Heterogeneous nucleation/growth of silver nanoparticles onto oxygenated mesoporous carbon: Alcohol effect and catalytic property

Ji, Tuo; Chen, Long; Mu, Liwen; Yuan, Ruixia; Wang, Huaiyuan; Knoblauch, Michael; Bao, Forrest Sheng; Zhu, Jiahua

doi:10.1016/j.catcom.2016.01.025

Cited by 9 publications

(4 citation statements)

References 33 publications

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“…Compared with bulk silver, AgNPs have a more negative reduction potential and higher SSA, which make them more effective in catalytic reactions [22]. However, AgNPs with high surface energy are subject to certain limitations in catalysis due to their extreme tendency to aggregate.…”

Section: Introductionmentioning

confidence: 99%

“…Silver nanoparticles (AgNPs) have received extensive attention because of their unique properties and applications in catalysis [ 18 ], antibacterial use [ 19 ], phase separation [ 20 ], surface-enhanced Raman scattering (SERS) [ 21 ], etc. Compared with bulk silver, AgNPs have a more negative reduction potential and higher SSA, which make them more effective in catalytic reactions [ 22 ]. However, AgNPs with high surface energy are subject to certain limitations in catalysis due to their extreme tendency to aggregate.…”

Section: Introductionmentioning

confidence: 99%

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Sugar-based micro/mesoporous hypercross-linked polymers with in situ embedded silver nanoparticles for catalytic reduction

Yin¹,

Chen²,

Lu³

et al. 2017

Beilstein J. Org. Chem.

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Porous hypercross-linked polymers based on perbenzylated monosugars (SugPOP-1–3) have been synthesized by Friedel–Crafts reaction using formaldehyde dimethyl acetal as an external cross-linker. Three perbenzylated monosugars with similar chemical structure were used as monomers in order to tune the porosity. These obtained polymers exhibit microporous and mesoporous features. The highest Brunauer–Emmett–Teller specific surface area for the resulting polymers was found to be 1220 m2 g−1, and the related carbon dioxide storage capacity was found to be 14.4 wt % at 1.0 bar and 273 K. As the prepared porous polymer SugPOP-1 is based on hemiacetal glucose, Ag nanoparticles (AgNPs) can be successfully incorporated into the polymer by an in situ chemical reduction of freshly prepared Tollens’ reagent. The obtained AgNPs/SugPOP-1 composite demonstrates good catalytic activity in the reduction of 4-nitrophenol (4-NP) with an activity factor k a = 51.4 s−1 g−1, which is higher than some reported AgNP-containing composite materials.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sugar-based micro/mesoporous hypercross-linked polymers with in situ embedded silver nanoparticles for catalytic reduction

Yin¹,

Chen²,

Lu³

et al. 2017

Beilstein J. Org. Chem.

View full text Add to dashboard Cite

show abstract

“…However, there are many shortcomings including high ligand sensitivity to water and air, difficulties in separation and reusability, as well as high pressure or temperature. In order to solve these problems and make the whole process more effective, researchers are currently focusing on supporting Ag NPs with carbon, silica, zeolites, or metal–organic frameworks (MOFs) …”

Section: Introductionmentioning

confidence: 99%

Composite System of Ag Nanoparticles and Metal–Organic Frameworks for the Capture and Conversion of Carbon Dioxide under Mild Conditions

Zhu

Liu

et al. 2017

Inorg. Chem.

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The materials Ag@MIL-100(Fe) and Ag@UIO-66(Zr) are obtained for the capture and transformation of CO into alkynyl carboxylic acids, which are environmental friendly, facile to synthesize, and exhibit excellent efficiency and reusability. The influence on the catalytic activity of such Ag@MOF systems by metal-organic frameworks' (MOFs) surface area, thermal, and chemical stability, especially the acid-base characteristics of the pores, are compared and discussed systematically.

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“…It will result from differences in the exposed facets and surface areas of metal nanocatalysts, where the reactions occur. [17][18][19] Self-reduction of metal precursor into metallic nanoparticles on catalyst supports, which can be achieved via creating reactive surface functional groups on the support substrate, can control the particle size and dispersion of the nanoparticles and prevent them migration to form larger aggregates. 18,[20][21][22] In this study, we decrease Ag particle size down to <100 nm to explore how much the catalytic activity can be enhanced by decreasing Ag particle size.…”

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confidence: 99%

Self-Reduction Synthesis of Silver Nanoparticles/Carbon Fiber Paper Air Cathodes for Improving Al-Air Battery Performance

Hong

Wang

2017

J. Electrochem. Soc.

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Integration of highly active electrocatalysts and three-dimensional (3D) conductive frameworks to create a stable and highly efficient air electrode with low overpotential under high discharge current density is a key approach to realize the commercialization of metal air batteries, which involve the oxygen reduction reaction (ORR) at the cathode end. We develop a self-reduction synthesis method for the fabrication of silver-carbon fiber paper (Ag-CFP) as an air electrode of aluminum air (Al-air) batteries. The obtained Ag-CFP is characterized as oxygen electrode by using Cyclic voltammograms (CVs), linear sweep voltammograms (LSVs) and Rotating Disk Electrode (RDE) voltammetrys techniques. The results demonstrated that the Ag-CFP exhibited promising ORR performance. Kouteckye-Levich analysis indicated that a two-electron reaction was favored for the ORR mechanism of the Ag-CFP electrode. A home-built Al-air cell was used to further determine the cathode performance under real operation condition. The resulting primary Al-air battery showed an impressive discharge peak power density of 108.1 mW cm −2 , specific capacity of 2917 mA h g −1 and energy density of 4346 W h kg −1 , outperforming that of commercial Ag powder air electrode.

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Heterogeneous nucleation/growth of silver nanoparticles onto oxygenated mesoporous carbon: Alcohol effect and catalytic property

Cited by 9 publications

References 33 publications

Sugar-based micro/mesoporous hypercross-linked polymers with in situ embedded silver nanoparticles for catalytic reduction

Sugar-based micro/mesoporous hypercross-linked polymers with in situ embedded silver nanoparticles for catalytic reduction

Composite System of Ag Nanoparticles and Metal–Organic Frameworks for the Capture and Conversion of Carbon Dioxide under Mild Conditions

Self-Reduction Synthesis of Silver Nanoparticles/Carbon Fiber Paper Air Cathodes for Improving Al-Air Battery Performance

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