Design and Synthesis of Noble Metal‐Based Alloy Electrocatalysts and Their Application in Hydrogen Evolution Reaction

Small, Journal Year: 2023, Volume and Issue: 19(35)

Published: April 26, 2023

Abstract Hydrogen energy is regarded as the ultimate source for future human society, and preparation of hydrogen from water electrolysis recognized most ideal way. One key factors to achieve large‐scale production by splitting availability highly active stable electrocatalysts. Although non‐precious metal electrocatalysts have made great strides in recent years, best evolution reaction (HER) are still based on noble metals. Therefore, it particularly important improve overall activity while reducing metals load. Alloying strategies can shoulder burden optimizing cost improving performance. With this mind, work application metal‐based alloy field summarized. In review, first, mechanism HER described; then, current development synthesis methods presented; finally, an example analysis practical studies presented. addition, at end prospects, opportunities, challenges facing tried discuss.

Language: Английский

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Synthesis, properties, and applications of high-entropy oxide ceramics: Current progress and future perspectives

Journal of Alloys and Compounds, Journal Year: 2023, Volume and Issue: 960, P. 170690 - 170690

Published: May 23, 2023

Language: Английский

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A review of progress in proton ceramic electrochemical cells: material and structural design, coupled with value-added chemical production

Energy & Environmental Science, Journal Year: 2023, Volume and Issue: 16(12), P. 5721 - 5770

Published: Jan. 1, 2023

Improved performance of proton ceramic electrochemical cells (PCECs) through material development and structural design, application PCECs for efficient energy conversion render them promising clean sustainable development.

Language: Английский

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Spin-related Cu-Co pair to increase electrochemical ammonia generation on high-entropy oxides

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Jan. 4, 2024

Abstract The electrochemical conversion of nitrate to ammonia is a way eliminate pollutant in water. Cu-Co synergistic effect was found produce excellent performance generation. However, few studies have focused on this high-entropy oxides. Here, we report the spin-related nitrate-to-ammonia using oxide Mg 0.2 Co Ni Cu Zn O. In contrast, Li-incorporated MgCoNiCuZnO exhibits inferior performance. By correlating electronic structure, that spin states are crucial for pair with high O can facilitate generation, while low decreases These findings offer important insights employing and inside selective catalysis. It also indicates generality magnetic synthesis between electrocatalysis thermal

Language: Английский

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Irradiation performance of high entropy ceramics: A comprehensive comparison with conventional ceramics and high entropy alloys

Progress in Materials Science, Journal Year: 2024, Volume and Issue: 143, P. 101250 - 101250

Published: Feb. 8, 2024

Language: Английский

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Emerging high-entropy compounds for electrochemical energy storage and conversion

Progress in Materials Science, Journal Year: 2024, Volume and Issue: 145, P. 101300 - 101300

Published: April 18, 2024

Language: Английский

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Frontiers in high entropy alloys and high entropy functional materials

Rare Metals, Journal Year: 2024, Volume and Issue: 43(10), P. 4639 - 4776

Published: Aug. 28, 2024

Language: Английский

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High-entropy oxides for energy-related electrocatalysis

Materials Today Catalysis, Journal Year: 2024, Volume and Issue: 4, P. 100039 - 100039

Published: Jan. 17, 2024

Electrocatalysis plays a crucial role in the conversion and storage of renewable energy, offering significant potential for addressing energy crisis environmental concerns. High-entropy oxides (HEOs), class emerging functional materials, have gained increasing attention electrocatalysis due to their stable crystal structure, exceptional geometric compatibility, unique electronic balance factors, abundant active sites. In this comprehensive review, we present recent advancements utilizing HEOs as catalysts various energy-based electrocatalytic reactions. We begin with an overview that includes definitions, fundamental properties, theoretical investigations. Subsequently, describe different synthetic methods while highlighting two newly-developed techniques. Furthermore, extensively discuss developments HEO-based electrocatalysts diverse structures such rock-salt-type, rutile-type, spinel-type, perovskite-type, other specially-structured HEOs. Special emphasis is placed on designed strategies aimed at enhancing performance exploring correlations between structure/ composition performance. Finally, provide concluding remarks along perspectives future opportunities exciting field.

Language: Английский

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Anions intercalated two-dimension high entropy layered metal oxides for enhanced hydrogen storage in magnesium hydride

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159591 - 159591

Published: Jan. 1, 2025

Language: Английский

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Entropy engineering activation of UiO-66 for boosting catalytic transfer hydrogenation

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Jan. 3, 2025

High-entropy metal-organic frameworks (HE-MOFs) hold promise as versatile materials, yet current rare examples are confined to low-valence elements in the fourth period, constraining their design and optimization for diverse applications. Here, a novel high-entropy, defect-rich small-sized (32 nm) UiO-66 (ZrHfCeSnTi HE-UiO-66) has been synthesized first time, leveraging increased configurational entropy achieve high tolerance doping with metal ions. The lattice distortion of HE-UiO-66 induces exposure nodes create coordination unsaturated sites concentration 322.4 μmol/g, which increases abundance Lewis acid-base sites, thereby achieving significant improvement performance catalytic transfer hydrogenation (CTH) reaction. Systematic investigation manifests that special electronic structure enhances interaction bonding substrate molecules reduces energy barrier hydrogen process. Our approach offers new strategy constructing MOFs. offer potential but existing largely limited restricting various defect-rich, framework enhance hydrogenation.

Language: Английский

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