Kinetics of dehydrogenation of <i>n</i>-heptane over GaPt supported catalytically active liquid metal solutions (SCALMS)

Sebastian, Oshin; Al-Shaibani, Asem; Taccardi, Nicola; Haumann, Marco; Wasserscheid, Peter

doi:10.1039/d3re00490b

React. Chem. Eng.

2024

DOI: 10.1039/d3re00490b

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Kinetics of dehydrogenation of n-heptane over GaPt supported catalytically active liquid metal solutions (SCALMS)

Oshin Sebastian,

Asem Al-Shaibani,

Nicola Taccardi

et al.

Abstract: The concept of Supported Catalytically Active Liquid Metal Solutions (SCALMS) was explored for the catalytic dehydrogenation of n-heptane.

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Cited by 3 publications

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The Liquid Metal Age: A Transition From Hg to Ga

Handschuh‐Wang,

Wang,

Gancarz

et al. 2024

Advanced Materials

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This review offers an illuminating journey through the historical evolution and modern‐day applications of liquid metals, presenting a comprehensive view of their significance in diverse fields. Tracing the trajectory from mercury applications to contemporary innovations, the paper explores their pivotal role in industry and research. The analysis spans electrical switches, mechanical applications, electrodes, chemical synthesis, energy storage, thermal transport, electronics, and biomedicine. Each section examines the intricacies of liquid metal integration, elucidating their contributions to technological advancements and societal progress. Moreover, the review critically appraises the challenges and prospects inherent in liquid metal applications, addressing issues of recycling, corrosion management, device stability, economic feasibility, translational hurdles, and market dynamics. By delving into these complexities, the paper advances scholarly understanding and offers actionable insights for researchers, engineers, and policymakers. It aims to catalyze innovation, foster interdisciplinary collaboration, and promote liquid metal‐enabled solutions for societal needs. Through its comprehensive analysis and forward‐looking perspective, this review serves as a guide for navigating the landscape of liquid metal applications, bridging historical legacies with contemporary challenges, and highlighting the transformative potential of liquid metals in shaping future technologies.

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The Liquid Metal Age: A Transition From Hg to Ga

Handschuh‐Wang,

Wang,

Gancarz

et al. 2024

Advanced Materials

View full text Add to dashboard Cite

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Low-Temperature Chemical Vapor Deposition of 2D Materials via Single-Atom Catalysis on Liquid Bimetallic Substrates: A Case Study of Graphene Synthesis on Liquid Tin Alloys

Saedi,

Salehi,

Hajiahmadi

et al. 2024

J. Phys. Chem. C

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Current synthesis and transfer methods of 2D materials (2DMs) have fallen short of realizing their promised high-end applications on an industrial scale. In addressing this gap, the method of chemical vapor deposition (CVD) on a liquid substrate envisions cost-effective continuous synthesis and transfer of single-crystal 2DMs. For practical and economical reasons, unlocking effective low-temperature 2DM growth on a liquid catalyst would be a major milestone. Here, we explore the potential of heterogeneous liquid-phase single-atom catalysts (LSACs) for low-temperature 2DM synthesis, specifically the CVD of graphene on liquid Sn–M alloys (M representing a solute metal, acting as LSACs). Through systematic screening over the periodic table based on physical properties and quantum chemical calculations, we identified liquid Sn–Ni (92:8 atom %) as a promising candidate. Experimental studies in the 1000–1200 K temperature range have revealed clear evidence of catalytic activity by the solute Ni single atoms in the liquid alloy for graphene synthesis. These results indicate the scientific richness and technological opportunities that LSACs can provide for efficient mass production of 2DMs.

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Controlled Nanopore Sizes in Supraparticle Supports for Enhanced Propane Dehydrogenation with GaPt SCALMS Catalysts

Madubuko,

Sultan,

Carl

et al. 2024

ACS Appl. Nano Mater.

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The efficient immobilization of GaPt liquid metal alloy droplets onto tailored supports improves catalytic performance by preventing coalescence and subsequent loss of active surface area. Herein, we use tailored supraparticle (SP) supports with controlled nanopores to systematically study the influence of pore sizes on the catalytic stability of GaPt supported catalytically active liquid metal solution (SCALMS) in propane dehydrogenation (PDH). Initially, GaPt droplets were prepared via an atom-efficient and scalable ultrasonication method with recycling loops to yield droplets <300 nm. Subsequently, these droplets were immobilized onto SiO 2 -based SPs with controlled pore sizes ranging from 45 to 320 nm. Catalytic evaluations in PDH revealed that GaPt immobilized on SPs with larger pores demonstrated superior stability over 15 h time-on-stream evidenced by reduced deactivation rates from 0.046 to 0.026 h −1 . Nanocomputed tomography and identical location SEM confirmed the successful immobilization of GaPt droplets within the interstitial sites formed by the primary particles constituting the SPs. These remained unchanged before and after the catalytic reaction, demonstrating efficient coalescence prevention. Our findings underscore the importance of support pore size engineering for improving the stability of GaPt SCALMS catalysts and highlight, particularly, the high potential of using SPs in this context.

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Kinetics of dehydrogenation of n-heptane over GaPt supported catalytically active liquid metal solutions (SCALMS)

Abstract: The concept of Supported Catalytically Active Liquid Metal Solutions (SCALMS) was explored for the catalytic dehydrogenation of n-heptane.

Cited by 3 publications

References 39 publications

The Liquid Metal Age: A Transition From Hg to Ga

The Liquid Metal Age: A Transition From Hg to Ga

Low-Temperature Chemical Vapor Deposition of 2D Materials via Single-Atom Catalysis on Liquid Bimetallic Substrates: A Case Study of Graphene Synthesis on Liquid Tin Alloys

Controlled Nanopore Sizes in Supraparticle Supports for Enhanced Propane Dehydrogenation with GaPt SCALMS Catalysts

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