公开(公告)号：US20150162622A1

公开(公告)日：2015-06-11

申请号：US14417212

申请日：2013-06-10

申请人： PAUL SCHERRER INSTITUT ,  TECHNISCHE UNIVERSITAET DRESDEN

发明人： Alexander Eychmueller ,  Annette Foelske-Schmitz ,  Nikolai Gaponik ,  Anne-Kristin Herrmann ,  Ruediger Koetz ,  Wei Liu ,  Annette Rabis ,  Perez Paramaconi Benito Rodriguez ,  Thomas Justus Schmidt ,  Jipei Yuan

IPC分类号： H01M4/90 ,  H01M12/08 ,  C25B11/04 ,  H01M4/92

CPC分类号： H01M4/9041 ,  C25B1/04 ,  C25B3/04 ,  C25B11/04 ,  H01M4/92 ,  H01M4/921 ,  H01M4/928 ,  H01M12/06 ,  H01M12/08 ,  H01M2008/1095 ,  Y02E60/366

摘要： A catalyst is to avoid the corrosion of a support and still have an active surface area of more than 30 m2/gmetal, preferably more than 50 m2/gmetal, particularly preferably more than 70 m2/gmetal. It has a high dispersion, achieving high stability and high activity (selectivity). A large-surface-area, unsupported catalyst has at least one metal for electrochemical processes, and a BET surface area of at least 30 m2/g, preferably more than 50 m2/g. The BET surface area is achieved by an arrangement of the at least one metal formed as a metal aerogel. Metal aerogels are produced in this manner. Metal aerogels, or metallic polymers, are fine-structured, inorganic superlattices having high porosity. In these metallic polymers, ince individual particles in the nanometer range typically are crosslinked with each other and form the highly porous network structures.

摘要翻译： 催化剂是避免支撑体的腐蚀，并且还具有大于30m 2 / g金属，优选大于50m2 / g金属，特别优选大于70m2 / g金属的活性表面积。 它具有高分散性，实现高稳定性和高活性（选择性）。 大面积的未负载的催化剂具有至少一种用于电化学工艺的金属，并且BET表面积至少为30m 2 / g，优选大于50m 2 / g。 BET表面积通过形成为金属气凝胶的至少一种金属的排列来实现。 以这种方式生产金属气凝胶。 金属气凝胶或金属聚合物是具有高孔隙率的精细结构的无机超晶格。 在这些金属聚合物中，纳米范围内的单个颗粒通常彼此交联并形成高度多孔网状结构。

公开(公告)号：US20220251721A1

公开(公告)日：2022-08-11

申请号：US17612018

申请日：2020-05-13

申请人： Paul Scherrer Institut

发明人： Lorenz Gubler ,  Ugljesa Babic ,  Thomas Justus Schmidt ,  Steffen Garbe

IPC分类号： C25B13/08 ,  C25B1/04

摘要： A method of preparing an ionomer of an ion exchange membrane with a recombination catalyst to prevent gas crossover of species, such as hydrogen and/or oxygen, to anodic and cathodic cell compartments of an electrochemical cell. An ionomer of an ion exchange membrane is prepared with a recombination catalyst. The ionomer is a proton or anion exchange polymer and the recombination catalyst, selected from the precious metals group, is provided in ionic form in a liquid metal salt solution. The ion exchange membrane is immersed into the liquid metal salt solution to exchange ionic ionomer ports with the ionic form of the recombination catalyst. The membrane is then assembled in the electrochemical cell and the ionic form of the recombination catalyst is at least partly reduced to metallic form by forcing hydrogen to permeate through the ionomer of the ion exchange membrane.