{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,5]],"date-time":"2026-04-05T16:30:25Z","timestamp":1775406625048,"version":"3.50.1"},"reference-count":23,"publisher":"Wiley","license":[{"start":{"date-parts":[[2014,1,1]],"date-time":"2014-01-01T00:00:00Z","timestamp":1388534400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"funder":[{"DOI":"10.13039\/501100003093","name":"Ministry of Higher Education, Malaysia","doi-asserted-by":"publisher","award":["UM-MOHE UM.C\/625\/1\/HIR\/MOHE\/SC\/07"],"award-info":[{"award-number":["UM-MOHE UM.C\/625\/1\/HIR\/MOHE\/SC\/07"]}],"id":[{"id":"10.13039\/501100003093","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["The Scientific World Journal"],"published-print":{"date-parts":[[2014]]},"abstract":"<jats:p>The values of the relative counterion (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M1\"><mml:mrow><mml:mi>X<\/mml:mi><\/mml:mrow><\/mml:math>) binding constant<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M2\"><mml:mrow><mml:msubsup><mml:mrow><mml:mi>R<\/mml:mi><\/mml:mrow><mml:mrow><mml:mi>X<\/mml:mi><\/mml:mrow><mml:mrow><mml:mtext>Br<\/mml:mtext><\/mml:mrow><\/mml:msubsup><\/mml:mrow><\/mml:math>(=<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M3\"><mml:msub><mml:mrow><mml:mi>K<\/mml:mi><\/mml:mrow><mml:mrow><mml:mi>X<\/mml:mi><\/mml:mrow><\/mml:msub><mml:mo>\/<\/mml:mo><mml:msub><mml:mrow><mml:mi>K<\/mml:mi><\/mml:mrow><mml:mrow><mml:mtext>Br<\/mml:mtext><\/mml:mrow><\/mml:msub><\/mml:math>, where<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M4\"><mml:mrow><mml:msub><mml:mrow><mml:mi>K<\/mml:mi><\/mml:mrow><mml:mrow><mml:mi>X<\/mml:mi><\/mml:mrow><\/mml:msub><\/mml:mrow><\/mml:math>and<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M5\"><mml:mrow><mml:msub><mml:mrow><mml:mi>K<\/mml:mi><\/mml:mrow><mml:mrow><mml:mtext>Br<\/mml:mtext><\/mml:mrow><\/mml:msub><\/mml:mrow><\/mml:math>represent cetyltrimethylammonium bromide, CTABr, micellar binding constants of<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M6\"><mml:mrow><mml:msup><mml:mrow><mml:mi>X<\/mml:mi><\/mml:mrow><mml:mrow><mml:mi>v<\/mml:mi><mml:mo>-<\/mml:mo><\/mml:mrow><\/mml:msup><\/mml:mrow><\/mml:math>(in non-spherical micelles),<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M7\"><mml:mi>v<\/mml:mi><mml:mo>=<\/mml:mo><mml:mn>1,2<\/mml:mn><\/mml:math>, and Br<jats:sup>\u2212<\/jats:sup>(in spherical micelles)) are 58, 68, 127, and 125 for<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M8\"><mml:msup><mml:mrow><mml:mi>X<\/mml:mi><\/mml:mrow><mml:mrow><mml:mi>v<\/mml:mi><mml:mo>\u2212<\/mml:mo><\/mml:mrow><\/mml:msup><mml:mo>=<\/mml:mo><mml:msup><mml:mrow><mml:mn mathvariant=\"bold\">1<\/mml:mn><\/mml:mrow><mml:mrow><mml:mo mathvariant=\"bold\">\u2212<\/mml:mo><\/mml:mrow><\/mml:msup><mml:mo mathvariant=\"bold\">,\u2009<\/mml:mo><mml:msup><mml:mrow><mml:mn mathvariant=\"bold\">1<\/mml:mn><\/mml:mrow><mml:mrow><mml:mn mathvariant=\"normal\">2<\/mml:mn><mml:mo>\u2212<\/mml:mo><\/mml:mrow><\/mml:msup><mml:mo mathvariant=\"bold\">,\u2009<\/mml:mo><mml:msup><mml:mrow><mml:mn mathvariant=\"bold\">2<\/mml:mn><\/mml:mrow><mml:mrow><mml:mo mathvariant=\"bold\">\u2212<\/mml:mo><\/mml:mrow><\/mml:msup><\/mml:math>, and<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M9\"><mml:mrow><mml:msup><mml:mrow><mml:mn mathvariant=\"bold\">2<\/mml:mn><\/mml:mrow><mml:mrow><mml:mn mathvariant=\"normal\">2<\/mml:mn><mml:mo>-<\/mml:mo><\/mml:mrow><\/mml:msup><\/mml:mrow><\/mml:math>, respectively. The values of 15\u2009mM CTABr\/[<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M10\"><mml:msub><mml:mrow><mml:mtext>Na<\/mml:mtext><\/mml:mrow><mml:mrow><mml:mi>v<\/mml:mi><\/mml:mrow><\/mml:msub><mml:mi>X<\/mml:mi><\/mml:math>] nanoparticles-catalyzed apparent second-order rate constants for piperidinolysis of ionized phenyl salicylate at 35\u00b0C are 0.417, 0.488, 0.926, and 0.891\u2009M<jats:sup>\u22121<\/jats:sup>\u2009s<jats:sup>\u22121<\/jats:sup>for<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M11\"><mml:msub><mml:mrow><mml:mtext>Na<\/mml:mtext><\/mml:mrow><mml:mrow><mml:mi>v<\/mml:mi><\/mml:mrow><\/mml:msub><mml:mi>X<\/mml:mi><\/mml:math>= Na<jats:bold>1<\/jats:bold>, Na<jats:sub>2<\/jats:sub><jats:bold>1<\/jats:bold>, Na<jats:bold>2<\/jats:bold>, and Na<jats:sub>2<\/jats:sub><jats:bold>2<\/jats:bold>, respectively. Almost entire catalytic effect of nanoparticles catalyst is due to the ability of nonreactive counterions,<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M12\"><mml:mrow><mml:msup><mml:mrow><mml:mi>X<\/mml:mi><\/mml:mrow><mml:mrow><mml:mi>v<\/mml:mi><mml:mo>-<\/mml:mo><\/mml:mrow><\/mml:msup><\/mml:mrow><\/mml:math>, to expel reactive counterions,<jats:bold>3<\/jats:bold><jats:sup>\u2212<\/jats:sup>, from nanoparticles to the bulk water phase.<\/jats:p>","DOI":"10.1155\/2014\/604139","type":"journal-article","created":{"date-parts":[[2014,11,13]],"date-time":"2014-11-13T16:02:21Z","timestamp":1415894541000},"page":"1-7","source":"Crossref","is-referenced-by-count":4,"title":["Kinetics and Mechanism of Nanoparticles-Catalyzed Piperidinolysis of Anionic Phenyl Salicylate"],"prefix":"10.1155","volume":"2014","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5867-9050","authenticated-orcid":true,"given":"Norazizah Abd.","family":"Razak","sequence":"first","affiliation":[{"name":"Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M. Niyaz","family":"Khan","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","reference":[{"key":"1","doi-asserted-by":"publisher","DOI":"10.1021\/ja3047206"},{"issue":"4","key":"2","doi-asserted-by":"crossref","first-page":"111","DOI":"10.1021\/ar50136a001","volume":"12","year":"1979","journal-title":"Accounts of Chemical Research"},{"key":"3","year":"1975"},{"key":"4","year":"1982"},{"key":"5","series-title":"Surfactant Science Series","volume":"133","year":"2006"},{"key":"6","doi-asserted-by":"publisher","DOI":"10.1016\/S0065-3160(08)60169-0"},{"key":"7","first-page":"247","volume":"24","year":"1887","journal-title":"Archiv f\u00fcr Experimentelle Pathologie und Pharmakologie"},{"key":"8","doi-asserted-by":"publisher","DOI":"10.1039\/c1cp20538b"},{"key":"9","doi-asserted-by":"publisher","DOI":"10.1021\/cr0403741"},{"key":"10","doi-asserted-by":"publisher","DOI":"10.1021\/la062411k"},{"key":"11","doi-asserted-by":"publisher","DOI":"10.1021\/ie0110484"},{"key":"12","first-page":"1015","volume-title":"Micellar effects on reaction rates and equilibria","volume":"2","year":"1984"},{"key":"13","doi-asserted-by":"publisher","DOI":"10.1021\/la00025a015"},{"key":"14","first-page":"3178","volume-title":"Mechanism of catalysis in micellar systems","year":"2002"},{"key":"15","doi-asserted-by":"publisher","DOI":"10.1021\/la100863q"},{"issue":"8","key":"16","doi-asserted-by":"crossref","first-page":"1325","DOI":"10.1039\/b102567h","year":"2001","journal-title":"Journal of the Chemical Society, Perkin Transactions 2"},{"key":"17","doi-asserted-by":"publisher","DOI":"10.1021\/la020250o"},{"key":"19","doi-asserted-by":"publisher","DOI":"10.1016\/j.cis.2010.06.005"},{"key":"24","doi-asserted-by":"publisher","DOI":"10.1021\/jo991334d"},{"key":"20","doi-asserted-by":"publisher","DOI":"10.1021\/jp210467p"},{"key":"21","doi-asserted-by":"publisher","DOI":"10.1007\/PL00013755"},{"key":"22","doi-asserted-by":"publisher","DOI":"10.1021\/la00080a019"},{"key":"23","doi-asserted-by":"publisher","DOI":"10.1021\/j100074a027"}],"container-title":["The Scientific World Journal"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/downloads.hindawi.com\/journals\/tswj\/2014\/604139.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/tswj\/2014\/604139.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/tswj\/2014\/604139.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2017,6,22]],"date-time":"2017-06-22T20:07:58Z","timestamp":1498162078000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.hindawi.com\/journals\/tswj\/2014\/604139\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014]]},"references-count":23,"alternative-id":["604139","604139"],"URL":"https:\/\/doi.org\/10.1155\/2014\/604139","relation":{},"ISSN":["2356-6140","1537-744X"],"issn-type":[{"value":"2356-6140","type":"print"},{"value":"1537-744X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2014]]}}}