Application of TiS2 as catalyst for electrolytic water cathode hydrogen evolution
An electrolysis and catalyst technology, applied in electrodes, electrolysis process, electrolysis components, etc., to achieve the effect of low cost and excellent hydrogen evolution catalytic performance
Active Publication Date: 2018-03-20
UNIVERSITY OF MACAU
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Problems solved by technology
[0004] But there is no TiS 2 Reports for the hydrogen evolution reduction reaction and obtained excellent catalytic performance
Method used
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Embodiment 1
[0040] Embodiment 1, TiS of the present invention 2 preparation of
[0041] Take 1T-TiS 2 , using cyclic voltammetry to activate, the first 200 times, each time the voltage rises from -0.2V to -1.2V at a rate of 2-10mv / s; Rates are ramped from -0.2V to -0.8V; voltages are relative to a saturated calomel electrode.
[0042] The beneficial effect of the present invention is specified below by the mode of test example:
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Abstract
The invention discloses an application of TiS2 as a catalyst for an electroanalytical hydrogen reaction, and further discloses an activation method of the TiS2. The activation method of the TiS2 comprises the following steps that the TiS2 is obtained activating by using a cyclic voltammetry method for 2000 times, wherein voltages of the first 200 times each are increased from -0.2v to -1.2v with the speed of 2-10 mv per second; the voltages of the rest 1800 times each are increased from -0.2v to -0.8v with the speed of 2-10 mv per second; and the voltages are all relative to a saturated calomel electrode. The activated TiS2 has a very excellent hydrogen evolution catalytic performance, and is expected to replace Pt to become a new-generation hydrogen evolution reduction catalyst.
Description
technical field [0001] The invention relates to the field of hydrogen production catalysis by electrolysis of water, in particular to the use of TiS 2 Use as a cathode hydrogen evolution catalyst for electrolysis of water. Background technique [0002] Hydrogen has been listed as a potential clean energy material due to its high energy density and the fact that it does not emit any greenhouse gases when burned. With the rapid development of hydrogen fuel, electrolytic hydrogen production is gradually stepping into industrialization to replace the traditional steam reforming hydrogen production method to eliminate the dependence on natural gas while reducing costs and increasing the purity of hydrogen fuel. [0003] The key to electrolysis of hydrogen lies in the catalyst used. At present, platinum (Pt) is widely accepted as the most active catalyst in the hydrogen evolution reduction (HER) reaction due to its near-zero energy barrier, high stability and durability, etc., b...
Claims
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IPC IPC(8): C25B11/06C25B1/04
CPCC25B1/04C25B11/075Y02E60/36
Inventor 潘晖屈元举
Owner UNIVERSITY OF MACAU
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