The Critical Impacts of Ligands on Heterogeneous Nanocatalysis: A Review

ACS Catalysis, Journal Year: 2021, Volume and Issue: 11(10), P. 6020 - 6058

Published: May 4, 2021

Ligand utilization is a necessary and powerful technique for the colloidal synthesis of nanoparticles (NPs) with controllable sizes regulated morphologies. For catalysis applications, it commonly believed that surface ligands on metal NPs block active catalytic sites reduce activity. Nevertheless, since 2010, an increasing number research groups have demonstrated unexpected benefits improve activity and/or selectivity. These can be ascribed to construction inorganic–organic interface, through which series factors, such as steric, electronic, solubility effects, utilized produce favorable changes interfacial environment. Considering tremendous developments in this emerging field, compile comprehensive systematic overview recent advances. In Review, we summarize critical impacts heterogeneous nanocatalysis. First, introduce vital roles colloid syntheses shapes. Second, detrimental effects nanocatalysis are described basis traditional views. Third, strategies ligand removal reviewed compared. Fourth, has been conducted past decade, three main beneficial (steric, solubility) classified discussed. each effect, possible corresponding mechanism presented, typical examples provided. Recent advances regarding density functional theory (DFT) calculations regulation coverage dedicated explaining ligand-promotion searching optimal nanocatalysts. Fifth, stabilities cutting-edge ligand-capped nanocatalysts before after reactions Finally, highlight remaining challenges propose future perspectives. Although much progress achieved, activities multifaceted still debatable. We hope Review will deepen readers' understanding actual catalysis.

Language: Английский

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Transition metal-based catalysts for electrochemical water splitting at high current density: current status and perspectives

Nanoscale, Journal Year: 2021, Volume and Issue: 13(30), P. 12788 - 12817

Published: Jan. 1, 2021

Current popular transition metal-based electrocatalysts developed for HER/OER in water splitting at high current density are critically reviewed and discussed.

Language: Английский

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Water splitting performance of metal and non-metal-doped transition metal oxide electrocatalysts

Coordination Chemistry Reviews, Journal Year: 2022, Volume and Issue: 474, P. 214864 - 214864

Published: Oct. 12, 2022

Language: Английский

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Designing Sites in Heterogeneous Catalysis: Are We Reaching Selectivities Competitive With Those of Homogeneous Catalysts?

Chemical Reviews, Journal Year: 2022, Volume and Issue: 122(9), P. 8594 - 8757

Published: March 3, 2022

A critical review of different prominent nanotechnologies adapted to catalysis is provided, with focus on how they contribute the improvement selectivity in heterogeneous catalysis. Ways modify catalytic sites range from use reversible or irreversible adsorption molecular modifiers immobilization tethering homogeneous catalysts and development well-defined solid surfaces. The latter covers methods for dispersion single-atom within supports as well complex nanostructures, it includes post-modification materials via processes such silylation atomic layer deposition. All these methodologies exhibit both advantages limitations, but all offer new avenues design specific applications. Because high cost most fact that resulting may limited thermal chemical stability, be best aimed at improving selective synthesis value-added chemicals, incorporated organic schemes, other applications are being explored address problems energy production, instance, greener processes. details each approaches discussed, representative examples provided. We conclude some general remarks future this field.

Language: Английский

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Copper‐Based Plasmonic Catalysis: Recent Advances and Future Perspectives

Advanced Materials, Journal Year: 2021, Volume and Issue: 33(32)

Published: May 29, 2021

With the capability of inducing intense electromagnetic field, energetic charge carriers, and photothermal effect, plasmonic metals provide a unique opportunity for efficient light utilization chemical transformation. Earth-abundant low-cost Cu possesses tunable localized surface plasmon resonance from ultraviolet-visible to near infrared region. Moreover, essentially exhibits remarkable catalytic performance toward various reactions owing its intriguing physical properties. Coupling with light-harvesting ability function, serves as promising platform light-driven reaction. Herein, recent advancements Cu-based photocatalysis are systematically summarized, including designing synthetic strategies catalysts, performance, mechanistic understanding over catalysts. What's more, approaches enhancement efficiency construction active centers on catalysts highlighted discussed in detail, such morphology size control, regulation electronic structure, defect strain engineering, etc. Remaining challenges future perspectives further development catalysis also proposed.

Language: Английский

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Universal strategies to multi-dimensional noble-metal-based catalysts for electrocatalysis

Coordination Chemistry Reviews, Journal Year: 2021, Volume and Issue: 436, P. 213825 - 213825

Published: March 6, 2021

Language: Английский

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Recent Progresses in Electrochemical Carbon Dioxide Reduction on Copper‐Based Catalysts toward Multicarbon Products

Advanced Functional Materials, Journal Year: 2021, Volume and Issue: 31(37)

Published: June 26, 2021

Abstract Electrochemical carbon dioxide reduction reaction (CO 2 RR) offers a promising way of effectively converting CO to value‐added chemicals and fuels by utilizing renewable electricity. To date, the electrochemical single‐carbon products, especially monoxide formate, has been well achieved. However, efficient conversion more valuable multicarbon products (e.g., ethylene, ethanol, n ‐propanol, ‐butanol) is difficult still under intense investigation. Here, recent progresses in using copper‐based catalysts are reviewed. First, mechanism RR briefly described. Then, representative approaches catalyst engineering introduced toward formation RR, such as composition, morphology, crystal phase, facet, defect, strain, surface interface. Subsequently, key aspects cell for including electrode, electrolyte, design, also discussed. Finally, advances summarized some personal perspectives this research direction provided.

Language: Английский

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Design strategies for markedly enhancing energy efficiency in the electrocatalytic CO₂ reduction reaction

Energy & Environmental Science, Journal Year: 2022, Volume and Issue: 15(9), P. 3603 - 3629

Published: Jan. 1, 2022

The review summarizes the recent strategies to improve energy efficiency of CO 2 electroreduction, a guiding metric for industrial application and economic feasibility, with emphasis on designing remarkable catalyst advanced electrolysis system.

Language: Английский

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Noble-Metal Nanoframes and Their Catalytic Applications

Chemical Reviews, Journal Year: 2020, Volume and Issue: 121(2), P. 796 - 833

Published: Dec. 4, 2020

Noble-metal nanoframes consisting of interconnected, ultrathin ridges have received considerable attention in the field heterogeneous catalysis. The enthusiasm arises from high utilization efficiency atoms for significantly reducing material loading while enhancing catalytic performance. In this review article, we offer a comprehensive assessment research endeavors design and rational synthesis noble-metal applications We start with brief introduction to unique characteristics nanoframes, followed by discussion synthetic strategies their controls terms structure composition. then present case studies elucidate mechanistic details behind mono-, bi-, multimetallic as well heterostructured hybrid systems. discuss performance electrocatalysis, thermal catalysis, photocatalysis. Finally, highlight recent progress addressing structural compositional stability issues assurance robustness applications.

Language: Английский

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An integrated platinum-nanocarbon electrocatalyst for efficient oxygen reduction

Nature Communications, Journal Year: 2022, Volume and Issue: 13(1)

Published: Nov. 7, 2022

Abstract Efficient and robust platinum-carbon electrocatalysts are of great significance for the long-term service high-performance fuel cells. Here, we report a Pt alloy integrated in cobalt-nitrogen-nanocarbon matrix by multiscale design principle efficient oxygen reduction reaction. This catalyst demonstrates an increased mass activity, 11.7 times higher than that commercial catalyst, retains stability 98.7% after 30,000 potential cycles. Additionally, this delivers current density 1.50 A cm −2 at 0.6 V hydrogen-air cell achieves power 980 mW . Comprehensive investigations demonstrate synergistic contribution components structure is responsible high-efficiency ORR

Language: Английский

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