Electron transfer behavior of 1,2-diphenyl-o-carborane was investigated by cyclic voltammetry (CV). In the presence of 1,2-dibromo-1,2-diphenylethane, a significant catalytic current was observed. The macroscale electrocatalytic reduction of the dibromide using a catalytic amount (1 mol%) of the carborane mediator afforded the desired trans-stilbene in excellent yield.

Activity of La 0.8 Sr 0.2 FeO 3 (LSF) to the fuel electrode reaction in solid oxide reversible cells (SORCs) was investigated by using La 0.9 Sr 0.1 Ga 0.8 Mg 0.2 O 3 (LSGM) and Ba 0.6 La 0.4 CoO 3 (BLC) as electrolyte and air electrode, respectively. In electrolysis mode (SOEC), the LSF electrode exhibited small overpotential under the atmosphere without H 2 cofeeding; the current densities reached −1.42, −0.92, and −0.36 A/cm 2 at 1.4 V at 900, 800, and 700 °C, respectively, and the H 2 formation rate is well agreed with that estimated by Faraday's law. On the other hand, in the SOEC−SOFC reversible mode with the gas composition of 20% steam/20%H 2 /60% Ar, the maximum power densities of 0.42, 0.28, and 0.11 W/cm 2 were achieved at 900, 800, and 700 °C, respectively. In addition, the cyclic reversible operation was also investigated at 800 °C, and it was found that the cell showed high stability over 30 cycles. DC polarization measurement suggests that the exchange current density of LSF is 14 mA/cm 2 at 700 °C, which is almost the same as that of Ni-YSZ reported. X-ray diffraction (XRD) measurement and scanning electron microscopy (SEM) observation after the reversible measurement suggest that LSF is highly stable under SOEC−SOFC cyclic operation conditions. Therefore, LSF is promising as the fuel electrode for SORCs, although the conductivity is not sufficiently high as an electrode.

Novel carborane-triphenylamine dyad 1 was successfully prepared. The dyad exhibited the aggregation-induced emission (AIE) property in a solution of THF/water [1/99 (v/v)]. The cyclic voltammogram of 1 measured in tetrabutylammonium perchlorate (TBAP)/DMF using glassy carbon (GC) disk working electrode showed redox couples both at anodic side and cathodic side derived from redox responses of the triarylamine and the carborane moieties, respectively. The mediatory behavior of 1 for the anodic oxidation of benzyl alcohol was clearly confirmed by cyclic voltammetry in the presence of 2,6-lutidine. The catalytic current of 1 for the cathodic reduction of 1,2-dibromo-1,2-diphenylethane was also observed.

Cathodic hydroxylation of organoboron compounds was successfully performed under an oxygen atmosphere, producing the corresponding phenol derivatives with high selectivity and efficiency.

Effects of Ce 0.6 Mn 0.3 Fe 0.1 O 2-δ (CMF) anodic interlayer on power generation properties of microtubular SOFC using doped La 0.9 Sr 0.1 Ga 0.8 Mg 0.2 O 3 (LSGM) electrolyte were investigated. Two types of microtubular cells, which were used NiO-Ce 0.8 Gd 0.2 O 2-δ (GDC) cerment for anode porous substrate, were prepared with (A-cell) or without (B-cell) CMF interlayer by dip-coating method. The power generation properties of A-and B-cell sintered at 1623 K were measured. It was revealed that A-cell showed about 40% higher power density (1 W/cm 2 at 973 K) than that of B-cell at temperature from 873 to 973 K because of the decreased electrode polarization by introducing CMF anodic interlayer. It was found that the diffusion of Ni into LSGM/Ti-LDC (Ce 0.6 La 0.4 O 2-δ added with 0.5 wt% TiO 2 ) interlayer was much suppressed by CMF interlayer (A-cell). This is because Ni was trapped in the CMF interlayer and formed Ni-CMF composite layer. Decrease in the polarization resistance might be assigned to the formation of Ni-CMF composite layer. Thus, CMF is promising for increasing the power generation property of microtubular SOFC using LSGM electrolyte prepared by dip coating method.