Surface engineering at the interface of core/shell nanoparticles promotes hydrogen peroxide generation

Yonggang Feng; Qi Shao; Bolong Huang; Junbo Zhang; Xiaoqing Huang

doi:10.1093/nsr/nwy065

Surface engineering at the interface of core/shell nanoparticles promotes hydrogen peroxide generation

Yonggang Feng, Qi Shao, Bolong Huang, Junbo Zhang, Xiaoqing Huang^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

34 Citations (Scopus)

6 Downloads (CityUHK Scholars)

Abstract

Hydrogen peroxide (H2O2), an environmentally friendly oxidant, has already been widely used in many chemical synthesis and industrials as an alternative to replace traditional oxidants including chlorinated oxidizers and strong acids. However, the conventional synthesis method confronts intense energy cost, tedious separation procedures and high cost, which is not competitive with traditional oxidants. Although directH2O2 synthesis fromH2 and O2 is a green and atomically economic reaction, satisfactory activity and desirable selectivity still remain formidable challenges. Herein, for the first time, a class of Pd@NiO-x nanoparticles (NPs) (x=1, 2, 3 and 4) with a unique core@shell interface structure has been created to achieve high activity, selectivity and stability for the direct H2O2 synthesis. A precise thermal annealing on Pd@Ni-x NPs revealed that the resulting Pd@NiO-x NPs exhibited the volcano-like activity toward direct H2O2 synthesis as a function of annealing temperature and time. By tuning the composition of Pd@NiO-x NPs and the reaction condition, the efficiency of H2O2 synthesis could be well optimized with 5 wt% Pd@NiO-3/TiO2 exhibiting the highest productivity (89 mol/(kgcat h)) and selectivity (91%) to H2O2 as well as excellent stability, making it one of the best catalysts for direct H2O2 synthesis reported to date. © The Author(s) 2018. Published by Oxford University Press on behalf of China Science Publishing & Media Ltd. All rights reserved.

Original language	English
Pages (from-to)	895-906
Journal	National Science Review
Volume	5
Issue number	6
DOIs	https://doi.org/10.1093/nsr/nwy065
Publication status	Published - 1 Nov 2018
Externally published	Yes

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Research Keywords

Core
shell structure
Direct synthesis
Hydrogen peroxide
Nickel oxide
Palladium

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title = "Surface engineering at the interface of core/shell nanoparticles promotes hydrogen peroxide generation",

abstract = "Hydrogen peroxide (H2O2), an environmentally friendly oxidant, has already been widely used in many chemical synthesis and industrials as an alternative to replace traditional oxidants including chlorinated oxidizers and strong acids. However, the conventional synthesis method confronts intense energy cost, tedious separation procedures and high cost, which is not competitive with traditional oxidants. Although directH2O2 synthesis fromH2 and O2 is a green and atomically economic reaction, satisfactory activity and desirable selectivity still remain formidable challenges. Herein, for the first time, a class of Pd@NiO-x nanoparticles (NPs) (x=1, 2, 3 and 4) with a unique core@shell interface structure has been created to achieve high activity, selectivity and stability for the direct H2O2 synthesis. A precise thermal annealing on Pd@Ni-x NPs revealed that the resulting Pd@NiO-x NPs exhibited the volcano-like activity toward direct H2O2 synthesis as a function of annealing temperature and time. By tuning the composition of Pd@NiO-x NPs and the reaction condition, the efficiency of H2O2 synthesis could be well optimized with 5 wt% Pd@NiO-3/TiO2 exhibiting the highest productivity (89 mol/(kgcat h)) and selectivity (91%) to H2O2 as well as excellent stability, making it one of the best catalysts for direct H2O2 synthesis reported to date. {\textcopyright} The Author(s) 2018. Published by Oxford University Press on behalf of China Science Publishing & Media Ltd. All rights reserved.",

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T1 - Surface engineering at the interface of core/shell nanoparticles promotes hydrogen peroxide generation

AU - Feng, Yonggang

AU - Shao, Qi

AU - Huang, Bolong

AU - Zhang, Junbo

AU - Huang, Xiaoqing

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2018/11/1

Y1 - 2018/11/1

N2 - Hydrogen peroxide (H2O2), an environmentally friendly oxidant, has already been widely used in many chemical synthesis and industrials as an alternative to replace traditional oxidants including chlorinated oxidizers and strong acids. However, the conventional synthesis method confronts intense energy cost, tedious separation procedures and high cost, which is not competitive with traditional oxidants. Although directH2O2 synthesis fromH2 and O2 is a green and atomically economic reaction, satisfactory activity and desirable selectivity still remain formidable challenges. Herein, for the first time, a class of Pd@NiO-x nanoparticles (NPs) (x=1, 2, 3 and 4) with a unique core@shell interface structure has been created to achieve high activity, selectivity and stability for the direct H2O2 synthesis. A precise thermal annealing on Pd@Ni-x NPs revealed that the resulting Pd@NiO-x NPs exhibited the volcano-like activity toward direct H2O2 synthesis as a function of annealing temperature and time. By tuning the composition of Pd@NiO-x NPs and the reaction condition, the efficiency of H2O2 synthesis could be well optimized with 5 wt% Pd@NiO-3/TiO2 exhibiting the highest productivity (89 mol/(kgcat h)) and selectivity (91%) to H2O2 as well as excellent stability, making it one of the best catalysts for direct H2O2 synthesis reported to date. © The Author(s) 2018. Published by Oxford University Press on behalf of China Science Publishing & Media Ltd. All rights reserved.

AB - Hydrogen peroxide (H2O2), an environmentally friendly oxidant, has already been widely used in many chemical synthesis and industrials as an alternative to replace traditional oxidants including chlorinated oxidizers and strong acids. However, the conventional synthesis method confronts intense energy cost, tedious separation procedures and high cost, which is not competitive with traditional oxidants. Although directH2O2 synthesis fromH2 and O2 is a green and atomically economic reaction, satisfactory activity and desirable selectivity still remain formidable challenges. Herein, for the first time, a class of Pd@NiO-x nanoparticles (NPs) (x=1, 2, 3 and 4) with a unique core@shell interface structure has been created to achieve high activity, selectivity and stability for the direct H2O2 synthesis. A precise thermal annealing on Pd@Ni-x NPs revealed that the resulting Pd@NiO-x NPs exhibited the volcano-like activity toward direct H2O2 synthesis as a function of annealing temperature and time. By tuning the composition of Pd@NiO-x NPs and the reaction condition, the efficiency of H2O2 synthesis could be well optimized with 5 wt% Pd@NiO-3/TiO2 exhibiting the highest productivity (89 mol/(kgcat h)) and selectivity (91%) to H2O2 as well as excellent stability, making it one of the best catalysts for direct H2O2 synthesis reported to date. © The Author(s) 2018. Published by Oxford University Press on behalf of China Science Publishing & Media Ltd. All rights reserved.

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KW - shell structure

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KW - Nickel oxide

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DO - 10.1093/nsr/nwy065

M3 - RGC 21 - Publication in refereed journal

SN - 2095-5138

VL - 5

SP - 895

EP - 906

JO - National Science Review

JF - National Science Review

IS - 6

ER -

Surface engineering at the interface of core/shell nanoparticles promotes hydrogen peroxide generation

Abstract

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Research Keywords

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