Sustainable Energy‐Storage Materials from Lignin–Graphene Nanocomposite‐Derived Porous Carbon Film

Tran Chau D.; Ho Hoi Chun; Keum Jong K.; Chen Jihua; Gallego Nidia C.; Naskar Amit K.

摘要

Abstract > A simple, green approach to fabricating porous free‐standing carbon films is presented. An alkaline solution of low‐cost, renewable lignin and graphene oxide (GO) is cast, followed by simultaneous carbonization and activation. Lignin, which is the least valued product from several biomass processing industries, is an efficient source of carbon when used as an intercalating agent to separate graphene sheets derived from homogeneous GO/lignin nanocomposite films prepared from an aqueous alkaline (KOH) solution. After thermal treatment the GO/lignin films show complete dispersion of reduced GO sheets within amorphous lignin‐derived carbon. The presence of KOH in the film produces activated carbon. These activated carbon films display a specific surface area of up to 1744?m 2 ?g ?1 and consist of a balance of pore volumes with pore sizes below and above 1?nm. A two‐electrode supercapacitor composed of these films in an aqueous electrolyte exhibits near‐ideal capacitive behavior at an ultrahigh scan rate of 1?V?s ?1 , while maintaining an excellent specific capacitance of 162?F?g ?1 . Such outstanding performance of renewable carbon as a supercapacitor, in addition to the ease of electrode fabrication from a precursor containing 85?% lignin, offers a novel method for valorization of lignin‐rich byproduct streams from biomass processing industries. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><abstract xmlns =“http://www.wiley.com/namespaces/wiley”type =“main”xml：lang =“en”> <title type =“main”>抽象</ title> >一个简单，提出了制造多孔独立碳膜的绿色方法。铸造低成本，可再生木质素和氧化石墨烯（GO）的碱性溶液，然后同时碳化和活化。作为来自多种生物质加工行业的最不具有价值产品的木质素，是当用作嵌入剂以单独从碱性碱（KOH）溶液制备的均匀GO /木质素纳米复合膜的石墨烯片来分离衍生的石墨烯片。热处理后，GO /木质素薄膜显示无定形木质素衍生的碳中的降低的纸张的完全分散。膜中的KOH的存在产生活性炭。这些活性炭膜显示出高达1744Ω·m 2 </ sup>αgα1</ sup>的特定表面积，并由下面和高于1的孔径的孔隙体积的平衡组成？ nm。在含水电解质中的这些薄膜组成的双电极超级电容器以1·VΔS 1 </ sup>的超高扫描速率呈现近乎理想的电容性能，同时保持162°F的优异特定电容？g ？1 </ sup>。除了来自含有85μlGiGnin的前体的电极制造之外，可再生碳的这种优异性能为超级电容器，提供了一种从生物量加工行业的富含木质素的副产品流的新方法。 </ p> </ abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" > 著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-22585/'>《Energy Technology: Generation,Conversion,Storage,Distribution 》</a> <b style="margin: 0 2px;">|</b><span>2017年第11期</span><b style="margin: 0 2px;">|</b> <span>共9页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Tran Chau D.&option=202" target="_blank" rel="nofollow">Tran Chau D.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Ho Hoi Chun&option=202" target="_blank" rel="nofollow">Ho Hoi Chun;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Keum Jong K.&option=202" target="_blank" rel="nofollow">Keum Jong K.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Chen Jihua&option=202" target="_blank" rel="nofollow">Chen Jihua;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Gallego Nidia C.&option=202" target="_blank" rel="nofollow">Gallego Nidia C.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Naskar Amit K.&option=202" target="_blank" rel="nofollow">Naskar Amit K.;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Materials Science and Technology DivisionOak Ridge National LaboratoryOak Ridge TN 37831 USA;</p> <p>Materials Science and Technology DivisionOak Ridge National LaboratoryOak Ridge TN 37831 USA;</p> <p>Center for Nanophase Materials ScienceOak Ridge National LaboratoryOak Ridge TN 37831 USA;</p> <p>Center for Nanophase Materials ScienceOak Ridge National LaboratoryOak Ridge TN 37831 USA;</p> <p>Materials Science and Technology DivisionOak Ridge National LaboratoryOak Ridge TN 37831 USA;</p> <p>Materials Science and Technology DivisionOak Ridge National LaboratoryOak Ridge TN 37831 USA;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li> <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span> <a href="https://www.zhangqiaokeyan.com/clc/233.html" title="能源与动力工程">能源与动力工程 ;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=electrochemistry&option=203" rel="nofollow">electrochemistry;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=energy storage&option=203" rel="nofollow">energy storage;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=graphene&option=203" rel="nofollow">graphene;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=nanostructures&option=203" rel="nofollow">nanostructures;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=thin films&option=203" rel="nofollow">thin films;</a> </p> <div class="translation"> 机译：电化学;能量存储;石墨烯;纳米结构;薄膜; </div> </li> </ul> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" 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