One-pot synthesis of carbon-supported monodisperse palladium nanoparticles as excellent electrocatalyst for ethanol and formic acid oxidation

Wang, Qiang; Liao, Yuxiang; Zhang, Heyou; Li, Jun; Zhao, Wei; Chen, Shengli

doi:10.1016/j.jpowsour.2015.05.033

Cited by 41 publications

(21 citation statements)

References 48 publications

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“…Furthermore, added surfactants have negative effects on the properties of these materials and surfactant-removingp rocesses are alwaysd ifficult or required to be performedu nder harsh conditions. [19][20][21][22] In addition, many studies used anothern oble metal as the alloy content, which contributes little to decreasing the amounto fn oble metal. Therefore, it is crucialt od evelop ac lean and fast synthetic approach without involving surfactants or another noble metali n preparing economical 3D alloy NNC catalysts with enhanced performance towards ethanole lectro-oxidation.…”

Section: Introductionmentioning

confidence: 99%

Clean Synthesis of an Economical 3D Nanochain Network of PdCu Alloy with Enhanced Electrocatalytic Performance towards Ethanol Oxidation

Liu

Huang

Cai

et al. 2015

Chemistry A European J

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A one-pot method for the fast synthesis of a 3D nanochain network (NNC) of PdCu alloy without any surfactants is described. The composition of the as-prepared PdCu alloy catalysts can be precisely controlled by changing the precursor ratio of Pd to Cu. First, the Cu content changes the electronic structure of Pd in the 3D NNC of PdCu alloy. Second, the 3D network structure offers large open pores, high surface areas, and self-supported properties. Third, the surfactant-free strategy results in a relatively clean surface. These factors all contribute to better electrocatalytic activity and durability towards ethanol oxidation. Moreover, the use of copper in the alloy lowers the price of the catalyst by replacing the noble metal palladium with non-noble metal copper. The composition-optimized Pd80 Cu20 alloy in the 3D NNC catalyst shows an increased electrochemically active surface area (80.95 m(2) g(-1) ) and a 3.62-fold enhancement of mass activity (6.16 A mg(-1) ) over a commercial Pd/C catalyst.

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Section: Introductionmentioning

confidence: 99%

Clean Synthesis of an Economical 3D Nanochain Network of PdCu Alloy with Enhanced Electrocatalytic Performance towards Ethanol Oxidation

Liu

Huang

Cai

et al. 2015

Chemistry A European J

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“…Vários estudos têm sido relatados sobre o tamanho e efeitos de dispersão das nanopartículas de paládio na oxidação eletroquímica do ácido fórmico [35,36].…”

Section: Mecanismo Da Reação De Oxidação Eletroquímica Do áCido Fórmiunclassified

“…Os desempenhos das células a combustível dependem do tamanho e dispersão das nanopartículas e, da limpeza de superfície dos eletrocatalisadores [35,97,98] Au melhora, consideravelmente, o desempenho dos eletrocatalisadores à base de Pd na reação eletroquímica e que os materiais PdAu/MWCNTs híbridos poderiam ter um potencial para ser utilizado em células a combustível de ácido fórmico direto (DFAFCs).…”

Section: Mecanismo Da Reação De Oxidação Eletroquímica Do áCido Fórmiunclassified

“…O eletrocatalisador de Pd altamente ativo para a oxidação eletroquímica do combustível no ânodo é um dos principais requisitos para a aplicação prática de uma célula a combustível de líquido direto, por exemplo, células a combustível de ácido fórmico direto (DFAFC) [35]. O paládio possui menor custo e, também, é mais abundante na crosta terrestre quando comparado aos outros metais preciosos, apresenta atividade eletrocatalítica desejável 5 para oxidação eletroquímica direta das pequenas moléculas orgânicas, tais como ácido fórmico, etanol e metanol e, possui uma ampla variedade de aplicações [35][36][37].…”

Section: Introductionunclassified

“…O paládio possui menor custo e, também, é mais abundante na crosta terrestre quando comparado aos outros metais preciosos, apresenta atividade eletrocatalítica desejável 5 para oxidação eletroquímica direta das pequenas moléculas orgânicas, tais como ácido fórmico, etanol e metanol e, possui uma ampla variedade de aplicações [35][36][37].…”

Section: Introductionunclassified

See 2 more Smart Citations

Estudo da oxidação eletroquímica do ácido fórmico utilizando eletrocatalisadores Pd/C-Sb2O5.SnO2, PdAu/C-Sb2O5.SnO2, PdIr/C-Sb2O5.SnO2 e PdAulr/C-Sb2O5.SnO2 preparados via redução por borohidreto de sódio

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Electrocatalytic Oxidations of Formic Acid and Ethanol over Pd Catalysts Supported on a Doped Polypyrrole‐Carbon Composite

et al. 2017

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In this study, a highly efficient Pd catalyst supported on a conducting polymer‐carbon composite was prepared for electro‐oxidations of ethanol and formic acid. A polypyrrole‐carbon composite was synthesized and modified by doping camphor sulfonic acid (CSA) during the polymerization step of pyrrole at room temperature. The resulting CSA‐doped polypyrrole‐carbon composite (PPyCC) showed significantly increased specific surface area and enhanced electrical conductivity compared with a polypyrrole‐carbon composite without doping (PPyC). From the electrochemical tests, it was observed that the Pd‐supported on CSA‐doped polypyrrole‐carbon composite (Pd/PPyCC) exhibited much larger electrochemical surface area (ECSA), enhanced catalytic activity and high durability towards the oxidations of ethanol and formic acid. The results indicate that the camphor sulfonic acid serving as both dopant and surfactant could improve the electrical conductivity and morphology of support material with enhanced interaction between Pd nanoparticles and support material.

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One-pot synthesis of carbon-supported monodisperse palladium nanoparticles as excellent electrocatalyst for ethanol and formic acid oxidation

Cited by 41 publications

References 48 publications

Clean Synthesis of an Economical 3D Nanochain Network of PdCu Alloy with Enhanced Electrocatalytic Performance towards Ethanol Oxidation

Clean Synthesis of an Economical 3D Nanochain Network of PdCu Alloy with Enhanced Electrocatalytic Performance towards Ethanol Oxidation

Estudo da oxidação eletroquímica do ácido fórmico utilizando eletrocatalisadores Pd/C-Sb2O5.SnO2, PdAu/C-Sb2O5.SnO2, PdIr/C-Sb2O5.SnO2 e PdAulr/C-Sb2O5.SnO2 preparados via redução por borohidreto de sódio

Electrocatalytic Oxidations of Formic Acid and Ethanol over Pd Catalysts Supported on a Doped Polypyrrole‐Carbon Composite

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