MOF-derived hierarchical hollow spheres composed of carbon-confined Ni nanoparticles for efficient CO<sub>2</sub> methanation

Lin, Xiahui; Wang, Sibo; Tu, Wenguang; Zhang, Hu; Ding, Zhengxin; Hou, Yidong; Xu, Rong; Dai, Wenxin

doi:10.1039/c8cy02329h

Cited by 102 publications

(66 citation statements)

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“…The specific BET surface area and pore volume of NiCo 2 S 4 are calculated to be of 13 m 2 g −1 and 0.04 cm 3 g −1 , respectively. In general, the mesoporous structure is favorable to unveil more catalytically active sites and accelerate mass/charge transport for heterogeneous CO 2 photoreduction reactions …”

Section: Resultsmentioning

confidence: 99%

“…In general, the mesoporous structure is favorable to unveil more catalytically active sites and accelerate mass/ charge transport for heterogeneous CO 2 photoreduction reactions. [46][47] The CO 2 photoreduction performance of the NiCo 2 S 4 catalyst is studied in the tandem catalytic system that works in mixed solvents of H 2 O and acetonitrile under mild conditions (e. g., 30°C, 1 atm CO 2 ) and visible light illumination, employing Ru and TEOA as a photosensitizer and an electron donor, respectively. [24] CO is detected as the sole CO 2 reduction product, coupled with a small amount of H 2 .…”

Section: Resultsmentioning

confidence: 99%

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Spinel‐Type Mixed Metal Sulfide NiCo₂S₄ for Efficient Photocatalytic Reduction of CO₂ with Visible Light

et al. 2019

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Mixed metal oxides with a spinel structure have exhibited great opportunities for photocatalytic CO2 reduction; however, the abilities of their sulfide counterparts in this promising area are much less reported. Herein, we demonstrate the synthesis of a ternary metal sulfide, namely NiCo2S4, and its first application to catalyze the CO2 photoreduction reaction under visible light irradiation. The NiCo2S4 material is prepared through a coupled solvothermal‐ion exchange strategy, and is fully checked by diverse characterizations, including X‐ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X‐ray photoelectron spectroscopy (XPS), energy‐dispersive X‐ray spectroscopy (EDX) and N2 sorption measurements. Under visible light irradiation in a classic tandem photochemical system, this non‐noble‐metal NiCo2S4 catalyst affords a considerable activity and high stability for CO2 deoxygenative reduction, delivering a high CO‐liberating rate of 43.5 μmol mg−1 h−1. The in‐situ PL and transient photocurrent measurements reveal that the spinel catalyst can hamper recombination and accelerate transfer of light‐excited charge carriers, and thus boosting the CO2 reduction reaction. At last, a possible mechanism of the NiCo2S4‐catalyzed CO2 photoreduction reaction is proposed.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Spinel‐Type Mixed Metal Sulfide NiCo₂S₄ for Efficient Photocatalytic Reduction of CO₂ with Visible Light

et al. 2019

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“…The resultant green colour solution obtained is tightly kept into a Teflon autoclave and heated at a temperature of 150 °C for 1 day. The resulting Ni‐MOFs obtained was filtered, washed with ethanol for several times and dried at 80 °C …”

Section: Introductionmentioning

confidence: 99%

“…In typical synthesis, dried Ni‐MOFs powders were heated to 500 °C under a N 2 atmosphere for 2 h and then eventually cooled to obtain black Ni@C sample. The synthesised catalyst exhibit the characteristic properties like high activity and stability for CO 2 methanation reaction at low temperature …”

Section: Introductionmentioning

confidence: 99%

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The Development of Mesoporous Ni‐Based Catalysts and Evaluation of Their Catalytic and Photocatalytic Applications

Kour¹,

Mishra

Sinha

et al. 2020

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Porous Ni‐based catalysts have attracted extensive attention for a wide range of applications in energy production and environmental remediation due to controllable morphology, high dispersion. These properties are mainly governed by a number of parameters such as compositions, synthesis methods, their structural morphology, and surface area. Various efforts have made to develop unsupported template‐assisted catalysts with specific nanostructures and surface properties, a new approach in supramolecular chemistry. This review reports a detailed overview of the development of mesoporous nickel‐based catalysts for energy and environmental applications. This review also looks at recent advancements, synthesis routes for porous nickel‐based catalysts, and comparative study with the reported Ni‐based catalysts. This review addresses numerous characteristic reactions and processes in the utilization of organic wastes, highlighting the significance of developing porous, proficient, and stable Ni‐based catalysts.

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Direct Conversion of Rice Husks to Nanostructured SiC/C for CO₂ Photoreduction

et al. 2020

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A one‐step and template‐free synthesis of a SiC nanowires/C (SiC‐NW/C) composite from rice husks (RHs) is realized via a molten‐salt‐assisted electrochemical method. The process integrates simultaneously carbonization, electrodeoxidation, nanostructuring, and self‐purification for converting RHs to a SiC‐NW/C hybrid that is assembled from SiC NWs embedded in porous N‐doped graphitic carbon with strong coupling. The SiC‐NW/C nanostructure enables efficient CO2 adsorption and fast separation and transfer of charge carriers. Benefiting from the structural and compositional merits, the SiC‐NW/C composite shows superior activity for photoreduction of CO2 to CO, in the absence of any additional cocatalysts or sacrificial agents. The process proposed herein might help to bridge a closed‐loop carbon cycle in the whole production–utilization of biomass.

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MOF-derived hierarchical hollow spheres composed of carbon-confined Ni nanoparticles for efficient CO₂ methanation

Abstract: Hierarchical Ni@C hollow spheres composed of dispersed Ni nanoparticles confined in carbon shells were readily synthesized for efficient CO2 methanation.

Cited by 102 publications

References 56 publications

Spinel‐Type Mixed Metal Sulfide NiCo₂S₄ for Efficient Photocatalytic Reduction of CO₂ with Visible Light

Spinel‐Type Mixed Metal Sulfide NiCo₂S₄ for Efficient Photocatalytic Reduction of CO₂ with Visible Light

The Development of Mesoporous Ni‐Based Catalysts and Evaluation of Their Catalytic and Photocatalytic Applications

Direct Conversion of Rice Husks to Nanostructured SiC/C for CO₂ Photoreduction

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MOF-derived hierarchical hollow spheres composed of carbon-confined Ni nanoparticles for efficient CO2 methanation

Abstract: Hierarchical Ni@C hollow spheres composed of dispersed Ni nanoparticles confined in carbon shells were readily synthesized for efficient CO2 methanation.

Cited by 102 publications

References 56 publications

Spinel‐Type Mixed Metal Sulfide NiCo2S4 for Efficient Photocatalytic Reduction of CO2 with Visible Light

Spinel‐Type Mixed Metal Sulfide NiCo2S4 for Efficient Photocatalytic Reduction of CO2 with Visible Light

The Development of Mesoporous Ni‐Based Catalysts and Evaluation of Their Catalytic and Photocatalytic Applications

Direct Conversion of Rice Husks to Nanostructured SiC/C for CO2 Photoreduction

Contact Info

Product

Resources

About

MOF-derived hierarchical hollow spheres composed of carbon-confined Ni nanoparticles for efficient CO₂ methanation

Spinel‐Type Mixed Metal Sulfide NiCo₂S₄ for Efficient Photocatalytic Reduction of CO₂ with Visible Light

Spinel‐Type Mixed Metal Sulfide NiCo₂S₄ for Efficient Photocatalytic Reduction of CO₂ with Visible Light

Direct Conversion of Rice Husks to Nanostructured SiC/C for CO₂ Photoreduction