Novel and high electrocatalytic activity aerogel Pd-TM (TM=Co, Ni, Fe)

Martínez-Lázaro, A.; Rodriguez-Barajas, M.H.; Rey‐Raap, Natalia; Espinosa-Lagunes, F.I.; Álvarez‐Contreras, Lorena; Ledesma‐García, J.; Arenillas, A.; Arriaga, L.G.

doi:10.1016/j.mtnano.2023.100308

Cited by 9 publications

(6 citation statements)

References 54 publications

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“…These processes were performed simultaneously in two microfluidic devices to collect produced H 2 in a chamber anchored to the two microfluidic systems. NiCo aerogel was investigated as the anode in the cells, while Pt/C was chosen as the cathode in both microfluidic systems. − …”

Section: Resultsmentioning

confidence: 99%

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Nickel–Cobalt Aerogel as a Highly Efficient Electrocatalyst for Dual Microfluidic Applications: Hydrogen Generation and Power Energy from Nitrogenous Compounds

Martínez-Lázaro,

Rodríguez-Buenrostro,

Rodríguez-Barajas

et al. 2024

Energy Fuels

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This research work presents a novel unsupported NiCo aerogel with high electrocatalytic activity, which was synthesized by an ultrafast method combining microwave heating and lyophilization. The novel aerogel was used as an electrocatalyst for the oxidation reactions of two different nitrogen compounds: urea and ammonium, with the aim of reducing the pollutant content in water and generating clean energy from the reduced hydrogen of oxidizing species. The NiCo aerogel was incorporated/evaluated in a microfluidic device in two ways: as an ammonium fuel cell and an alkaline urea electrolyzer, producing clean hydrogen in both systems. The unique physicochemical properties, particle size smaller than 0.1 nm, surface area of 52 m 2 g −1 , and the presence of NiCo metal alloys with the addition of species Ni−O, Ni−OH, and a higher percentage of Ni 2+ enable the effective oxidation of species in the alkaline medium. Hydrogen production and power densities of up 3 × 10 −4 μg s −1 and 0.74 mW cm −2 , respectively, are observed. This work demonstrates for the first time an aerogel structure of non-noble metal (NiCo) used in two different microfluidic devices that oxidize nitrogenous compounds such as urea and ammonium and produce clean fuel as hydrogen.

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Section: Resultsmentioning

confidence: 99%

“…NiCo aerogels were prepared from two solutions: a precursor solution and a reduction solution. The synthesis procedure described elsewhere , was used. The precursor solution was prepared in equal proportions of Ni and Co precursor salts, the precursors were dispersed in a concentration of 2 mg mL –1 .…”

Section: Methodsmentioning

confidence: 99%

Nickel–Cobalt Aerogel as a Highly Efficient Electrocatalyst for Dual Microfluidic Applications: Hydrogen Generation and Power Energy from Nitrogenous Compounds

Martínez-Lázaro,

Rodríguez-Buenrostro,

Rodríguez-Barajas

et al. 2024

Energy Fuels

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“…It can be observed that the progress in the development of μFCs is focused on the use of materials with a good efficiency− cost ratio without neglecting the sustainability of the energy obtained. Likewise, the trend is toward the use and development of hybrid catalysts to achieve the ratio targeted by different research groups, such as the group led by Arriaga, in which μFCs have been developed with different materials such as platinum−silver alloys, 28 nickel/iron nanoparticles, 108 or palladium/cobalt aerogels, 109 showing an improvement in electrocatalytic activity for application to different fuels.…”

Section: ■ Summary and Perspectivesmentioning

confidence: 99%

Abiotic, Hybrid, and Biological Electrocatalytic Materials Applied in Microfluidic Fuel Cells: A Comprehensive Review

Estrada-Osorio,

Escalona-Villalpando,

Gurrola

et al. 2023

ACS Meas. Sci. Au

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This article provides an overview of the work reported in the past decade in the field of microfluidic fuel cells.To develop appropriate research, the most commonly used electrocatalytic materials were considered and a new classification was proposed based on their nature: abiotic, hybrid, or biological. This classification allowed the authors to discern the information collected. In this sense, the types of electrocatalysts used for the oxidation of the most common fuels in different environments, such as glucose, ethanol, methanol, glycerol, and lactate, were presented. There are several phenomena presented in this article. This information gives an overview of where research is heading in the field of materials for electrocatalysis, regardless of the fuel used in the microfluidic fuel cell: the synthesis of abiotic and biological materials to obtain hybrid materials that allow the use of the best properties of each material.

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“…Aerogels are mainly used as thermal protection materials for spacecraft, materials for preventing the impact and vibration of spacecraft during high-speed flight, and structural materials for manufacturing light aerospace spacecraft. [1][2][3][4] Although silica aerogels have excellent thermal insulation properties, their application is severely restricted by their poor mechanical properties and cumbersome drying process. [5][6][7] Therefore, polymer aerogels have garnered increasing attention because they have better mechanical properties, processability, and density than inorganic aerogels.…”

Section: Introductionmentioning

confidence: 99%

Lightweight polybenzoxazole aerogels with high compressive strength, ultralow dielectric constants, and excellent thermal stability

Zhang,

Liu,

Yang

et al. 2024

Polym. Chem.

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Novel and high electrocatalytic activity aerogel Pd-TM (TM=Co, Ni, Fe)

Cited by 9 publications

References 54 publications

Nickel–Cobalt Aerogel as a Highly Efficient Electrocatalyst for Dual Microfluidic Applications: Hydrogen Generation and Power Energy from Nitrogenous Compounds

Nickel–Cobalt Aerogel as a Highly Efficient Electrocatalyst for Dual Microfluidic Applications: Hydrogen Generation and Power Energy from Nitrogenous Compounds

Abiotic, Hybrid, and Biological Electrocatalytic Materials Applied in Microfluidic Fuel Cells: A Comprehensive Review

Lightweight polybenzoxazole aerogels with high compressive strength, ultralow dielectric constants, and excellent thermal stability

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