原位气相4D-STEM在钯纳米立方氢化物形成过程中的应变映射

IF 9.1 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Nano Letters Pub Date : 2025-03-25 DOI:10.1021/acs.nanolett.5c00702

Marta Perxés Perich, Jan-Willem Lankman, Claudia J. Keijzer, Jessi E. S. van der Hoeven

{"title":"原位气相4D-STEM在钯纳米立方氢化物形成过程中的应变映射","authors":"Marta Perxés Perich, Jan-Willem Lankman, Claudia J. Keijzer, Jessi E. S. van der Hoeven","doi":"10.1021/acs.nanolett.5c00702","DOIUrl":null,"url":null,"abstract":"The uptake and release of hydrogen are key parameters for hydrogen storage materials. Lattice strain offers a powerful way to tune hydride formation in metal nanoparticles. However, the role of strain on hydride formation is difficult to assess on a single nanoparticle level due to the lack of in situ characterization tools to quantify strain in the presence of a gas. Here, we achieve a dynamic, in situ study on the reversible hydride formation in individual palladium nanocubes by applying 4D scanning transmission electron microscopy (4D-STEM) in the presence of 1 bar H2 and quantitatively assess the lattice strain with subnanometer resolution. Upon hydride formation at 125 °C, the Pd lattice expands by ∼3.1% and relaxes back upon hydrogen desorption at 200 °C. Our in situ 4D-STEM approach is relevant to a wide range of nanoparticle systems and applications, including catalyst- and gas-sensing materials.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"35 1","pages":""},"PeriodicalIF":9.1000,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"In Situ Gas-Phase 4D-STEM for Strain Mapping during Hydride Formation in Palladium Nanocubes\",\"authors\":\"Marta Perxés Perich, Jan-Willem Lankman, Claudia J. Keijzer, Jessi E. S. van der Hoeven\",\"doi\":\"10.1021/acs.nanolett.5c00702\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The uptake and release of hydrogen are key parameters for hydrogen storage materials. Lattice strain offers a powerful way to tune hydride formation in metal nanoparticles. However, the role of strain on hydride formation is difficult to assess on a single nanoparticle level due to the lack of in situ characterization tools to quantify strain in the presence of a gas. Here, we achieve a dynamic, in situ study on the reversible hydride formation in individual palladium nanocubes by applying 4D scanning transmission electron microscopy (4D-STEM) in the presence of 1 bar H2 and quantitatively assess the lattice strain with subnanometer resolution. Upon hydride formation at 125 °C, the Pd lattice expands by ∼3.1% and relaxes back upon hydrogen desorption at 200 °C. Our in situ 4D-STEM approach is relevant to a wide range of nanoparticle systems and applications, including catalyst- and gas-sensing materials.\",\"PeriodicalId\":53,\"journal\":{\"name\":\"Nano Letters\",\"volume\":\"35 1\",\"pages\":\"\"},\"PeriodicalIF\":9.1000,\"publicationDate\":\"2025-03-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nano Letters\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1021/acs.nanolett.5c00702\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nano Letters","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1021/acs.nanolett.5c00702","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

摘要

氢的吸收和释放是储氢材料的关键参数。晶格应变提供了一种调节金属纳米颗粒中氢化物形成的有效方法。然而，应变对氢化物形成的作用很难在单个纳米颗粒水平上评估，因为缺乏原位表征工具来量化气体存在下的应变。在这里，我们通过应用4D扫描透射电子显微镜（4D- stem）在1 bar H2存在下实现了单个钯纳米立方中可逆氢化物形成的动态原位研究，并以亚纳米分辨率定量评估了晶格应变。在125℃氢化物形成时，Pd晶格膨胀约3.1%，并在200℃氢解吸时松弛。我们的原位4D-STEM方法与广泛的纳米颗粒系统和应用相关，包括催化剂和气敏材料。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

In Situ Gas-Phase 4D-STEM for Strain Mapping during Hydride Formation in Palladium Nanocubes

查看原文本刊更多论文

In Situ Gas-Phase 4D-STEM for Strain Mapping during Hydride Formation in Palladium Nanocubes

The uptake and release of hydrogen are key parameters for hydrogen storage materials. Lattice strain offers a powerful way to tune hydride formation in metal nanoparticles. However, the role of strain on hydride formation is difficult to assess on a single nanoparticle level due to the lack of in situ characterization tools to quantify strain in the presence of a gas. Here, we achieve a dynamic, in situ study on the reversible hydride formation in individual palladium nanocubes by applying 4D scanning transmission electron microscopy (4D-STEM) in the presence of 1 bar H₂ and quantitatively assess the lattice strain with subnanometer resolution. Upon hydride formation at 125 °C, the Pd lattice expands by ∼3.1% and relaxes back upon hydrogen desorption at 200 °C. Our in situ 4D-STEM approach is relevant to a wide range of nanoparticle systems and applications, including catalyst- and gas-sensing materials.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Nano Letters 工程技术-材料科学：综合

CiteScore

16.80

自引率

2.80%

发文量

1182

审稿时长

1.4 months

期刊介绍： Nano Letters serves as a dynamic platform for promptly disseminating original results in fundamental, applied, and emerging research across all facets of nanoscience and nanotechnology. A pivotal criterion for inclusion within Nano Letters is the convergence of at least two different areas or disciplines, ensuring a rich interdisciplinary scope. The journal is dedicated to fostering exploration in diverse areas, including: - Experimental and theoretical findings on physical, chemical, and biological phenomena at the nanoscale - Synthesis, characterization, and processing of organic, inorganic, polymer, and hybrid nanomaterials through physical, chemical, and biological methodologies - Modeling and simulation of synthetic, assembly, and interaction processes - Realization of integrated nanostructures and nano-engineered devices exhibiting advanced performance - Applications of nanoscale materials in living and environmental systems Nano Letters is committed to advancing and showcasing groundbreaking research that intersects various domains, fostering innovation and collaboration in the ever-evolving field of nanoscience and nanotechnology.