兰州大学机构库 >化学化工学院
Nanostructured Lateral Boryl Substitution Conjugated Donor-Acceptor Oligomers for Visible-Light-Driven Hydrogen Production
Wei, Qiuyu1; Yao, Xiaoqiang2; Zhang, Qianqian1,2; Yan, Pengji3; Ru, Chenglong4; Li, Chunfeng1; Tao, Chunlan1; Wang, Wei1; Han, Dongfang1; Han, Dongxue1; Niu, Li1; Qin, Dongdong1; Pan, XB(潘效波)4
2021-06
Source PublicationSMALL
ISSN1613-6810
Volume17Issue:23
AbstractPoor charge separation is the main factor that limits the photocatalytic hydrogen generation efficiency of organic conjugated polymers. In this work, a series of linear donor-acceptor (D-A) type oligomers are synthesized by a palladium-catalyzed Sonogashira-Hagihara coupling of electron-deficient diborane unit and different dihalide substitution sulfur functionalized monomers. Such diborane-based A unit exerts great impact on the resulting oligomers, including distinct semiconductor characters with isolated lowest unoccupied molecular orbital (LUMO) orbits locating in diborane-containing fragment, and elevated LUMO level higher than water reduction potential. Relative to A-A type counterpart, the enhanced dipole polarization effect in D-A oligomers facilitates separation of photogenerated charge carriers, as evidenced by notably prolonged electron lifetime. Owing to pi-pi stacking of rigid backbone, the oligomers can aggregate into an interesting 2D semicrystalline nanosheet (approximate to 2.74 nm), which is rarely reported in linear polymeric photocatalysts prepared by similar carbon-carbon coupling reaction. Despite low surface area (30.3 m(2) g(-1)), such ultrathin nanosheet D-A oligomer offers outstanding visible light (lambda > 420 nm) hydrogen evolution rate of 833 mu mol g(-1) h(-1), 14 times greater than its A-A analogue (61 mu mol g(-1) h(-1)). The study highlights the great potential of using boron element to construct D-A type oligomers for efficient photocatalytic hydrogen generation.
Keywordboryl substitutiondonor–acceptorhydrogen generationnanosheetsoligomer photocatalystvisible light
PublisherWILEY-V C H VERLAG GMBH
DOI10.1002/smll.202100132
Indexed ByEI ; SCOPUS ; SCIE
Language英语
WOS Research AreaChemistryScience & Technology - Other TopicsMaterials SciencePhysics
WOS SubjectChemistry, MultidisciplinaryChemistry, PhysicalNanoscience & NanotechnologyMaterials Science, MultidisciplinaryPhysics, AppliedPhysics, Condensed Matter
WOS IDWOS:000642641300001
Original Document TypeArticle
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/450208
Collection化学化工学院
Affiliation1.Guangzhou Univ, Coll Chem & Chem Engn, Ctr Adv Analyt Sci, Guangzhou 510006, Peoples R China;
2.Northwest Normal Univ, Coll Chem & Chem Engn, Lanzhou 730070, Peoples R China;
3.Hexi Univ, Key Lab Hexi Corridor Resources Utilizat Gansu Un, Coll Chem & Chem Engn, Zhangye 734000, Peoples R China;
4.Lanzhou Univ, Coll Chem & Chem Engn, Key Lab Nonferrous Met Chem & Resources, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China
First Author AffilicationCollege of Chemistry and Chemical Engineering
Recommended Citation
GB/T 7714
Wei, Qiuyu,Yao, Xiaoqiang,Zhang, Qianqian,et al. Nanostructured Lateral Boryl Substitution Conjugated Donor-Acceptor Oligomers for Visible-Light-Driven Hydrogen Production[J]. SMALL,2021,17(23).
APA Wei, Qiuyu.,Yao, Xiaoqiang.,Zhang, Qianqian.,Yan, Pengji.,Ru, Chenglong.,...&Pan, Xiaobo.(2021).Nanostructured Lateral Boryl Substitution Conjugated Donor-Acceptor Oligomers for Visible-Light-Driven Hydrogen Production.SMALL,17(23).
MLA Wei, Qiuyu,et al."Nanostructured Lateral Boryl Substitution Conjugated Donor-Acceptor Oligomers for Visible-Light-Driven Hydrogen Production".SMALL 17.23(2021).
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Altmetrics Score
Google Scholar
Similar articles in Google Scholar
[Wei, Qiuyu]'s Articles
[Yao, Xiaoqiang]'s Articles
[Zhang, Qianqian]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wei, Qiuyu]'s Articles
[Yao, Xiaoqiang]'s Articles
[Zhang, Qianqian]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wei, Qiuyu]'s Articles
[Yao, Xiaoqiang]'s Articles
[Zhang, Qianqian]'s Articles
Terms of Use
No data!
Social Bookmark/Share
No comment.
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.