Thermoelectric technologies have caught our intense attention due to their ability of heat conversion into electricity.The considerable efforts have been taken to develop and enhance thermoelectric properties of mater...Thermoelectric technologies have caught our intense attention due to their ability of heat conversion into electricity.The considerable efforts have been taken to develop and enhance thermoelectric properties of materials over the past several decades.Recently,twodimensional layered materials are making the promise for potential applications of thermoelectric devices because of the excellent physical and structural properties.Here,a comprehensive coverage about recent progresses in thermoelectric properties of typical two dimensional(2D)layered materials,including the theoretical and experimental results,is provided.Moreover,the potential applications of 2D thermoelectric materials are also involved.These results indicate that the development of 2D thermoelectric materials take a key role in the flexible electronic devices with thermoelectric technologies.展开更多
A copper（Ⅱ） complex with a rigid macrocyclic ligand has been synthesized and utilized as a homogeneous electrocatalyst for water oxidation in sodium phosphate buffer at pH 12,0.By using a glassy carbon electrode in...A copper（Ⅱ） complex with a rigid macrocyclic ligand has been synthesized and utilized as a homogeneous electrocatalyst for water oxidation in sodium phosphate buffer at pH 12,0.By using a glassy carbon electrode in a 3 h electrolysis,a high current density of 1.3-1.4 mA/cm2 and a turn-over number of 4 can be obtained with 1.0 mmol·L-1 of the copper catalyst at an overpotential of 750 mV.Kinetic studies revealed that the electrocatalysis with this complex is a single-site catalysis with proton-coupled electron transfers.Finally,its possible catalytic mechanism was tentatively proposed.展开更多
基金Thanks for the support of the National Key R&D Program of China under Grant No.2016YFA0200400 and the National Natural Science Foundation of China under Grant No.51627805。
文摘Thermoelectric technologies have caught our intense attention due to their ability of heat conversion into electricity.The considerable efforts have been taken to develop and enhance thermoelectric properties of materials over the past several decades.Recently,twodimensional layered materials are making the promise for potential applications of thermoelectric devices because of the excellent physical and structural properties.Here,a comprehensive coverage about recent progresses in thermoelectric properties of typical two dimensional(2D)layered materials,including the theoretical and experimental results,is provided.Moreover,the potential applications of 2D thermoelectric materials are also involved.These results indicate that the development of 2D thermoelectric materials take a key role in the flexible electronic devices with thermoelectric technologies.
文摘A copper（Ⅱ） complex with a rigid macrocyclic ligand has been synthesized and utilized as a homogeneous electrocatalyst for water oxidation in sodium phosphate buffer at pH 12,0.By using a glassy carbon electrode in a 3 h electrolysis,a high current density of 1.3-1.4 mA/cm2 and a turn-over number of 4 can be obtained with 1.0 mmol·L-1 of the copper catalyst at an overpotential of 750 mV.Kinetic studies revealed that the electrocatalysis with this complex is a single-site catalysis with proton-coupled electron transfers.Finally,its possible catalytic mechanism was tentatively proposed.
