Trash to treasure: A novel chemical route to synthesis of NiO/C for hydrogen production

Lu, Shun; Hummel, Matthew; Gu, Zhengrong; Gu, Yan; Cen, Zhisheng; Wei, Lin; Zhou, Yue; Zhang, Caizhi; Yang, Chi

doi:10.1016/j.ijhydene.2019.04.191

Cited by 55 publications

(41 citation statements)

References 44 publications

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“…S7) was stable after 60h as confirmed by XRD. These results confirm that the Ni/Gd2O3/NiO catalyst possesses superior stability in the long term HER process compared to the previously reported NiO system (Table S1) [3,[48][49][50][51][52][53]81].…”

Section: Resultssupporting

confidence: 88%

Coaxial nanofibers of nickel/gadolinium oxide/nickel oxide as highly effective electrocatalysts for hydrogen evolution reaction

El-Maghrabi

Nada

Bekheet

et al. 2021

Journal of Colloid and Interface Science

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Cost-effective, active and stable electrocatalysts are pivotal to hydrogen production via electrocatalytic water splitting. Here we report on the preparation of novel nanofiber (NF) Ni/Gd2O3/NiO heterostructures by an electrospinning technique. The fabricated materials show high electrocatalytic performance for hydrogen evolution reaction (HER) with activities of onset potential at 89 mV, which is almost identical to that of platinum. The chemical and electronic properties of materials are successfully optimized in Ni/Gd2O3/NiO coaxial heterostructures; the NiO NF with Gd 3+ enhances remarkably its electrical conductivity and promotes HER reaction kinetics. It offers the distinct advantages of long-term durability and readiness for the integration into producing hydrogen via HER, affording better performance than benchmark Pt catalysts. The 2 successful fabrication of these metal oxides nanofibers and nanostructures may pave a new path for rational synthesis of efficient HER catalysts.

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Section: Resultssupporting

confidence: 88%

Coaxial nanofibers of nickel/gadolinium oxide/nickel oxide as highly effective electrocatalysts for hydrogen evolution reaction

El-Maghrabi

Nada

Bekheet

et al. 2021

Journal of Colloid and Interface Science

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“…4e) by CV technique in a narrow potential range (0.06-0.16 V, nonfaradaic zone) with a series of scan rates. (41,(44)(45)(46) After calculation, the EASA of NiO/c-ESM electrode is ~70.1 cm 2 higher than NiO electrode (50.3 cm 2 ) and c-ESM electrode (66.8 cm 2 ), suggesting that the effective active sites of NiO/c-ESM for urea oxidation is higher than that of c-ESM. (47) Electrochemical impedance spectroscopy (EIS) can be used to analysis the electron transfer process and impedance changes on the surface of the working electrode.…”

Section: Elementmentioning

confidence: 97%

Nickel Oxide Immobilized on the Carbonized Eggshell Membrane for Electrochemical Detection of Urea

Hummel

et al. 2020

J. Electrochem. Soc.

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Urea oxidation reaction (UOR) has been known as a viable method for renal/liver disease diagnostic detection. Here, we reported a three-dimensional (3D) nickel oxide nanoparticles dressed carbonized eggshell membrane (3D NiO/c-ESM) as a modified electrode toward urea detection. Several common physical measurements were employed to confirm its structural and morphological information. NiO/c-ESM modified electrode exhibits an outstanding performance for urea determination with a linear range from 0.05 to 2.5 mM, and limit detection of ∼20 µM (3σ). This work offered a green approach for introducing 3D nanostructure through employing biowaste ESMs as templates, providing a typical example for producing new value-added nanomaterials with urea detection.

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“…Moreover, the electrochemical active surface area of the modi-ed electrode also reveals a transferred electron on the surface of the electrode and determines the active sites for nitrite oxidation. 12,34 As presented in Fig. 4d and S10, † there is a good linear relationship between the oxidation peak current (I pa ) and the square root of the scan rate (n 1/2 ).…”

Section: Nitrite (Nomentioning

confidence: 76%

Two-dimensional conductive phthalocyanine-based metal–organic frameworks for electrochemical nitrite sensing

Jia

Hummel

et al. 2021

RSC Adv.

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Trash to treasure: A novel chemical route to synthesis of NiO/C for hydrogen production

Cited by 55 publications

References 44 publications

Coaxial nanofibers of nickel/gadolinium oxide/nickel oxide as highly effective electrocatalysts for hydrogen evolution reaction

Coaxial nanofibers of nickel/gadolinium oxide/nickel oxide as highly effective electrocatalysts for hydrogen evolution reaction

Nickel Oxide Immobilized on the Carbonized Eggshell Membrane for Electrochemical Detection of Urea

Two-dimensional conductive phthalocyanine-based metal–organic frameworks for electrochemical nitrite sensing

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