Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of preparation method of organometallic halide perovskite photoanode

A halide perovskite, organometallic technology, applied in electrodes, electrolysis components, electrolysis process, etc., can solve problems such as difficult application of photovoltaic performance

Inactive Publication Date: 2021-04-20
NORTHEAST NORMAL UNIVERSITY
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But CH 3 NH 3 wxya 3 The disadvantage of decomposing upon contact with water makes its excellent photovoltaic performance difficult to apply in the field of photocatalytic water splitting. Therefore, how to make CH 3 NH 3 wxya 3 The photoelectrode is directly immersed in the electrolyte for photocatalytic water splitting, which has become a major problem nowadays.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of preparation method of organometallic halide perovskite photoanode
  • A kind of preparation method of organometallic halide perovskite photoanode
  • A kind of preparation method of organometallic halide perovskite photoanode

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0027] The perovskite photoanode was used as a working electrode, and a three-electrode system was formed with a reference electrode and a counter electrode. With 1M potassium hydroxide solution as the electrolyte, the photoelectric performance of the photoanode was tested, and the influence of the conductive silver paste on its performance was compared (see attached Figure 5 ). When the bias voltage was 1.23V, the photos of oxygen evolution on the surface of the photoanode were taken (see attached Figure 5 d)

specific Embodiment 2

[0029] In order to test the stability of the perovskite photoanode, we placed the photoanode in acidic, alkaline, and neutral electrolyte solutions for long-term photocurrent testing, and the bias voltage was set to 1.23V. The test results are attached Figure 6 , the results show that the photoanode has good working stability in different electrolyte solutions.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method for preparing an organic metal halide perovskite photoanode with excellent stability. The as-prepared perovskite photoanode can be used for photoelectrochemical splitting of water to generate oxygen. The photoanode is based on perovskite material, and the commercial conductive carbon paste and conductive silver paste are screen-printed on the outer layer to protect the perovskite from electrolyte erosion. Without the assistance of other co-catalysts, the photoanode exhibits good ability to split water and produce oxygen with ultra-long stability. The preparation method of the organic metal halide perovskite photoanode provided by the present invention is simple, low in cost, and easy to operate in a large area, and effectively applies the excellent photovoltaic performance of the perovskite material to the photoelectric catalytic decomposition of water, and is suitable for new high-performance photoelectric Development and production of catalytic photoanodes.

Description

[0001] Inventor: Xu Lin Taoran technical field [0002] The invention belongs to the technical field of photoelectric catalysis, and relates to a method for preparing an organic metal halide perovskite photoanode. Background technique [0003] With the increasing energy crisis and environmental pollution, the development and utilization of clean and new energy has attracted widespread attention from all over the world. Photocatalytic water splitting technology, as one of the main means of solar energy utilization, can directly convert the most abundant energy solar energy into clean energy hydrogen energy, which provides the possibility for human beings to use solar energy to alleviate energy crisis and environmental pollution problems. However, after more than 40 years of hard work, the solar energy conversion efficiency of photocatalytic water splitting technology is still low and cannot reach the level of large-scale industrialization. There are many disadvantages in wat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C25B1/04C25B1/55C25B11/053C25B11/095
CPCY02E60/36H10K30/151H10K30/821H10K85/50H10K30/50
Inventor 许林陶然
Owner NORTHEAST NORMAL UNIVERSITY