A Monolithic Carbon Foam-Supported Pd-Based Catalyst towards Ethanol Electro-Oxidation in Alkaline Media

2016 ◽  
Vol 163 (5) ◽  
pp. F424-F427 ◽  
Author(s):  
Yinshi Li ◽  
Jianhao Lv ◽  
Yaling He
Keyword(s):  
Carbon Foam ◽  
Alkaline Media ◽  
Electro Oxidation ◽  
Supported Pd

Self-Supported Dendritic Pd Nanostructures: Surfactant-Free Synthesis and Their Superior Activity for Methanol Electro-Oxidation

NANO ◽  
2019 ◽  
Vol 14 (06) ◽  
pp. 1950073
Author(s):  
Shaozhen Wang ◽  
Biao Zang ◽  
Qiang Zhang ◽  
Hui Zhang ◽  
Liping Qu ◽  
...  
Keyword(s):  
Electrode Material ◽  
Electrocatalytic Activity ◽  
Palladium Nanoparticles ◽  
Specific Activity ◽  
Catalytic Performance ◽  
Alkaline Media ◽  
Clean Surface ◽  
Synthetic Strategy ◽  
Electro Oxidation ◽  
Supported Pd

This paper reports a surfactant-free synthesis of clean-surface dendritic Pd nanostructures. The key of this synthetic strategy was using ethanol as a reductant to directly reduce Pd(OH)2. In terms of electrocatalytic methanol oxidation in alkaline media, the clean-surface and self-supported Pd nanostructures are beneficial to a high catalytic performance, including superior electrocatalytic activity and stability. The as-prepared dendritic Pd shows 2.57 and 4.39 times higher specific activity than palladium nanoparticles and a commercial Pd/C catalyst, respectively. Furthermore, we demonstrated that the clean-surface nanoparticles exhibit higher performance than that of the surfactant-capped Pd nanostructures for methanol electro-oxidation. Therefore, the dendritic Pd nanostructures are potential candidates as the efficient electrode material in fuel cells.

Electro-catalysis of carbon black or titanium sub-oxide supported Pd–Gd towards formic acid electro-oxidation

RSC Advances ◽  
2016 ◽  
Vol 6 (73) ◽  
pp. 68989-68996 ◽  
Author(s):  
Nan He ◽  
Chuanguang Qin ◽  
Rumin Wang ◽  
Shuhui Ma ◽  
Yi Wang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Carbon Black ◽  
Formic Acid ◽  
Sodium Borohydride ◽  
Weight Percent ◽  
Reduction Reaction ◽  
Simultaneous Reduction ◽  
Electro Catalysis ◽  
Electro Oxidation ◽  
Supported Pd

Carbon black supported Pd–Gd catalysts (Pd–xGd/C, x is weight percent in catalyst) with different amounts of Gd were prepared by a simultaneous reduction reaction with sodium borohydride in aqueous solution.

ELECTRO-OXIDATION OF ETHANOL ON NANOCRYSTALLINE Pd/C CATALYST PROMOTED WITH OXIDE IN ALKALINE MEDIA

2009 ◽  
Vol 08 (01n02) ◽  
pp. 203-207 ◽  
Author(s):  
J. L. LU ◽  
CHANGWEI XU ◽  
SAN PING JIANG
Keyword(s):  
High Surface ◽  
Carbon Support ◽  
Alkaline Media ◽  
Particle Sizes ◽  
Linear Sweep ◽  
Direct Ethanol Fuel Cells ◽  
Oxidation Activity ◽  
Microstructure Change ◽  
Electro Oxidation ◽  
Oxidation Of Ethanol

Nanocrystalline Pd electrocatalyst promoted with transition metal oxide ( Co 3 O 4, NiO , and CoNiO x) is successfully synthesized on high surface carbon support by using intermittent microwave heating (IMH) method. The physical properties of the catalysts are characterized by XRD, TEM, and EDX. The results show that there is no significant microstructure change between Pd and Pd -oxide electrocatalysts and the particle sizes are in the range 5.8–3.9 nm. The linear sweep voltammogram and chronoamperometry results for the electro-oxidation of ethanol show that Pd -oxide/ C electrocatalysts exhibit much better electrochemical activity and stability as compared with pure Pd / C electrocatalyst. The results show that Pd – CoNiO x/ C exhibits the best stability and highest electro-oxidation activity, indicating the promising potential as an alternative electrocatalysts for the direct ethanol fuel cells.

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