Electro-oxidation of methanol, 1-propanol and 2-propanol on Pt and Pd in alkaline medium

Liu, Jianping; Ye, Jianqing; Xu, Chen; Tong, Yexiang

doi:10.1016/j.jpowsour.2007.11.015

Cited by 130 publications

(99 citation statements)

References 32 publications

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“…On the contrary, on a Pd electrode acetone formation would seem to occur smoothly. Even though higher current densities were obtained in comparison to Pt (also observed by Liu et al [98]), lower amount of acetone is produced indicating that other reaction products not detectable with HPLC might be produced and additional methods are required for their confirmation.…”

Section: Hplc Methodsmentioning

confidence: 68%

The correlation of electrochemical and fuel cell results for alcohol oxidation in acidic and alkaline media

Santasalo-Aarnio

Tuomi

Jalkanen

et al. 2013

Electrochimica Acta

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Section: Hplc Methodsmentioning

confidence: 68%

The correlation of electrochemical and fuel cell results for alcohol oxidation in acidic and alkaline media

Santasalo-Aarnio

Tuomi

Jalkanen

et al. 2013

Electrochimica Acta

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“…An anodic peak was noted in the reverse scan, which was generated by the removal of the incompletely oxidized carbonaceous species that was formed in the forward scan. [30,42,43] Furthermore, an additional cathodic reduction peak of copper oxide was also observed at À0.25 V for the Pd 56 -Cu 44 /C and Pd 39 -Cu 61 /C samples, which was probably due to the higher copper content in these two catalysts.…”

Section: Resultsmentioning

confidence: 90%

Supported Pd–Cu Bimetallic Nanoparticles That Have High Activity for the Electrochemical Oxidation of Methanol

Zhang

Zhou

Gao

et al. 2012

Chemistry A European J

170

116

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Monodisperse bimetallic Pd–Cu nanoparticles with controllable size and composition were synthesized by a one‐step multiphase ethylene glycol (EG) method. Adjusting the stoichiometric ratio of the Pd and Cu precursors afforded nanoparticles with different compositions, such as Pd85–Cu15, Pd56–Cu44, and Pd39–Cu61. The nanoparticles were separated from the solution mixture by extraction with non‐polar solvents, such as n‐hexane. Monodisperse bimetallic Pd–Cu nanoparticles with narrow size‐distribution were obtained without the need for a size‐selection process. Capping ligands that were bound to the surface of the particles were removed through heat treatment when the as‐prepared nanoparticles were loaded onto a Vulcan XC‐72 carbon support. Supported bimetallic Pd–Cu nanoparticles showed enhanced electrocatalytic activity towards methanol oxidation compared with supported Pd nanoparticles that were fabricated according to the same EG method. For a bimetallic Pd–Cu catalyst that contained 15 % Cu, the activity was even comparable to the state‐of‐the‐art commercially available Pt/C catalysts. A STEM‐HAADF study indicated that the formation of random solid‐solution alloy structures in the bimetallic Pd85–Cu15/C catalysts played a key role in improving the electrochemical activity.

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“…Strategies such as implementing an ''in-battery'' thermal storage unit to store the heat produced during the discharge cycle and release it during the charge cycle or operating the charge cycle (electrolysis) at a thermoneutral potential should be considered. 34 In addition, the efficiency calculated in this study did not consider the power loss for pumping and possible temperature variations. A more comprehensive multi-physics model taking into account all these factors can be developed in future to better estimate the system efficiency.…”

Section: -33mentioning

confidence: 99%

A novel solid oxide redox flow battery for grid energy storage

Zhao

et al. 2011

Energy Environ. Sci.

162

146

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In this work we report proof-of-concept of a novel redox flow battery consisting of a solid oxide electrochemical cell (SOEC) integrated with a redox-cycle unit. The charge/discharge characteristics were explicitly observed by operating between fuel cell and electrolysis modes of the SOEC along with ''in-battery'' generation and storage of H 2 realized by an in situ closed-loop reversible steam-metal reaction in the redox-cycle unit. With Fe/FeO as the redox materials, the new storage battery can produce an energy capacity of 348 Wh/kg-Fe and round-trip efficiency of 91.5% over twenty stable charge/discharge cycles. This excellent performance combined with robustness, environmental friendliness and sustainability promise the new battery to be a transformational energy storage device for grid application.Electrical energy storage plays a critical role in grid optimization of bulk power production, system balancing of variable or diurnal renewable resources, and auxiliary power services. It is the key enabler for future smart grid. Without, or with little, energy storage capability, the power grid system must rely upon redundant generation and transmission assets to meet the reliability requirements, causing significant underuse of available grid infrastructures and therefore poor system efficiency; 1-3 an unpredictable, intermittent renewable energy input from sources such as solar and wind can easily destabilize an electricity grid with varying demand, particularly with the much more dynamic utility demand of the future. [4][5][6][7][8] Electrical energy storage is, in principle, a reversible energy conversion process that transforms electricity into other forms of energy (e.g., kinetic, potential and chemical). Its ability to store electricity for later use makes it an ideal buffer for balancing demand and supply of electrical energy. The principal requirements for a gridscale energy storage system include fast response time, high rate capacity, high round-trip efficiency, long cycle life, low life-cycle cost, and scalability. Of all the types of energy storage devices, redox flow battery (RFB) and Na-S/ZEBRA battery (NSB) technologies stand out with a potential to meet all of these requirements. [9][10][11] The more commonly known rechargeable batteries such as Li-ion are yet considered suitable for large-scale energy storage, primarily due to the concerns of safety and low rate-capacity. 12 The advantage of RFB to be flexible in system design for either power (e.g., short-term frequency regulation) or energy application (e.g., long-term load shifting) is a valuable asset for renewable integration. The high energy/power densities and capability to perform fast and deep charge/discharge cycles has positioned the NSB as a front runner in the commercial development of large-scale energy storage devices.

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Electro-oxidation of methanol, 1-propanol and 2-propanol on Pt and Pd in alkaline medium

Cited by 130 publications

References 32 publications

The correlation of electrochemical and fuel cell results for alcohol oxidation in acidic and alkaline media

The correlation of electrochemical and fuel cell results for alcohol oxidation in acidic and alkaline media

Supported Pd–Cu Bimetallic Nanoparticles That Have High Activity for the Electrochemical Oxidation of Methanol

A novel solid oxide redox flow battery for grid energy storage

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