Synthesis of colloidal dispersions of rhodium nanoparticles under high temperatures and high pressures
Colloidal dispersions of rhodium (Rh) nanoparticles have been synthesized by the reduction of Rh ions (III) in high-temperature and high-pressure water, ethanol, or water–ethanol mixture under the existence of the protective polymer of poly( N-vinyl-2-pyrrolidone). The possibility of the regulation...
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| Veröffentlicht in: | Journal of colloid and interface science 2005-12, Vol.292 (1), p.113-121 |
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| creator | Harada, Masafumi Abe, Daisuke Kimura, Yoshifumi |
| description | Colloidal dispersions of rhodium (Rh) nanoparticles have been synthesized by the reduction of Rh ions (III) in high-temperature and high-pressure water, ethanol, or water–ethanol mixture under the existence of the protective polymer of poly(
N-vinyl-2-pyrrolidone). The possibility of the regulation of the particle size and size distribution has been tested under several solvents at various temperatures and pressures. At 473 K and 25 MPa, particularly, concentrated colloidal dispersions of Rh particles of
2.5
±
0.5
nm
were synthesized from the ionic solution of ethanol ([Rh]
=
15 mM) within a few seconds. Dilute colloidal dispersions of Rh particles were also synthesized from the dilute ionic solution ([Rh]
=
1.5 mM) with a diameter of
2.0
±
0.4
nm
. From the water solution, Rh particles tended to form aggregates, especially for the lower concentration solution. In the case of solutions in water and ethanol mixture, the average diameter of Rh particles tended to be larger than in ethanol solution, and their distribution became broad.
[Display omitted] TEM image and size distribution of the Rh colloidal solutions produced from 15 mM Rh and 15 g dm
−3 PVP with a flow rate of 3 cm
3 min
−1 at 25 MPa and 200 °C in the mixture of water and ethanol solvent. |
| doi_str_mv | 10.1016/j.jcis.2005.05.081 |
| format | Article |
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N-vinyl-2-pyrrolidone). The possibility of the regulation of the particle size and size distribution has been tested under several solvents at various temperatures and pressures. At 473 K and 25 MPa, particularly, concentrated colloidal dispersions of Rh particles of
2.5
±
0.5
nm
were synthesized from the ionic solution of ethanol ([Rh]
=
15 mM) within a few seconds. Dilute colloidal dispersions of Rh particles were also synthesized from the dilute ionic solution ([Rh]
=
1.5 mM) with a diameter of
2.0
±
0.4
nm
. From the water solution, Rh particles tended to form aggregates, especially for the lower concentration solution. In the case of solutions in water and ethanol mixture, the average diameter of Rh particles tended to be larger than in ethanol solution, and their distribution became broad.
[Display omitted] TEM image and size distribution of the Rh colloidal solutions produced from 15 mM Rh and 15 g dm
−3 PVP with a flow rate of 3 cm
3 min
−1 at 25 MPa and 200 °C in the mixture of water and ethanol solvent.</description><identifier>ISSN: 0021-9797</identifier><identifier>EISSN: 1095-7103</identifier><identifier>DOI: 10.1016/j.jcis.2005.05.081</identifier><identifier>PMID: 16024035</identifier><identifier>CODEN: JCISA5</identifier><language>eng</language><publisher>San Diego, CA: Elsevier Inc</publisher><subject>Chemistry ; Colloidal dispersions ; Colloidal state and disperse state ; Colloids - chemical synthesis ; Colloids - chemistry ; Continuous synthesis ; Ethanol - chemistry ; Exact sciences and technology ; EXAFS ; General and physical chemistry ; High temperature and high pressure ; Microscopy, Electron, Transmission ; Nanoparticles - chemistry ; Oxidation-Reduction ; Particle Size ; Physical and chemical studies. Granulometry. Electrokinetic phenomena ; Platinum - chemistry ; Polymers - chemistry ; Pressure ; Pyrrolidinones - chemistry ; Rhodium - chemistry ; Rhodium nanoparticles ; Sensitivity and Specificity ; Spectrometry, X-Ray Emission ; Spectrophotometry, Ultraviolet ; Supercritical fluids ; Surface Properties ; Temperature ; Water - chemistry</subject><ispartof>Journal of colloid and interface science, 2005-12, Vol.292 (1), p.113-121</ispartof><rights>2005 Elsevier Inc.</rights><rights>2006 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c450t-aa368b6e281638eda03f13c5649e97d321be5f9262d6b89996c3653fbe9e36aa3</citedby><cites>FETCH-LOGICAL-c450t-aa368b6e281638eda03f13c5649e97d321be5f9262d6b89996c3653fbe9e36aa3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0021979705006272$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=17251162$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/16024035$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Harada, Masafumi</creatorcontrib><creatorcontrib>Abe, Daisuke</creatorcontrib><creatorcontrib>Kimura, Yoshifumi</creatorcontrib><title>Synthesis of colloidal dispersions of rhodium nanoparticles under high temperatures and high pressures</title><title>Journal of colloid and interface science</title><addtitle>J Colloid Interface Sci</addtitle><description>Colloidal dispersions of rhodium (Rh) nanoparticles have been synthesized by the reduction of Rh ions (III) in high-temperature and high-pressure water, ethanol, or water–ethanol mixture under the existence of the protective polymer of poly(
N-vinyl-2-pyrrolidone). The possibility of the regulation of the particle size and size distribution has been tested under several solvents at various temperatures and pressures. At 473 K and 25 MPa, particularly, concentrated colloidal dispersions of Rh particles of
2.5
±
0.5
nm
were synthesized from the ionic solution of ethanol ([Rh]
=
15 mM) within a few seconds. Dilute colloidal dispersions of Rh particles were also synthesized from the dilute ionic solution ([Rh]
=
1.5 mM) with a diameter of
2.0
±
0.4
nm
. From the water solution, Rh particles tended to form aggregates, especially for the lower concentration solution. In the case of solutions in water and ethanol mixture, the average diameter of Rh particles tended to be larger than in ethanol solution, and their distribution became broad.
[Display omitted] TEM image and size distribution of the Rh colloidal solutions produced from 15 mM Rh and 15 g dm
−3 PVP with a flow rate of 3 cm
3 min
−1 at 25 MPa and 200 °C in the mixture of water and ethanol solvent.</description><subject>Chemistry</subject><subject>Colloidal dispersions</subject><subject>Colloidal state and disperse state</subject><subject>Colloids - chemical synthesis</subject><subject>Colloids - chemistry</subject><subject>Continuous synthesis</subject><subject>Ethanol - chemistry</subject><subject>Exact sciences and technology</subject><subject>EXAFS</subject><subject>General and physical chemistry</subject><subject>High temperature and high pressure</subject><subject>Microscopy, Electron, Transmission</subject><subject>Nanoparticles - chemistry</subject><subject>Oxidation-Reduction</subject><subject>Particle Size</subject><subject>Physical and chemical studies. Granulometry. Electrokinetic phenomena</subject><subject>Platinum - chemistry</subject><subject>Polymers - chemistry</subject><subject>Pressure</subject><subject>Pyrrolidinones - chemistry</subject><subject>Rhodium - chemistry</subject><subject>Rhodium nanoparticles</subject><subject>Sensitivity and Specificity</subject><subject>Spectrometry, X-Ray Emission</subject><subject>Spectrophotometry, Ultraviolet</subject><subject>Supercritical fluids</subject><subject>Surface Properties</subject><subject>Temperature</subject><subject>Water - chemistry</subject><issn>0021-9797</issn><issn>1095-7103</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kEFr3DAQhUVpaTZJ_0AOwZf25q1GWskW5FJC2xQCPbQ5C1kaZ7XYkiPZgfz7yt0lvRUGhnn63kM8Qq6AboGC_HzYHqzPW0ap2K7TwhuyAapE3QDlb8mGUga1alRzRs5zPlAKIIR6T85AUrajXGxI_-slzHvMPlexr2wchuidGSrn84Qp-xj-PqR9dH4Zq2BCnEyavR0wV0twmKq9f9xXM46FN_OSim6CO6pTufIqXZJ3vRkyfjjtC_Lw7evv27v6_uf3H7df7mu7E3SujeGy7SSyFiRv0RnKe-BWyJ1C1TjOoEPRKyaZk12rlJKWS8H7DhVyWdwX5NMxd0rxacE869Fni8NgAsYla9k2O8FaWUB2BG2KOSfs9ZT8aNKLBqrXdvVBr-3qtV29TgvFdH1KX7oR3T_Lqc4CfDwBJlsz9MmENeOVa5gAkKxwN0cOSxfPHpPO1mOw6HxCO2sX_f_-8QfoYJpO</recordid><startdate>20051201</startdate><enddate>20051201</enddate><creator>Harada, Masafumi</creator><creator>Abe, Daisuke</creator><creator>Kimura, Yoshifumi</creator><general>Elsevier Inc</general><general>Elsevier</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20051201</creationdate><title>Synthesis of colloidal dispersions of rhodium nanoparticles under high temperatures and high pressures</title><author>Harada, Masafumi ; Abe, Daisuke ; Kimura, Yoshifumi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c450t-aa368b6e281638eda03f13c5649e97d321be5f9262d6b89996c3653fbe9e36aa3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Chemistry</topic><topic>Colloidal dispersions</topic><topic>Colloidal state and disperse state</topic><topic>Colloids - chemical synthesis</topic><topic>Colloids - chemistry</topic><topic>Continuous synthesis</topic><topic>Ethanol - chemistry</topic><topic>Exact sciences and technology</topic><topic>EXAFS</topic><topic>General and physical chemistry</topic><topic>High temperature and high pressure</topic><topic>Microscopy, Electron, Transmission</topic><topic>Nanoparticles - chemistry</topic><topic>Oxidation-Reduction</topic><topic>Particle Size</topic><topic>Physical and chemical studies. Granulometry. Electrokinetic phenomena</topic><topic>Platinum - chemistry</topic><topic>Polymers - chemistry</topic><topic>Pressure</topic><topic>Pyrrolidinones - chemistry</topic><topic>Rhodium - chemistry</topic><topic>Rhodium nanoparticles</topic><topic>Sensitivity and Specificity</topic><topic>Spectrometry, X-Ray Emission</topic><topic>Spectrophotometry, Ultraviolet</topic><topic>Supercritical fluids</topic><topic>Surface Properties</topic><topic>Temperature</topic><topic>Water - chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Harada, Masafumi</creatorcontrib><creatorcontrib>Abe, Daisuke</creatorcontrib><creatorcontrib>Kimura, Yoshifumi</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of colloid and interface science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Harada, Masafumi</au><au>Abe, Daisuke</au><au>Kimura, Yoshifumi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synthesis of colloidal dispersions of rhodium nanoparticles under high temperatures and high pressures</atitle><jtitle>Journal of colloid and interface science</jtitle><addtitle>J Colloid Interface Sci</addtitle><date>2005-12-01</date><risdate>2005</risdate><volume>292</volume><issue>1</issue><spage>113</spage><epage>121</epage><pages>113-121</pages><issn>0021-9797</issn><eissn>1095-7103</eissn><coden>JCISA5</coden><abstract>Colloidal dispersions of rhodium (Rh) nanoparticles have been synthesized by the reduction of Rh ions (III) in high-temperature and high-pressure water, ethanol, or water–ethanol mixture under the existence of the protective polymer of poly(
N-vinyl-2-pyrrolidone). The possibility of the regulation of the particle size and size distribution has been tested under several solvents at various temperatures and pressures. At 473 K and 25 MPa, particularly, concentrated colloidal dispersions of Rh particles of
2.5
±
0.5
nm
were synthesized from the ionic solution of ethanol ([Rh]
=
15 mM) within a few seconds. Dilute colloidal dispersions of Rh particles were also synthesized from the dilute ionic solution ([Rh]
=
1.5 mM) with a diameter of
2.0
±
0.4
nm
. From the water solution, Rh particles tended to form aggregates, especially for the lower concentration solution. In the case of solutions in water and ethanol mixture, the average diameter of Rh particles tended to be larger than in ethanol solution, and their distribution became broad.
[Display omitted] TEM image and size distribution of the Rh colloidal solutions produced from 15 mM Rh and 15 g dm
−3 PVP with a flow rate of 3 cm
3 min
−1 at 25 MPa and 200 °C in the mixture of water and ethanol solvent.</abstract><cop>San Diego, CA</cop><pub>Elsevier Inc</pub><pmid>16024035</pmid><doi>10.1016/j.jcis.2005.05.081</doi><tpages>9</tpages></addata></record> |
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| subjects | Chemistry Colloidal dispersions Colloidal state and disperse state Colloids - chemical synthesis Colloids - chemistry Continuous synthesis Ethanol - chemistry Exact sciences and technology EXAFS General and physical chemistry High temperature and high pressure Microscopy, Electron, Transmission Nanoparticles - chemistry Oxidation-Reduction Particle Size Physical and chemical studies. Granulometry. Electrokinetic phenomena Platinum - chemistry Polymers - chemistry Pressure Pyrrolidinones - chemistry Rhodium - chemistry Rhodium nanoparticles Sensitivity and Specificity Spectrometry, X-Ray Emission Spectrophotometry, Ultraviolet Supercritical fluids Surface Properties Temperature Water - chemistry |
| title | Synthesis of colloidal dispersions of rhodium nanoparticles under high temperatures and high pressures |
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