Autocatalytic Formation of High‐Entropy Alloy Nanoparticles
High‐entropy alloy (HEA) nanoparticles hold great promise as tunable catalysts. Despite the fact that alloy formation is typically difficult in oxygen‐rich environments, we found that Pt‐Ir‐Pd‐Rh‐Ru nanoparticles can be synthesized under benign low‐temperature solvothermal conditions. In situ X‐ray...
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| Veröffentlicht in: | Angewandte Chemie International Edition 2020-12, Vol.59 (49), p.21920-21924 |
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| creator | Broge, Nils L. N. Bondesgaard, Martin Søndergaard‐Pedersen, Frederik Roelsgaard, Martin Iversen, Bo Brummerstedt |
| description | High‐entropy alloy (HEA) nanoparticles hold great promise as tunable catalysts. Despite the fact that alloy formation is typically difficult in oxygen‐rich environments, we found that Pt‐Ir‐Pd‐Rh‐Ru nanoparticles can be synthesized under benign low‐temperature solvothermal conditions. In situ X‐ray scattering and transmission electron microscopy reveal the solvothermal formation mechanism of Pt‐Ir‐Pd‐Rh‐Ru nanoparticles. For the individual metal acetylacetonate precursors, formation of single metal nanoparticles takes place at temperatures spanning from ca. 150 °C for Pd to ca. 350 °C for Ir. However, for the mixture, homogenous Pt‐Ir‐Pd‐Rh‐Ru HEA nanoparticles can be obtained around 200 °C due to autocatalyzed metal reduction at the (111) facets of the forming crystallites. The autocatalytic formation mechanism suggests that many types of HEA nanocatalysts should accessible with scalable solvothermal reactions, thereby providing broad availability and tunability.
High‐entropy alloy (HEA) nanoparticles hold great promise as tunable catalysts, and surprisingly, Pt‐Ir‐Pd‐Rh‐Ru nanoparticles can be synthesized under benign low‐temperature solvothermal conditions. In situ X‐ray scattering and TEM reveal the solvothermal formation mechanism of Pt‐Ir‐Pd‐Rh‐Ru nanoparticles. The autocatalytic formation mechanism suggests that many types of HEA nanocatalysts should be accessible with scalable solvothermal reactions. |
| doi_str_mv | 10.1002/anie.202009002 |
| format | Article |
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High‐entropy alloy (HEA) nanoparticles hold great promise as tunable catalysts, and surprisingly, Pt‐Ir‐Pd‐Rh‐Ru nanoparticles can be synthesized under benign low‐temperature solvothermal conditions. In situ X‐ray scattering and TEM reveal the solvothermal formation mechanism of Pt‐Ir‐Pd‐Rh‐Ru nanoparticles. The autocatalytic formation mechanism suggests that many types of HEA nanocatalysts should be accessible with scalable solvothermal reactions.</description><edition>International ed. in English</edition><identifier>ISSN: 1433-7851</identifier><identifier>EISSN: 1521-3773</identifier><identifier>DOI: 10.1002/anie.202009002</identifier><language>eng</language><publisher>Weinheim: Wiley Subscription Services, Inc</publisher><subject>alloys ; autocatalysis ; Catalysts ; Crystallites ; Crystals ; Entropy ; Entropy of formation ; High entropy alloys ; Iridium ; Nanoalloys ; nanocatalysts ; Nanoparticles ; Palladium ; Platinum ; Reduction (metal working) ; Rhodium ; Ruthenium ; Transmission electron microscopy ; X-ray scattering</subject><ispartof>Angewandte Chemie International Edition, 2020-12, Vol.59 (49), p.21920-21924</ispartof><rights>2020 Wiley‐VCH GmbH</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4932-4f109496ba17acaeb928aecc9f14f46da3a7e7491242323b52e6e8d8275111343</citedby><cites>FETCH-LOGICAL-c4932-4f109496ba17acaeb928aecc9f14f46da3a7e7491242323b52e6e8d8275111343</cites><orcidid>0000-0001-6283-5634 ; 0000-0002-4632-1024</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fanie.202009002$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fanie.202009002$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids></links><search><creatorcontrib>Broge, Nils L. N.</creatorcontrib><creatorcontrib>Bondesgaard, Martin</creatorcontrib><creatorcontrib>Søndergaard‐Pedersen, Frederik</creatorcontrib><creatorcontrib>Roelsgaard, Martin</creatorcontrib><creatorcontrib>Iversen, Bo Brummerstedt</creatorcontrib><title>Autocatalytic Formation of High‐Entropy Alloy Nanoparticles</title><title>Angewandte Chemie International Edition</title><description>High‐entropy alloy (HEA) nanoparticles hold great promise as tunable catalysts. Despite the fact that alloy formation is typically difficult in oxygen‐rich environments, we found that Pt‐Ir‐Pd‐Rh‐Ru nanoparticles can be synthesized under benign low‐temperature solvothermal conditions. In situ X‐ray scattering and transmission electron microscopy reveal the solvothermal formation mechanism of Pt‐Ir‐Pd‐Rh‐Ru nanoparticles. For the individual metal acetylacetonate precursors, formation of single metal nanoparticles takes place at temperatures spanning from ca. 150 °C for Pd to ca. 350 °C for Ir. However, for the mixture, homogenous Pt‐Ir‐Pd‐Rh‐Ru HEA nanoparticles can be obtained around 200 °C due to autocatalyzed metal reduction at the (111) facets of the forming crystallites. The autocatalytic formation mechanism suggests that many types of HEA nanocatalysts should accessible with scalable solvothermal reactions, thereby providing broad availability and tunability.
High‐entropy alloy (HEA) nanoparticles hold great promise as tunable catalysts, and surprisingly, Pt‐Ir‐Pd‐Rh‐Ru nanoparticles can be synthesized under benign low‐temperature solvothermal conditions. In situ X‐ray scattering and TEM reveal the solvothermal formation mechanism of Pt‐Ir‐Pd‐Rh‐Ru nanoparticles. The autocatalytic formation mechanism suggests that many types of HEA nanocatalysts should be accessible with scalable solvothermal reactions.</description><subject>alloys</subject><subject>autocatalysis</subject><subject>Catalysts</subject><subject>Crystallites</subject><subject>Crystals</subject><subject>Entropy</subject><subject>Entropy of formation</subject><subject>High entropy alloys</subject><subject>Iridium</subject><subject>Nanoalloys</subject><subject>nanocatalysts</subject><subject>Nanoparticles</subject><subject>Palladium</subject><subject>Platinum</subject><subject>Reduction (metal working)</subject><subject>Rhodium</subject><subject>Ruthenium</subject><subject>Transmission electron microscopy</subject><subject>X-ray scattering</subject><issn>1433-7851</issn><issn>1521-3773</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNqF0D9LAzEYBvAgCtbq6nzg4nI1_y65DA5Haa1Q6qJzSNOcpqSXM7lDbvMj-Bn9JKZUFFyc8gZ-z8vLA8AlghMEIb5RjTUTDDGEIn2PwAgVGOWEc3KcZkpIzssCnYKzGLcJlCVkI3Bb9Z3XqlNu6KzO5j7sVGd9k_k6W9jnl8_3j1nTBd8OWeWcH7KVanyrQsLOxHNwUisXzcX3OwZP89njdJEvH-7up9Uy11QQnNMaQUEFWyvElVZmLXCpjNaiRrSmbKOI4oZTgTDFBJN1gQ0z5abEvEAIEUrG4Pqwtw3-tTexkzsbtXFONcb3UWJKGBGUI5zo1R-69X1o0nVJMcIY4UwkNTkoHXyMwdSyDXanwiARlPs25b5N-dNmCohD4M06M_yjZbW6n_1mvwBu-3gx</recordid><startdate>20201201</startdate><enddate>20201201</enddate><creator>Broge, Nils L. N.</creator><creator>Bondesgaard, Martin</creator><creator>Søndergaard‐Pedersen, Frederik</creator><creator>Roelsgaard, Martin</creator><creator>Iversen, Bo Brummerstedt</creator><general>Wiley Subscription Services, Inc</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TM</scope><scope>K9.</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0001-6283-5634</orcidid><orcidid>https://orcid.org/0000-0002-4632-1024</orcidid></search><sort><creationdate>20201201</creationdate><title>Autocatalytic Formation of High‐Entropy Alloy Nanoparticles</title><author>Broge, Nils L. N. ; Bondesgaard, Martin ; Søndergaard‐Pedersen, Frederik ; Roelsgaard, Martin ; Iversen, Bo Brummerstedt</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4932-4f109496ba17acaeb928aecc9f14f46da3a7e7491242323b52e6e8d8275111343</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>alloys</topic><topic>autocatalysis</topic><topic>Catalysts</topic><topic>Crystallites</topic><topic>Crystals</topic><topic>Entropy</topic><topic>Entropy of formation</topic><topic>High entropy alloys</topic><topic>Iridium</topic><topic>Nanoalloys</topic><topic>nanocatalysts</topic><topic>Nanoparticles</topic><topic>Palladium</topic><topic>Platinum</topic><topic>Reduction (metal working)</topic><topic>Rhodium</topic><topic>Ruthenium</topic><topic>Transmission electron microscopy</topic><topic>X-ray scattering</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Broge, Nils L. N.</creatorcontrib><creatorcontrib>Bondesgaard, Martin</creatorcontrib><creatorcontrib>Søndergaard‐Pedersen, Frederik</creatorcontrib><creatorcontrib>Roelsgaard, Martin</creatorcontrib><creatorcontrib>Iversen, Bo Brummerstedt</creatorcontrib><collection>CrossRef</collection><collection>Nucleic Acids Abstracts</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>MEDLINE - Academic</collection><jtitle>Angewandte Chemie International Edition</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Broge, Nils L. N.</au><au>Bondesgaard, Martin</au><au>Søndergaard‐Pedersen, Frederik</au><au>Roelsgaard, Martin</au><au>Iversen, Bo Brummerstedt</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Autocatalytic Formation of High‐Entropy Alloy Nanoparticles</atitle><jtitle>Angewandte Chemie International Edition</jtitle><date>2020-12-01</date><risdate>2020</risdate><volume>59</volume><issue>49</issue><spage>21920</spage><epage>21924</epage><pages>21920-21924</pages><issn>1433-7851</issn><eissn>1521-3773</eissn><abstract>High‐entropy alloy (HEA) nanoparticles hold great promise as tunable catalysts. Despite the fact that alloy formation is typically difficult in oxygen‐rich environments, we found that Pt‐Ir‐Pd‐Rh‐Ru nanoparticles can be synthesized under benign low‐temperature solvothermal conditions. In situ X‐ray scattering and transmission electron microscopy reveal the solvothermal formation mechanism of Pt‐Ir‐Pd‐Rh‐Ru nanoparticles. For the individual metal acetylacetonate precursors, formation of single metal nanoparticles takes place at temperatures spanning from ca. 150 °C for Pd to ca. 350 °C for Ir. However, for the mixture, homogenous Pt‐Ir‐Pd‐Rh‐Ru HEA nanoparticles can be obtained around 200 °C due to autocatalyzed metal reduction at the (111) facets of the forming crystallites. The autocatalytic formation mechanism suggests that many types of HEA nanocatalysts should accessible with scalable solvothermal reactions, thereby providing broad availability and tunability.
High‐entropy alloy (HEA) nanoparticles hold great promise as tunable catalysts, and surprisingly, Pt‐Ir‐Pd‐Rh‐Ru nanoparticles can be synthesized under benign low‐temperature solvothermal conditions. In situ X‐ray scattering and TEM reveal the solvothermal formation mechanism of Pt‐Ir‐Pd‐Rh‐Ru nanoparticles. The autocatalytic formation mechanism suggests that many types of HEA nanocatalysts should be accessible with scalable solvothermal reactions.</abstract><cop>Weinheim</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1002/anie.202009002</doi><tpages>5</tpages><edition>International ed. in English</edition><orcidid>https://orcid.org/0000-0001-6283-5634</orcidid><orcidid>https://orcid.org/0000-0002-4632-1024</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | alloys autocatalysis Catalysts Crystallites Crystals Entropy Entropy of formation High entropy alloys Iridium Nanoalloys nanocatalysts Nanoparticles Palladium Platinum Reduction (metal working) Rhodium Ruthenium Transmission electron microscopy X-ray scattering |
| title | Autocatalytic Formation of High‐Entropy Alloy Nanoparticles |
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