Partially Oxidized Palladium Nanodots for Enhanced Electrocatalytic Carbon Dioxide Reduction

Lu, Hui; Zhang, Le; Zhong, Ju Hua; Yang, Hua Gui

doi:10.1002/asia.201800946

Cited by 10 publications

(3 citation statements)

References 36 publications

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“…[64] The presence of TM and TMO components in a catalyst often facilitates bifunctional electrocatalysis, whereby the metal and metal oxide components possess catalytic activity for different reactions. [65,66] Commonly, TM/TMO materials are formed through annealing at high temperatures, to convert part of the TM to TMO. [65,66] However, the distribution of metallic and oxide components in the resultant material may be difficult to control, thus making it difficult to guarantee the formation of separate functional domains which do not interfere with one another.…”

Section: Transition Metal Oxidesmentioning

confidence: 99%

“…[65,66] Commonly, TM/TMO materials are formed through annealing at high temperatures, to convert part of the TM to TMO. [65,66] However, the distribution of metallic and oxide components in the resultant material may be difficult to control, thus making it difficult to guarantee the formation of separate functional domains which do not interfere with one another. Herein, Janus architecture is advantageous as the metallic and oxide segments can exist as separate functional domains within a single catalyst structure, where each domain retains its inherent activity, with little to no interference and inhibition from other domains.…”

Section: Transition Metal Oxidesmentioning

confidence: 99%

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Versatile Janus Architecture for Electrocatalytic Applications

Sui

Lee

2022

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be modified to complement a multitude of electrocatalytic processes. Structurally, Janus architectures can be determined by their characteristic compartmentalized structure with distinct functional domains. The compartmentalization of functional domains in the Janus material can minimize interference by different types of active sites in a Janus material, allowing the individual functional domains to preserve their intrinsic activity, giving Janus architectures their anisotropic properties, which are advantageous for multi-functional electrocatalysis. [5] The generalized Janus structure is shown in Figure 1. In light of the unique and advantageous characteristics of Janus materials, it is necessary to review and rethink their design strategies and future directions. Herein, this review provides a comprehensive insight into the unique catalytic benefits of Janus materials across various electrocatalytic reactions and commercial applications. Moreover, this review also proposes the prospects of Janus architecture for future exploration. The outline of the review is presented in Figure 2. Janus Architecture: Structure, Synthesis, and Electrochemical Mechanism Janus StructureJanus materials possess multiple interconnected functional domains which act as compartmentalized active sites [6][7][8] (Figure 3). Surface modification of Janus materials can also facilitate the conjugation of distinct chemical moieties with specific functionality, [9][10][11] allowing individual domains to retain their inherent activity, with little to no interference from other domains. These co-existing functional domains give Janus electrocatalysts their anisotropic properties, making them highly favorable for multi-functional electrocatalysis. Janus SynthesisThe compartmentalized Janus structure can be created using two general techniques. The first technique involves the synthesis of a single catalyst structure with multiple active sites, one for each electrochemical half-reaction. Although this technique gives the structure great durability as a result of the single catalyst structure formation, however, this technique is complex and tough to accomplish due to the restricted number of catalysts with suitable active sites. Moreover, due to the concurrent formation of the single Janus structure, this technique Janus architectures have garnered great research efforts in recent years, leading to outstanding advances in electrocatalysis. Benefiting from the synergistic combination of their anisotropy which endows the manifestation of various co-existing electrochemical properties, and their compartmentalized structure that enables each functional domain to retain its inherent activity, with little to no interference from other domains, Janus architectures show great potential as exceptionally versatile electrocatalysts to complement a plethora of electrocatalytic processes. Thus, coupled with the growing interest in Janus architectures for electrocatalysis, it is imperative to investigate and reconsider their design strategies and future dire...

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Section: Transition Metal Oxidesmentioning

confidence: 99%

Section: Transition Metal Oxidesmentioning

confidence: 99%

Versatile Janus Architecture for Electrocatalytic Applications

Sui

Lee

2022

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“…It is acknowledged that CO is an indispensable constituent of syngas (a mixture of CO and H 2 ), which is generally used to produce Fischer-Tropsch fuels such as gasoline, methanol and ammonia [18,19]. Gold (Au) [20,21], silver (Ag) [22,23], palladium (Pd) [24,25] and zinc (Zn) [26,27], which exhibit outstanding selectivity to CO, have been demonstrated to be efficient electrocatalysts for CO 2 reduction. Nevertheless, gold and palladium are improper for large-scale utilization owing to their rarity and costliness [28].…”

Section: Introductionmentioning

confidence: 99%

Ag Nanowires/C as a Selective and Efficient Catalyst for CO2 Electroreduction

Zeng¹,

Shi²,

Chen³

et al. 2021

Energies

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The development of a selective and efficient catalyst for CO2 electroreduction is a great challenge in CO2 storage and conversion research. Silver metal is an attractive alternative due to its enhanced catalytic performance of CO2 electroreduction to CO. Here, we prepared Ag nanowires anchored on carbon support as an excellent electrocatalyst with remarkably high selectivity for the CO2 reduction to CO. The CO Faradic efficiency was approximately 100%. The enhanced catalytic performances may be ascribed to dense active sites exposed on the Ag nanowires’ high specific surface area, by the uniform dispersion of Ag nanowires on the carbon support. Our research demonstrates that Ag nanowires supported on carbon have potential as promising catalysts in CO2 electroreduction.

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Enhancing CO2 methanation via synergistic multi-valence Pd0−Pdδ interactions on TiO2

Wu,

Kao,

et al. 2024

Applied Surface Science

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Partially Oxidized Palladium Nanodots for Enhanced Electrocatalytic Carbon Dioxide Reduction

Cited by 10 publications

References 36 publications

Versatile Janus Architecture for Electrocatalytic Applications

Versatile Janus Architecture for Electrocatalytic Applications

Ag Nanowires/C as a Selective and Efficient Catalyst for CO2 Electroreduction

Enhancing CO2 methanation via synergistic multi-valence Pd0−Pdδ interactions on TiO2

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