12680-36-3Relevant articles and documents
Hybrid architecture of rhodium oxide nanofibers and ruthenium oxide nanowires for electrocatalysts
Kim, Yu Lim,Ha, Yejin,Lee, Nam-Suk,Kim, Joo Gon,Baik, Jeong Min,Lee, Chongmok,Yoon, Kyunghwan,Lee, Youngmi,Kim, Myung Hwa
, p. 574 - 580 (2016)
We report the synthesis and electrochemical performances of the hybrid architecture of rhodium oxide (Rh2O3) nanofibers (NF) and highly single crystalline RuO2 nanowires (NW) by combining the electrospinning process and a simple recrystallization process. The amorphous Ru(OH)3·xH2O precursors at relatively low temperature were efficiently transformed into highly single crystalline RuO2 nanowires with the tetragonal rutile structure on electrospun Rh2O3 nanofibers. Pure Rh2O3 NF and hybrid RuO2 NW-Rh2O3 NF exhibited different electroactivities toward H2O2 electrochemical reaction: Rh2O3 NF facilitates the H2O2 oxidation vs. hybrid RuO2 NW-Rh2O3 NF promotes H2O2 reduction more favorably. The H2O2 reduction free from O2 reduction interference at RuO2 NW-Rh2O3 NF is advantageous and finds the feasibility for selective H2O2 detection in various samples. Furthermore, RuO2 NW-Rh2O3 NF generated a greatly higher current induced by H2O2 reduction (i.e., enhanced sensitivity to H2O2) than bare Rh2O3 NF.
Preparation of intermetallic phases of noble metals and tin by thermolysis of metal-organic coordination polymers
Rehbein, Marcus,Fischer, R.Dieter,Epple, Matthias
, p. 143 - 149 (2008/10/08)
Intermetallic phases of noble metals (Ru, Rh, Pd, Os, Ir, Pt and Au) were prepared by controlled thermolysis of coordination polymers on the basis of cyanometallates and trimethyltin units (super-prussian blue derivatives). The thermal reaction was carried out under different atmospheres: oxidizing, inert and reducing, upto 1000 °C. Under oxidizing conditions, intimate mixtures of oxides (SnO2 with RuO2, Rh2O3, IrO2, Pt3O4, respectively) were obtained that could be reduced in a second step to the pure noble metals and intermetallic phases incorporating tin (Ru3Sn7, RhSn2, IrSn4, Ir5Sn7, IrSn2, PdSn2, Pd20Sn13, Pd3Sn2, PtSn, PtSn4, Au5Sn, AuSn were all detected). Under reducing conditions, mixtures of metals and intermetallic phases were obtained that could subsequently be oxidized by further thermal treatment to noble metals on SnO2. This offers a new synthetic pathway to such intermetallics and to noble metals on SnO2 supports.