We have in vestigated the dynamic process of electroxidation of Fe(CN)at different electrode surface by usign in-situ time-resoved infrared spectra.The possible intermediates produced in the electroxidation process o...We have in vestigated the dynamic process of electroxidation of Fe(CN)at different electrode surface by usign in-situ time-resoved infrared spectra.The possible intermediates produced in the electroxidation process on platiinum electrode have been monitored and proposed.The effect of surface state on the time-resolved spectra of the electrode reaction has also been observed and discussed.展开更多
In the present paper, the electrochemical behavior of ergosterol has been investigated by in situ circular dichroism (CD) spectroelectrochemistry with long path-length thin layer cell. E-0 (1.02V), alpha n(alpha) (0.3...In the present paper, the electrochemical behavior of ergosterol has been investigated by in situ circular dichroism (CD) spectroelectrochemistry with long path-length thin layer cell. E-0 (1.02V), alpha n(alpha) (0.302) of the electroxidation process of ergosterol were obtained from the CD spectroelectrochemical data. The mechanism of the electroxidation process of ergosterol is suggested.展开更多
The ability to controlled introduction of defects, particularly twin defects in Pt-based nanocrystals （NCs） provides a possibility to regulate the performance of Pt-based nanocatalyst. However, because of the high i...The ability to controlled introduction of defects, particularly twin defects in Pt-based nanocrystals （NCs） provides a possibility to regulate the performance of Pt-based nanocatalyst. However, because of the high internal strain energy existed in twinned structures, the fabrication of defects in Pt-based NCs is sufficiently challenging. Here we demonstrate a ＂low-temperature interface-induced assembly＂ approach that provides precise control over Pt-Cu nanoparticles assembled at the hexadecylamine/water interface, yielding onion-like Pt-Cu NCs exposed a high density of twin defects. Moreover, a bending mechanism is proposed to elucidate the appearance of twin defects and lattice expanding （contraction） based on aberration corrected scanning transmission electron microscopy analysis. This work opens new routes to engineer defects in metal- based alloy NCs, enabling more opportunities in catalysis.展开更多
文摘We have in vestigated the dynamic process of electroxidation of Fe(CN)at different electrode surface by usign in-situ time-resoved infrared spectra.The possible intermediates produced in the electroxidation process on platiinum electrode have been monitored and proposed.The effect of surface state on the time-resolved spectra of the electrode reaction has also been observed and discussed.
文摘In the present paper, the electrochemical behavior of ergosterol has been investigated by in situ circular dichroism (CD) spectroelectrochemistry with long path-length thin layer cell. E-0 (1.02V), alpha n(alpha) (0.302) of the electroxidation process of ergosterol were obtained from the CD spectroelectrochemical data. The mechanism of the electroxidation process of ergosterol is suggested.
基金The authors wish to thank Mr. Chao Yang for valuable advices. This work was supported by the Foundation for the Author of National Excellent Doctoral Dissertation of P. R. China （No. 201321）, the Specialized Research Fund for the Doctoral Program of Higher Education （No. 20130002120013）, and the National Natural Science Foundation of China （Nos. 21521091, 21131004, 21390393, 21322107, 21325101, 21471089, and U1463202）.
文摘The ability to controlled introduction of defects, particularly twin defects in Pt-based nanocrystals （NCs） provides a possibility to regulate the performance of Pt-based nanocatalyst. However, because of the high internal strain energy existed in twinned structures, the fabrication of defects in Pt-based NCs is sufficiently challenging. Here we demonstrate a ＂low-temperature interface-induced assembly＂ approach that provides precise control over Pt-Cu nanoparticles assembled at the hexadecylamine/water interface, yielding onion-like Pt-Cu NCs exposed a high density of twin defects. Moreover, a bending mechanism is proposed to elucidate the appearance of twin defects and lattice expanding （contraction） based on aberration corrected scanning transmission electron microscopy analysis. This work opens new routes to engineer defects in metal- based alloy NCs, enabling more opportunities in catalysis.
