M<0.85>Se electrocatalytic material and preparation method thereof and application thereof in double-sided quasi-solid-state dye-sensitized solar cells
A technology of electrocatalytic materials and solar cells, applied in electrolytic capacitors, circuits, capacitors, etc., can solve the problems of expensive, scarce Pt, and limited use of Pt
Inactive Publication Date: 2018-12-07
FUYANG NORMAL UNIVERSITY
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Problems solved by technology
However, due to the scarcity and high cost of Pt, the use of Pt in dye batteries is largely limited.
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[0030] 1. M 0.85 Preparation of Se(M=Co,Ni) Electrocatalytic Materials
[0031] 1.1.Co 0.85 Se: take Se powder 0.024mmol, CoCl 2 ·6H 2O 0.2mmol, 15 mL of hydrazine hydrate, 50 mL of primary water in a 50 mL Erlenmeyer flask, ultrasonically stirred for 30 min, then evenly poured into ten 10 mL reaction kettles under magnetic stirring, and reacted in an oven at 120 ° C for 12 h.
[0032] 1.2. Ni 0.85 Se: take Se powder 0.024mmol, NiCl 2 ·6H 2 O 0.2mmol, hydrazine hydrate 15mL, primary water 50mL in a 50mL Erlenmeyer flask, ultrasonically stirred for 30min, then poured evenly into ten 10mL reaction kettles under magnetic stirring, and reacted in a 120°C oven for 12h.
[0033] 1.3. After the above two materials have reacted, filter the reacted mixture with suction, filter the synthesized nanomaterials to remove the reacted solution to obtain a filter cake, and wash the filter cake with water and absolute ethanol alternately for 10-15 times. The washed filter cake was dried ...
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Abstract
The invention discloses an M<0.85>Se electrocatalytic material and a preparation method thereof and an application thereof in double-sided quasi-solid-state dye-sensitized solar cells. The M<0.85>Se electrocatalytic material is Co<0.85>Se or Ni<0.85>Se. The preparation method of the M<0.85>Se electrocatalytic material includes the following steps: taking and placing selenium powder, MCl<2>.6H<2>O,hydrazine hydrate and primary water in a conical bottle and stirring the materials by ultrasound; pouring the liquid in the conical bottle into a reactor under magnetic stirring, and putting the reactor into a drying tank for reaction; cooling the reactor to room temperature after the reaction stops; carrying out suction filtering on the reacted mixture to obtain a filter cake; washing the filtercake alternately with water and ethanol; and drying the filter cake in a vacuum drying oven to obtain solid which is the M<0.85>Se electrocatalytic material. The morphology of the material is characterized by using XRD and SEM. The catalytic activity of the material is characterized by using cyclic voltammetry, electrochemical impedance and Tafel polarization curve. The photovoltaic performance of double-sided dye-sensitized solar cells based on quasi-solid electrolyte is studied by using an M<0.85>Se (M=Co, Ni) nanomaterial as counter electrodes. When Co<0.85>Se is used as the electrode material, the efficiency of the front is 8.33%, and the efficiency of the back is 5.09%. When Ni<0.85>Se is used as the electrode material, the efficiency of the front is7.06%, and the efficiency of the back is 4.52%.
Description
technical field [0001] The present invention relates to sensitized batteries. Specifically M 0.85 Se electrocatalytic material and its preparation method and its application in double-sided quasi-solid-state dye-sensitized solar cells. Background technique [0002] Today, when people are fully looking for and utilizing various resources, solar energy is one of the cleanest and most effective energy sources that people have found. Based on the utilization of solar energy, dye-sensitized solar cells have attracted the attention of many people, and how to improve the photoelectric conversion efficiency of the cells is the focus of all parties. Therefore, double-sided dye-sensitized solar cells have gained research interest because they can reduce the loss of photoelectric conversion efficiency and further improve conversion efficiency. The double-sided dye-sensitized solar cell consists of a dye-adsorbed titanium dioxide film working electrode, electrolyte, and a counter ele...
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IPC IPC(8): H01G9/20
CPCH01G9/20H01G9/2004H01G9/2022Y02E10/542
Inventor 凡素华李文文刘朋
Owner FUYANG NORMAL UNIVERSITY