Recent advances and challenges of double-atom catalysts in diverse environmental applications: A state-of-the-art review

Coordination Chemistry Reviews, Год журнала: 2025, Номер 532, С. 216545 - 216545

Опубликована: Фев. 19, 2025

Язык: Английский

---

MOF-Based Electrocatalysts: An Overview from the Perspective of Structural Design

Chemical Reviews, Год журнала: 2025, Номер unknown

Опубликована: Фев. 18, 2025

The electrocatalytic technique, as an efficient energy storage and conversion technology, has attracted significant attention to address exhaustion environmental pollution. Usually, the activity selectivity of reactions are largely dominated by dynamic process occurring on electrocatalysts. Therefore, high-performance electrocatalysts, which can dominate pathway barrier reactions, great significance for advancement technique. Metal-organic frameworks (MOFs), emerging crystalline porous materials, present structural component advantages including well-defined structure, high surface area, large porosity, diverse components, easy tailorability, demonstrating fantastic potential precise fabrication In this Review, strategies in electrocatalysts based MOF-related materials specifically introduced from aspects catalytic site design microenvironment modulation around sites. Furthermore, representative progress achieved various applications employing MOF-based is systematically summarized, with special emphasis MOFs performance optimization. Finally, remaining challenges future perspectives further highlighted.

Язык: Английский

---

Machine learning-driven molecular dynamics unveils a bulk phase transformation driving ammonia synthesis on barium hydride

Nature Communications, Год журнала: 2025, Номер 16(1)

Опубликована: Март 12, 2025

The modern view of industrial heterogeneous catalysis is evolving from the traditional static paradigm where catalyst merely provides active sites, to that a functional material in which dynamics plays crucial role. Using machine learning-driven molecular simulations, we confirm this picture for ammonia synthesis catalysed by BaH2. Recent experiments show system acts as highly efficient catalyst, but only when exposed first N2 and then H2 chemical looping process. Our simulations reveal N2, BaH2 undergoes profound change, transforming into superionic mixed compound, BaH2−2x(NH)x, characterized high mobility both hydrides imides. This transformation not limited surface involves entire catalyst. When compound second step process, readily formed released, process greatly facilitated ionic mobility. Once all nitrogen are hydrogenated, reverts its initial state, ready next cycle. microscopic analysis underlines dynamic nature does serve platform reactions, rather it entity evolves under reaction conditions. shifting paradigm. Here, authors reactions during synthesis,

Язык: Английский

---

Dynamic transformation of active sites in energy and environmental catalysis

Energy & Environmental Science, Год журнала: 2024, Номер 17(18), С. 6435 - 6481

Опубликована: Янв. 1, 2024

Active sites play a pivotal role in photo/electrocatalysis, particularly the transition from fossil fuels to clean, efficient and renewable energy sources.

Язык: Английский

---

Phase-Engineered MoSe₂/CeO₂ Composites for Room-Temperature Gas Sensing with a Drastic Discrimination of NH₃ and TEA Gases

ACS Sensors, Год журнала: 2024, Номер 9(8), С. 3994 - 4006

Опубликована: Июль 23, 2024

Detecting and distinguishing between hazardous gases with similar odors by using conventional sensor technology for safeguarding human health ensuring food safety are significant challenges. Bulky, costly, power-hungry devices, such as that used gas chromatography-mass spectrometry (GC-MS), widely employed sensing. Using a single chemiresistive semiconductor or electric nose (e-nose) to achieve this objective is difficult, mainly because of its selectivity issue. Thus, there need develop new materials tunable versatile sensing characteristics. Phase engineering two-dimensional better utilize their physiochemical properties has attracted considerable attention. Here, we show MoSe

Язык: Английский

---

Crystal plane regulation and heterostructure construction of ZnIn2S4/h-BN for boosting photocatalytic hydrogen evolution

Applied Surface Science, Год журнала: 2025, Номер unknown, С. 163017 - 163017

Опубликована: Март 1, 2025

Язык: Английский

---

Metastable-Phase Two-Dimensional Metal Oxides for Advanced Electrocatalysis

Chemistry of Materials, Год журнала: 2024, Номер 36(13), С. 6310 - 6320

Опубликована: Апрель 16, 2024

Electrocatalysis, such as water electrolysis and fuel cells, is the leading candidate for achieving carbon neutrality. The metastable-phase two-dimensional (2D) oxides enhance catalytic performances in electrocatalysis due to joint advantages of 2D structure metastable-phase, which are regarded some most advanced electrocatalytic materials, although they still at an early stage development materials. Herein, we summarize properties metal based on their singular structures first. Thereafter, analysis reviewed detail over representative nanomaterials, especially Subsequently, particularly emphasize applications Finally, discuss major challenges new opportunities emerging field oxides. work will not only provide a comprehensive understanding performance but also supply guidance designing electrocatalysts with excellent performance.

Язык: Английский

---

MOF-derived phase-selective synthesis of ln2O3 with appropriate surface atomic arrangement for CO2 photoreduction

Chemical Engineering Journal, Год журнала: 2024, Номер 501, С. 157513 - 157513

Опубликована: Ноя. 8, 2024

Язык: Английский

---

Tuning the Selectivity of Catalytic Nitrile Hydrogenation with Phase-Controlled Co Nanoparticles Prepared by Hydrosilane-Assisted Method

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(30), С. 20919 - 20929

Опубликована: Июль 18, 2024

Cobalt (Co) is a promising candidate to replace noble metals in the hydrogenation process, which widely employed chemical industry. Although catalytic performance for this reaction has been considered be significantly dependent on Co crystal phase, no satisfactory systematic studies have conducted, because it difficult synthesize metal nanoparticles that different crystalline structures with similar sizes. Here we report new method synthesis of cobalt using hydrosilane as reducing agent (hydrosilane-assisted method). This uses 1,3-butanediol and propylene glycol successfully prepare fcc hcp nanoparticles, respectively. These two types sizes surface areas. The exhibit higher than benzonitrile under mild conditions. present catalyst also effective highly selective benzyl amine production from without ammonia addition, whereas many systems require addition production. Mechanistic revealed fast formation primary prevention condensation secondary promote benzylamine over nanoparticles.

Язык: Английский

---

Performance and mechanism investigation of Cu loading and S vacancy synergistic promotion of MoS2 catalyzed low-temperature water gas shift reaction: Experimental and theoretical calculations

Chemical Engineering Journal, Год журнала: 2024, Номер 498, С. 155167 - 155167

Опубликована: Авг. 25, 2024

Язык: Английский

---