新型リグニン燃料パワーセルを開発 -リチウムイオン電池装置
2022年6月7日
Recently, researchers at Linköping University in Sweden have successfully developed a new type of fuel cell using lignin from trees as a raw material. Unlike batteries that use small molecules such as methanol and ethanol as fuel, this process does not generate carbon dioxide, not only is the raw material green and environmentally friendly, but also the product achieves zero carbon emissions.
Lignin is an important structural material for plants and algae. It is common in bark or wood and is one of the by-products of paper mills. The Organic Electronics Laboratory of Linkoping University (LiU) in Sweden develops fuel cells with this material. Create low-cost environmentally friendly green fuel technology.(Lithium - Ion Battery Equipment)
Most of today's fuel cells are mainly used to supplement hydrogen, but 96% of the hydrogen on the earth comes from fossil fuels, and it has not reached 100% carbon-free energy in the production process. Fuel cells such as ethanol- and methanol-based fuel cells also produce carbon dioxide, and their electrodes are made of expensive and rare platinum.
Lignin is a common biopolymer, and about 25% of trees are lignin, which is used to make cellulose fibers densely aggregated and make wood stronger. In pulp chemical manufacturing, since cellulose is an ideal material for paper, in order to separate the two , lignin dissolves in the sulfate or sulfite process and is one of the by-products of paper mills, so lignin is a cheaper and more readily available material.
Lignin is composed of a large number of hydrocarbon chains, which are decomposed into benzenediols in industrial manufacturing, of which catechol, a variant of benzenediol, accounts for 7% of lignin. Professor Xavier Crispin of LiU Organic Energy Materials Research found that the molecule is an excellent fuel for batteries.
However, bisphenol is an aromatic molecule (aromatic molecules), and it is not suitable to use metal as the electrode of bisphenol fuel cell, otherwise the reaction will be too complicated. Therefore, the researchers switched to a common conducting polymer PEDOT:PSS as the electrode, which can act as both electrode and proton conductor. Crispin said that PEDOT:PSS is an ideal catalyst for the reaction of catechol and other quinols, and the fuel can also be converted into electricity without the formation of carbon dioxide.
Crispin pointed out that when people use fuels such as ethanol, they often claim that they have little impact on the climate and the environment, because carbon dioxide is part of the cycle, and the carbon dioxide can be used to make ethanol again. Now, however, the team has developed technology that can produce electricity without emitting any carbon dioxide, which is cheap and environmentally friendly.
The study also pointed out that the new fuel cells produce the same electricity as methanol- and ethanol-based fuel cells. Crispin said catechols have been efficiently made from lignin, but the team still needs to improve and optimize battery performance in the future. The research has been published in AdvancedSustainableSystems.
Lignin is an important structural material for plants and algae. It is common in bark or wood and is one of the by-products of paper mills. The Organic Electronics Laboratory of Linkoping University (LiU) in Sweden develops fuel cells with this material. Create low-cost environmentally friendly green fuel technology.(Lithium - Ion Battery Equipment)
Most of today's fuel cells are mainly used to supplement hydrogen, but 96% of the hydrogen on the earth comes from fossil fuels, and it has not reached 100% carbon-free energy in the production process. Fuel cells such as ethanol- and methanol-based fuel cells also produce carbon dioxide, and their electrodes are made of expensive and rare platinum.
Lignin is a common biopolymer, and about 25% of trees are lignin, which is used to make cellulose fibers densely aggregated and make wood stronger. In pulp chemical manufacturing, since cellulose is an ideal material for paper, in order to separate the two , lignin dissolves in the sulfate or sulfite process and is one of the by-products of paper mills, so lignin is a cheaper and more readily available material.
Lignin is composed of a large number of hydrocarbon chains, which are decomposed into benzenediols in industrial manufacturing, of which catechol, a variant of benzenediol, accounts for 7% of lignin. Professor Xavier Crispin of LiU Organic Energy Materials Research found that the molecule is an excellent fuel for batteries.
However, bisphenol is an aromatic molecule (aromatic molecules), and it is not suitable to use metal as the electrode of bisphenol fuel cell, otherwise the reaction will be too complicated. Therefore, the researchers switched to a common conducting polymer PEDOT:PSS as the electrode, which can act as both electrode and proton conductor. Crispin said that PEDOT:PSS is an ideal catalyst for the reaction of catechol and other quinols, and the fuel can also be converted into electricity without the formation of carbon dioxide.
Crispin pointed out that when people use fuels such as ethanol, they often claim that they have little impact on the climate and the environment, because carbon dioxide is part of the cycle, and the carbon dioxide can be used to make ethanol again. Now, however, the team has developed technology that can produce electricity without emitting any carbon dioxide, which is cheap and environmentally friendly.
The study also pointed out that the new fuel cells produce the same electricity as methanol- and ethanol-based fuel cells. Crispin said catechols have been efficiently made from lignin, but the team still needs to improve and optimize battery performance in the future. The research has been published in AdvancedSustainableSystems.
