本文へジャンプ

成果報告書詳細
管理番号20190000000230
タイトル*平成30年度中間年報 NEDO先導研究プログラム エネルギー・環境新技術先導研究プログラム 異なる電極活性点を利用したCO2からのC2化合物製造技術およびシステムの研究開発
公開日2019/6/21
報告書年度2018 - 2018
委託先名国立研究開発法人理化学研究所 古河電気工業株式会社 千代田化工建設株式会社
プロジェクト番号P14004
部署名材料・ナノテクノロジー部
和文要約
英文要約Title:Hybrid Electrocatalysts for C2 Production from CO2 and the Appropriate System (FY2018-FY2019) FY2018 Annual Report

1 Background
Considering from the COP21 agreement, CO2 exhaust reduction and achievement of the middle- and long-range problems for environment and energy must be overcome. In order to solve these problems, it is not enough by continuous technology developments and is required revolutionary technology developments and installed new systems.

2 Research Concept
The purpose of this research is the production of basic C2 chemical products like ethylene directly from CO2 and H2O under low-temperature and low-pressure conditions by using the electricity produced from renewable energy. The mechanisms of CO2 reduction of newly developed Cu-based catalysts will be investigated. In addition, the system concept will be established with using the electrochemical cell including the developed catalyst-loaded electrode.

3 Research Formation and Implementations
1) Research Item A: Investigation of reduction reaction mechanisms (RIKEN)
A-1 ex-situ and in-situ analysis of electrode surface
A-2Technical information gathering

2) Research Item B: Developments of catalyst-loaded electrode (Furukawa Electric)
B-1 Investigation of screening and problem pick up for electrode fabrication

3) Research Item C: Evaluation of CO2 reduced material and its time dependence of the developed electrode / Establishments of process outline (Chiyoda Corporation)
C-1 Evaluation of the developed electrode from its reduced production and time dependence (collaboration with the research of the electrode)
C-2 Early stage evaluation for the establishments of process outline

4 Research Results
The research results of this year are as follows.
* Not only single crystal Cu but also common-used poly-crystalline Cu electrode was investigated and found the polycrystalline Cu electrode was able to be used for CO2 reduction. It shows that a large amount of cost reduction of the electrode.
* Zn/Cu electrode for long-time stabilized (>500 hrs) C2H4 formation (>30%) were found from the screening tests.
* Preliminary CO2 reduction reaction mechanisms were estimated. In-situ type electro-surface evaluation equipment was fabricated. The absorption materials on electrode will be evaluated with this in-situ measurement equipment and the results will be used for the reaction mechanism improvements.
* Preliminary process outline establishments were performed and the problem is extracted.

5 Future Plan
From the research results, the following items will be evaluated in order to the product selectivity improvements.
* Improvements of the reaction mechanisms
* Development of high-production selective electrode and evaluation of material production for the industrial use
* Evaluation of long-term stability of electrode and process design and outline establishment for the industrial-scale.
ダウンロード成果報告書データベース(ユーザ登録必須)から、ダウンロードしてください。

▲トップに戻る