High-entropy spinel oxide (Fe0.2Mg0.2Mn0.1Al0.3Cr0.2)3O4 as a highly active and stable redox material for methane driven solar thermochemical water splitting

Han, Yujia; Tian, Mingzhen; Wang, Chaojie; Zong, Teng; Wang, Xinli

doi:10.1016/j.apcatb.2023.123096

“…Additionally, our extended testing over 50 cycles indicates long-term stability and potential for application, thereby enriching the current understanding beyond the state-of-the-art redox oxides in this field. 39,42,43…”

Section: Introductionmentioning

confidence: 99%

Manganese-based A-site high-entropy perovskite oxide for solar thermochemical hydrogen production

Liu,

Zhang,

Li

et al. 2024

J. Mater. Chem. A

11

0

View full text Add to dashboard Cite

show abstract

Thermal Effect Management via Entropy Variation Strategy to Improve the Catalyst Stability in Acetylene Hydrogenation

Zhang,

Wang

et al. 2024

Angewandte Chemie

0

View full text Add to dashboard Cite

The dynamic structure evolution of heterogeneous catalysts during reaction has gained great attention recently. However, controllably manipulating dynamic process and then feeding back catalyst design to extend the lifetime remains challenging. Herein, we proposed an entropy variation strategy to develop a dynamic CuZn‐Co/HEOs catalyst, in which the non‐active Co nano‐islands play a crucial role in controlling thermal effect via timely capturing and utilizing reaction heat generated on the adjacent active CuZn alloys, thus solving the deactivation problem of Cu‐based catalysts. Specifically, heat sensitive Co nano‐islands experienced an entropy increasing process of slowly redispersion during the reaction. Under such heat dissipation effect, the CuZn‐Co/HEOs catalyst exhibited 95.7% ethylene selectivity and amazing long‐term stability (>530 h) in the typical exothermic acetylene hydrogenation. Aiming at cultivating it as a catalyst with promising industrial potential, we proposed a simple regeneration approach via an entropy decreasing process.

show abstract

Thermal Effect Management via Entropy Variation Strategy to Improve the Catalyst Stability in Acetylene Hydrogenation

Zhang,

Wang

et al. 2024

Angew Chem Int Ed

0

View full text Add to dashboard Cite

The dynamic structure evolution of heterogeneous catalysts during reaction has gained great attention recently. However, controllably manipulating dynamic process and then feeding back catalyst design to extend the lifetime remains challenging. Herein, we proposed an entropy variation strategy to develop a dynamic CuZn‐Co/HEOs catalyst, in which the non‐active Co nano‐islands play a crucial role in controlling thermal effect via timely capturing and utilizing reaction heat generated on the adjacent active CuZn alloys, thus solving the deactivation problem of Cu‐based catalysts. Specifically, heat sensitive Co nano‐islands experienced an entropy increasing process of slowly redispersion during the reaction. Under such heat dissipation effect, the CuZn‐Co/HEOs catalyst exhibited 95.7% ethylene selectivity and amazing long‐term stability (>530 h) in the typical exothermic acetylene hydrogenation. Aiming at cultivating it as a catalyst with promising industrial potential, we proposed a simple regeneration approach via an entropy decreasing process.

show abstract

High-entropy spinel oxide (Fe0.2Mg0.2Mn0.1Al0.3Cr0.2)3O4 as a highly active and stable redox material for methane driven solar thermochemical water splitting

Cited by 21 publications

References 71 publications

Manganese-based A-site high-entropy perovskite oxide for solar thermochemical hydrogen production

Manganese-based A-site high-entropy perovskite oxide for solar thermochemical hydrogen production

Thermal Effect Management via Entropy Variation Strategy to Improve the Catalyst Stability in Acetylene Hydrogenation

Thermal Effect Management via Entropy Variation Strategy to Improve the Catalyst Stability in Acetylene Hydrogenation

Contact Info

Product

Resources

About