Copper–palladium core–shell as an anode in a multi-fuel membraneless nanofluidic fuel cell: toward a new era of small energy conversion devices

Maya-Cornejo, J.; Ortiz-Ortega, E.; Álvarez‐Contreras, Lorena; Arjona, Noé; Guerra‒Balcázar, Minerva; Ledesma‐García, J.; Arriaga, L.G.

doi:10.1039/c4cc08529a

Cited by 49 publications

(42 citation statements)

References 18 publications

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“…These shifts on the diffraction peaks of Cu@Pd and Cu@Pt indicated that there is a solid solution but not a segregation of the noble metal on the surface, being confirmed by TEM. The XRD patterns for the commercial Pd/C electrocatalyst exhibited peaks located at 2h = 40.3, 46.78, 68.22, 82.12, and 86.94°, which are characteristic of a face-centered cubic structure for Pd and correspond to their (1 1 1), (2 0 0), (2 2 0), (3 1 1), and (2 2 2) planes, respectively [22,29,30]. Furthermore, the XRD pattern for the Cu@Pd/C electrocatalyst shows a shifting toward higher 2h values as the Cu@Pt/C electrocatalysts, their values were 2h = 41.41, 48.30, 70.95, and 85.85°, which correspond to its (1 1 1), (2 0 0), (2 2 0), and (3 1 1) planes, respectively [22].…”

Section: Physicochemical Characterization Of Cu@pd/c and Cu@pt C Elecmentioning

confidence: 98%

“…This design was based on a previous report [22,23]. Carbon nanofoam (Marketech International, Inc.) was used as the basis for the threedimensional flow-through electrodes tested in this study.…”

Section: Air-breathing Nanofluidic Fuel Cellmentioning

confidence: 99%

“…The synthesis protocol of both catalysts was based on a chemical reduction method that has been previously used to obtain Cu@Pd nanoparticles [22]. To synthesize the Cu@Pd/C electrocatalyst, 0.1 g polyvinylpyrrolidone (PVP, wt.…”

Section: Synthesis Of Cu@pd/c and Cu@pt Electrocatalystsmentioning

confidence: 99%

“…The second disruptive modification consisted in using micro and nanoporous carbon electrodes in which both streams flow through the electrodes enhancing the electrocatalytic activity (resulting in higher performances) due to the high surface area of the porous electrodes [21]. Nowadays, devices with these characteristics are the most employed for the electrochemical oxidation of several fuels such as formic acid, ethanol, ethylene glycol, and glycerol [22,23].…”

Section: Introductionmentioning

confidence: 99%

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Electrooxidation of crude glycerol as waste from biodiesel in a nanofluidic fuel cell using Cu@Pd/C and Cu@Pt/C

Maya-Cornejo

Guerra‒Balcázar

Arjona

et al. 2016

Fuel

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Section: Physicochemical Characterization Of Cu@pd/c and Cu@pt C Elecmentioning

confidence: 98%

Section: Air-breathing Nanofluidic Fuel Cellmentioning

confidence: 99%

Section: Synthesis Of Cu@pd/c and Cu@pt Electrocatalystsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Electrooxidation of crude glycerol as waste from biodiesel in a nanofluidic fuel cell using Cu@Pd/C and Cu@Pt/C

Maya-Cornejo

Guerra‒Balcázar

Arjona

et al. 2016

Fuel

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“…Within the fuel cells category, different organic liquid fuels were used as benign fuel, such as methanol, formic acid, ethanol or ethylene glycol. [12][13][14][15] For example, Esquivel et al presented a paper-based direct methanol fuel cell that can be integrated within lateral flow test strips. 15 However, the electrochemical reactions involving these organic liquid fuels often require precious metal catalysts such as platinum or palladium that are scarce and thus not readily disposable.…”

mentioning

confidence: 99%

Evaluation of Redox Chemistries for Single-Use Biodegradable Capillary Flow Batteries

Ibrahim

Alday

Sabaté

et al. 2017

J. Electrochem. Soc.

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The rate of battery waste generation is rising dramatically worldwide due to increased use and consumption of electronic devices. A new class of portable and biodegradable capillary flow batteries was recently introduced as a solution for single-use disposable applications. The concept utilizes stored organic redox species and supporting electrolytes inside a dormant capillary flow cell which is activated by the dropwise addition of aqueous liquid. Herein, various organic redox species are systematically evaluated for prospective use in disposable capillary flow cells with regards to their electrochemical characteristics, solubility, storability and biodegradability. Qualitative ex-situ techniques are first applied to assess half-cell solubility, redox potential and kinetics, followed by quantitative in-situ measurements of discharge performance of selected redox chemistries in a microfluidic cell with flow-through porous electrodes. Para-benzoquinone in oxalic acid and either hydroquinone sulfonic acid or ascorbic acid in potassium hydroxide are identified for the positive and negative half-cells, respectively, yielding a maximum discharge power density of 50 mW/cm 2 . A prototype capillary flow battery using the same redox chemistries demonstrates robust cell voltages above 1.0 V and maximum discharge power of 1.9 mW. These results show that practical primary battery performance can be achieved with biodegradable chemistries in a disposable device. The market demand for small-size single-use electronic devices such as portable sensors and diagnostic devices has been rising drastically in recent years. The power needs of such devices have so far been met by Li-ion batteries and other primary battery technologies, resulting in a consequent rise in their consumption. These batteries often contain heavy metals and strong electrolytes which make them one of the most hazardous components of electronic waste.1 In addition, the majority of the primary Li batteries used globally are not recycled nor properly disposed of, thus ending up in landfills without regulations.2 In applications that do not require long discharge times and have modest capacity requirements such as medical devices, these batteries are not even fully discharged before being disposed of. This requires further resources for re-extracting the materials if not recovered, which is not sustainable and raises concerns about the abundance of these resources. The end-of-life fate of these batteries and their life cycle assessment therefore only justifies the use in rechargeable applications beyond hundreds of cycles.3,4 These issues trigger a worrying concern about associated future environmental hazards from the battery waste generation and urgently call for novel alternatives, tightened environmental policies and switching the linear consumption habit of "take-make-dispose" for these primary batteries into a circular economy model. This approach utilizes novel concepts such as green electronics and cradle-to-cradle design to eliminate waste from the conc...

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Perspectives on Photocatalytic Paper‐Based Batteries Fueled by Alcohol

Zanata,

Zapata,

Wender

et al. 2024

Electroanalysis

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Among the energy demands, innovative solutions are required to power various devices. Enter paper‐based microfluidic fuel cells (PµFCs) running on eco‐friendly alcohols from biomass. While lightweight and disposable, they mainly rely on costly noble‐metal catalysts for high efficiency. In this context, the concept of photo paper batteries (pPBs), utilizing affordable sunlight‐activated semiconductors to drive alcohol oxidation on paper, opens the possibility to disposable and affordable energy solutions. Our review highlights recent progress in PµFCs fueled by alcohols like methanol, ethanol, ethylene glycol, and glycerol. We explore semiconductor advancements driving anodic reactions and envision the potential of pPBs.

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Copper–palladium core–shell as an anode in a multi-fuel membraneless nanofluidic fuel cell: toward a new era of small energy conversion devices

Cited by 49 publications

References 18 publications

Electrooxidation of crude glycerol as waste from biodiesel in a nanofluidic fuel cell using Cu@Pd/C and Cu@Pt/C

Electrooxidation of crude glycerol as waste from biodiesel in a nanofluidic fuel cell using Cu@Pd/C and Cu@Pt/C

Evaluation of Redox Chemistries for Single-Use Biodegradable Capillary Flow Batteries

Perspectives on Photocatalytic Paper‐Based Batteries Fueled by Alcohol

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