Boosting hydrogen production in ultrathin birnessite nanosheet arrays-based electrolytic cell by glycerol and urea oxidation reactions

Ruan, Wansheng; Chen, Yuan; Teng, Fei; Liao, Hong; Ibhadon, Alex O.

doi:10.1016/j.mtchem.2022.101086

Cited by 4 publications

(1 citation statement)

References 38 publications

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“…3,4 The anodic reactions are 5,6 Both NH 3 and CO(NH 2 ) 2 are present in large quantities in domestic and industrial wastewater and are associated with water pollution problems. 7,8 Therefore, AOR and UOR are also a possibility for wastewater remediation. 9 Although these reactions, 1 and 2, have low theoretical oxidation potentials, the six electron transfer involved results in sluggish kinetics and a high overpotential.…”

Section: Introductionmentioning

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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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: Introductionmentioning

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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Next-Generation Green Hydrogen: Progress and Perspective from Electricity, Catalyst to Electrolyte in Electrocatalytic Water Splitting

Gao,

Chen,

Wang

et al. 2024

Nano-Micro Lett.

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Green hydrogen from electrolysis of water has attracted widespread attention as a renewable power source. Among several hydrogen production methods, it has become the most promising technology. However, there is no large-scale renewable hydrogen production system currently that can compete with conventional fossil fuel hydrogen production. Renewable energy electrocatalytic water splitting is an ideal production technology with environmental cleanliness protection and good hydrogen purity, which meet the requirements of future development. This review summarizes and introduces the current status of hydrogen production by water splitting from three aspects: electricity, catalyst and electrolyte. In particular, the present situation and the latest progress of the key sources of power, catalytic materials and electrolyzers for electrocatalytic water splitting are introduced. Finally, the problems of hydrogen generation from electrolytic water splitting and directions of next-generation green hydrogen in the future are discussed and outlooked. It is expected that this review will have an important impact on the field of hydrogen production from water. Graphical Abstract

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CuO Co3O4 nanoparticle catalysts rich in oxygen vacancies toward upgrading anodic electro-oxidation of glycerol

Xi,

Zhou,

Liu

et al. 2023

Electrochimica Acta

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Boosting hydrogen production in ultrathin birnessite nanosheet arrays-based electrolytic cell by glycerol and urea oxidation reactions

Cited by 4 publications

References 38 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

Next-Generation Green Hydrogen: Progress and Perspective from Electricity, Catalyst to Electrolyte in Electrocatalytic Water Splitting

CuO Co3O4 nanoparticle catalysts rich in oxygen vacancies toward upgrading anodic electro-oxidation of glycerol

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