Reaction pathways for the highly selective and durable electrochemical CO2 to CO conversion on ZnO supported Ag nanoparticles in KCl electrolyte

Bhalothia, Dinesh; Lee, Da‐Wei; Jhao, Guan-Ping; Liu, Hsiao-Yun; Jia, Yanyan; Dai, Sheng; Wang, Kuan Wen; Chen, Tsan‐Yao

doi:10.1016/j.apsusc.2022.155224

Cited by 15 publications

(4 citation statements)

References 53 publications

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“…For instance, it is a well-known fact that the electrochemical CO 2 reduction (ECR) is severely hampered by competitive HER and therefore demands highly selective catalysts to boost the ECR, while simultaneously suppressing the HER. [33][34] In this case (i. e., case B), one of the active sites blocks the competitive reaction, while the adjacent one boosts the target reaction and therefore the desired reaction product is obtained. In case C, adjacent active sites promote the parallel catalytic reactions simultaneously to boost the overall reaction.…”

Section: The Synergistic Collaboration Between Adjacent Domainsmentioning

confidence: 99%

Bridging the Gap Between Single Atoms, Atomic Clusters and Nanoparticles in Electrocatalysis: Hierarchical Structured Heterogeneous Catalysts

Bhalothia,

Beniwal,

Kumar Saravanan

et al. 2024

ChemElectroChem

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In the past decade, remarkable progress has been made in advancing heterogeneous single‐atom catalysts (SACs), propelled by their extraordinary properties such as unique activities, high selectivity, and efficient metal utilization. In contrast to their nanoparticle counterparts, SACs showcase distinct advantages, yet they are not exempt from limitations. A primary constraint lies in their relatively low metal content and lack of ensemble sites, potentially impacting overall catalytic activity. Stability concerns also arise, as isolated metal atoms may be prone to aggregation, oxidation, and other structural changes. To surmount these challenges, there is a burgeoning exploration of synergies between SACs and other active species, such as single atoms, atomic clusters, or nanoparticles. This approach holds promise for augmenting the efficiency of complex catalytic reactions. However, a systematic examination of their integration and potential synergy has been notably absent. This review strives to fill that gap by comprehensively exploring key interactions, complementary effects, and bifunctional roles of single atoms, atomic clusters and nanoparticles when combined in different compositions and configurations, especially for oxygen reduction reaction (ORR) and hydrogen evolution reaction (HER) applications. Additionally, the review sheds new light on the underlying catalytic mechanisms by offering insights through specific case studies. In particular, it emphasizes the dynamic nature of each active species and their interactions within these innovative catalytic entities, specifically in the context of heterogeneous electrocatalytic processes, backed by compelling in situ and operando evidence. Concluding the discussion, the review addresses the current challenges and provides a glimpse into the prospects of these integrated catalytic systems in the future. The contents can serve as a valuable guide for the design of advanced catalysts, promoting the deliberate combination and synergy of binary or multiple active species to further advance the field of catalysis with a clear roadmap and easy assessments.

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Section: The Synergistic Collaboration Between Adjacent Domainsmentioning

confidence: 99%

Bridging the Gap Between Single Atoms, Atomic Clusters and Nanoparticles in Electrocatalysis: Hierarchical Structured Heterogeneous Catalysts

Bhalothia,

Beniwal,

Kumar Saravanan

et al. 2024

ChemElectroChem

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“…Reproduced with permission: Copyright 2022, Wiley. [74] | 427 numerous works have demonstrated that Cu (0.08Cu/ ZnO, Cu x Zn 1−x O, CuO/ZnO, Cu-ZnO), [39,51,77,78] Ag (ZnO@Ag NC, 1% Ag-doped ZnO), [47,79] C (C-doped ZnO slab), [72] N (N: ZnO), [80] Ni (ZnO-Ni), [81] Ce (Ce 0.016 Zn 0.984 O) [82] and other elements have been successfully doped into Zn-based materials. The compositions and ratios of the introduced elements were critical in affecting the current density and product selectivity of the Zn-based materials.…”

Section: Dopingmentioning

confidence: 99%

Nano‐engineering in zinc‐based catalysts for CO₂ electroreduction: Advances and challenges

Wang,

Zhu,

Lin

et al. 2024

Carbon Neutralization

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Electrocatalytic CO2 reduction (CO2RR), an emerging sustainable energy technology to convert atmospheric CO2 into value‐added chemicals, has received extensive attention. However, the high thermodynamic stability of CO2 and the competitive hydrogen evolution reaction lead to poor catalytic performances, hardly meeting industrial application demands. Due to abundant reserves and favorable CO selectivity, zinc (Zn)‐based catalysts have been considered one of the most prospective catalysts for CO2‐to‐CO conversion. A series of advanced zinc‐based electrocatalysts, including Zn nanosheets, Zn single atoms, defective ZnO, and metallic Zn alloys, have been widely reported for CO2RR. Despite significant progress, a comprehensive and fundamental summary is still lacking. Herein, this review provides a thorough discussion of effective modulation strategies such as morphology design, doping, defect, heterointerface, alloying, facet, and single‐atom, emphasizing how these methods can influence the electronic structure and adsorption properties of intermediates, as well as the catalytic activity of Zn‐based materials. Moreover, the challenges and opportunities of Zn‐based catalysts for CO2RR are also discussed. This review is expected to promote the broader application of efficient Zn‐based catalysts in electrocatalytic CO2RR, thus contributing to a future of sustainable energy.

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“…Nanomaterials 2023, 13, 1801 2 of 12 Therefore, establishing efficient CO 2 utilization strategies is imperative. In this context, the catalytic transformation of carbon dioxide (CO 2 ) into beneficial fuels and commodities is of potential interest [2,3]. Such an approach not only mitigates atmospheric CO 2 concentration but also circumvents energy issues.…”

Section: Introductionmentioning

confidence: 99%

Sub-Millisecond Laser-Irradiation-Mediated Surface Restructure Boosts the CO Production Yield of Cobalt Oxide Supported Pd Nanoparticles

et al. 2023

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The catalytic conversion of CO2 into valuable commodities has the potential to balance ongoing energy and environmental issues. To this end, the reverse water–gas shift (RWGS) reaction is a key process that converts CO2 into CO for various industrial processes. However, the competitive CO2 methanation reaction severely limits the CO production yield; therefore, a highly CO-selective catalyst is needed. To address this issue, we have developed a bimetallic nanocatalyst comprising Pd nanoparticles on the cobalt oxide support (denoted as CoPd) via a wet chemical reduction method. Furthermore, the as-prepared CoPd nanocatalyst was exposed to sub-millisecond laser irradiation with per-pulse energies of 1 mJ (denoted as CoPd-1) and 10 mJ (denoted as CoPd-10) for a fixed duration of 10 s to optimize the catalytic activity and selectivity. For the optimum case, the CoPd-10 nanocatalyst exhibited the highest CO production yield of ∼1667 μmol g−1catalyst, with a CO selectivity of ∼88% at a temperature of 573 K, which is a 41% improvement over pristine CoPd (~976 μmol g−1catalyst). The in-depth analysis of structural characterizations along with gas chromatography (GC) and electrochemical analysis suggested that such a high catalytic activity and selectivity of the CoPd-10 nanocatalyst originated from the sub-millisecond laser-irradiation-assisted facile surface restructure of cobalt oxide supported Pd nanoparticles, where atomic CoOx species were observed in the defect sites of the Pd nanoparticles. Such an atomic manipulation led to the formation of heteroatomic reaction sites, where atomic CoOx species and adjacent Pd domains, respectively, promoted the CO2 activation and H2 splitting steps. In addition, the cobalt oxide support helped to donate electrons to Pd, thereby enhancing its ability of H2 splitting. These results provide a strong foundation to use sub-millisecond laser irradiation for catalytic applications.

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Reaction pathways for the highly selective and durable electrochemical CO2 to CO conversion on ZnO supported Ag nanoparticles in KCl electrolyte

Cited by 15 publications

References 53 publications

Bridging the Gap Between Single Atoms, Atomic Clusters and Nanoparticles in Electrocatalysis: Hierarchical Structured Heterogeneous Catalysts

Bridging the Gap Between Single Atoms, Atomic Clusters and Nanoparticles in Electrocatalysis: Hierarchical Structured Heterogeneous Catalysts

Nano‐engineering in zinc‐based catalysts for CO₂ electroreduction: Advances and challenges

Sub-Millisecond Laser-Irradiation-Mediated Surface Restructure Boosts the CO Production Yield of Cobalt Oxide Supported Pd Nanoparticles

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Reaction pathways for the highly selective and durable electrochemical CO2 to CO conversion on ZnO supported Ag nanoparticles in KCl electrolyte

Cited by 15 publications

References 53 publications

Bridging the Gap Between Single Atoms, Atomic Clusters and Nanoparticles in Electrocatalysis: Hierarchical Structured Heterogeneous Catalysts

Bridging the Gap Between Single Atoms, Atomic Clusters and Nanoparticles in Electrocatalysis: Hierarchical Structured Heterogeneous Catalysts

Nano‐engineering in zinc‐based catalysts for CO2 electroreduction: Advances and challenges

Sub-Millisecond Laser-Irradiation-Mediated Surface Restructure Boosts the CO Production Yield of Cobalt Oxide Supported Pd Nanoparticles

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Nano‐engineering in zinc‐based catalysts for CO₂ electroreduction: Advances and challenges