Facile electrocatalytic oxidation of ethanol using Ag/Pd nanoalloys modified carbon ionic liquid electrode

Safavi, Afsaneh; Kazemi, Hojjat; Momeni, Safieh; Tohidi, Maryam; Khanipour, Peyman

doi:10.1016/j.ijhydene.2012.12.040

Cited by 38 publications

(18 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, Ag cathodes have been reported to be more stable than Pt ones during long-term operation [12]. On the other hand, Ag and its alloys show better tolerance toward methanol [7e11,13] and ethanol [14] poisoning than Pt.…”

Section: Introductionmentioning

confidence: 99%

Carbon supported Ag and Ag–Co catalysts tolerant to methanol and ethanol for the oxygen reduction reaction in alkaline media

Hernández-Rodríguez

Goya

Arévalo

et al. 2016

International Journal of Hydrogen Energy

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Carbon supported Ag and Ag–Co catalysts tolerant to methanol and ethanol for the oxygen reduction reaction in alkaline media

Hernández-Rodríguez

Goya

Arévalo

et al. 2016

International Journal of Hydrogen Energy

View full text Add to dashboard Cite

“…[7,8] Among various metals,A gh as been av ery popularc hoice to form Ag-Pd alloys with improved overall performance due to the unique synergistic interaction between Ag and Pd. [9][10][11] Besides the composition, the catalytic properties of metal nanocrystals are also influenced by their morphologies. Hollow-structured nanoframes are of great interest for electrocatalytic applications because they possess large exposed interior/exterior surfaces as well as the inside hollow space as compared to their solid counterparts, andt hus are capable of showingi mproved activities.…”

mentioning

confidence: 99%

“…Due to the Ag-rich feature of the Ag-Pd alloy nanoframes, both the Ag oxide reduction peak and the Pd oxide reduction peak could be observed in the CV curve of the Ag-Pd alloy nanoframes. [10,28] According to the electric chargesf or oxygen desorption in PdO during the negative scan, [29] the electrochemically active surfacea rea (ECSA)o ft he Ag-Pd alloy nanoframes and the Pd/C catalysta re identified as 84.3 and 46.4 m 2 g À1 ,respectively (inset of Figure 3a). Figure 3b displays the CV curveso fm ethanolo xidation, which are normalized by the Pd weight.…”

mentioning

confidence: 99%

Controllable Galvanic Synthesis of Triangular Ag–Pd Alloy Nanoframes for Efficient Electrocatalytic Methanol Oxidation

Luo

Fan

et al. 2015

Chemistry A European J

View full text Add to dashboard Cite

Triangular Ag-Pd alloy nanoframes were successfully synthesized through galvanic replacement by using Ag nanoprisms as sacrificial templates. The ridge thickness of the Ag-Pd alloy nanoframes could be readily tuned by adjusting the amount of the Pd source during the reaction. These obtained triangular Ag-Pd alloy nanoframes exhibit superior electrocatalytic activity for the methanol oxidation reaction as compared with the commercial Pd/C catalyst due to the alloyed Ag-Pd composition as well as the hollow-framed structures. This work would be highly impactful in the rational design of future bimetallic alloy nanostructures with high catalytic activity for fuel cell systems.

show abstract

“…Of the various pure metals, palladium (Pd) is known to be the most active catalyst for the ethanol electrooxidation reaction (EOR) in alkaline media . Also, higher catalytic efficiencies are attainable by using certain bi‐ or trimetallic alloys or ad‐atom‐modified Pd structures . In addition, activity promotion by using various oxide supports has been frequently reported …”

Section: Introductionmentioning

confidence: 99%

Highly Efficient Ethanol Electrooxidation on a Synergistically Active Catalyst Based on a Pd‐Loaded Composite of Hydroxyapatite

et al. 2016

View full text Add to dashboard Cite

By using a well‐structured composite of hydroxyapatite and carbon nanotubes and the immobilization of palladium nanoparticles (Pd NPs), a synergistically active catalyst toward the ethanol electrooxidation reaction (EOR) is proposed herein. The application of hydroxy‐rich substrates, such as hydroxyapatite, for the immobilization of Pd NPs could be promising to enhance electrocatalyst activity toward the ethanol oxidation reaction. The hydroxyapatite–carbon nanotubes composites were synthesized through two distinct precipitation approaches. The structural features of each composite were characterized by using X‐ray diffraction spectroscopy and transmission electron microscopy. According to electrochemical tests, remarkable enhancements were achieved in the electrocatalytic activity, kinetic parameters, and catalyst durability. The proposed catalyst showed a mass‐independent current of 1874.6 mA mgPd−1 and an onset potential of −650 mV versus Ag/AgCl reference electrode toward EOR. The catalytic improvements can be attributed to synergetic effects between the immobilized Pd NPs and the functionalities on the carbon nanotube–hydroxyapatite substrate.

show abstract

Facile electrocatalytic oxidation of ethanol using Ag/Pd nanoalloys modified carbon ionic liquid electrode

Cited by 38 publications

References 38 publications

Carbon supported Ag and Ag–Co catalysts tolerant to methanol and ethanol for the oxygen reduction reaction in alkaline media

Carbon supported Ag and Ag–Co catalysts tolerant to methanol and ethanol for the oxygen reduction reaction in alkaline media

Controllable Galvanic Synthesis of Triangular Ag–Pd Alloy Nanoframes for Efficient Electrocatalytic Methanol Oxidation

Highly Efficient Ethanol Electrooxidation on a Synergistically Active Catalyst Based on a Pd‐Loaded Composite of Hydroxyapatite

Contact Info

Product

Resources

About