香港中文大学研发新型电解槽有效促进二氧化碳回收助实践碳中和目标

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中大研发新型电解槽有效促进二氧化碳回收助实践碳中和目标

指南者留学 2022-07-28 15:38:35 阅读量：1529

<p>指南者留学全国统一咨询热线：<a href="tel:4001831832" style="color:#1677ff; text-decoration:none;">400-183-1832</a>，全国各地区、各分公司联系方式均为此号码。</p><div data-page-id="doxcnk8Ixq2y7cbLpINzXmeoXXb" data-docx-has-block-data="true"> <div class="image-uploaded gallery old-record-id-doxcnGkws2cGSO8k04vKYNRlDcg" style="text-align: justify;" data-type="image" data-ace-gallery-json="{"items":[{"uuid":"69b45f16-7bcc-463c-897f-ad7661b8baad","height":1780,"width":2500,"currHeight":1780,"currWidth":2500,"natrualHeight":1780,"natrualWidth":2500,"pluginName":"imageUpload","scale":1,"src":"https%3A%2F%2Finternal-api-drive-stream.feishu.cn%2Fspace%2Fapi%2Fbox%2Fstream%2Fdownload%2Fall%2FboxcnGMhv2aJqmJef31kMfKzQdc%2F%3Fmount_node_token%3DdoxcnGkws2cGSO8k04vKYNRlDcg%26mount_point%3Ddocx_image","file_token":"boxcnGMhv2aJqmJef31kMfKzQdc","image_type":"image/png","size":2001491,"comments":[]}]}"><span class="p"><img src="https://info.compassedu.hk/sucai/content/1659339121036/1659339121036.png" width="808" height="575" /></span></div> <div class="ace-line ace-line old-record-id-doxcnUOiGk2QYEMassRDDUQA62c" style="text-align: justify;"><span class="p"> </span></div> <div class="ace-line ace-line old-record-id-doxcnOqsmsEK0sMe2QzW2NQWYAd" style="text-align: justify;"><span class="h6">王教授研究团队研发的酸性二氧化碳电解槽，能有效回收及转化二氧化碳，为化工制造业实践碳中和目标提供新路向。</span></div> <div class="ace-line ace-line old-record-id-doxcnasoUOMaWcyKuO4aYG7civd" style="text-align: justify;"><span class="p"> </span></div> <div class="image-uploaded gallery" style="text-align: justify;" data-type="image" data-ace-gallery-json="{"items":[{"uuid":"81111c65-d88d-4ffc-b102-a5a4793c716b","height":1278,"width":1705,"currHeight":1278,"currWidth":1705,"natrualHeight":1278,"natrualWidth":1705,"pluginName":"imageUpload","scale":1,"src":"https%3A%2F%2Finternal-api-drive-stream.feishu.cn%2Fspace%2Fapi%2Fbox%2Fstream%2Fdownload%2Fall%2FboxcnR9ef4lcdY6B5AhoqR8BQkg%2F%3Fmount_node_token%3DdoxcnmsO006uYkMmM2r7eNBfaod%26mount_point%3Ddocx_image","file_token":"boxcnR9ef4lcdY6B5AhoqR8BQkg","image_type":"image/png","size":1633948,"comments":[]}]}"><span class="p"><img src="https://info.compassedu.hk/sucai/content/1659339128711/1659339128711.png" width="808" height="605" /></span></div> <div class="ace-line ace-line old-record-id-doxcnsSSCciqqcQsyKSRSOD3NcE" style="text-align: justify;"><span class="p"> </span></div> <div class="ace-line ace-line old-record-id-doxcnSuwco0i8msIA65nCrQQiGc" style="text-align: justify;"><span class="p">香港中文大学（中大）化学系助理教授<strong>王莹教授</strong>领导的研究团队最近研发了一种新型电化学系统—酸性二氧化碳电解槽，可利用再生能源将二氧化碳（CO((2))）与水（H((2))O）转化成商用化工原材料，转化效率高达60%，有助化工产业实现低碳转型。研究成果最近已刊登在著名科学期刊《自然催化》上。</span></div> <div class="ace-line ace-line old-record-id-doxcnIOgYwSkc6eyyA7o0pRJJVw" style="text-align: justify;"><span class="p"> </span></div> <div class="ace-line ace-line old-record-id-doxcnEeMAumuWSGgokZNuUF8Vrh" style="text-align: justify;"><span class="p"><strong>目前CO</strong>((2))<strong>电解槽技术的碳利用效率甚低</strong></span></div> <div class="ace-line ace-line old-record-id-doxcny4UgW2QSEam2s1cXnKxGfe" style="text-align: justify;"><span class="p"> </span></div> <div class="ace-line ace-line old-record-id-doxcnaU02gMyOiQI6yr0x3v66tb" style="text-align: justify;"><span class="p">要减缓全球暖化的影响，除了减少温室气体排放外，降低大气中的CO((2))含量同样重要。全球有近八成的CO((2))排放量来自燃烧化石燃料，而日常生活中经常接触到的物品如化妆品、洗涤剂和塑胶等，皆由燃烧化石燃料后经化学合成得来的副产品。因此，发展碳捕获和转化技术，如电化学CO((2))还原反应（CO((2)) reduction reaction，CO((2))RR），将燃烧化石燃料排放出来的CO((2))回收转化为生产这些化工制品的原材料，被视为是减少对化石燃料依赖的重要方法之一。</span></div> <div class="ace-line ace-line old-record-id-doxcnEoEksAomMqkckPyPVdC5zg" style="text-align: justify;"><span class="p"> </span></div> <div class="ace-line ace-line old-record-id-doxcnIw8ICo0qCwOOGUaqln5S9b" style="text-align: justify;"><span class="p">目前电化学CO((2))RR多在碱性条件下进行，转化过程中有逾85%的CO((2))会被电解液消耗并产生碳酸盐，大量流失可使用的CO((2))。故化工业界往往需要利用额外能源及成本回收CO((2))并将其转化，碳利用率低至25%。</span></div> <div class="ace-line ace-line old-record-id-doxcnU6O4c4aGkeiaQnkX5Okmef" style="text-align: justify;"><span class="p"> </span></div> <div class="ace-line ace-line old-record-id-doxcncuAc6s2K00kQGkFudh805c" style="text-align: justify;"><span class="p"><strong>新型酸性CO</strong>((2))<strong>电解槽加入钯铜催化剂提升碳利用率</strong></span></div> <div class="ace-line ace-line old-record-id-doxcnOWuIaS4u6sWYywvCeBO7wf" style="text-align: justify;"><span class="p"> </span></div> <div class="ace-line ace-line old-record-id-doxcnayWee6GsuAyOQTIKGtGh9e" style="text-align: justify;"><span class="p">为提高碳利用效率，王教授与多伦多大学电子与计算机工程系团队合作，研发一种新型酸性CO((2))电解槽，有效抑制碳酸盐的形成，减少CO((2)) 在转化过程中流失。团队更加入钯铜催化剂（Palladium-Copper catalyst，Pd-Cu catalyst），以抑制酸性环境下产氢反应（hydrogen evolution reaction，HER）所带来的竞争反应，将碳利用率提升，令更多CO((2))转换成重要化工原料，如乙烯（Ethylene）。在电流密度为500 mA/cm((2)) 的条件下，新型酸性CO((2))电解槽系统能有效将CO((2))利用率提升至60%。</span></div> <div class="ace-line ace-line old-record-id-doxcnE8OueSAUOeMy8wj3p5PPXb" style="text-align: justify;"><span class="p"> </span></div> <div class="ace-line ace-line old-record-id-doxcn4O0k4UoAMq0gMtrG2ajW21" style="text-align: justify;"><span class="p">王教授说：「此项目能够打破当前碱性CO((2))RR电解槽碳利用率的上限。我们正在努力扩大原型制作，希望将技术产业化，为发展环保科技及绿色经济转型出一分力。”</span></div> <div class="ace-line ace-line old-record-id-doxcnCyU6CgGuE6CkkFpvURGA5g" style="text-align: justify;"><span class="p"> </span></div> <div class="ace-line ace-line old-record-id-doxcn6SsWuoS6mwgyK4XBZQ23Kd" style="text-align: justify;"><span class="p">研究论文全文：<a href="https://www.nature.com/articles/s41929-022-00788-1" target="_blank" rel="noopener">https://www.nature.com/articles/s41929-022-00788-1</a></span></div> <div class="ace-line ace-line old-record-id-doxcncuE6KGacMmquMtSXutytqf" style="text-align: justify;"><span class="p"> </span></div> <div class="ace-line ace-line old-record-id-doxcn8mO8k22YK2kCAQW9GVH4no" style="text-align: justify;"><span class="p"><strong>关于王莹教授</strong></span></div> <div class="ace-line ace-line old-record-id-doxcnAAEQIu4UOqywwr7E6lgDAf" style="text-align: justify;"><span class="p"> </span></div> <div class="ace-line ace-line old-record-id-doxcnmqke2WgWIcmgsvQWPY3cJd" style="text-align: justify;"><span class="p">王教授于2019年加入中大。她的研究小组一直专注于研究电催化的理解和装置工程。是次研究获得研究资助委员会下的杰出青年学者计划支持。</span></div> </div>

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