Papers by Author: Kun Qi Wang

Abstract: A photoelectrochemical biofuel cell (PEBFC) generating electrical energy directly from sunlight and biomass was investigated. In this paper, the PEBFC had a natural chlorophyll-sensitized titanium dioxide (TiO2) film photoanode and Pt black cathode. The electron transport process of the PEBFC was described. The performances of the PEBFC were obtained by photocurrent-photovoltage characteristic curves. The open-circuit photovoltage (Voc), the short-circuit photocurrent (Isc) and the maximum power density (Pmax) is 0.53V, 1.000 μAcm-2 and1.1520 μWcm-2 at 0.37 V, respectively. The incident photo-to-current efficiency (IPCE) is 8.4% at 380 nm.

Abstract: Study of the electrochmeical biosensor has become a new interdisciplinary frontier between biological detection and material science due to their excellent prospects for interfacing biological recognition events with electronic signal transduction. Nanomaterials provided a significant platform for designing a new generation of bioelectronic devices exhibiting novel functions due to their high surface-to-volume ratio, good stability, small dimension effect, good compatibility and strong adsorption ability. In this paper, we review the development of electrochemical biosensors fabricated with various nanoscale materials, also highlight the analytical applications in terms of biochemistry.

Abstract: A Photoelectrochemical Biofuel Cell (PEBFC) generating electrical energy directly from sunlight and biomass was investigated. In this paper,the PEBFC had a triarylamine dye-sensitized titanium dioxide(TiO₂) film photoanode and Pt black cathode. The electron transport process of the PEBFC was also described. The performances of the PEBFC were obtained by photocurrent–photovoltage characteristic curves.The open-circuit photovoltage(V_oc), the short-circuit photocurrent (I_sc) and the maximum power density (P_max) was 0.82V, 69.00 μAcm^-2 and14.00μWcm^-2 at 0.27 V, respectively. The fill factor (FF) was 0.25 and the incident photo-to-current efficiency (IPCE) was 3.5% at 441 nm.