Alkaline direct oxidation glucose fuel cell system using silver/nickel foams as electrodes

Chen, Jinyao; Zhao, Cindy X.; Zhi, Matthew M.; Wang, Kewei; Deng, Lulu; Xu, Gu

doi:10.1016/j.electacta.2012.01.071

Cited by 86 publications

(42 citation statements)

References 37 publications

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“…Further evidence was obtained by the UV and NMR measurements. As shown in Figure 4, a new absorption peak was observed in glucose/NaOH mixture solution at 278 nm, which was attributed to enediol [32,33]. Similar results could also be found in NMR data, as shown in Figure 5, where two -CH2 groups were detected, indicating the transformation of glucose to enediol.…”

Section: Electrooxidation Of Glucose On Ni(oh) 2 /Ni Sheetsupporting

confidence: 80%

Improving Linear Range Limitation of Non-Enzymatic Glucose Sensor by OH− Concentration

Yang

Liu

et al. 2020

Crystals

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The linear range of the non-enzymatic glucose sensor is usually much smaller than the glucose level of diabetic patients, calling for an effective solution. Despite many previous attempts, none have solved the problem. Such a challenge has now been conquered by raising the NaOH concentration in the electrolyte, where amperometry, X-ray diffraction, Fourier-transform infrared spectroscopy, and Nuclear magnetic resonance measurements have been conducted. The linear range has been successfully enhanced to 40 mM in 1000 mM NaOH solution, and it was also found that NaOH affected the degree of glucose oxidation, which influenced the current response during sensing. It was expected that the alkaline concentration must be 25 times higher than the glucose concentration to enhance the linear range, much contrary to prior understanding.

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Section: Electrooxidation Of Glucose On Ni(oh) 2 /Ni Sheetsupporting

confidence: 80%

Improving Linear Range Limitation of Non-Enzymatic Glucose Sensor by OH− Concentration

Yang

Liu

et al. 2020

Crystals

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“…27 A number of studies describe the use of Ni-based foams as an electrode support material for other electrocatalysts including Pt, 28−30 Rh, 29,31 Pd, 32−34 Ag, 35 Sn−Co, 36 and Co−W−B. 37 As an electrocatalyst support material, Ni foams offer valuable structural characteristics including a consistent open-pore threedimensional structure with tunable density and large surface area, and good stability in a range of different electrolytes, including strongly alkaline conditions.…”

Section: ■ Introductionmentioning

confidence: 99%

Electrochemically Active Nickel Foams as Support Materials for Nanoscopic Platinum Electrocatalysts

Drunen

Pilapil

Makonnen

et al. 2014

ACS Appl. Mater. Interfaces

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Platinum is deposited on open-cell nickel foam in low loading amounts via chemical reduction of Pt cations (specifically, Pt(2+) or Pt(4+)) originating from aqueous Pt salt solutions. The resulting Pt-modified nickel foams (Pt/Ni foams) are characterized using complementary electrochemical and materials analysis techniques. These include electron microscopy to examine the morphology of the deposited material, cyclic voltammetry to evaluate the electrochemical surface area of the deposited Pt, and inductively coupled plasma optical emission spectrometry to determine the mass of deposited Pt on the Ni foam substrate. The effect of potential cycling in alkaline media on the electrochemical behavior of the material and the stability of Pt deposit is studied. In the second part of this paper, the Pt/Ni foams are applied as electrode materials for hydrogen evolution, hydrogen reduction, oxygen reduction, and oxygen evolution reactions in an aqueous alkaline electrolyte. The electrocatalytic activity of the electrodes toward these processes is evaluated using linear sweep voltammetry curves and Tafel plots. The results of these studies demonstrate that nickel foams are acceptable support materials for nanoscopic Pt electrocatalysts and that the resulting Pt/Ni foams are excellent electrocatalysts for the hydrogen evolution reaction. An unmodified Ni foam is shown to be a highly active electrode for the oxygen evolution reaction.

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“…An alkaline medium can dramatically improve the kinetics of both oxygen reduction reaction (ORR) and alcohol oxidation reaction (AOR) [1,4]. Therefore, non-precious metal catalysts based on abundant transition metals, such as nickel [5] and silver [6], can be employed as catalysts, without compromising reaction rate and dramatically reducing system cost. In addition, the conductive ions (typically OH À ) in the anion exchange membranes (AEMs) transfer from the cathode to the anode, in an opposite direction to that of alcohol crossover.…”

Section: Introductionmentioning

confidence: 99%

Physicochemical properties of alkaline doped polybenzimidazole membranes for anion exchange membrane fuel cells

Zeng

Zhao

et al. 2015

Journal of Membrane Science

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Alkaline direct oxidation glucose fuel cell system using silver/nickel foams as electrodes

Cited by 86 publications

References 37 publications

Improving Linear Range Limitation of Non-Enzymatic Glucose Sensor by OH− Concentration

Improving Linear Range Limitation of Non-Enzymatic Glucose Sensor by OH− Concentration

Electrochemically Active Nickel Foams as Support Materials for Nanoscopic Platinum Electrocatalysts

Physicochemical properties of alkaline doped polybenzimidazole membranes for anion exchange membrane fuel cells

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