Improved hydrogen detection in SnO2-based materials using CuxPd bimetallic catalyst DOI
Li Wang,

Shaohai Wu,

Weijiang Gan

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 94, P. 113 - 123

Published: Nov. 11, 2024

Language: Английский

Understanding the Dynamic Evolution of Active Sites among Single Atoms, Clusters, and Nanoparticles DOI Open Access

Hongchen Yang,

Pengfei Duan, Zechao Zhuang

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

Abstract Catalysis remains a cornerstone of chemical research, with the active sites catalysts being crucial for their functionality. Identifying sites, particularly during reaction process, is elucidating relationship between catalyst's structure and its catalytic property. However, dynamic evolution within heterogeneous metal presents substantial challenge accurately pinpointing real sites. The advent in situ operando characterization techniques has illuminated path toward understanding changes offering robust scientific evidence to support rational design catalysts. There pressing need comprehensive review that systematically explores among single atoms, clusters, nanoparticles as utilizing techniques. This aims delineate effects various factors on nanoparticles. Moreover, several are elaborated emphases tracking linking them properties. Finally, it discusses challenges future perspectives identifying process advancing

Language: Английский

Citations

1
Dynamic recycling behavior of Cu/Zn-based electrodes in electrochemical CO2 reduction DOI
Seon Young Hwang, Gaeun Yun, So Young Kim

et al.

Applied Surface Science, Journal Year: 2024, Volume and Issue: 670, P. 160628 - 160628

Published: June 30, 2024

Language: Английский

Citations

5
Diversity of copper-containing nanoparticles and their influence on plant growth and development DOI
А. I. Perfileva, Б. Г. Сухов, Т. В. Конькова

et al.

Plant Physiology and Biochemistry, Journal Year: 2025, Volume and Issue: unknown, P. 109575 - 109575

Published: Jan. 1, 2025

Language: Английский

Citations

0
Operando TEM study of a working copper catalyst during ethylene oxidation DOI Creative Commons

Wenqian Yu,

Shengnan Yue, Minghe Yang

et al.

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

Published: Feb. 27, 2025

Active catalysts are typically metastable, and their surface state depends on the gas-phase chemical potential reaction kinetics. To gain relevant insights into structure-performance relationships, it is essential to investigate under operational conditions. Here, we use operando TEM combining real-time observations with online mass spectrometry (MS) study a Cu catalyst during ethylene oxidation. We identify three distinct regimes characterized by varying structures states that show different selectivities temperature, elucidate pathways aid of theoretical calculations. Our findings reveal quasi-static Cu2O at low temperatures selective towards oxide (EO) acetaldehyde (AcH) via an oxometallacycle (OMC) pathway. In dynamic Cu0/Cu2O oscillation regime medium temperatures, partially reduced strained oxides decrease activation energies associated partial At high predominantly Cu0, covered monolayer Cu2O. While Cu0 extremely efficient in dehydrogenation eventual combustion, favors direct EO formation. These results challenge conclusions drawn from ultra-high vacuum studies suggested metallic copper would be epoxidation highlight need for realistic Investigating working conditions crucial understanding relationships. authors utilize transmission electron microscopy density functional theory calculations explore correlations

Language: Английский

Citations

0
In situ and operando transmission electron microscopy for the synthesis, fundamental understanding and catalytic applications of nanoalloys DOI Creative Commons

Damien Alloyeau,

Nathaly Ortiz Peña, Guillaume Wang

et al.

Advances in Physics X, Journal Year: 2025, Volume and Issue: 10(1)

Published: March 24, 2025

In line with the paradigm of nanoscience, developing functional nanoalloys for catalytic applications requires a thorough understanding correlations between their synthesis, structure, properties, and performance. Over last two decades, progresses in situ operando transmission electron microscopy (TEM) has revolutionized way to meet this challenge by providing unparalleled observations nanomaterial dynamics formation application media. The atomic scale resolution chemical sensitivity TEM analyses liquid or gaseous media controlled composition temperature are shedding new light on nanoalloys' nucleation growth mechanisms, simultaneous kinetic thermodynamic effects that dictate structural evolution transformations under conditions. Through review, we show opportunities challenges situ/operando rationalizing synthesis

Language: Английский

Citations

0
Harnessing Zn-volatility for compositional tuning in PtZn nanoalloy catalysts DOI
Bingqing Yao, Chaokai Xu, Yaxin Tang

et al.

Nano Today, Journal Year: 2025, Volume and Issue: 63, P. 102746 - 102746

Published: April 6, 2025

Language: Английский

Citations

0
Charge Redistribution of Mo-Incorporated Fe2Ni2N Customizes Potential-Determining Step for Highly Selective Electroreduction of Nitrobenzene to Azoxybenzene DOI
Jiaxin Li,

Ganceng Yang,

Yanqing Jiao

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125358 - 125358

Published: April 1, 2025

Language: Английский

Citations

0
Improved hydrogen detection in SnO2-based materials using CuxPd bimetallic catalyst DOI
Li Wang,

Shaohai Wu,

Weijiang Gan

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 94, P. 113 - 123

Published: Nov. 11, 2024

Language: Английский

Citations

0