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type="text/css"></style> <div id="ct" class="ct2 wp cl"> <div class="mn"> <div class="bm_haa cl"> <div class="bm_h cl"> <a href="http://www.oecr.com/portal.php?mod=rss&catid=62" class="y xi2 rss" target="_blank" title="RSS">订阅</a><h1 class="xs2">文章</h1> </div></div> <div class="kjkjb"> <div class="bm vw" style="margin-bottom:0;"> <div class="h hm"> <div class="zxtoux"><img src="http://www.oecr.com/uc_server/avatar.php?uid=54876&size=small" /></div> <h1 class="ph">自愈薄膜可极大改善氢燃料电池的使用寿命 </h1> <p class="xg1"> 时间：2017-3-30 10:43<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(847)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=5554&idtype=aid" title="查看全部评论"><em id="_commentnum">5</em></a></p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=62" class="y xi2 rss" target="_blank" title="RSS">订阅</a></div> </div> <!--[diy=diysummarytop]--><div id="diysummarytop" class="area"></div><!--[/diy]--> <div class="s"> <div class="ss"><div><span>导读： </span>好消息是，特拉华大学的研究人员们已经开发出了一种可以自愈的薄膜，有主于延长氢燃料电池的使用寿命。这种自愈薄膜含有满是电解质的微胶囊，可在压力下破裂并堵住孔洞。</div> </div> <!--[diy=diysummarybottom]--><div id="diysummarybottom" class="area"></div><!--[/diy]--> <div class="d"> <!--[diy=diycontenttop]--><div id="diycontenttop" class="area"></div><!--[/diy]--> <table cellpadding="0" cellspacing="0" class="vwtb"><tr><td id="article_content"><div> 生物的伤口可以愈合，但是将这个概念运用到<a href="http://material.oecr.com" target="_blank" class="relatedlink">材料</a>上的难度就变得有些不同了。</div><div><br></div><div> 好消息是，特拉华大学的研究人员们已经开发出了一种可以自愈的<a href="http://opticalfilm.oecr.com" target="_blank" class="relatedlink">薄膜</a>，有主于延长氢燃料电池的使用寿命。</div><div><br></div><div> <font color="#f00000"><b> 这种自愈薄膜含有满是电解质的微胶囊，可在压力下破裂并堵住孔洞。除了氢燃料电池，这项技术还有望在自修复<a href="http://electronic.oecr.com" target="_blank" class="relatedlink">电子</a><a href="http://b.oecr.com/sell" target="_blank" class="relatedlink">产品</a>、绘画、甚至宇宙飞船船体上得到应用。</b></font></div><div><br></div><div><p style="text-align: center;"><a href="data/attachment/portal/201703/30/104216ceev6e53s88xvv5j.jpg" target="_blank"><img src="data/attachment/portal/201703/30/104216ceev6e53s88xvv5j.jpg"></a></p></div><div><br></div><div style="text-align: center;"> 在一块氢燃料电池中，经常会用到全氟磺酸薄膜，但它很容易破损。</div><div><br></div><div> 它像像三明治一样两边夹在阴极和阳极之间，但是随着时间的推移，它会在使用过程中会慢慢磨损破裂。结果就产生了裂缝和孔洞，让氢气和氧气直接接触，造成彼此和整个电芯的损伤。</div><div><br></div><div> 项目研究人员 Suresh Advani 表示：“遗憾的是，检测薄膜的好坏几乎是不可能的。唯一的解决方案是整个替换组装好的膜电极，但操作成本相当高昂”。</div><div><br></div><div><p style="text-align: center;"><a href="data/attachment/portal/201703/30/104231nfgz82ftmmfkfmmv.jpg" target="_blank"><img src="data/attachment/portal/201703/30/104231nfgz82ftmmfkfmmv.jpg"></a></p></div><div><br></div><div style="text-align: center;"> 为了让燃料电池可以长期稳定使用，特拉华大学研究团队开发出了一种自愈薄膜。</div><div><br></div><div> <font color="#f00000"><b>这种自愈薄膜可以修复大多数问题，原理和包含了微囊剂的自修复聚合物、混凝土、以及绘画差不多。在遭遇压力时，这些微囊剂会破裂流出并堵住孔洞。</b></font></div><div><br></div><div> 而在此例中，研究人员使用了充满电解质的小气泡。在经过长达 220 小时的耐久性试验之后，研究人员发现这种微囊剂可以极大改善薄膜的使用寿命，从而缓解燃料电池所面临的这一难题。</div><div><br></div><div> 有关这项研究的详情，已经刊登在近日出版的《电化学会》（Journal of the Electrochemical Society）期刊上。</div><div><br></div><div><p style="text-align: center;"><a href="data/attachment/portal/201703/30/104301s3rhgwjeg1tjq2w4.jpg" target="_blank"><img src="data/attachment/portal/201703/30/104301s3rhgwjeg1tjq2w4.jpg"></a></p><p style="text-align: center;"><br></p><p style="text-align: center;"><span style="line-height: 25.2px;">欢迎关注光电<a href="http://news.oecr.com" target="_blank" class="relatedlink">资讯</a>微信公众号，每天将由光电工程师<a href="http://club.oecr.com" target="_blank" class="relatedlink">社区</a>网站(oecr.com)编辑团队为您精选行业动态，科技资讯，技术解析，光电<a href="http://www.oecr.com/portal.php?mod=list&catid=62" target="_blank" class="relatedlink">科普</a>等精彩内容，欢迎交换友情链接</span><span style="line-height: 25.2px;">(</span><b style="line-height: 25.2px;"><a href="http://bbs.oecr.com/thread-270693-1-1.html">查看详情</a></b><span style="line-height: 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name="comment_anchor_11972"></a> <dl id="comment_11972_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(11972, '5554');">引用</a> </span> <a href="http://club.oecr.com/space-uid-85747.html" class="xi2 xw1" c="1">feixiangxiaoche</a> <span class="xg1 xw0">2017-3-30 20:06</span> </dt> <dd>广告位，，坐下看看</dd> </dl><a name="comment_anchor_11968"></a> <dl id="comment_11968_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(11968, '5554');">引用</a> </span> <a href="http://club.oecr.com/space-uid-52730.html" class="xi2 xw1" c="1">sunjingyu</a> <span class="xg1 xw0">2017-3-30 18:05</span> </dt> <dd>楼下的接上</dd> </dl><a name="comment_anchor_11962"></a> <dl id="comment_11962_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(11962, '5554');">引用</a> </span> <a 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