Nanoscale Pd supported on 3D porous carbon for enhanced selective oxidation of benzyl alcohol

Niu, Shuo; Guo, Wenyao; Lin, Tsung‐Wu; Wang, Yu; Wu, Yifei; Ji, Xiaobo; Shao, Lei

doi:10.1039/c7ra03665e

Cited by 28 publications

(21 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…046-1043) is observed in the pattern of CdS–TiO 2 /Pd ternary nanocatalyst, which corresponds to metallic Pd (Figure d). This confirms the formation of CdS–TiO 2 /Pd ternary nanocatalyst . The average crystallite size calculated using the Scherrer formula is found to be 30.12 nm for (b), 27.81 nm for (c), and 27.69 nm for (d).…”

Section: Resultssupporting

confidence: 71%

Preparation of CdS–TiO₂-Based Palladium Heterogeneous Nanocatalyst by Solvothermal Route and Its Catalytic Activity for Reduction of Nitroaromatic Compounds

2019

View full text Add to dashboard Cite

In this study, bare CdS nanoparticles (NPs) were prepared by solvothermal method using CdCl2(3-methylbenzaldehyde thiosemicarbazone)2 as a single-source molecular precursor in the presence of ethylene glycol. Further, these CdS NPs were used for the preparation of binary (CdS–TiO2) and ternary (CdS–TiO2/Pd) heterogeneous nanocatalysts. Characterization of the as-prepared nanocatalysts has been carried out using different techniques such as powder X-ray diffraction (XRD), Fourier transform infrared spectroscopy, field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), UV–visible diffuse reflectance spectroscopy, and photoluminescence studies. The peak observed at 2θ = 39.5° in XRD confirms the successful doping of noble metal (Pd) on the surface of CdS–TiO2 nanocatalyst, which is well supported by Raman analysis. From FESEM and TEM analyses, mixed morphology has been observed and elemental composition was confirmed by energy-dispersive X-ray spectroscopy elemental mapping. Furthermore, the as-prepared bare CdS NPs, binary CdS–TiO2, and ternary CdS–TiO2/Pd heterogeneous nanocatalysts were used for the reductive transformation of various nitroaromatic compounds to their corresponding aromatic amines at room temperature. It has been observed that among all of the catalysts, ternary CdS–TiO2/Pd heterogeneous nanocatalyst has excellent catalytic property to reduce all nitroaromatic compounds in very short time span.

show abstract

Section: Resultssupporting

confidence: 71%

Preparation of CdS–TiO₂-Based Palladium Heterogeneous Nanocatalyst by Solvothermal Route and Its Catalytic Activity for Reduction of Nitroaromatic Compounds

2019

View full text Add to dashboard Cite

show abstract

“…XPS peaks of Pd 3d 3/2 and Pd 3d 5/2 , centered at 340.2 and 335.1 eV (Fig. 1e ), suggest that Pd 0 is the dominant component with minor Pd 2+ coexisting on the Pd–CM surface 41 , possibly due to surface oxidation. Similarly, the deconvoluted peaks of Pt 4f 5/2 and Pt 4f 7/2 at binding energies of 74.8 and 71.5 eV (Fig.…”

Section: Resultsmentioning

confidence: 99%

Janus electrocatalytic flow-through membrane enables highly selective singlet oxygen production

et al. 2020

View full text Add to dashboard Cite

The importance of singlet oxygen (1O2) in the environmental and biomedical fields has motivated research for effective 1O2 production. Electrocatalytic processes hold great potential for highly-automated and scalable 1O2 synthesis, but they are energy- and chemical-intensive. Herein, we present a Janus electrocatalytic membrane realizing ultra-efficient 1O2 production (6.9 mmol per m3 of permeate) and very low energy consumption (13.3 Wh per m3 of permeate) via a fast, flow-through electro-filtration process without the addition of chemical precursors. We confirm that a superoxide-mediated chain reaction, initiated by electrocatalytic oxygen reduction on the cathodic membrane side and subsequently terminated by H2O2 oxidation on the anodic membrane side, is crucial for 1O2 generation. We further demonstrate that the high 1O2 production efficiency is mainly attributable to the enhanced mass and charge transfer imparted by nano- and micro-confinement effects within the porous membrane structure. Our findings highlight a new electro-filtration strategy and an innovative reactive membrane design for synthesizing 1O2 for a broad range of potential applications including environmental remediation.

show abstract

“…00-041-1049). The additional peak observed at 2θ = 39.4° for TNC-I and 2θ = 39.8° for TNC-II confirmed the successful loading of Pd on the surface of CdS@TiO 2 nanocomposites, 31,32 and it was observed that the crystallinity is retained after the loading of Pd as shown in Figure 1. The average particle size was calculated using the Scherrer formula, 33 which was found to be 10.26 nm ( TNC-I ), 7.31 nm ( TNC-II ), 30.5 nm ( BNC-I ), and 13.3 nm ( BNC-II ) for as-prepared nanocomposites.…”

Section: Resultsmentioning

confidence: 57%

One-Pot Synthesis of Pd-Based Ternary Pd@CdS@TiO₂ Nanoclusters via a Solvothermal Route and Their Catalytic Reduction Efficiency toward Toxic Hexavalent Chromium

2018

View full text Add to dashboard Cite

In this work, we report the synthesis of Pd-based ternary Pd@CdS@TiO 2 nanocomposites using molecular precursors. This method is facile, less time-consuming, and cost-effective. This catalyst is prepared within 2 h by a solvothermal route using molecular precursors. Information about the phase, morphologies, elemental mapping, and composition of the nanocomposites was obtained using various characterization techniques. The catalytic activity of the as-prepared Pd-based ternary Pd@CdS@TiO 2 nanocomposites exhibits effective reduction efficiency for the conversion of toxic Cr(VI) to Cr(III) using formic acid as a reducing agent within 5–7 min. To the best of our knowledge, this is the first report on Pd-based ternary Pd@CdS@TiO 2 nanocomposites prepared by a solvothermal route and used as catalysts toward the reduction of hexavalent chromium at room temperature.

show abstract

Nanoscale Pd supported on 3D porous carbon for enhanced selective oxidation of benzyl alcohol

Abstract: A 3D porous carbon framework (PCF) supporting palladium nanoparticles (Pd/PCF) was synthesized by a simple and economical method and used for catalyzing benzyl alcohol oxidation.

Cited by 28 publications

References 30 publications

Preparation of CdS–TiO₂-Based Palladium Heterogeneous Nanocatalyst by Solvothermal Route and Its Catalytic Activity for Reduction of Nitroaromatic Compounds

Preparation of CdS–TiO₂-Based Palladium Heterogeneous Nanocatalyst by Solvothermal Route and Its Catalytic Activity for Reduction of Nitroaromatic Compounds

Janus electrocatalytic flow-through membrane enables highly selective singlet oxygen production

One-Pot Synthesis of Pd-Based Ternary Pd@CdS@TiO₂ Nanoclusters via a Solvothermal Route and Their Catalytic Reduction Efficiency toward Toxic Hexavalent Chromium

Contact Info

Product

Resources

About

Nanoscale Pd supported on 3D porous carbon for enhanced selective oxidation of benzyl alcohol

Abstract: A 3D porous carbon framework (PCF) supporting palladium nanoparticles (Pd/PCF) was synthesized by a simple and economical method and used for catalyzing benzyl alcohol oxidation.

Cited by 28 publications

References 30 publications

Preparation of CdS–TiO2-Based Palladium Heterogeneous Nanocatalyst by Solvothermal Route and Its Catalytic Activity for Reduction of Nitroaromatic Compounds

Preparation of CdS–TiO2-Based Palladium Heterogeneous Nanocatalyst by Solvothermal Route and Its Catalytic Activity for Reduction of Nitroaromatic Compounds

Janus electrocatalytic flow-through membrane enables highly selective singlet oxygen production

One-Pot Synthesis of Pd-Based Ternary Pd@CdS@TiO2 Nanoclusters via a Solvothermal Route and Their Catalytic Reduction Efficiency toward Toxic Hexavalent Chromium

Contact Info

Product

Resources

About

Preparation of CdS–TiO₂-Based Palladium Heterogeneous Nanocatalyst by Solvothermal Route and Its Catalytic Activity for Reduction of Nitroaromatic Compounds

Preparation of CdS–TiO₂-Based Palladium Heterogeneous Nanocatalyst by Solvothermal Route and Its Catalytic Activity for Reduction of Nitroaromatic Compounds

One-Pot Synthesis of Pd-Based Ternary Pd@CdS@TiO₂ Nanoclusters via a Solvothermal Route and Their Catalytic Reduction Efficiency toward Toxic Hexavalent Chromium