Ethylene-selective electrode with a mixed valence cu4o3catalyst

一种电极、混合物的技术，应用在电极、电极形状/类型、电解过程等方向，能够解决没有得到、无法产生电极等问题

Inactive Publication Date: 2020-07-03
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Reproducible experiments demonstrate that the described static pressing process fails to produce stable electrodes
Also found a negative effect of Vulkan XC 72 mixed in, making the same not get hydrocarbons

Method used

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  • Ethylene-selective electrode with a mixed valence cu4o3catalyst
  • Ethylene-selective electrode with a mixed valence cu4o3catalyst
  • Ethylene-selective electrode with a mixed valence cu4o3catalyst

Examples

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example 1

[0157] Cu 3 o 4 The synthesis of the phase was inspired by the synthetic route (mg range) described in the publication of Zhao et al. (Zhao et al., Chem. Mater. 2012, 24, pp. 1136-1142).

[0158] A typical synthesis involves dissolving 50 mM Cu(NO 3 ) 2 ·3H 2 O. The solution was stirred for 10 min and then transferred into a 1.5 L glass liner which was then placed into a stainless steel autoclave (Autoclave BR-1500, Berghof). The autoclave was closed and the reaction mixture was kept inside the autoclave at 130 °C for 24 h. After 24 h, the glass liner and reaction mixture were removed from the autoclave and cooled to room temperature by means of an ice bath. The reaction product precipitated in the glass liner. After cooling, the supernatant was removed from the glass liner, and the remaining solid product was collected by centrifugation and washed three times with ethanol. The powder obtained was first dried in a stream of argon and then in vacuo. Finally, the powder...

example 2

[0167] still based on Figure 17 The double-film test device containing Cu was tested 4 o 3 GDE as catalyst. GDE was prepared as described above. 0.5M H 2 SO 4 Used as electrolyte between the anion exchange membrane AEM (Sustainion x37-50 membrane) and cation exchange membrane CEM (Nafion 117 membrane) and as electrolyte circulating in the chamber behind the anode. Measurements were performed in constant current mode, i.e. the GDE was tested at different constant current values. Use with IrO 2 A coated solid Ti-plate was used as the counter electrode. The electrolytic cell was equipped with an Ag / AgCl / 3M KCl reference electrode. For galvanostatic measurements, the cathode was connected as the working electrode. due to H 2 SO 4 The whole was used as an electrolyte, so the pH was close to zero during the experiment. This experiment shows that in a novel dual-film device with a zero gap (Zero Gap) anode (CEM directly against the anode surface) and a zero gap (Zero Gap...

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Abstract

The invention relates to an electrode comprising Cu4O3, a method for producing an electrode of this type, an electrolytic cell comprising an electrode of this type, and a method for electrochemicallyconverting carbon dioxide using such an electrode.

Description

technical field [0001] The present invention relates to containing Cu 4 o 3 Electrodes, methods for preparing such electrodes, electrolytic cells comprising such electrodes, and methods for the electrochemical conversion of carbon dioxide and / or carbon monoxide using such electrodes. Background technique [0002] Currently, approximately 80% of the world's energy needs are covered by the burning of fossil fuels, a process that results in approximately 34 billion tons of carbon dioxide being emitted into the atmosphere globally each year. Most of the CO2 is removed by this release into the atmosphere, for example for lignite power plants up to 50,000 tons of CO2 per day can be emitted. Carbon dioxide belongs to the so-called greenhouse gases whose negative impact on the atmosphere and climate is discussed. from CO 2 Preparation of valuable products is a technical challenge. Since carbon dioxide is thermodynamically low in energy, it is difficult to reduce carbon dioxide ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B11/04C25B3/04C25B11/03C25B3/25
CPCC25B11/04C25B3/25C25B11/031C25B11/077C23C24/02C25B11/093C25B11/032C25B11/065C25B11/054C25B9/23C25B13/00
Inventor N·马蒂克C·瑞勒G·施米德B·施米德D·赖尼施
Owner SIEMENS AG
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