Hai-Dan Wang, Xing-Fang Wang, Fang Su, Jian-Sheng Li, Lan-Cui Zhang, Xiao-Jing Sang and Zai-Ming Zhu
{"title":"羧乙基锡和过渡金属共功能化钨锑酸盐与聚吡咯复合用于增强电催化甲醇氧化†","authors":"Hai-Dan Wang, Xing-Fang Wang, Fang Su, Jian-Sheng Li, Lan-Cui Zhang, Xiao-Jing Sang and Zai-Ming Zhu","doi":"10.1039/C8DT05118F","DOIUrl":null,"url":null,"abstract":"<p >Carboxyethyltin and first-row transition metals (TMs) were firstly introduced into trivacant Keggin-type tungstoantimonate in an aqueous solution, leading to the formation of four crystalline organic–inorganic hybrid sandwich-type polyoxometalates (POMs), formulated as Na<small><sub>10?<em>x</em>?<em>y</em></sub></small>K<small><sub><em>y</em></sub></small>H<small><sub><em>x</em></sub></small>[((TM)(H<small><sub>2</sub></small>O)<small><sub>3</sub></small>)<small><sub>2</sub></small>(Sn(CH<small><sub>2</sub></small>)<small><sub>2</sub></small>COO)<small><sub>2</sub></small>(SbW<small><sub>9</sub></small>O<small><sub>33</sub></small>)<small><sub>2</sub></small>]·<em>n</em>H<small><sub>2</sub></small>O (<strong>SbW<small><sub>9</sub></small>-TM-SnR</strong>, TM = Mn, Co, Ni, Zn; <em>x</em> = 1, 1, 0, 0; <em>y</em> = 0, 5, 5, 2; <em>n</em> = 18, 24, 24, 22, respectively). <strong>SbW<small><sub>9</sub></small>-TM-SnR</strong> exhibit high catalytic ability for the oxidation of cyclohexanol. Meanwhile, <strong>SbW<small><sub>9</sub></small>-TM-SnR</strong> were composited with polypyrrole (PPy) through an electropolymerization process, forming PPy-<strong>SbW<small><sub>9</sub></small>-TM-SnR</strong>, on which platinum (Pt) was further electro-deposited to prepare PPy-<strong>SbW<small><sub>9</sub></small>-TM-SnR</strong>/Pt for electrocatalytic methanol (CH<small><sub>3</sub></small>OH) oxidation in acid solution. The composition and morphology of PPy-<strong>SbW<small><sub>9</sub></small>-TM-SnR</strong>/Pt were determined by IR, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS). The electrochemical experimental results show that <strong>SbW<small><sub>9</sub></small>-TM-SnR</strong> and PPy obviously enhance the electrocatalytic and anti-intoxication abilities of Pt, and the highest peak current density of 0.87 mA cm<small><sup>?2</sup></small>, corresponding to 1.85 and 1.43 times higher than those of pure Pt and PPy/Pt electrodes respectively, is acquired for the PPy-<strong>SbW<small><sub>9</sub></small>-Ni-SnR</strong>/Pt composite electrode. These findings may enlarge the application of PPy and POMs in the electrocatalytic field.</p>","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":null,"pages":null},"PeriodicalIF":3.5000,"publicationDate":"2019-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1039/C8DT05118F","citationCount":"5","resultStr":"{\"title\":\"Carboxyethyltin and transition metal co-functionalized tungstoantimonates composited with polypyrrole for enhanced electrocatalytic methanol oxidation†\",\"authors\":\"Hai-Dan Wang, Xing-Fang Wang, Fang Su, Jian-Sheng Li, Lan-Cui Zhang, Xiao-Jing Sang and Zai-Ming Zhu\",\"doi\":\"10.1039/C8DT05118F\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Carboxyethyltin and first-row transition metals (TMs) were firstly introduced into trivacant Keggin-type tungstoantimonate in an aqueous solution, leading to the formation of four crystalline organic–inorganic hybrid sandwich-type polyoxometalates (POMs), formulated as Na<small><sub>10?<em>x</em>?<em>y</em></sub></small>K<small><sub><em>y</em></sub></small>H<small><sub><em>x</em></sub></small>[((TM)(H<small><sub>2</sub></small>O)<small><sub>3</sub></small>)<small><sub>2</sub></small>(Sn(CH<small><sub>2</sub></small>)<small><sub>2</sub></small>COO)<small><sub>2</sub></small>(SbW<small><sub>9</sub></small>O<small><sub>33</sub></small>)<small><sub>2</sub></small>]·<em>n</em>H<small><sub>2</sub></small>O (<strong>SbW<small><sub>9</sub></small>-TM-SnR</strong>, TM = Mn, Co, Ni, Zn; <em>x</em> = 1, 1, 0, 0; <em>y</em> = 0, 5, 5, 2; <em>n</em> = 18, 24, 24, 22, respectively). <strong>SbW<small><sub>9</sub></small>-TM-SnR</strong> exhibit high catalytic ability for the oxidation of cyclohexanol. Meanwhile, <strong>SbW<small><sub>9</sub></small>-TM-SnR</strong> were composited with polypyrrole (PPy) through an electropolymerization process, forming PPy-<strong>SbW<small><sub>9</sub></small>-TM-SnR</strong>, on which platinum (Pt) was further electro-deposited to prepare PPy-<strong>SbW<small><sub>9</sub></small>-TM-SnR</strong>/Pt for electrocatalytic methanol (CH<small><sub>3</sub></small>OH) oxidation in acid solution. The composition and morphology of PPy-<strong>SbW<small><sub>9</sub></small>-TM-SnR</strong>/Pt were determined by IR, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS). The electrochemical experimental results show that <strong>SbW<small><sub>9</sub></small>-TM-SnR</strong> and PPy obviously enhance the electrocatalytic and anti-intoxication abilities of Pt, and the highest peak current density of 0.87 mA cm<small><sup>?2</sup></small>, corresponding to 1.85 and 1.43 times higher than those of pure Pt and PPy/Pt electrodes respectively, is acquired for the PPy-<strong>SbW<small><sub>9</sub></small>-Ni-SnR</strong>/Pt composite electrode. These findings may enlarge the application of PPy and POMs in the electrocatalytic field.</p>\",\"PeriodicalId\":71,\"journal\":{\"name\":\"Dalton Transactions\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.5000,\"publicationDate\":\"2019-01-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1039/C8DT05118F\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Dalton Transactions\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://pubs.rsc.org/en/content/articlelanding/2019/dt/c8dt05118f\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, INORGANIC & NUCLEAR\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Dalton Transactions","FirstCategoryId":"92","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2019/dt/c8dt05118f","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
Carboxyethyltin and transition metal co-functionalized tungstoantimonates composited with polypyrrole for enhanced electrocatalytic methanol oxidation†
Carboxyethyltin and first-row transition metals (TMs) were firstly introduced into trivacant Keggin-type tungstoantimonate in an aqueous solution, leading to the formation of four crystalline organic–inorganic hybrid sandwich-type polyoxometalates (POMs), formulated as Na10?x?yKyHx[((TM)(H2O)3)2(Sn(CH2)2COO)2(SbW9O33)2]·nH2O (SbW9-TM-SnR, TM = Mn, Co, Ni, Zn; x = 1, 1, 0, 0; y = 0, 5, 5, 2; n = 18, 24, 24, 22, respectively). SbW9-TM-SnR exhibit high catalytic ability for the oxidation of cyclohexanol. Meanwhile, SbW9-TM-SnR were composited with polypyrrole (PPy) through an electropolymerization process, forming PPy-SbW9-TM-SnR, on which platinum (Pt) was further electro-deposited to prepare PPy-SbW9-TM-SnR/Pt for electrocatalytic methanol (CH3OH) oxidation in acid solution. The composition and morphology of PPy-SbW9-TM-SnR/Pt were determined by IR, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS). The electrochemical experimental results show that SbW9-TM-SnR and PPy obviously enhance the electrocatalytic and anti-intoxication abilities of Pt, and the highest peak current density of 0.87 mA cm?2, corresponding to 1.85 and 1.43 times higher than those of pure Pt and PPy/Pt electrodes respectively, is acquired for the PPy-SbW9-Ni-SnR/Pt composite electrode. These findings may enlarge the application of PPy and POMs in the electrocatalytic field.
期刊介绍:
Dalton Transactions is a journal for all areas of inorganic chemistry, which encompasses the organometallic, bioinorganic and materials chemistry of the elements, with applications including synthesis, catalysis, energy conversion/storage, electrical devices and medicine. Dalton Transactions welcomes high-quality, original submissions in all of these areas and more, where the advancement of knowledge in inorganic chemistry is significant.