Photochemical Cell Biology
(1) biological theory of photochemical battery
Biological photochemical battery or by the Department of Biology, waste biomass energy resources such as energy produced, the cost of the minimum. As the activity of the prototype can only directly in the fuel cell power generation, wave it through the cell activation, the electrode reaction generating direct. Now in the pilot phase of the empirical UV, visible light is still the future goal is to further use of long-wavelength infrared light activation. Build hydrogen fuel cell hydrogen supply base, cost, and security from the point of view, is not easy. There are other fuel compounds, such as ammonia to the media the way that the energy proposal. The safe disposal of animal waste has become the world’s largest problem, especially nitrogen, ammonia is eventually became material, the treatment goal has not yet developed, in view of this situation, we should first try to build a direct ammonia fuel cell photochemical.
In alkaline conditions, will be a Platinum fear of titanium dioxide particles suspended in ammonia solution, with ultraviolet light, so that ammonia decomposition, with the 3 / 1 molar ratio to generate H2/N2. The nano-porous titanium dioxide and platinum electrodes with a very, soaked in ammonia solution, in acid-free state, for UV irradiation, in produce titanium dioxide on the N2, to generate polarity in the H2, however, on such occasions, as electromotive force small, light battery as meaningful. However, the coexistence of oxygen under light conditions, due to the polarity of the negative (cathode) from the oxygen reduction reaction, as a biological photochemical cell function, showing the potential potential.
2 Department of ammonia solution BPCC most characteristic (1 room type), with 10M ammonia solution, 500W xenon lamp irradiation (light intensity 503mWcm-2), be open light EMF Voc 0.84V, short-circuit photocurrent Jsc 0.30mAcm-2, curve factor FF 0.6. Photocurrent density of ultraviolet photons value as a speed law, now is not too high, light photons, the ratio of current flowing through the light, not the best set ratio, currently about 19%. UV light with energy excess, ammonia confirmed the role of bio-sensitive chemical batteries.
(2) Biological Photographic Chemistry Battery (BPCC) applications.
Using this light fuel cells, biomass and organic matter if the sending body compounds as liquid or deep into the liquid, as fuel can be converted directly into electricity. Alcohol (methanol, ethanol) or organic acids, urea, amino acid and glucose as sugar, whether the protein (gelatin, bone gum), polysaccharides (agarose, cellulose), natural polymers like lignin are also can be used as direct fuel for power generation, for example, liquid ethanol into Voc 0.49V, Jsc 0.52mAcm-2, FF 0.25, the light reactive fuel cell consists of the following type 1 and type 2 said.
(Optical anode reaction) C2H5OH +12 h + +3 H2O 2CO2 +12 H + (1)
(Cathode reaction) 3O2 +12 e-+12 H + 6H2O (2)
Total C2H5OH +3 O2 +3 H2O 2CO2 +6 H2O (3)
This reactive EO is 0.084V (VS, SHE), donor sex (send body) close to H2, ammonia and necessary activity of the same energy and small. Explicitly using thin type BPCC, in solar simulation, AM1.5, irradiation intensity 100mWem-2 under the conditions of natural products with a solution or uneven coloring paste natural product test materials can also be power. If you smash into a slurry of waste biomass, photolysis purification, they can generate electricity, the energy can be contained for direct power recovery.
As a sustainable energy resource for biomass and its LCA (Life Cycle) evaluation and use of biological photochemical battery direct power biomass. UV radiation is present, but the waste and other biomass decomposition system and also the power of purification is effective in obtaining the data using Ning to be the sun, while for visible light.
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