摘要
A novel sandwich\|type compound, Na\-\{12\}\[Fe\-4(H\-2O)\-2(As\-2W\-\{15\}O\-\{56\})\-2\]\538H\-2O(denoted as Fe\-4As\-4W\-\{30\}) was synthesized. The compound was well characterized by means of IR, UV\|Vis, \{\{\}\+\{183\}W NMR\} and elemental analyses. Redox electrochemistry of the compound has been studied in acid buffer solutions using cyclic voltammetry(CV). The compound containing multilayer films has been fabricated on the 4\|aminobenzoic acid(4\|ABA) modified glassy carbon electrode(GCE) surface by alternate deposition with a quaternized poly(4\|vinylpyridine) partially completed with \[Os(bpy)\-2Cl\]\+\{2+/-\}(denoted as QPVP\|Os). CV, X\|ray photoelectron spectroscopy(XPS) and UV\|Vis spectroscopy were used to characterize the as\|prepared multilayer films. It is proved that the multilayer films are uniform and stable. The electrocatalytic activities of the multilayer films were investigated on the reduction of two substrates of important analytical interest, NO\+-\-2 and H\-2O\-2.
A novel sandwich\|type compound, Na\-\{12\}\[Fe\-4(H\-2O)\-2(As\-2W\-\{15\}O\-\{56\})\-2\]\538H\-2O(denoted as Fe\-4As\-4W\-\{30\}) was synthesized. The compound was well characterized by means of IR, UV\|Vis, \{\{\}\+\{183\}W NMR\} and elemental analyses. Redox electrochemistry of the compound has been studied in acid buffer solutions using cyclic voltammetry(CV). The compound containing multilayer films has been fabricated on the 4\|aminobenzoic acid(4\|ABA) modified glassy carbon electrode(GCE) surface by alternate deposition with a quaternized poly(4\|vinylpyridine) partially completed with \[Os(bpy)\-2Cl\]\+\{2+/-\}(denoted as QPVP\|Os). CV, X\|ray photoelectron spectroscopy(XPS) and UV\|Vis spectroscopy were used to characterize the as\|prepared multilayer films. It is proved that the multilayer films are uniform and stable. The electrocatalytic activities of the multilayer films were investigated on the reduction of two substrates of important analytical interest, NO\+-\-2 and H\-2O\-2.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2002年第3期472-474,共3页
Chemical Journal of Chinese Universities
基金
国家自然科学基金 (批准号 :2 983 5 12 0和 2 9875 0 2 8)资助