Nanostructured Pd/Sb2O3: A new and promising fuel cell electrocatalyst and non-enzymatic amperometric sensor for ethanol

Gonçalves, Rosana Alves; Baldan, Maurício Ribeiro; Ciapina, Eduardo G.; Berengue, Olívia M.

doi:10.1016/j.apsusc.2019.06.116

Cited by 20 publications

(8 citation statements)

References 56 publications

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“…At this state, CuBiPd (0.0508 mA) continued to have the highest peak current followed by CuPd (0.05 mA) for up to 100 s where BiPd coincides with Pd. These results indicate that the trimetallic compound shows a higher current response compared to bimetallic and monometallic Pd, indicating that the addition of Cu and Bi adatoms on the Pd surface enhances electrocatalytic activity and stability towards EOR similar to the literature [76] corroborating with CV results (Figure 4(c)).…”

Section: Characterization Of Palladium‐based Thin Film Electrocatalystssupporting

confidence: 88%

“…The high oxides may suggest strong oxygen binding energy on the Pd surface which may shift the Pd d‐band centre and subsequently further oxidize the adsorbed EOR intermediates species, and relatively enhance electrocatalytic activity. However, the details on adsorbed species on the catalyst surface must be carefully interpreted by considering in situ CV‐Fourier transform infrared spectroscopy (FTIR) as recommended by literature [52, 60, 72, 74–76]. The tolerance and durability of CuBiPd towards EOR intermediate species were further scrutinized using CA and CV using several cycles, and the stability is maintained.…”

Section: Characterization Of Palladium‐based Thin Film Electrocatalystsmentioning

confidence: 99%

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Electroformation of Pd‐modified Thin Film Electrocatalysts Using E‐ALD Technique

et al. 2021

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Electrochemical atomic layer deposition was used to form bimetallic (BiPd, CuPd) and trimetallic (CuBiPd) thin films via surface‐confined reactions. Pd thin films were characterized by cyclic voltammetry, scanning electron microscopy (SEM) and the alloy formation with preferred Au/Pd(111) orientation was confirmed by XRD. AFM revealed uniform grain distribution, with 3D islands growing on CuBiPd. EDX verified the presence of all deposited elements. Compared to other prepared catalysts, CuBiPd catalyst showed higher activity and stability towards the ethanol oxidation reaction (EOR), as confirmed by the peak current and onset potential trends, respectively: CuBiPd (1.35 mA, −0.450 V)>CuPd (0.6016 mA, −0.442 V)>BiPd (0.275 mA, −0.384 V)>Pd (0.186 mA, −0.350 V). The EOR current on CuBiPd improved by 2.5 folds relative to Pd. The results show that CuBiPd electrocatalyst is a promising material for EOR with enhanced catalytic properties for direct ethanol fuel cell

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Section: Characterization Of Palladium‐based Thin Film Electrocatalystssupporting

confidence: 88%

Section: Characterization Of Palladium‐based Thin Film Electrocatalystsmentioning

confidence: 99%

Electroformation of Pd‐modified Thin Film Electrocatalysts Using E‐ALD Technique

et al. 2021

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“…For simulating the usual human breath, the operating temperature of the simulator is set to about 34 °C by utilizing warm water flow around the ethanol solution container . The working electrode (anode) is connected to the breath simulator, which uses nitrogen gas (N 2 ) as the carrier gas in order to eliminate. − In most investigations, 145 mL/min has been chosen as a constant-flow rate of the ethanol feed. The ethanol feed is introduced to the anode side for a specific time (often 10 s), and to handle this timing, an electronic timer is exposed to the ethanol feed.…”

Section: Fundamental Of Fuel-cell-type Gas Sensorsmentioning

confidence: 99%

Comprehensive Review of Fuel-Cell-Type Sensors for Gas Detection

Mehrpooya

Ganjali

Mousavi

et al. 2023

Ind. Eng. Chem. Res.

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Gas detection based on the electrochemical cells has recently been paid attention. Because of the many applications of fuel cell sensors, several investigations have been done on fuel-cell-type sensors for gas detection. In this study, the research works are categorized based on the type of the most used fuel cell sensors, such as CO, H2, methanol, and ethanol. Moreover, the manufacturing, applied technologies and the operating conditions of them, including the limit of detection, detection ranges, and response time of the fuel cells, are reviewed and discussed. Finally, according to the previous investigations that have been carried out, the gaps are introduced and evaluated to prepare beneficial suggestions for future investigations. According to the literature, humidity management using Pt–Cu/C is one of the most used manufacturing methods for improving a fuel cell sensor’s global and specific sensitivity. In addition, Nafion MEA with JM20 exhibits better detection performance of methanol sensors. Moreover, using nanotubes of multiwall carbon and nanoparticles of Pt–Pd in manufacturing shows proven improvements regarding the limit of detection and detection range for ethanol fuel cell sensors. PEFC-type sensor cells can improve the detection of CO to 0.2 ppm. Furthermore, the required targets for hydrogen fuel cell sensors in terms of safety and performance announced by the U.S. Department of Energy, for example, the response time of 1 s, are not reported in the open literature.

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“…The field of nanomaterials has recently witnessed significant attention, owing to the development of new technologies that offer faster, more sensitive, and highly efficient sensors, optoelectronics, and energy storage devices. The properties of nanostructures, including size, crystalline phase, and morphology, are influenced by various factors such as reagents employed, synthesis methodology, and reaction conditions. − By carefully adjusting the synthesis parameters such as temperature, pH, reagent concentration, synthesis time, and cleaning, it becomes feasible to tailor nanostructures with specific properties for targeted applications. ,− …”

Section: Introductionmentioning

confidence: 99%

Cotton-Like Three-Dimensional Sb₄O₅Cl₂ Structures: Synthesis and Ammonium Hydroxide Sensing

Toledo,

Gonçalves,

Baldan

et al. 2023

ACS Omega

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Nanostructured materials have emerged as valuable tools for the advancement of novel electrocatalysts. Among them, three-dimensional metal oxides have gained significant attention due to their excellent conductivity, cost-effectiveness, and unique design. This study focuses on the synthesis of cotton-like three-dimensional antimony oxychloride (Sb 4 O 5 Cl 2 ) structures through a straightforward precipitation method. The nanostructures exhibit immense potential for sensing applications. Electrochemical characterization reveals that the Sb 4 O 5 Cl 2 heterostructure demonstrates a remarkable double-layer capacitance of 662 F/cm 2 , accompanied by excellent cyclic stability. The sensor's performance was tested for the detection of ammonium hydroxide (HA) in NaCl solution, yielding sensitivities ranging from 0.95 to 0.140 mA mM −1 cm −2 and a detection limit of 4.54 μM within a wide detection range of 0.3−250 mM. The sensor device possesses a distinctive cotton-like structure and is synthesized through a simple and cost-effective route.

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Nanostructured Pd/Sb2O3: A new and promising fuel cell electrocatalyst and non-enzymatic amperometric sensor for ethanol

Cited by 20 publications

References 56 publications

Electroformation of Pd‐modified Thin Film Electrocatalysts Using E‐ALD Technique

Electroformation of Pd‐modified Thin Film Electrocatalysts Using E‐ALD Technique

Comprehensive Review of Fuel-Cell-Type Sensors for Gas Detection

Cotton-Like Three-Dimensional Sb₄O₅Cl₂ Structures: Synthesis and Ammonium Hydroxide Sensing

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Nanostructured Pd/Sb2O3: A new and promising fuel cell electrocatalyst and non-enzymatic amperometric sensor for ethanol

Cited by 20 publications

References 56 publications

Electroformation of Pd‐modified Thin Film Electrocatalysts Using E‐ALD Technique

Electroformation of Pd‐modified Thin Film Electrocatalysts Using E‐ALD Technique

Comprehensive Review of Fuel-Cell-Type Sensors for Gas Detection

Cotton-Like Three-Dimensional Sb4O5Cl2 Structures: Synthesis and Ammonium Hydroxide Sensing

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Product

Resources

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Cotton-Like Three-Dimensional Sb₄O₅Cl₂ Structures: Synthesis and Ammonium Hydroxide Sensing