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

Article Chemistry, Physical

Surface anchored atomic cobalt-oxide species coupled with oxygen vacancies boost the CO-production yield of Pd nanoparticles

Dinesh Bhalothia et al.

Summary: A novel nanocatalyst (CoPd-CoOOV) has been developed for the catalytic transformation of CO2 into CO, showing high selectivity and activity at relatively low temperatures.

SUSTAINABLE ENERGY & FUELS (2023)

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Article Materials Science, Multidisciplinary

Pt-Mediated Interface Engineering Boosts the Oxygen Reduction Reaction Performance of Ni Hydroxide-Supported Pd Nanoparticles

Dinesh Bhalothia et al.

ACS Applied Materials & Interfaces (2023)

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Article Chemistry, Physical

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

Dinesh Bhalothia et al.

Summary: This study introduces a ZnO supported Ag nanocatalyst for efficient electrochemical CO2 reduction, with high selectivity and stability. The synergistic collaboration between ZnO and Ag was found to be crucial for enhancing CO selectivity.

APPLIED SURFACE SCIENCE (2023)

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Article Engineering, Environmental

Oxygen vacancies endow atomic cobalt-palladium oxide clusters with outstanding oxygen reduction reaction activity

Thomas Yang et al.

Summary: Considering the importance of fuel cells, developing highly efficient and durable platinum-free catalysts is crucial. This study proposes a novel nanocatalyst, which consists of oxygen vacancies enriched atomic CoPdOx clusters anchored Pd nanoparticles on a cobalt-oxide support. The resulting nanocatalyst demonstrates exceptional mass activity and durability in the oxygen reduction reaction, surpassing the commercial catalyst by 65 times. The study also reveals the potential synergism between CoPdOxV and metallic Pd-sites, providing insights for designing high-performance catalysts.

CHEMICAL ENGINEERING JOURNAL (2023)

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Article Chemistry, Physical

Highly dispersed mesoporous Cu/γ-Al2O3 catalyst for RWGS reaction

Xin Ai et al.

Summary: The extensive use of fossil energy leads to the wanton emission of CO2 and serious environmental problems. This paper focuses on the utilization of CO2 resources and the design of a high active CO2 hydrogenation catalyst. Cu/gamma-Al2O3 catalysts were prepared using wet impregnation and grinding methods, and their physicochemical properties were characterized. The results demonstrate the significance of Cu content on the catalyst's performance.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2022)

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Article Chemistry, Multidisciplinary

Design and Analysis of Metal Oxides for CO2 Reduction Using Machine Learning, Transfer Learning, and Bayesian Optimization

Ryo Iwama et al.

Summary: In this study, we aimed to achieve resource recycling by utilizing CO2 generated in a chemical production and disposal process. We successfully developed metal oxides and optimized experimental conditions to achieve target CO2 and H-2 conversion extents using machine learning and Bayesian optimization.

ACS OMEGA (2022)

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Review Chemistry, Physical

A Review of CeO2 Supported Catalysts for CO2 Reduction to CO through the Reverse Water Gas Shift Reaction

Parisa Ebrahimi et al.

Summary: The catalytic conversion of CO2 to CO by the reverse water gas shift (RWGS) reaction, followed by established synthesis gas conversion technologies, is a practical technique for converting CO2 to valuable chemicals and fuels in industrial settings. This study reviews the use of ceria-supported active metal catalysts in the RWGS reaction and explores the fundamental features of ceria. It also examines the RWGS reaction mechanism, reaction kinetics on supported catalysts, and the importance of oxygen vacancies. Recent advances in CeO2 supported metal catalyst design strategies are identified and assessed to understand the impact of physicochemical parameters on catalytic performance.

CATALYSTS (2022)

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Article Chemistry, Physical

Hybrid Composite of Subnanometer CoPd Cluster-Decorated Cobalt Oxide-Supported Pd Nanoparticles Give Outstanding CO Production Yield in CO2 Reduction Reaction

Che Yan et al.

Summary: In this study, a novel nanocatalyst consisting of oxygen vacancy-enriched CoPd hybrid cluster and cobalt oxide support was proposed for CO2 hydrogenation to CO. The results showed that the catalyst could initiate the reaction at lower temperature and achieve high CO production yield and selectivity.

CATALYSTS (2022)

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Article Green & Sustainable Science & Technology

Valorization of biomass-derived CO2 residues with Cu-MnOx catalysts for RWGS reaction

Judith Gonzalez-Arias et al.

Summary: This study investigated the design of effective catalytic systems for upgrading real CO2-rich residual streams derived from biomass valorization, showing that improved catalyst performance can be achieved through Mn incorporation to enhance Cu dispersions and surface basic concentrations. The optimal Cu to Mn ratios were found to vary under different RWGS reaction conditions. Additional MnOx promoted Cu dispersion, making the (5 wt%) Cu-(10 wt%) Mn/Al2O3 catalyst the best performing sample in CO2-rich residual feedstock.

RENEWABLE ENERGY (2022)

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Article Chemistry, Physical

Atomically dispersed Pt/CeO2 catalyst with superior CO selectivity in reverse water gas shift reaction

Zhiying Zhao et al.

Summary: The study found that atomically dispersed Pt species can improve CO selectivity and inhibit the formation of CH4 in the RWGS reaction, demonstrating a new strategy for designing catalysts with outstanding CO selectivity.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

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Article Chemistry, Physical

Structure-Activity Relationships of Copper- and Potassium-Modified Iron Oxide Catalysts during Reverse Water-Gas Shift Reaction

Mengwei Gu et al.

Summary: The study found that the surface structure and reducibility/basicity of iron oxide catalysts modified with Cu and K are strongly interdependent, with the addition of K altering the reaction pathway and Cu facilitating hydrogen dissociation to enhance both reaction mechanisms.

ACS CATALYSIS (2021)

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Article Chemistry, Physical

Submillisecond Laser Annealing Induced Surface and Subsurface Restructuring of Cu-Ni-Pd Trimetallic Nanocatalyst Promotes Thermal CO2 Reduction

Dinesh Bhalothia et al.

Summary: The study focuses on optimizing the CO2RR performance using trimetallic NC and laser annealing, showing a significant improvement in CO selectivity and yield under the optimal condition.

ACS APPLIED ENERGY MATERIALS (2021)

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Review Chemistry, Multidisciplinary

Pulsed Laser in Liquids Made Nanomaterials for Catalysis

Ryland C. Forsythe et al.

Summary: This article summarizes the importance of catalysis in modern life and its economic impact, introduces the key to developing new catalysts, and the method of preparing tailored nanomaterials through pulsed laser in liquids synthesis. The paper discusses the fundamentals, advantages, challenges, solutions, and latest applications of this technique, providing a practical guide for the catalysis community to advance catalyst development through leveraging the synergies of these two research fields.

CHEMICAL REVIEWS (2021)

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Article Chemistry, Physical