Photoelectrocatalysis(PEC)is a promising approach that can convert renewable solar energy into chemical energy,while most concern is concentrated on PEC water splitting to obtain high‐value‐added fuel—hydrogen.In p...Photoelectrocatalysis(PEC)is a promising approach that can convert renewable solar energy into chemical energy,while most concern is concentrated on PEC water splitting to obtain high‐value‐added fuel—hydrogen.In practice,more economic benefits can be produced based on PEC technique,such as H_(2)O oxidative H_(2)O_(2) synthesis,organic selective oxidation,organic pollutants degradation and CO_(2) reduction.Although there are plenty of excellent reviews focusing on the PEC water splitting system,the production of various high‐value‐added chemicals in PEC systems has not been discussed synthetically.This Account will focus on the production process of various high‐value‐added chemicals through PEC technology.The photoelectrode design,reaction environment and working mechanisms of PEC systems are also discussed in detail.We believe that this comprehensive Account of the expanded application of photoelectrocatalysis can add an inestimable impetus to the follow‐up development of this technology.展开更多
Vegetable oil and derivative,as well as waste cooking oil,are important resources for microbial fermentation to produce high-value-added metabolites.Diversity of their compositions not only provides more choices for t...Vegetable oil and derivative,as well as waste cooking oil,are important resources for microbial fermentation to produce high-value-added metabolites.Diversity of their compositions not only provides more choices for the fermentation by different microorganisms,but also is a challenge for their systematic utilization.According to the previous literature,4 main functions of vegetable oil and derivative can be summarized,such as carbon source,precursor,inducer and cell protectant during fermentation process.Currently,there is still insufficient knowledge about application of vegetable oil and derivative for high-value-added metabolite production.Therefore,this article firstly presented a comprehensive summary of compositions of vegetable oils and their derivatives,variety of corresponding microbial metabolites,limiting factors and optimization of fermentation process.展开更多
Lignin is one of the most important biomass resources. With the increasing consumption of petroleum resource, lignin transformation is of strategic significance and has attracted widely interest. As lignin is a random...Lignin is one of the most important biomass resources. With the increasing consumption of petroleum resource, lignin transformation is of strategic significance and has attracted widely interest. As lignin is a random construction of aromatic monomers, the degradation products are usually very complex, which limits the scaling application of lignin as feedstock for valuable chemicals. Thus, it is desperately desired to develop highly selective approach to lignin conversion. This review first gives a brief introduction to the structure of lignin, and then summarized the methods for selective transformation of lignin into phenols, aldehydes, carboxylic acids, alkanes and arenes. Finally, the challenges and opportunities of lignin selective transformation are discussed.展开更多
The increase in natural gas reserves makes methane a significant hydrocarbon feedstock. However, thedirect catalytic conversion of methane into liquid fuels and useful chemicals remains a great challenge,and many stud...The increase in natural gas reserves makes methane a significant hydrocarbon feedstock. However, thedirect catalytic conversion of methane into liquid fuels and useful chemicals remains a great challenge,and many studies have been devoted to this field in the past decades. Electrocatalysis is considered asan important alternative approach for the direct conversion of methane into value-added chemicals, al-though many other innovative methods have been developed. This review highlights recent advances inelectrocatalytic conversion of methane to ethylene and methanol, two important chemicals. The electro-catalytic systems efficient for methane conversions are summarized with an emphasis on catalysts andelectrolytes. The effects of reaction conditions such as the temperature and the acid-base property of thereaction medium are also discussed,展开更多
文摘Photoelectrocatalysis(PEC)is a promising approach that can convert renewable solar energy into chemical energy,while most concern is concentrated on PEC water splitting to obtain high‐value‐added fuel—hydrogen.In practice,more economic benefits can be produced based on PEC technique,such as H_(2)O oxidative H_(2)O_(2) synthesis,organic selective oxidation,organic pollutants degradation and CO_(2) reduction.Although there are plenty of excellent reviews focusing on the PEC water splitting system,the production of various high‐value‐added chemicals in PEC systems has not been discussed synthetically.This Account will focus on the production process of various high‐value‐added chemicals through PEC technology.The photoelectrode design,reaction environment and working mechanisms of PEC systems are also discussed in detail.We believe that this comprehensive Account of the expanded application of photoelectrocatalysis can add an inestimable impetus to the follow‐up development of this technology.
基金supported by the Natural Science Foundation of Hubei Province (2019CFB378)the Ministry of Science and Technology of the People’s Republic of China (2016YFD0501209)the Chinese Academy of Agricultural Sciences (CAAS-ASTIP-2016-OCRI)
文摘Vegetable oil and derivative,as well as waste cooking oil,are important resources for microbial fermentation to produce high-value-added metabolites.Diversity of their compositions not only provides more choices for the fermentation by different microorganisms,but also is a challenge for their systematic utilization.According to the previous literature,4 main functions of vegetable oil and derivative can be summarized,such as carbon source,precursor,inducer and cell protectant during fermentation process.Currently,there is still insufficient knowledge about application of vegetable oil and derivative for high-value-added metabolite production.Therefore,this article firstly presented a comprehensive summary of compositions of vegetable oils and their derivatives,variety of corresponding microbial metabolites,limiting factors and optimization of fermentation process.
基金supported by the National Natural Science Foundation of China (No. 21603235)National Key Research and Development Program of China (No. 2017YFA0403103)Chinese Academy of Sciences (No. QYZDY-SSW-SLH013)
文摘Lignin is one of the most important biomass resources. With the increasing consumption of petroleum resource, lignin transformation is of strategic significance and has attracted widely interest. As lignin is a random construction of aromatic monomers, the degradation products are usually very complex, which limits the scaling application of lignin as feedstock for valuable chemicals. Thus, it is desperately desired to develop highly selective approach to lignin conversion. This review first gives a brief introduction to the structure of lignin, and then summarized the methods for selective transformation of lignin into phenols, aldehydes, carboxylic acids, alkanes and arenes. Finally, the challenges and opportunities of lignin selective transformation are discussed.
基金supported by the SINOPEC(No.415069)the National Natural Science Foundation of China (Nos.21690082,91545203 and 21503176)
文摘The increase in natural gas reserves makes methane a significant hydrocarbon feedstock. However, thedirect catalytic conversion of methane into liquid fuels and useful chemicals remains a great challenge,and many studies have been devoted to this field in the past decades. Electrocatalysis is considered asan important alternative approach for the direct conversion of methane into value-added chemicals, al-though many other innovative methods have been developed. This review highlights recent advances inelectrocatalytic conversion of methane to ethylene and methanol, two important chemicals. The electro-catalytic systems efficient for methane conversions are summarized with an emphasis on catalysts andelectrolytes. The effects of reaction conditions such as the temperature and the acid-base property of thereaction medium are also discussed,
