Cyclic voltammetry electrodeposition of well-dispersed Pd nanoparticles on carbon paper as a flow-through anode for microfluidic direct formate fuel cells

Nanoscale ◽  
2020 ◽  
Vol 12 (39) ◽  
pp. 20270-20278
Author(s):  
Tong Zhang ◽  
Xun Zhu ◽  
Ding-Ding Ye ◽  
Rong Chen ◽  
Yuan Zhou ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Fuel Cells ◽  
Palladium Nanoparticles ◽  
Pd Nanoparticles ◽  
Catalytic Performance ◽  
Carbon Paper ◽  
Flow Through ◽  
Catalyst Utilization

Cyclic voltammetry electrodeposition of palladium nanoparticles on carbon paper results in high catalytic performance, catalyst utilization and stability for their use in microfluidic direct formate fuel cells.

Electrooxidation for Methanol on Pd Nanoparticles Modified Electrodes in Alkaline Medium

2012 ◽  
Vol 535-537 ◽  
pp. 431-435
Author(s):  
Ming Li Xu ◽  
Guo Tao Yang
Keyword(s):  
Cyclic Voltammetry ◽  
Catalytic Oxidation ◽  
Modified Electrode ◽  
Palladium Nanoparticles ◽  
Modified Electrodes ◽  
Pd Nanoparticles ◽  
Catalytic Performance ◽  
Electrochemical Process ◽  
Glassy Carbon Electrodes ◽  
Cyclic Voltammetry Method

In this paper, Palladium nanoparticles were electrodeposited on the surface of glassy carbon electrodes by more circles cyclic voltammetry method and Palladium nanoparticles modified electrode (Pd/GCE) was obtained. Morphology and crystal structure of nanoparticles were characterized by scanning electron microscope (SEM) and X-ray diffraction (XRD). The performance and electrochemical process of catalytic oxidation methanol were measured and analyzed by cyclic voltammetry (CV), chronoamperometric curves (i-t) and alternating current impedance spectra (AC impedance) in KOH solution. The results showed that catalytic activity of Pd nanoparticles modified electrode for methanol was over 30 times higher than that of the plate Pd electrode, and catalytic performance was good. In addition, the catalytic oxidation was mainly diffusion-controlled process.

Ultrafine Pd Nanoparticles Synthesis and Catalytic Performance in Methane Partial Oxidation

2011 ◽  
Vol 284-286 ◽  
pp. 1905-1908
Author(s):  
Bao Song Fu ◽  
Hu Liu ◽  
Guo Min Xiao
Keyword(s):  
Partial Oxidation ◽  
Palladium Nanoparticles ◽  
Oxidation Reaction ◽  
Pd Nanoparticles ◽  
Catalytic Performance ◽  
Methane Partial Oxidation ◽  
Narrow Size Distribution ◽  
Pd Nanoparticle ◽  
Partial Oxidation Reaction ◽  
Nanoparticles Synthesis

Narrow size distribution Palladium nanoparticles was synthesized by adding Pd precursor into a modified PMHS polymer solution, and then jelled by aluminium. The multi-functional polymer was characterized by NMR; Pd nanoparticle samples were characterized by TEM and catalytic activity was tested in methane partial oxidation reaction.

Pd nanoparticles stabilized with phosphine-functionalized porous ionic polymer for efficient catalytic hydrogenation of nitroarenes in water

2020 ◽  
Vol 44 (9) ◽  
pp. 3681-3689 ◽  
Author(s):  
Yizhu Lei ◽  
Zaifei Chen ◽  
Guosong Lan ◽  
Renshu Wang ◽  
Xiao-Yu Zhou
Keyword(s):  
Catalytic Activity ◽  
Catalytic Hydrogenation ◽  
Palladium Nanoparticles ◽  
Pd Nanoparticles ◽  
Catalytic Performance ◽  
High Catalytic Activity ◽  
Ionic Polymer ◽  
Electron Donation ◽  
Nano Size ◽  
Excellent Catalytic Performance

Small palladium nanoparticles stabilized with phosphine-functionalized PIP displayed high catalytic activity for nitroarenes hydrogenation. Nano-size Pd particles, electron-donation effect of phosphine ligand, and surface wettability account for its excellent catalytic performance.

scholarly journals Selective electrocatalysis of biofuel molecular oxidation using palladium nanoparticles generated on Shewanella oneidensis MR-1

2018 ◽  
Vol 6 (23) ◽  
pp. 10655-10662 ◽  
Author(s):  
Ranran Wu ◽  
Xiaochun Tian ◽  
Yong Xiao ◽  
Jens Ulstrup ◽  
Hans Erik Mølager Christensen ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Electrochemical Oxidation ◽  
Palladium Nanoparticles ◽  
Shewanella Oneidensis ◽  
Pd Nanoparticles ◽  
Microbial Production ◽  
Catalytic Function ◽  
Molecular Scale

Microbial production of molecular scale palladium (PD) nanoparticles (NPs) is important due to their catalytic function in selective electrochemical oxidation of a number of core fuel molecules in fuel cells.

Facile and green cinchonidine-assisted synthesis of ultrafine and well-dispersed palladium nanoparticles supported on activated carbon with high catalytic performance

RSC Advances ◽  
2015 ◽  
Vol 5 (92) ◽  
pp. 75272-75280 ◽  
Author(s):  
Trung Tran Si Bui ◽  
Yeonwoo Kim ◽  
Sehun Kim ◽  
Hangil Lee
Keyword(s):  
Activated Carbon ◽  
Green Synthesis ◽  
Palladium Nanoparticles ◽  
Pd Nanoparticles ◽  
Catalytic Performance ◽  
Capping Agent ◽  
Supported Palladium

We report the facile and green synthesis of activated carbon-supported palladium (Pd/AC) containing homogeneously dispersed Pd nanoparticles (Pd NPs) by using eco-friendly and naturally available cinchonidine (CD) as the capping agent.

Carbon Based Electrodes for Upscaling Microfluidic Fuel Cells

2012 ◽  
Author(s):  
D. Fuerth ◽  
A. Bazylak
Keyword(s):  
Fuel Cells ◽  
Surface Area ◽  
Electrode Surface ◽  
Porous Electrode ◽  
Porous Electrodes ◽  
Carbon Paper ◽  
Platinum Black ◽  
Active Electrode ◽  
Flow Through ◽  
Carbon Based

In this work, we present an experimental microfluidic fuel cell with a novel up-scaled porous electrode architecture that provides higher overall power output compared to conventional microfluidic fuel cells and a methodology for electrode material evaluation to inform designs for improved performance. Our proof-of-concept architecture is an up-scaled version of a previously presented flow-through cell with more than nine times the active electrode surface area. We employed 0.04M formic acid and 0.01M potassium permanganate as fuel and oxidant, respectively, dissolved in a 1M sulfuric acid electrolyte. Platinum black was employed as the catalyst for both anode and cathode. Carbon based porous electrodes including felt, cloth, fibre, and foam were compared to traditional Toray carbon paper in order to characterize their respective performances. We also discussed current densities normalized by electrode volume, which is appropriate for comparison of flow-through architectures. The traditional method of current normalization by projected electrode surface area is also presented.

Up-Scaled Microfluidic Fuel Cells With Porous Flow-Through Electrodes

2013 ◽  
Vol 135 (2) ◽  
Author(s):  
D. Fuerth ◽  
A. Bazylak
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Surface Area ◽  
Electrode Surface ◽  
Porous Electrode ◽  
Porous Electrodes ◽  
Carbon Paper ◽  
Platinum Black ◽  
Flow Through ◽  
Microfluidic Fuel Cell

In this work, an experimental microfluidic fuel cell is presented with a novel up-scaled porous electrode architecture that provides higher available surface area compared to conventional microfluidic fuel cells, providing the potential for higher overall power outputs. Our proof-of-concept architecture is an up-scaled flow-through fuel cell with more than nine times the active electrode surface area of the flow-through architecture first proposed by Kjeang et al. (2008, “A Microfluidic Fuel Cell With Flow-Through Porous Electrodes,” J. Am. Chem. Soc., 130, pp. 4000–4006). Formic acid and potassium permanganate were employed as the fuel and oxidant, respectively, both dissolved in a sulfuric acid electrolyte. Platinum black was employed as the catalyst for both anode and cathode, and the performances of carbon-based porous electrodes including cloth, fiber, and foam were compared to that of traditional Toray carbon paper (TGP-H-120). The effects of catalyst loading were investigated in a microfluidic fuel cell containing 80 pores per linear inch carbon foam electrodes. A discussion is also provided of current density normalization techniques via projected electrode surface area and electrode volume, the latter of which is a highly informative means for comparing flow-through architectures.

Facile and surfactant-free synthesis of Pd nanoparticles by the extract of the fruits of Piper longum and their catalytic performance for the Sonogashira coupling reaction in water under ligand- and copper-free conditions

RSC Advances ◽  
2015 ◽  
Vol 5 (4) ◽  
pp. 2562-2567 ◽  
Author(s):  
Mahmoud Nasrollahzadeh ◽  
S. Mohammad Sajadi ◽  
Mehdi Maham ◽  
Ali Ehsani
Keyword(s):  
Palladium Nanoparticles ◽  
Coupling Reaction ◽  
Pd Nanoparticles ◽  
Catalytic Performance ◽  
Sonogashira Coupling ◽  
Facile Synthesis ◽  
Piper Longum ◽  
Sonogashira Coupling Reaction ◽  
Reaction In Water

This work reports a facile synthesis of palladium nanoparticles (Pd NPs) by the extract of the fruits of Piper longum without any stabilizer or surfactant.

Size-dependent Hydrogen trapping in Palladium nanoparticles

2021 ◽  
Author(s):  
Wang Liu ◽  
Yann Magnin ◽  
Georg Daniel Förster ◽  
Julie Bourgon ◽  
Thomas Len ◽  
...  
Keyword(s):  
Experimental Study ◽  
Theoretical Approach ◽  
Palladium Nanoparticles ◽  
Hydrogen Absorption ◽  
Pd Nanoparticles ◽  
Hydrogen Trapping ◽  
Size Dependent

We report an experimental study, supported by a theoretical approach based on simulations, to explore the phenomenon of H trapping in small Pd nanoparticles. Hydrogen absorption/desorption of a series of...

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