One-step solvothermal fabrication of Cu@PANI core–shell nanospheres for hydrogen evolution

Wang, Ting; Wu, Dan; Wang, Youliang; Huang, Tingbo; Histand, Gary; Zeng, Heping

doi:10.1039/c8nr06245e

Cited by 41 publications

(17 citation statements)

References 61 publications

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“…Interestingly, the Cu 2p 3/2 XPS spectra are slightly differences of the catalyst prepared by different methods. The weak satellite peaks in range of 938–947 eV are assigned to Cu 2+ , which may be due to the oxidation of a small amount of copper nanoparticles during drying [11] . In order to further distinguish Cu 0 and Cu + , the Cu LMM Auger spectrum was measured (Figure 2(c), inset).…”

Section: Figurementioning

confidence: 99%

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Highly Dispersed Cu/Graphene Nanocatalyst Guided by MOF Structure: Application to Methanol Synthesis from CO₂ Hydrogenation

San

Gong

et al. 2021

ChemistrySelect

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The dispersion of heterogeneous catalyst is directly related to the performance. In this work, highly dispersed Cu/graphene catalyst was successfully prepared by adopting a “template genetic inheritance” (TGI). The metal‐organic frameworks (MOFs) were introduced between the graphene sheets. Due to the spatial structure of MOFs, the Cu atoms arranged in the expected direction after removing the MOFs skeleton, which lead to a highly orderly dispersion of the Cu particles with uniform sized. Meanwhile, graphene provided a large specific surface area and a carbon source for in‐situ reduction of CuO. Furthermore, the CO2 hydrogenation to methanol performance was analyzed and more than 22 % conversion of CO2 and 84 % selectivity of methanol was achieved. This work provides a simple and novel strategy for the preparation of highly dispersed metal particle supported catalysts, which may be used in catalysis and other fields.

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Section: Figurementioning

confidence: 99%

“…The weak satellite peaks in range of 938-947 eV are assigned to Cu 2 + , which may be due to the oxidation of a small amount of copper nanoparticles during drying. [11] In order to further distinguish Cu 0 and Cu + , the Cu LMM Auger spectrum was measured (Figure 2(c), inset). The dominant peak at 569.9 eV confirms that Cu 0 is loaded onto graphene.…”

mentioning

confidence: 99%

Highly Dispersed Cu/Graphene Nanocatalyst Guided by MOF Structure: Application to Methanol Synthesis from CO₂ Hydrogenation

San

Gong

et al. 2021

ChemistrySelect

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“…Many other nonprecious metal-based electrocatalysts based on molybdenum (Mo), [176] tungsten (W), [177] iron (Fe), [178] and copper (Cu) [179][180][181][182] have also been reported. However, apart from the HER performance, their stability is a critical issue.…”

Section: Ni-or Co-based Catalystsmentioning

confidence: 99%

Electrochemical Catalysts for Green Hydrogen Energy

Kweon

Jeon

Baek

2021

Adv Energy and Sustain Res

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Developing clean and renewable energy resources has become one of the world's most important challenges, given the double burden of energy scarcity and environmental pollution. For sustainable energy conversion and storage, efficient electrocatalysts play a pivotal role in important energy-related reactions, including oxygen reduction, oxygen evolution, and hydrogen evolution. To satisfy practical requirements, the catalysts need to demonstrate high performance, durability, and acceptable cost. These are primary considerations when designing and preparing various new electrocatalysts. Among the research programs being actively conducted around the world, some promising recent results suggest strong potential alternatives to current expensive noble metal-based catalysts. This review summarizes recent technical advances in the preparation of efficient electrocatalysts.

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“…Therefore, PANI/noble metal nanocomposite would be a good way to exploit exceptional behavior of conducting polymers along with attractive characteristics of noble metal nanoparticles . PANI/Cu nanocomposites have been studied, aiming to produce materials with enhanced antibacterial activity, sensitivity, electrochemical activity, and so on, alongside improved electrical conductivity in comparison with pristine PANI . Therefore, these improved properties could be used to make PANI/Cu nanocomposites a good choice to be used as an additive in the production of multifunctional antibacterial and antistatic organic coatings.…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of PANI/Cu/TiO₂ternary nanocomposite on antibacterial and antistatic behaviors in polyurethane coatings

Mirmohseni

Rastgar

Olad

2020

J of Applied Polymer Sci

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Surfaces with antibacterial and antistatic functionalities are one of the new demands of todays' industry. Therefore, a facile method for the preparation of multifunctional polyaniline/copper/TiO2 (PANI/Cu/TiO2) ternary nanocomposite based on in situ polymerization is presented. This nanocomposite was characterized through the different techniques and was utilized for induction of antibacterial and antistatic properties in polyurethane coatings. Measurement of the conductivity of PANI/Cu/TiO2 ternary nanocomposite indicated higher electrical conductivity of this nanocomposite compared to pure PANI. The antibacterial activity of the modified polyurethane coatings was tested against Gram‐positive and Gram‐negative bacteria which led to remarkable reduction in bacterial growth. Besides, it was observed that polyurethane coating with 2 wt % content of ternary nanocomposite has a surface electrical resistance equal 4 × 108 Ω/sq which acquires surface electrical resistance of standard antistatic coatings. The final coatings were also characterized in terms of thermal and mechanical properties to investigate the effect of the ternary nanocomposite on improvement of these properties. © 2020 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48825.

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One-step solvothermal fabrication of Cu@PANI core–shell nanospheres for hydrogen evolution

Abstract: Cu@PANI core–shell nanospheres synthesized by a facile hydrothermal method exhibit strong light absorption, good stability and efficient separation of photo-generated electron–hole pairs.

Cited by 41 publications

References 61 publications

Highly Dispersed Cu/Graphene Nanocatalyst Guided by MOF Structure: Application to Methanol Synthesis from CO₂ Hydrogenation

Highly Dispersed Cu/Graphene Nanocatalyst Guided by MOF Structure: Application to Methanol Synthesis from CO₂ Hydrogenation

Electrochemical Catalysts for Green Hydrogen Energy

Effectiveness of PANI/Cu/TiO₂ternary nanocomposite on antibacterial and antistatic behaviors in polyurethane coatings

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One-step solvothermal fabrication of Cu@PANI core–shell nanospheres for hydrogen evolution

Abstract: Cu@PANI core–shell nanospheres synthesized by a facile hydrothermal method exhibit strong light absorption, good stability and efficient separation of photo-generated electron–hole pairs.

Cited by 41 publications

References 61 publications

Highly Dispersed Cu/Graphene Nanocatalyst Guided by MOF Structure: Application to Methanol Synthesis from CO2 Hydrogenation

Highly Dispersed Cu/Graphene Nanocatalyst Guided by MOF Structure: Application to Methanol Synthesis from CO2 Hydrogenation

Electrochemical Catalysts for Green Hydrogen Energy

Effectiveness of PANI/Cu/TiO2ternary nanocomposite on antibacterial and antistatic behaviors in polyurethane coatings

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Highly Dispersed Cu/Graphene Nanocatalyst Guided by MOF Structure: Application to Methanol Synthesis from CO₂ Hydrogenation

Highly Dispersed Cu/Graphene Nanocatalyst Guided by MOF Structure: Application to Methanol Synthesis from CO₂ Hydrogenation

Effectiveness of PANI/Cu/TiO₂ternary nanocomposite on antibacterial and antistatic behaviors in polyurethane coatings