炭素ナノチューブで支えられた金属有機フレームワークによる効率的な電気触媒性陽子還元
Daniel Micheroni1, Guangxu Lan1, Wenbin Lin1
1Department of Chemistry , The University of Chicago , 929 East 57th Street , Chicago , Illinois 60637 United States.
Journal of the American Chemical Society
|November 6, 2018
まとめ
研究者は,効率的な水素生成のために,炭素ナノチューブ (CNT) に培われた金属有機フレームワーク (MOF) を使用して新しい触媒を開発しました. この高度な材料は 電気触媒による陽子還元を 大きく促進し 持続可能なエネルギーの 実現に寄与します
科学分野:
- 材料科学
- 電気化学
- カタリシス
背景:
- 電気触媒による陽子還元による水素の生産は持続可能なエネルギーにとって不可欠ですが,触媒の効率と安定性に問題があります.
- 地球に豊富な触媒は,貴金属触媒に関連するコストと希少性の問題を克服するために非常に求められています.
研究 の 目的:
- 炭素ナノチューブ (CNT) と統合された金属有機フレームワーク (MOF) を使用して,陽子還元のための効率的な電気触媒を開発する.
- MOF と CNT の間の共振結合が電子伝送と触媒活性を強化する役割を調査する.
主な方法:
- 炭素ナノチューブ (CNT) 上でのHf12-ポルフィリン金属有機フレームワーク (MOF) の成長
- Hf12-CoDBP/CNTアセンブリの電子触媒による試行により,陽子還元を行う.
- 電子伝送機構と触媒性能の分析
主要な成果:
- Hf12-CoDBP/CNTアセンブリは,電解性陽子還元に高い活性を示した.
- コバルト-ポルフィリン活性部位への効率的な電子移転を容易にした.
- 触媒は30分で3万2千回転の回転頻度17.7S−1を達成した.
結論:
- 開発されたMOF/CNT複合物は,水素生産のための非常に活発で効率的な電気触媒です.
- この研究は,高度な触媒アプリケーションのための導電性ナノ材料とMOFを統合する可能性を強調しています.
- この発見は,持続可能なエネルギー技術の費用対効果の高い,堅固な触媒の開発に寄与します.
関連する概念動画
Oxidation and Reduction of Organic Molecules
9.4K
Energy production within a cell involves many coordinated chemical pathways. Most of these pathways are combinations of oxidation and reduction reactions, which occur at the same time. An oxidation reaction strips an electron from an atom in a compound, and the addition of this electron to another compound is a reduction reaction. Because oxidation and reduction usually occur together, these pairs of reactions are called redox reactions.
The removal of an electron from a molecule, results in a...
The removal of an electron from a molecule, results in a...
9.4K
Oxidation-Reduction Reactions
75.7K
Oxidation–Reduction Reactions
75.7K
The Carbon Cycle
43.8K
Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle.
43.8K
Metallic Solids
20.6K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
20.6K
Carbon Skeletons
115.1K
Life on Earth is carbon-based, as all macromolecules that make up living organisms contain carbon atoms. All organic compounds have a carbon backbone. Each carbon atom is tetravalent and can bond with four other atoms, making it an extraordinarily flexible component of biological molecules. Because carbon’s valence electrons are stable, it rarely becomes an ion. As the carbon chain increases in length, structural modifications such as ring structures, double bonds, and branching side...
115.1K
Metal-Ligand Bonds
24.3K
The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
24.3K


