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公开(公告)号：US20160153098A1
公开(公告)日：2016-06-02
申请号：US14951885
申请日：2015-11-25
申请人： Ken Hackenberg , Kunttal Keyshar , Jingjie Wu , Yuanyue Liu , Pulickel Ajayan , Brandon Wood , Boris Yakobson
发明人： Ken Hackenberg , Kunttal Keyshar , Jingjie Wu , Yuanyue Liu , Pulickel Ajayan , Brandon Wood , Boris Yakobson
CPC分类号： C25B11/04 , C25B1/04 , C25B11/0478 , Y02E60/366
摘要： In some embodiments, the present disclosure pertains to methods of mediating a gas evolution reaction by exposing a gas precursor to an electrocatalyst that comprises a plurality of layers with catalytic sites. The exposing results in electrocatalytic conversion of the gas precursor to a gas. Thereafter, the generated gas enhances the electrocatalytic activity of the electrocatalyst by enhancing the accessibility of the catalytic sites to the gas precursor. In some embodiments, the electrocatalyst is associated with an electrically conductive surface (e.g., an electrode) that provides electrical current. In some embodiments, the electrocatalyst is a hydrogen production electrocatalyst that converts H+ to H2. In some embodiments, the electrocatalyst includes a transition metal dichalcogenide. Further embodiments of the present disclosure pertain to the aforementioned electrocatalysts for mediating gas evolution reactions.
摘要翻译： 在一些实施方案中，本公开内容涉及通过将气体前体暴露于包含多个具有催化位点的层的电催化剂来介导气体放出反应的方法。 曝光导致气体前体向气体的电催化转化。 此后，产生的气体通过增强对气体前体的催化位点的可及性来提高电催化剂的电催化活性。 在一些实施例中，电催化剂与提供电流的导电表面（例如，电极）相关联。 在一些实施方案中，电催化剂是将H +转化为H 2的氢气生产电催化剂。 在一些实施方案中，电催化剂包括过渡金属二硫属化物。 本公开的另外的实施方案涉及上述用于介导气体放出反应的电催化剂。
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公开(公告)号：US08562811B2
公开(公告)日：2013-10-22
申请号：US13416896
申请日：2012-03-09
IPC分类号： C25B3/00
CPC分类号： C25B3/00 , C25B1/003 , C25B3/04 , C25B9/08 , Y02P20/133
摘要： Methods for electrochemical production of formic acid are disclosed. A method may include, but is not limited to, steps (A) to (D). Step (A) may introduce water to a first compartment of an electrochemical cell. The first compartment may include an anode. Step (B) may introduce carbon dioxide to a second compartment of the electrochemical cell. The second compartment may include a solution of an electrolyte and a cathode. The cathode is selected from the group consisting of indium, lead, tin, cadmium, and bismuth. The second compartment may include a pH of between approximately 4 and 7. Step (C) may apply an electrical potential between the anode and the cathode in the electrochemical cell sufficient to reduce the carbon dioxide to formic acid. Step (D) may maintain a concentration of formic acid in the second compartment at or below approximately 500 ppm.
摘要翻译： 公开了电化学生产甲酸的方法。 方法可以包括但不限于步骤（A）至（D）。 步骤（A）可以将水引入电化学电池的第一隔室。 第一隔室可以包括阳极。 步骤（B）可以将二氧化碳引入电化学电池的第二隔室。 第二隔室可以包括电解质和阴极的溶液。 阴极选自铟，铅，锡，镉和铋。 第二隔室可以包括大约4和7之间的pH。步骤（C）可以在电化学电池中的阳极和阴极之间施加足以将二氧化碳还原成甲酸的电势。 步骤（D）可以将第二隔室中的甲酸浓度维持在等于或低于约500ppm。
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公开(公告)号：US20120228147A1
公开(公告)日：2012-09-13
申请号：US13416896
申请日：2012-03-09
CPC分类号： C25B3/00 , C25B1/003 , C25B3/04 , C25B9/08 , Y02P20/133
摘要： Methods and systems for electrochemical production of formic acid are disclosed. A method may include, but is not limited to, steps (A) to (D). Step (A) may introduce water to a first compartment of an electrochemical cell. The first compartment may include an anode. Step (B) may introduce carbon dioxide to a second compartment of the electrochemical cell. The second compartment may include a solution of an electrolyte and a cathode. The cathode is selected from the group consisting of indium, lead, tin, cadmium, and bismuth. The second compartment may include a pH of between approximately 4 and 7. Step (C) may apply an electrical potential between the anode and the cathode in the electrochemical cell sufficient to reduce the carbon dioxide to formic acid. Step (D) may maintain a concentration of formic acid in the second compartment at or below approximately 500 ppm.
摘要翻译： 公开了电化学生产甲酸的方法和系统。 方法可以包括但不限于步骤（A）至（D）。 步骤（A）可以将水引入电化学电池的第一隔室。 第一隔室可以包括阳极。 步骤（B）可以将二氧化碳引入电化学电池的第二隔室。 第二隔室可以包括电解质和阴极的溶液。 阴极选自铟，铅，锡，镉和铋。 第二隔室可以包括大约4和7之间的pH。步骤（C）可以在电化学电池中的阳极和阴极之间施加足以将二氧化碳还原成甲酸的电势。 步骤（D）可以将第二隔室中的甲酸浓度维持在等于或低于约500ppm。
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