Preparation method and surface modification method of molybdenum modified iron oxide photoelectrode

A surface modification, iron oxide technology, applied in the field of materials, can solve the problem of solar energy-chemical energy not exceeding 3%, etc., and achieve the effect of simple process and easy condition control

Active Publication Date: 2019-03-26
SUZHOU UNIV
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Problems solved by technology

[0005] An object of the present invention is to solve the technical problem that the conversion efficiency of existing solar energy-chemical energy is still no more than 3%

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  • Preparation method and surface modification method of molybdenum modified iron oxide photoelectrode
  • Preparation method and surface modification method of molybdenum modified iron oxide photoelectrode
  • Preparation method and surface modification method of molybdenum modified iron oxide photoelectrode

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[0052] For the following defined terms, unless a different definition is given in the claims or elsewhere in this specification, these definitions shall apply. All numerical values, whether or not expressly indicated, are defined herein as modified by the term "about". The term "about" generally refers to a numerical range that one of ordinary skill in the art considers equivalent to the stated value to produce substantially the same property, function, result, etc. A numerical range indicated by a lower value and an upper value is defined to include all values ​​included within that numerical range and all subranges included within that numerical range. All occurrences of "mM" are to be considered as abbreviations for "mmol / l". All occurrences of "M" are considered an abbreviation for "mol / l".

[0053] Fundamental information on the hydrothermal reactions of the present invention is available in various scientific and patent literature. Briefly stated here, hydrothermal re...

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Abstract

The invention provides a preparation method and surface modification method of a molybdenum modified iron oxide photoelectrode. The preparation method comprises the following steps that a FTO conductive glass with the upward conductive face is placed into a reaction kettle, and a precursor solution with the molybdenum element is added into the reaction kettle; the reaction kettle is heated for 4-7h at the temperature of 80-180 DEG C, and the FTO conductive glass is taken out after the reaction kettle finishes heating and is cooled; the FTO conductive glass is obliquely placed into the reactionkettle containing inorganic salt of iron and a mineralizing agent solution, the reaction kettle is heated for 2-5h at the temperature of 60-100 DEG C, and the FTO conductive glass is taken out afterthe reaction kettle finishes heating and is cooled; and the FTO conductive glass annealed for 1-3h at the temperature of 500-600 DEG C and annealed or 10-30min at the temperature of 700-800 DEG C, andtherefore the molybdenum modified iron oxide photoelectrode grows on the FTO conductive glass. By means of the preparation method and the surface modification method, the photocurrent density of theFe2O3 photoelectrode is greatly improved, the initial voltage is reduced, and therefore the photoelectrocatalysis performance of the photoelectrode is greatly improved.

Description

technical field [0001] The invention relates to the field of material technology, in particular to a preparation method and a surface modification method of a molybdenum-modified iron oxide photoelectrode. Background technique [0002] In recent decades, with the depletion of coal, oil, natural gas and other fossil energy sources and the increasingly serious environmental pollution problems, the sustainable development of human society has been seriously threatened, and the development of clean and renewable energy is imminent. . As a kind of clean energy, hydrogen energy is considered as one of the most ideal alternative energy sources to solve energy crisis and environmental problems because of its high combustion value, high efficiency and environmental friendliness. However, the current large-scale acquisition of hydrogen mainly comes from the reforming of coal, oil and natural gas. Although this hydrogen production method is mature, it is expensive and pollutes the env...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/04C25B11/04C25D3/12C25D3/20
CPCC25B1/04C25B11/04C25D3/12C25D3/20C25B1/55Y02E60/36
Inventor 钟俊魏爱民
Owner SUZHOU UNIV
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