Energy Storage and Green Chemistry Lab
儲能與綠色化學實驗室
Core technique -- Electrochemical Methods
團隊的核心技術為電化學，並聚焦在儲能方面的應用。我們擁有種類遠多於一般實驗室的電化學測試儀器，如：Solartron 1470E、Arbin充放電儀、Autolab恆電位儀等。另外，超臨界二氧化碳流體與離子液體在化學合成或電化學儲能領域皆極富吸引力，也是我們的研究對象。
團隊在電化學儲能元件、電化學生物感測器、儲氫材料研究、離子液體電性研究 (可至"Publications"頁面搜尋)，皆有豐富的成果。
Electrochemistry is a branch of chemistry concerned with the interrlation of electrical and chemical effects. Our technique and goal are investigating electrochemical mechanisms within reactions and producing/assembling high-performance energy production/storage devices by electrochemical methods. With bunch of electrochemical testing instruments (e.g. Solartron 1470E, Autolab JC-71, Arbin system), almost all investigation can be done in domestic. Onthe other hand, super critical carbon dioxide fluid and ionic liquids, serving as "Green chemistry" and remaining interesting characters, are two worth-studying targets.
We are at leading state in fields of 2nd batteries, supercapacitors, electrochemical biosensors, hydrogen-storage investigations and electrochemical study of ILs.
鋰離子電池
Li-ion battery
Among various chemical-energy storage devices, lithium (Li)-ion batteries (LIBs) are the most commonly used for consumer portable electronic devices and are promising for next-generation large-scale charge storage due to their outstanding energy and power densities.
Image from: http://goo.gl/5KR7xo
鈉離子電池
Sodium-ion battery
Alternatives to LIBs have thus attracted a lot of attention. Sodium (Na) is more abundant than Li. Moreover, Na and Li have similar chemical properties, making Na-ion batteries (NIBs) a recent research focus. The advantages of Na, namely abundance and low cost, become even more pronounced.
Image from: http://goo.gl/B2F2js
鎂/鋁離子電池
Multivalent-ion battery
電化學超高電容
Supercapacitor
Multivalent battery systems like rechargeable magnesium (Mg), calcium and aluminum-ion batteries are garnering more interest as candidate post-lithium (Li) systems. Mg, for example, being divalent and denser, is theoretically capable of delivering a higher volumetric energy-density(3833 mA h cm−3) than Li (2061 mA h cm−3).
Image from: http://www.nature.com/article-assets/npg/srep/2013/131129/srep03383/
Supercapacitors(EDLCs, pseudocapacitors, asymmetry system) have attraced much attention as electrical energy storage systems. They have abilities to generate high specific power density, which is suitable as power sources for electric vehicles, digital telecommunication systems , as uninterrupted power supplies for computers, etc.
儲氫材料
Hydorgen storage
materials
電化學生物感測器
Electorchemical biosensor
Metal hydrides, such as MgH2, NaAlH4, LiAlH4, LiH, LaNi5H6, TiFeH2 and palladium hydride, with varying degrees of efficiency, can be used as a storage medium for hydrogen, often reversibly. These materials have good energy density by volume, although their energy density by weight is often worse than the leadinghydrocarbon fuels.
Image from: http://newscenter.lbl.gov/2011/03/14/breakthrough-in-hydrogen-storage/
光電化學產氫
Photoelectrochemical
water splitting
Among various glucose(or other target objects) detection methods, the electrochemical sensing approach has attracted considerable attention and has become a promising method due to its simplicity, reliability, accuracy, and ease of direct and continuous monitoring.
Image from: http://goo.gl/R6fp0p
金屬空氣電池
Metal-air battery
Since, 1970s, the approach to solving water splitting problems has been focused on evaluating new materials for both anodic/cathodic processed, and optimizing morphology that ultilize photovoltaic cell. Currently, we aim on hematite(Fe2O3) for candidate material.
Image from: http://departments.icmab.es/ssc/research-lines/concepcion-domingo
Zinc–air batteries have some properties of fuel cells as well as batteries: the zinc is the fuel, the reaction rate can be controlled by varying the air flow, and oxidized zinc/electrolyte paste can be replaced with fresh paste.
Image from: https://electrochemistry.grc.nasa.gov/current-projects/batteries-for-o2-concentrators/
超臨界流體
Supercritical fluid
離子液體
Ionic liquid
Supercritical fluid, which has gas-like diffusivity and extremely low viscosity, has excellent mass transfer properties and thus can effectively transport the reaction precursors throughout the samples. it is ideal for synthesizing nano-sized materials and uniformly dispersing them onto high-surface-area supporting materials.
Image from: www.sciencedaily.com/releases/2011/08/110830151229
Ionic liquids (ILs), also known as room-temperature molten salts, are characterized by intrinsic ionic conductivity, large electrochemical potential windows, good thermal stability, non-volatility, non-flammability, and non-toxicity. ILs have found a wide range of potential applications in synthesis, catalysis, analysis, separation, photoluminescence, electrochemistry, and energy-related applications
Image from: www.nature.com/nmat/journal/v8/n8/box/nmat2448_BX1.html
固態燃料電池
Solid oxide fuel cells
Fuel cells are characterized by their electrolyte material; the SOFC has a solid oxide or ceramic electrolyte. SOFC holds advantage than other type fuel cells with its relative low-cost cermaic electrolyte and extremely high electrical efficiency (>65%). We collborate with a research group in Departmet of Mechanical Enginnering in NCU to develope a competitive system.
Image from: http://energy.gov/fe/why-sofc-technology
