Eggshell-membrane-templated synthesis of C, S Doped Mesoporous NiO for methanol oxidation in alkaline solution

Gu, Yingying; Yu, Zhenzhen; Wu, Siqin; Gao, Pengyu; Hu, Yifen; Zhang, Chuan; Xu, Zhen; Li, Jing; An, Yarui

doi:10.1007/s10800-020-01438-9

Cited by 4 publications

(2 citation statements)

References 62 publications

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“…Therefore, the catalytic activity of pure NiO is relatively low. In order to improve the catalytic performance, durability and conductivity of NiO, a lot of modified materials have been studied [28,29] …”

Section: Introductionmentioning

confidence: 99%

“…In order to improve the catalytic performance, durability and conductivity of NiO, a lot of modified materials have been studied. [28,29] Among these NiO based catalysts, Co ions incorporated materials have attracted the attention due to their high catalytic performance and low cost. [30,31] NiO and Co element have a synergistic catalytic effect on methanol.…”

Section: Introductionmentioning

confidence: 99%

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Co Ion‐, NiS2‐ and CNT‐Co‐Doped Nanoflower/Hollow Spherical NiO Nanocomposites for Efficient Electrocatalytic Oxidation of Methanol

Yu,

Zhang,

Long

et al. 2023

ChemistrySelect

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Nowadays, the development and utilization of clean energy are becoming increasingly urgent. Among them, methanol is a new, clean, and efficient energy source. Therefore, more and more studies are focusing on methanol anodic oxidation (MOR). In this work, nanoflower and hollow spherical NiO was synthesized by a simply hydrothermal method and then modified by Co ion, NiS2 and carbon nanotubes (CNTs). The optimal Co/NiO(f)/NiS2−CNT exhibits flower‐like morphology with a larger specific surface area, enlarged electrochemically active surface area and higher conductivity, which improve the electron transfer ability and electrocatalytic activity compared with pure NiO(f), NiO(f)/NiS2, NiO(f)/NiS2−CNT and hollow spherical Co/NiO(hs)/NiS2−CNT. The current density is ultrahigh of 203.46 mA ⋅ cm−2 at 0.8 V, which is 36 times higher than pure NiO(f) and almost 2 times higher than Co/NiO(hs)/NiS2−CNT. Therefore, this work offers a highly efficient and stable NiO based catalyst for methanol oxidation reaction.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Co Ion‐, NiS2‐ and CNT‐Co‐Doped Nanoflower/Hollow Spherical NiO Nanocomposites for Efficient Electrocatalytic Oxidation of Methanol

Yu,

Zhang,

Long

et al. 2023

ChemistrySelect

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Hybrid 2D‐1D nanostructure of NiO composited with PEDOT : PSS and rGO : Bifunctional electrocatalyst towards methanol oxidation and oxygen evolution reaction

Baruah

Biswas

Deb

2022

Intl J of Energy Research

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Summary The electrocatalytic performance and stability of methanol oxidation reaction (MOR) and oxygen evolution reaction (OER) are mainly governed by the interfacial and surface characteristics of catalysts. Herein, a ternary nanocomposite (NiPR) of reduced graphene oxide (rGO), poly (3,4‐ethylenedioxythiophene) (PEDOT): poly (styrene sulfonic acid) (PSS) and nickel oxide (NiO) nanoplate‐nanorod structures has been developed to use as electrooxidation catalyst for methanol and water. Two‐dimensional nanostructures have large number of electroactive sites at the surface and conjugation with one‐dimensional nanostructure provides additional active sites at the interface. The synergetic effect of conducting polymer of PEDOT:PSS, large surface area of rGO and metal oxide enhances electrical conductivity and also facilitates contact between electrolyte ions and the nanocomposite for methanol and water oxidations. The linear rise in current has been observed with increase in methanol within the concentration range from 0.1 to 2 M. The electrocatalytic activity of the ternary electrocatalyst has been analysed by cyclic voltammetry in 0.5 M methanol containing 0.5 M NaOH at various sweep rates (10‐150 mV s−1). An anodic current density of 62.6 mA cm−2 has been obtained with an onset voltage of 0.34 V at a 50 mV s−1 sweep rate for 0.5 M of methanol oxidation. Moreover, NiPR nanocomposite shows a lower overvoltage of 439 mV vs RHE at 20 mA cm−2 with a small Tafel slope of 65 mV dec−1 and long‐term stability (~7 hours) in 0.5 M NaOH for OER.

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Role of metal (Cu/Ni/Fe/Co)-carbon composite in enhancing electro-oxidation of ethylene glycol

Gupta

2023

J Appl Electrochem

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Eggshell-membrane-templated synthesis of C, S Doped Mesoporous NiO for methanol oxidation in alkaline solution

Cited by 4 publications

References 62 publications

Co Ion‐, NiS2‐ and CNT‐Co‐Doped Nanoflower/Hollow Spherical NiO Nanocomposites for Efficient Electrocatalytic Oxidation of Methanol

Co Ion‐, NiS2‐ and CNT‐Co‐Doped Nanoflower/Hollow Spherical NiO Nanocomposites for Efficient Electrocatalytic Oxidation of Methanol

Hybrid 2D‐1D nanostructure of NiO composited with PEDOT : PSS and rGO : Bifunctional electrocatalyst towards methanol oxidation and oxygen evolution reaction

Role of metal (Cu/Ni/Fe/Co)-carbon composite in enhancing electro-oxidation of ethylene glycol

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