catalyst required on different supports. In this study, carbon black (CB) and carbon nanotubes (CNT) have been used as catalyst supports of the fuel cell as well as using the double-metal combination of platinum-ruthenium (PtRu) as anode electrode catalyst and platinum (Pt) as cathode electrode catalyst. The performance of these two types of electro-catalyst in the oxidation reaction of methanol has been compared based on electrochemical tests. Results showed that the carbon nanotubes increase the performance of the micro-fuel cell by 37% at maximum power density, compared to the carbon black. Based on thee-electrode tests of chronoamperometry and voltammetry, it was found that the oxidation onset potential of methanol for CNT has been around 20% less than CB, leading to the kinetic improvement of the oxidation reaction. The current density of methanol oxidation reaction increased up to 62% in CNT sample compared to CB supported one, therefore the active electrochemical surface area of the catalyst has been increased up to 90% by using CNT compared to CB which shows the significant rise of the electrocatalytic activity in CNT supported catalyst. Moreover, the resistance of the CNT supported sample to poisonous intermediate species has been found 3% more than CB supported one. According to the chronoamperometry test results, it was concluded that the performance and sustainability of the CNT electro-catalyst show remarkable improvement compared to CB electro-catalyst in the long term.

scholarly journals Extraordinary Hydrogen Evolution and Oxidation Reaction Activity from Carbon Nanotubes and Graphitic Carbons

ACS Nano ◽  
2014 ◽  
Vol 8 (8) ◽  
pp. 8447-8456 ◽  
Author(s):  
Rajib Kumar Das ◽  
Yan Wang ◽  
Svetlana V. Vasilyeva ◽  
Evan Donoghue ◽  
Ilaria Pucher ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Hydrogen Evolution ◽  
Oxidation Reaction

Nanoalloying effects on the catalytic activity of the formate oxidation reaction over AgPd and AgCuPd aerogels

2019 ◽  
Vol 7 (27) ◽  
pp. 16122-16135 ◽  
Author(s):  
Qiao Wang ◽  
Fuyi Chen ◽  
Longfei Guo ◽  
Tao Jin ◽  
Huazhen Liu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxidation Reaction ◽  
Formate Oxidation

Nanoalloying effects and dealloying endow D-AgCuPd aerogels with significantly enhanced FOR activity compared to their monometallic, bimetallic and trimetallic counterparts.

Synthesis of monodispersed Pt nanoparticles on plasma processed carbon nanotubes for methanol electro-oxidation reaction

2009 ◽  
Vol 19 (37) ◽  
pp. 6720 ◽  
Author(s):  
Zhongqing Jiang ◽  
Xinyao Yu ◽  
Zhong-jie Jiang ◽  
Yuedong Meng ◽  
Yicai Shi
Keyword(s):  
Carbon Nanotubes ◽  
Oxidation Reaction ◽  
Pt Nanoparticles ◽  
Electro Oxidation
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