公开(公告)号：US20170051419A1

公开(公告)日：2017-02-23

申请号：US15241798

申请日：2016-08-19

申请人： KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： Jong Hyun JANG ,  Soo-Kil KIM ,  Sang Hyun AHN ,  Hyoung-Juhn KIM ,  Jin Young KIM ,  Sung Jong YOO ,  Dirk HENKENSMEIER ,  Jonghee HAN ,  Jaeyune RYU

IPC分类号： C25B11/04 ,  C25D3/50 ,  C25D3/12 ,  C25B1/10 ,  C25B9/10

CPC分类号： C25B11/0478 ,  C23C18/54 ,  C25B1/10 ,  C25B9/10 ,  C25B11/0405 ,  C25B11/0415 ,  C25D3/12 ,  C25D5/54 ,  Y02E60/366

摘要： Provided is an electrocatalyst for anion exchange membrane water electrolysis, including a carbonaceous material, and nickel electrodeposited on the carbonaceous material, wherein nickel is partially substituted with platinum and the substitution with platinum provides increased hydrogen evolution activity as compared to the same electrocatalyst before substitution with platinum. Also provided are a method for preparing the electrocatalyst and an anion exchange membrane water electrolyzer using the same. The nickel electrocatalyst coated with an ultralow loading amount of platinum for anion exchange membrane water electrolysis shows excellent hydrogen evolution activity and has a small thickness of catalyst, thereby providing high mass transfer and high catalyst availability. In addition, the electrocatalyst uses a particle-type electrode to facilitate emission of hydrogen bubbles generated during hydrogen evolution reaction and oxygen bubbles generated during oxygen evolution reaction, and requires low cost for preparation to provide high cost-efficiency.

摘要翻译： 本发明提供了一种阴离子交换膜水电解用电解质，包括碳质材料和电沉积在碳质材料上的镍，其中镍部分被铂取代，与铂取代相比，与铂取代相同的电催化剂相比，提供的析氢活性提高， 铂。 还提供了制备电极催化剂的方法和使用其的阴离子交换膜水电解槽。 涂覆有超低负载量的铂用于阴离子交换膜水电解的镍电催化剂显示出优异的析氢活性并具有小的催化剂厚度，从而提供高的传质和高的催化剂可用性。 此外，电极催化剂使用粒子型电极来促进放氢反应期间产生的氢气泡的发射和在析氧反应期间产生的氧气泡，并且需要低成本的制备以提供高成本效率。

公开(公告)号：US20140221192A1

公开(公告)日：2014-08-07

申请号：US14171906

申请日：2014-02-04

申请人： KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： Sung Jong YOO ,  Hee-young PARK ,  Jong Hyun JANG ,  Hyoung-Juhn KIM ,  Tae-Hoon LIM ,  Sang Young LEE ,  Sang Hyun AHN ,  Namgee JUNG ,  Suk Woo NAM ,  Eun Ae CHO

IPC分类号： H01M4/88 ,  H01M4/90

CPC分类号： H01M4/9083 ,  H01M4/9041 ,  H01M4/921 ,  H01M4/926 ,  Y02E60/50

摘要： The present disclosure relates to a method and an apparatus for preparing nanosized metal or alloy nanoparticles by depositing metal or alloy nanoparticles with superior size uniformity on the surface of a powder as a base material by vacuum deposition and then dissolving or melting the base material using a solvent or heat. The method solves the problems of the existing expensive multi-step synthesis method based on chemical reduction and allows effective synthesis of metal or alloy nanoparticles with very uniform size and metal or alloy catalyst nanoparticles supported on carbon at low cost.

摘要翻译： 本公开内容涉及一种通过在真空沉积作为基材的粉末表面上沉积具有优异尺寸均匀性的金属或合金纳米颗粒来制备纳米尺寸金属或合金纳米颗粒的方法和装置，然后使用 溶剂或热量。 该方法解决了基于化学还原的现有昂贵的多步合成方法的问题，并且能够有效合成具有非常均匀尺寸的金属或合金纳米颗粒，并以低成本负载在碳上的金属或合金催化剂纳米颗粒。