Herein,we report the synthesis of a new diiron azadithiolate compound {(μ-SCH_(2))_(2)N(C_(6)H_(4)CH_(2)CH_(2)OH-4)}Fe_(2)(CO)_(6) (1) and especially its covalent attachment onto benzoxy-functionalized single-walled ...Herein,we report the synthesis of a new diiron azadithiolate compound {(μ-SCH_(2))_(2)N(C_(6)H_(4)CH_(2)CH_(2)OH-4)}Fe_(2)(CO)_(6) (1) and especially its covalent attachment onto benzoxy-functionalized single-walled carbon nanotubes (f-SWCNTs) to construct the first example of diiron azadithiolate clusters supported on carbon nanotubes (1-f-SWCNTs) for efficient electrocatalytic proton reduction to H_(2) in an aqueous medium.The structure and morphology of the as-prepared hybrid 1-f-SWCNTs have been well characterized by Fourier transform infrared spectroscopy (FT-IR),Raman spectroscopy,X-ray photoelectron spectroscopy (XPS),and transmission electron microscopy (TEM).Notably,the 1-f-SWCNT hybrid absorbed on the cheap glassy carbon electrode exhibits a much more positive reduction potential (Epc) in pure water relative to an organic solvent (MeCN) and an outstanding turnover frequency (TOF) of 9444 s^(−1) for H_(2) production in the presence of 0.2 N aqueous H_(2)SO_(4) as a proton source under electrochemical conditions.展开更多
Highly luminescent and color-tunable stable colloidal suspensions of molecular alloys are reported.They are produced via a green synthetic route in ethanol medium.The mean hydrodynamic diameter of the colloids is abou...Highly luminescent and color-tunable stable colloidal suspensions of molecular alloys are reported.They are produced via a green synthetic route in ethanol medium.The mean hydrodynamic diameter of the colloids is about 140 nm and the colloidal suspensions are stable for more than a month.The optical properties of the molecular alloy suspensions and their bulk counterparts are extremely similar.To the best of our knowledge,this series of suspensions constitutes the first example of hetero-lanthanide coordination polymer molecular alloy (LnCPMA)-based colloidal suspensions with sizeable luminescence intensity and a wide range of accessible colors.This high color tunability paves the road toward tagging of technical liquids.We also demonstrate that they can be used in ink-jet printers for luminescent anti-counterfeiting tagging.展开更多
基金the National Natural Science Foundation of China(no.21301160)the Scientific Research Foundation for the Returned Overseas Chinese Scholars of Shanxi Province,and the Natural Science Foundation of Shanxi Province(no.201701D121035 and 201801D221147)for the financial support of this work.
文摘Herein,we report the synthesis of a new diiron azadithiolate compound {(μ-SCH_(2))_(2)N(C_(6)H_(4)CH_(2)CH_(2)OH-4)}Fe_(2)(CO)_(6) (1) and especially its covalent attachment onto benzoxy-functionalized single-walled carbon nanotubes (f-SWCNTs) to construct the first example of diiron azadithiolate clusters supported on carbon nanotubes (1-f-SWCNTs) for efficient electrocatalytic proton reduction to H_(2) in an aqueous medium.The structure and morphology of the as-prepared hybrid 1-f-SWCNTs have been well characterized by Fourier transform infrared spectroscopy (FT-IR),Raman spectroscopy,X-ray photoelectron spectroscopy (XPS),and transmission electron microscopy (TEM).Notably,the 1-f-SWCNT hybrid absorbed on the cheap glassy carbon electrode exhibits a much more positive reduction potential (Epc) in pure water relative to an organic solvent (MeCN) and an outstanding turnover frequency (TOF) of 9444 s^(−1) for H_(2) production in the presence of 0.2 N aqueous H_(2)SO_(4) as a proton source under electrochemical conditions.
文摘Highly luminescent and color-tunable stable colloidal suspensions of molecular alloys are reported.They are produced via a green synthetic route in ethanol medium.The mean hydrodynamic diameter of the colloids is about 140 nm and the colloidal suspensions are stable for more than a month.The optical properties of the molecular alloy suspensions and their bulk counterparts are extremely similar.To the best of our knowledge,this series of suspensions constitutes the first example of hetero-lanthanide coordination polymer molecular alloy (LnCPMA)-based colloidal suspensions with sizeable luminescence intensity and a wide range of accessible colors.This high color tunability paves the road toward tagging of technical liquids.We also demonstrate that they can be used in ink-jet printers for luminescent anti-counterfeiting tagging.
