Layered double hydroxides(LDHs), as a class of typical two-dimensional materials, have sparked increasing interest in the field of energy storage and conversion. In the last few years, the research about LDHs as elect...Layered double hydroxides(LDHs), as a class of typical two-dimensional materials, have sparked increasing interest in the field of energy storage and conversion. In the last few years, the research about LDHs as electrode active materials has seen much progress in terms of structure designing, material synthesis, properties tailoring, and applications. In this review, we focus on the integrated nanostructural electrodes(INEs) construction using LDH materials, including pristine LDH-INEs, hybrid LDH-INEs, and LDH derivativeINEs, as well as the performance advantages and applications of LDH-INEs.Moreover, in the final section, the insights about challenges and prospective in this promising research field were concluded, especially in regulation of intrinsic activity and uncovering of structure–activity relationship, which would push forward the development of this fast-growing field.展开更多
采用Ga As衬底增强/耗尽型赝配高电子迁移率晶体管(E/D PHEMT)工艺研制了一款6~10 GHz多功能微波单片集成电路(MMIC)。其集成了4个单刀双掷开关、6 bit数控移相器、6 bit数控衰减器、3个放大器和14 bit并口驱动电路。测试结果表明...采用Ga As衬底增强/耗尽型赝配高电子迁移率晶体管(E/D PHEMT)工艺研制了一款6~10 GHz多功能微波单片集成电路(MMIC)。其集成了4个单刀双掷开关、6 bit数控移相器、6 bit数控衰减器、3个放大器和14 bit并口驱动电路。测试结果表明:接收支路增益大于8 d B,1 d B压缩点输出功率大于3 d Bm;发射支路增益大于1 d B,1 d B压缩点输出功率大于8 d Bm。移相64态均方根误差小于3°,衰减64态均方根误差小于1 d B。在工作频带内接收和发射两种状态下,输入输出驻波比均小于1.5∶1。经过版图优化后,芯片尺寸为3.5 mm×5.1 mm。该多功能MMIC可用于微波收发组件,对传输信号进行幅相控制。展开更多
基金supported by the National Natural Science Foundation of China(21601011 and 21521005)the National Key Research and Development Programme(2017YFA0206804)+1 种基金the Fundamental Research Funds for the Central Universities(buctrc201506 and buctylkxj01)the Higher Education and HighQuality and World-Class Universities(PY201610)
文摘Layered double hydroxides(LDHs), as a class of typical two-dimensional materials, have sparked increasing interest in the field of energy storage and conversion. In the last few years, the research about LDHs as electrode active materials has seen much progress in terms of structure designing, material synthesis, properties tailoring, and applications. In this review, we focus on the integrated nanostructural electrodes(INEs) construction using LDH materials, including pristine LDH-INEs, hybrid LDH-INEs, and LDH derivativeINEs, as well as the performance advantages and applications of LDH-INEs.Moreover, in the final section, the insights about challenges and prospective in this promising research field were concluded, especially in regulation of intrinsic activity and uncovering of structure–activity relationship, which would push forward the development of this fast-growing field.
文摘采用Ga As衬底增强/耗尽型赝配高电子迁移率晶体管(E/D PHEMT)工艺研制了一款6~10 GHz多功能微波单片集成电路(MMIC)。其集成了4个单刀双掷开关、6 bit数控移相器、6 bit数控衰减器、3个放大器和14 bit并口驱动电路。测试结果表明:接收支路增益大于8 d B,1 d B压缩点输出功率大于3 d Bm;发射支路增益大于1 d B,1 d B压缩点输出功率大于8 d Bm。移相64态均方根误差小于3°,衰减64态均方根误差小于1 d B。在工作频带内接收和发射两种状态下,输入输出驻波比均小于1.5∶1。经过版图优化后,芯片尺寸为3.5 mm×5.1 mm。该多功能MMIC可用于微波收发组件,对传输信号进行幅相控制。