Trifunctional electrocatalysts based on feather-like NiCoP 3D architecture for hydrogen evolution, oxygen evolution, and urea oxidation reactions

Yang, Li‐Ming; Ren, Feng; Shi, Jinzhuo; Yang, Tao; Guo, Chunyu; Chen, Yafeng; Wang, Enhui; Du, Zhentao; Chou, Kuo‐Chih; Hou, Xinmei

doi:10.1016/j.ceramint.2022.09.035

Cited by 31 publications

(3 citation statements)

References 61 publications

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“…The experimental findings and DFT calculations jointly indicate that NiCoP reveals a heightened Density of States (DOS) at the Fermi level, thereby promoting enhanced charge transfer. This effect is observed specifically at 203 mV over-potentials of 44, achieving a current density of 10 mA cm −2 in a 1 M KOH for both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) [46]. Using a DES for bimetallic sulfide fabrication offers a promising solution to minimize dependence on toxic solvents.…”

Section: Introductionmentioning

confidence: 99%

Carbon Nanotube Composites with Bimetallic Transition Metal Selenides as Efficient Electrocatalysts for Oxygen Evolution Reaction

Riaz,

Anjum,

Ali

et al. 2024

Sustainability

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Hydrogen fuel is a clean and versatile energy carrier that can be used for various applications, including transportation, power generation, and industrial processes. Electrocatalytic water splitting could be the most beneficial and facile approach for producing hydrogen. In this work, transition metal selenide composites with carbon nanotubes (CNTs) have been investigated for electrocatalytic water splitting. The synthesis process involved the facile one-step hydrothermal growth of transition metal nanoparticles over the CNTs and acted as an efficient electrode toward electrochemical water splitting. Scanning electron microscopy and XRD patterns reveal that nanoparticles were firmly anchored on the CNTs, resulting in the formation of composites. The electrochemical measurements reveal that CNT composite with nickel–cobalt selenides (NiCo-Se/CNTs@NF) display remarkable oxygen evolution reaction (OER) activity in basic media, which is an important part of hydrogen production. It demonstrates the lowest overpotential (η10mAcm−2) of 0.560 V vs. RHE, a reduced Tafel slope of 163 mV/dec, and lower charge transfer impedance for the OER process. The multi-metallic selenide composite with CNTs demonstrating unique nanostructure and synergistic effects offers a promising platform for enhancing electrocatalytic OER performance and opens up new avenues for efficient energy conversion and storage applications.

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Section: Introductionmentioning

confidence: 99%

Carbon Nanotube Composites with Bimetallic Transition Metal Selenides as Efficient Electrocatalysts for Oxygen Evolution Reaction

Riaz,

Anjum,

Ali

et al. 2024

Sustainability

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“…31 According to a theoretical simulation, the long-lasting electrocatalytic activity is caused by the downward shift of the metal-d band. Yang 32 found that in a spring-like NiCoP/ NF, OER and UOR are promoted by the synergistic effect of Ni and Co bimetallic atoms. Cao et al 33 reported that doping a Ni−P−O film with Co intervenes in the amount of Ni, Co, and O and thus affected the electron structure, which lowered the conversion potential for Ni 2+ and Ni 3+ and the offset potential for starting UOR.…”

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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“…In order to realize the sustainable development of industrialization, in recent years, many non-noble metal-based electrocatalysts with high efficiency, environmental protection, low-budget and abundant reserves have been applied to electrocatalytic water cracking, one of which involves improving the OER activity. Monumental efforts have been made to design and prepare diversiform transition metals and their derivatives, such as transition metal-based oxides, 7 carbides, 8 nitrides, 9 phosphides, 10 sulfides, 11 selenides, 12 borides 13 and other electrocatalysts 14 for the OER.…”

Section: Introductionmentioning

confidence: 99%

An in situ formed ZIF-67 derived NiFeCo-P nano-array for accelerating the electrocatalytic oxygen evolution reaction

Guo,

Li,

Wang

et al. 2024

Energy Adv.

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Trifunctional electrocatalysts based on feather-like NiCoP 3D architecture for hydrogen evolution, oxygen evolution, and urea oxidation reactions

Cited by 31 publications

References 61 publications

Carbon Nanotube Composites with Bimetallic Transition Metal Selenides as Efficient Electrocatalysts for Oxygen Evolution Reaction

Carbon Nanotube Composites with Bimetallic Transition Metal Selenides as Efficient Electrocatalysts for Oxygen Evolution Reaction

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

An in situ formed ZIF-67 derived NiFeCo-P nano-array for accelerating the electrocatalytic oxygen evolution reaction

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