Inorganic shell nanostructures to enhance performance and stability of metal nanoparticles in catalytic applications

Choi, Inhee; Lee, Hyeon Kyeong; Lee, Gyoung Woo; Kim, Jiyull; Joo, Ji Bong

doi:10.1007/s12598-019-01203-8

Cited by 15 publications

(4 citation statements)

References 72 publications

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“…Compared with pioneering works (Table S1), the bifunctional BiPdC cathode successfully achieves CO 2 –HCOOH interconversion and realizes long-time reversible reactions toward CO 2 –HCOOH. In terms of Zn–CO 2 battery discharging performance, many pioneering works of literature display a maximum power density below 0.8 mW cm –2 due to the limited discharging current and voltage causing undesired exporting power density for practical application. ,,− In fact, as a newly viable technology, the rechargeable Zn–CO 2 batteries combine sustainable electricity supplement with value-added chemical production simultaneously, revealing both electrical output and CO 2 fixation applications. ,− …”

Section: Resultsmentioning

confidence: 99%

Bifunctional BiPd Alloy Particles Anchored on Carbon Matrix for Reversible Zn–CO₂ Battery

Gao

Chen

Liu

et al. 2022

ACS Appl. Nano Mater.

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Exploring reversible Zn–CO2 batteries holds great promising potential for future CO2 fixation and energy supply. Herein, the bifunctional PdBi alloy anchoring on carbon substrate (BiPdC) is proposed for simultaneously catalyzing carbon dioxide reduction reaction (CO2RR) and formic acid oxidation (FAO). The synergistic effect between Pd and Bi overcomes the sluggish kinetics of CO2RR and FAO, causing the HCOOH Faraday efficiency (FEHCOOH) of 63.4% and 6.2 mA cm–2 current density for FAO. Benefiting from the CO2–HCOOH interconversion, the homemade reversible Zn–CO2 battery exhibits the optimal 52.6% FEHCOOH and 1.1 V voltage gap within 45 h of cycling.

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Section: Resultsmentioning

confidence: 99%

Bifunctional BiPd Alloy Particles Anchored on Carbon Matrix for Reversible Zn–CO₂ Battery

Gao

Chen

Liu

et al. 2022

ACS Appl. Nano Mater.

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“…Cheng [ 9 ] fabricated a metal organic skeleton-based shell-isolated nanocatalyst and metal-activated cascade system, which exhibited high ROS generation capability owing to a metal oxidase-mimicking catalytic process. Hexahedral Au@AgPt nanoparticles (NPs) with excellent catalytic properties and superior surface-enhanced Raman scattering (SERS) activity were synthesized by Song [ 10 ]. These above nanomaterials also exhibited good catalytic reaction activity and better detection behavior for Hg 2+ .…”

Section: Introductionmentioning

confidence: 99%

Nanoenzyme Reactor-Based Oxidation-Induced Reaction for Quantitative SERS Analysis of Food Antiseptics

et al. 2022

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Nanoenzyme reactors based on shell-isolated colloidal plasmonic nanomaterials are well-established and widely applied in catalysis and surface-enhanced Raman scattering (SERS) sensing. In this study, a “double wing with one body” strategy was developed to establish a reduced food antiseptic sensing method using shell-isolated colloidal plasmonic nanomaterials. Gold nano particles (Au NPs) were used to synthesize the colloidal plasmonic nanomaterials, which was achieved by attaching ferrous ions (Fe2+), ferric ions (Fe3+), nitroso (NO−) group, cyanogen (CN−) group, and dopamine (DA) via coordinative interactions. The oxidation-induced reaction was utilized to generate •OH following the Fe2+-mediated Fenton reaction with the shell-isolated colloidal plasmonic nanomaterials. The •OH generated in the cascade reactor had a high oxidative capacity toward acid preservatives. Importantly, with the introduction of the signal molecule DA, the cascade reactor exhibited also induced a Raman signal change by reaction with the oxidation product (malondialdehyde) which improved the sensitivity of the analysis. In addition, the stable shell-isolated structure was effective in realizing a reproducible and quantitative SERS analysis method, which overcomes previous limitations and could extend the use of nanoenzymes to various complex sensing applications.

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“…It is also widely known that hollow nanostructures show many advantageous characteristics in catalytic reactions [ 34 , 35 , 36 , 37 , 38 ]. Hollow nanostructures with a porous shell layer possess a large surface area per unit mass.…”

Section: Introductionmentioning

confidence: 99%

Effects of the Crystalline Properties of Hollow Ceria Nanostructures on a CuO-CeO2 Catalyst in CO Oxidation

et al. 2022

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The development of an efficient and economic catalyst with high catalytic performance is always challenging. In this study, we report the synthesis of hollow CeO2 nanostructures and the crystallinity control of a CeO2 layer used as a support material for a CuO-CeO2 catalyst in CO oxidation. The hollow CeO2 nanostructures were synthesized using a simple hydrothermal method. The crystallinity of the hollow CeO2 shell layer was controlled through thermal treatment at various temperatures. The crystallinity of hollow CeO2 was enhanced by increasing the calcination temperature, but both porosity and surface area decreased, showing an opposite trend to that of crystallinity. The crystallinity of hollow CeO2 significantly influenced both the characteristics and the catalytic performance of the corresponding hollow CuO-CeO2 (H-Cu-CeO2) catalysts. The degree of oxygen vacancy significantly decreased with the calcination temperature. H-Cu-CeO2 (HT), which presented the lowest CeO2 crystallinity, not only had a high degree of oxygen vacancy but also showed well-dispersed CuO species, while H-Cu-CeO2 (800), with well-developed crystallinity, showed low CuO dispersion. The H-Cu-CeO2 (HT) catalyst exhibited significantly enhanced catalytic activity and stability. In this study, we systemically analyzed the characteristics and catalyst performance of hollow CeO2 samples and the corresponding hollow CuO-CeO2 catalysts.

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Inorganic shell nanostructures to enhance performance and stability of metal nanoparticles in catalytic applications

Cited by 15 publications

References 72 publications

Bifunctional BiPd Alloy Particles Anchored on Carbon Matrix for Reversible Zn–CO₂ Battery

Bifunctional BiPd Alloy Particles Anchored on Carbon Matrix for Reversible Zn–CO₂ Battery

Nanoenzyme Reactor-Based Oxidation-Induced Reaction for Quantitative SERS Analysis of Food Antiseptics

Effects of the Crystalline Properties of Hollow Ceria Nanostructures on a CuO-CeO2 Catalyst in CO Oxidation

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Inorganic shell nanostructures to enhance performance and stability of metal nanoparticles in catalytic applications

Cited by 15 publications

References 72 publications

Bifunctional BiPd Alloy Particles Anchored on Carbon Matrix for Reversible Zn–CO2 Battery

Bifunctional BiPd Alloy Particles Anchored on Carbon Matrix for Reversible Zn–CO2 Battery

Nanoenzyme Reactor-Based Oxidation-Induced Reaction for Quantitative SERS Analysis of Food Antiseptics

Effects of the Crystalline Properties of Hollow Ceria Nanostructures on a CuO-CeO2 Catalyst in CO Oxidation

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Bifunctional BiPd Alloy Particles Anchored on Carbon Matrix for Reversible Zn–CO₂ Battery

Bifunctional BiPd Alloy Particles Anchored on Carbon Matrix for Reversible Zn–CO₂ Battery