English
聯系我們
網站地圖
郵箱
舊版回顧



蘇州納米所等在石墨烯氣凝膠領域取得進展

文章來源:蘇州納米技術與納米仿生研究所   發布時間:2019-05-10  【字號:     】  

  石墨烯氣凝膠,經由石墨烯片層三維搭接、組裝而來的石墨烯宏觀體材料,具有三維連續多孔網絡結構,表現出高比表面積、高孔隙率、優異導電性能及電化學行為,在能源存儲、傳感、吸附、復合材料等領域有重要應用前景。然而,目前常規石墨烯氣凝膠的三維組裝以石墨烯片層間的“面-面”局部搭接方式為主,進而形成具有三維無規連續多孔網絡。石墨烯片層間的這種“面-面”堆垛-搭接方式,是一種無規、隨機組裝,往往會使得部分石墨烯片層形成類石墨結構,造成石墨烯本征性能(如比表面積、力學、電學等)損失。此外,傳統石墨烯氣凝膠所具有的這種無規三維多孔網絡還引入高界面電阻及曲折離子通道問題,對電化學行為中的電荷-離子傳輸及有效電化學活性面積維持帶來負面影響,成為制約石墨烯材料在電化學能源器件中應用的瓶頸。因此,如何設計新的石墨烯組裝策略,制備高性能石墨烯氣凝膠材料,仍是一個重要挑戰。

  針對石墨烯氣凝膠目前存在的問題,中國科學院蘇州納米技術與納米仿生研究所研究員張學同領導的氣凝膠團隊通過“局部氧化刻蝕”在氧化石墨烯片層上進行造孔,獲得孔洞氧化石墨烯,隨后將孔洞氧化石墨烯與還原劑分散液高度濃縮,實現其液晶化,進一步經原位溶膠凝膠及超臨界干燥獲得各向異性“孔洞石墨烯”氣凝膠,如圖所示。所得各向異性“孔洞石墨烯”氣凝膠由孔洞石墨烯片層經有序排列而成,表現出規整的三維多孔網絡(規整的孔道/孔壁及孔壁上的大量微孔)、低密度(42-55 mg cm-3)、高導電性(~165 S m-1)、高比表面積(537~837 m2 g-1)等諸多優點。最后將該氣凝膠作為電極材料,輔以共晶混合物“水-甲酰胺”作為低溫電解液,構建出可在溫度低至零下40°C的環境中正常工作的柱狀低溫熱電化學池,表現出低離子傳輸阻力(15.7 Ω)及高輸出功率(3.6 W m-2)。當15個熱電化學池進行串聯組裝成器件時,可實現~2.1 V電壓的穩定輸出,在低溫能源器件應用中表現出重要應用前景。

  相關成果以High-Efficiency Cryo-Thermocells Assembled with Anisotropic Holey Graphene Aerogel Electrodes and a Eutectic Redox Electrolyte 為題發表在國際期刊《先進材料》(Advanced Materials20191901403)上。博士生李廣勇、碩士董大鵬及澳門大學教授洪果為論文共同第一作者,張學同與英國UCL教授宋文輝為論文共同通訊作者,合作者還包括中國科學技術大學教授閆立峰。論文工作獲得國家重點研發計劃、國家自然科學基金委、英國皇家學會-牛頓高級學者基金等資助。

  圖:各向異性“孔洞石墨烯”氣凝膠基本表征:氧化石墨烯片層的透射電鏡照片(a1)及氧化石墨烯液晶的偏光顯微鏡照片(b1),孔洞氧化石墨烯片層的透射電鏡照片(a2)及氧化石墨烯液晶的偏光顯微鏡照片(b2),氧化石墨烯及孔洞氧化石墨烯片層的拉曼光譜(c),各向異性“孔洞石墨烯”氣凝膠的光學照片(d)、掃描電鏡照片(ef)、力學(g)、電學(h)及比表面積數據(i)。




(責任編輯:葉瑞優)

附件:

專題推薦

相關新聞


© 1996 - 中國科學院 版權所有 京ICP備05002857號  京公網安備110402500047號  聯系我們

地址:北京市三里河路52號 郵編:100864

PK彩票www.www.23040.com www.88680.com | www.17483.com | 059573.com | www.h55.tv | www.2334.vip | www.78527.com | www.874195.com | www.9499.xyz | www.324476.com | www.492492.com | www.895145.com | 949115.com | www.fn06.com | www.9029.cm | www.484605.com | www.lg03.com | www.009132.com | www.3578.xyz | www.58952.cc | www.222369.com | www.468676.com | www.nh18.com | www.25048.com | www.739481.com | 983497.com | 114399.com | 388756.com | www.6017.shop | www.572002.com | www.cai0588.com | www.5415.vip | 4919.cc | www.43052.com | www.360221.com | 金冠彩票www.49956p.com | www.v43.net | www.1116.vip | www.635182.com | www.71qc.com | www.069410.com | www.284203.com | www.441388.com | www.660486.com | www.712883.com | www.899014.com | www.990072.com | 029066.com | 607666.com | www.0714.vip | www.108760.com | www.443118.com | www.369982.com | www.984694.com | 916999.com | www.cz31.com | www.77172.com | www.572909.com | www.693371.com | 970658.com | www.2168.me | 109408.com | www.oq50.com | www.9457.top | www.234405.com | www.401702.com | www.916396.com | 598552.com | www.gh2.com | www.001212.cc | www.768959.com | www.256512.com | www.2438.pw | www.956085.com | 984295.com | 013696.com | 500彩票www.52072e.com | www.nd57.com | www.394644.com | www.798537.com | www.687730.com | www.955802.com | www.906731.com | www.790043.com | 56ig.com | 661990.com | www.uq82.com | www.997264.com | www.276657.com | www.0li.cc | www.996094.com | www.5272.me | www.985505.com | www.350566.com | www.04xn.com | www.872605.com | www.276778.com | www.736669.com | www.956560.com | www.wr99.com | www.tx13.com | 凤凰彩票www.88266l.com | www.yw59.com | www.6658.hk | www.20355.cc | www.681087.com | www.964810.com | www.5605.cc | www.579039.com | 173052.com | www.vd39.com | www.654897.com | 513667.com | www.kj.com | www.51ps.cc | www.35145.com | www.617598.com | 778991.com | www.df68.com | www.37709.com | www.784808.com | www.967556.com | www.wn79.com | www.8098.in | www.110700.com | www.865028.com | www.750462.com | www.99363.com | www.gu99.com | www.935900.com | www.c10.shop | www.fo97.com | www.31nb.com | www.yc92.com | 爱购彩票www.335240.com | www.eb49.com | www.19ar.com | www.900.name | www.022161.com | www.500017.cc | www.020.website | www.28174.com | www.108542.com | www.99536.cc | www.2683.net | www.170332.com | 210692.com | 天玺彩票www.490780.com | www.7ty.com | www.ut02.com | www.200017.cc | www.167696.com | www.707355.com | www.789780.com | www.219435.com | www.627322.com | www.7177.in | www.477333.com | www.900053.cc | www.c4.gg | www.071939.com | www.271315.com | www.831.cm | 68彩票www.68682g.com | www.883862.com | www.316605.com | www.1130.cc | www.220469.com | www.323258.com | 967940.com | www.780665.com | www.99oa.com | www.049995.com | www.276900.com | www.0626.org | www.84230.com | www.67833.com | www.670318.com | 974271.com | www.rf06.com | www.34436.com | www.137496.com | www.629151.com | www.93yr.com | www.399677.cc | 112351.com | 506236.com | 990290.com | www.eq50.com | www.167486.com | www.693827.com | www.os21.com | www.13ja.cc | www.984483.com | www.211195.com | www.46pj.cc | www.450780.com | www.660804.com | 484004.com | 大赢家彩票平台www.377653.com | www.025044.com | www.230026.com | 974549.com | www.958512.com | www.329772.com | www.yz10.com | www.84464.com | www.vl9.com | www.667844.com | www.010237.com | 973104.com | www.779716.com | www.055271.com | www.5259.wang | 855327.com | 947809.com | www.273922.cc | www.550802.com | www.859567.com | 237422.com | 363552.com | 七星乐www.535666e.com | www.895945.com | www.59669.com | www.889610.com | www.059566.com | www.061676.com | www.78711.cc | www.326583.com | www.275377.com | www.837311.com | 357710.com | 502670.com | www.zp56.com | www.69382.com | www.322905.com | www.08878.cc | 940600.com | 753388.com | www.106838.com | www.93171.cc | www.884348.com | www.cp9398.com | www.cp9.pw | www.cp9322.com | 033757.com--030663.com | www.623693.com | www.026329.com | www.122455.com | www.991413.com | www.492382.com | www.3882.xyz | www.949362.com | www.233590.com | www.110113.com | www.66292.cc | www.86zt.com | www.900618.com | www.966338.cc | 彩票5www.550420.com | www.vr62.com | www.03740.com | www.322319.com | 614499.com | www.36669.cc | www.105660.com | www.132005.com | www.501709.com | 381475.com | 554932.com | www.3147.vip | www.993747.com | www.566666.com | www.02483.com | 273262.com | www.622669.com | www.130367.com | www.68408.com | www.hc83.cc | 091575.com | www.396058.com | www.197001.com | www.vy90.com | www.560613.com | www.302414.com | www.9lb.com | 557573.com | www.732768.com | www.74939.com | www.xl4.com | 天天乐彩票www.126293.com | www.899629.com | www.129071.com | www.41fk.com | www.776001.com | www.495325.com | www.359573.com | www.054567.com | 博友彩www.979683.com | www.720228.com | www.206556.com | www.66rk.com | 大赢家彩票平台www.223085.com | www.676446.com | www.66330.com | www.498906.com | 优彩网www.987441.com | 912093.com | www.6281.biz | www.31mc.com | www.016410.com | www.128239.com | www.010395.com | 乐彩网www.lcw199.com | www.933865.com | www.76zx.com | www.2629.pw | www.188271.com | 472533.com | www.761064.com | www.829182.com | www.jt30.com | www.0731.net | www.126272.com | www.363512.com | www.458128.com | www.320377.com | www.fj65.com | 894382.com | www.533147.com | www.9507.vip | cp8022.com | www.509757.com | www.788215.com | 202273.com | 570344.com | www.a45.org | 购彩在线www.66332z.com | 58756.com | 021445.com | www.921129.cc | 112477.com | 5053.biz | 193339.com | 434991.com | 05ah.com | 368014.com | cp7026.com | www.054051.com | www.365435.cc | 875097.com | 500万彩票www.98528f.com | www.a24.com | www.98tb.com | www.92887.com | www.019777.com | www.520070.com | www.582717.com | 847116.com | www.062283.com | www.770612.com | www.82896.com | 404491.com | www.846959.com | www.067005.com | www.ft46.com | www.947321.com | www.138549.com | www.08gi.com | www.973995.com | www.341624.com | www.067.cn | www.530.red | www.53426.cc | www.299621.com | 518574.com | 861797.com | 181689.com | 637290.com | www.87844.com | 337573.com | 618451.com | www.692598.com | www.095166.com | 067206.com | www.695359.com | www.89722.cc | www.072916.com | 141838.com | www.583791.com | www.8912.cn | www.7242.cn | www.930606.com | www.356166.com | www.615166.com | www.739269.com | 456815.com | www.677977.com | www.81403.com | www.4rx.cc | www.911689.com | www.514469.com | www.6764.xyz | www.813647.com | 452772.com | www.788833.com | www.70007.com | www.yc.cc | www.624036.com | www.099052.com | qm9.com | www.201827.com | www.297953.com | www.pt4.com | www.wd67.com | www.27qf.com | www.03335.cc | www.76677.com | www.118857.com | www.282586.com | www.656556.com | 432868.com | 984798.com | www.uj88.com | www.08xr.com | www.568407.com | pi50.com | www.796335.com | www.084615.com | www.aw69.com | www.863989.com | www.hn26.com | www.29an.com | s99.cc | 646832.com | 126彩票网www.576126.com | www.64ks.com | www.53gf.com | www.0792.top | www.87381.com | www.397734.com | www.767967.com | 560386.com | www.863831.com | www.832235.com | www.92216.com | www.131716.com | www.603109.com | 097167.com | www.kh2.com | www.22mq.com | www.j24.cc | www.mg46.com | www.np80.com | www.d00.top | www.h28.net | www.ma64.com | www.1tv.com | www.60qz.com | www.10zm.com | www.3139.live | www.266.pw | www.1152.cn | www.5137.in | www.95gf.com | www.fc62.com | www.xw05.cc | www.84.cc | www.we74.com | www.cp451.com | 彩宝www.177888.com | 527662.com | 387566.com | 968149.com | 269091.com | 029839.com | 799154.com | 840372.com | www.971584.com | 426622.com | www.853685.com | www.987835.com | www.802284.com | 012140.com | www.370.date | www.3865.xyz | www.32578.com | www.39587.cc | www.1029.net | www.98gq.com | www.16bi.com | www.qr72.com | 大赢家彩票网www.54400v.com | 761148.com | 079448.com | 400645.com | 526523.com | www.50gy.com | www.2333.in | www.007410.com | www.35882.cc | www.250972.com | www.203198.com | www.959007.com | 037005.com--163a.com | www.154535.com | www.109034.com | www.098974.com | 7525.biz | 702909.com | 097624.com | www.dr99.com | www.0050.com | www.191254.com | www.298386.com | www.488043.com | www.550033.com | www.848369.com | www.ps41.com | www.0055.loan | www.302212.com | www.218684.com | www.263752.com | www.369462.com | www.223229.com | www.xd09.com | www.834307.com | www.058962.com | www.025397.com | www.55676.com | www.ha53.com | 485534.com | 513613.com | www.hy29.com | www.h11.org | www.c5.org | www.636160.com | www.374543.com | www.22016.cc | a789321.com | www.365047.com | www.89gr.com | 彩票58www.589196.com | 796413.com | www.799027.com | www.939226.com | www.431823.com | www.9754.cc | www.17qu.com | www.bz02.com | 55hz.cc | www.719400.com | 898034.com | 555340.cc | www.998938.com | www.787718.com | www.645896.com | www.678117.com | www.321844.com | www.222577.com | www.211956.com | www.93617.com | www.53277.cc | www.027967.com | www.024425.com | www.3227.win | www.0311.in | www.11310.com | www.4355.top | www.5806.live | www.03yc.com | www.lc31.com | 257244.com | 925161.com | 495155.com | 986275.com | www.gd06.com | www.69756.com | www.783216.cc | www.744618.com | www.857564.com | 884182.com | bet6161.com | 亿万彩票www.095005.com | www.85jx.com | www.x24.net | www.07507.cc | www.67113.cc | www.133409.com | www.516308.com | www.490195.com | www.466730.com | www.385253.com | www.606600.com | www.555837.com | www.vk37.com | www.6890.cc | www.420226.com | www.500711.cc | www.673991.com | www.895307.com | 679530.com | 299107.com | 716393.com | www.kj84.com | www.4995.biz | www.040768.com | www.81357.cc | www.639847.com | www.685214.com | www.642040.com | www.786226.com | www.974478.com | www.875931.com | www.789766.com | www.688084.com | www.599277.com | www.621499.com | www.900946.com | www.739592.com | www.744573.com | www.672411.com | www.598190.com | www.605698.com | www.643699.com | 023545.com | 910200.com | 785386.com | www.859561.com | www.947753.com | www.790259.com | www.650284.com | www.512378.cc | www.246960.com | www.639457.com | www.929310.com | www.663773.com | 211866.com | www.922137.com | www.729237.com | www.381562.com | www.579292.com | www.874947.com | www.944428.com | www.833066.com | 071959.com | www.931661.com | 7187.cc | www.977622.com | www.838664.com | www.957384.com | www.936619.com | www.800289.com | www.813623.com | www.cai9222.com | 698817.com | 964810.com | www.3459.cc | www.921827.com | www.879443.com | www.890099.com | www.687060.com | www.554594.com | www.333393.com | www.221990.com | www.099181.com | www.93896.cc | www.311283.com | www.346543.com | www.593722.com | www.789615.com | www.630776.com | www.967255.com | 615277.com | 616534.com | www.mf97.com | www.80dw.com | www.03yy.cc | 彩乐乐www.cll168.com | 664215.com | 60772.com | www.981294.com | 088162.com | 070661.com--163a.com | www.896557.com | www.587037.com | www.216654.com | www.44066.cc | 500万彩票www.07500w.com | www.468261.com | www.308155.com | www.58ly.com | www.3150.com | www.18ml.com | 人人彩票www.rrle9.com | 246008.com | 265751.com | 667347.com | www.994073.com | www.903996.com | www.745935.com | www.673690.com | www.642411.com | 034360.com | www.904716.com | 783109.com | www.945559.com | www.857322.com | www.812922.com | www.853283.com | www.h43439.com | www.948342.com | www.778561.com | www.848245.com | www.998122.com | www.817711.com | www.613145.com | www.291770.com | www.178765.com | www.319237.com | www.172196.com | www.257985.com | 085716.com | 551239.com | 355036.com | 050328.com | 718512.com | www.14bv.com | www.45pp.com | www.hj58.com | 562732.com | 657906.com | yy45.cc | www.979418.com | www.774645.com | www.868827.com | www.853829.com | www.633806.com | www.705630.com | www.368186.com | www.297822.com | www.053242.com | www.131848.com | www.88860.cc | www.06ne.com | www.87dm.com | www.36891.cc | www.41av.com | www.ol62.com | 455234.com | 721234.cc | www.656538.com | www.768789.com | www.711605.com | www.814421.com | 314989.com | www.942011.com | www.761124.com | 804126.com | www.869653.com | www.684877.com | www.245300.com | www.132336.com | www.425.tv | 大赢家彩票www.397411.com | www.505537.com | www.589644.com | www.337864.com | www.160771.com | www.170739.com | www.234857.com | www.066722.com | www.33937.com | www.0463.cc | www.35663.cc | www.3178.cm | www.vq86.com | www.hr62.com | www.cp45.com | 863069.com | 如意彩票www.889489.com | www.gv95.com | 692261.com | www.998240.com | www.838294.com | www.765979.com | www.092576.com | www.59881.com | www.26765.com | www.1290.in | www.04161.com | www.44ru.com | 6号彩票www.766602.com | 113479.com | 025087.com | www.868107.com | www.655403.com | www.659083.com | www.723799.com | www.569110.com | www.348020.com | www.216508.com | www.250960.com | www.124883.com | www.8001.pw | www.zs15.com | 686093.com | www.903332.com | www.604689.com | 688414.com | 971804.com | www.939945.com | www.948201.com | www.625859.com | www.530744.com | www.127419.com | www.2506.cm | 亿彩堂www.87668f.com | 彩多多www.78949y.com | 778531.com | www.792979.com | www.421062.com | www.013083.com | www.2855.pw | www.87871.com | www.88937.com | www.lh54.com | www.yz39.com | 774198.com | 87849.com | www.906802.com | www.615968.com | www.879740.com | www.654007.com | www.505226.com | www.334222.com | www.218497.com | www.124954.com | www.52517.cc | www.8620.biz | www.09uk.com | www.ju26.com | 众彩网www.88065a.com | 981968.com | 7hi.cc | www.099785.com | www.38624.com | 77733.com | www.062062.cc | www.6dj.cc | 617705.com | www.757510.com | www.183528.com | www.90258.com | 290027.com | www.382356.com | www.90ja.com | www.693228.com | www.81eq.com | www.668902.com | www.85288.cc | www.968506.com | www.213845.com | www.qh60.com | www.648149.com | www.017261.com | 654189.com | www.036505.com | 558457.com | www.345991.com | www.2kx.cc | www.614264.com | www.3984.cn | www.936808.com | www.36483.com | 968168.cc | www.283195.com | www.828795.com | 269565.com | 186871.com | www.904576.com | 982240.com | 409166.com | 954786.com | www.129611.com | 963056.com | www.192230.com | 348884.com | www.196111.com | 369641.com | www.856922.com | www.069853.com | 668140.com | www.110594.com | 974639.com | www.113043.com | www.124128.com | www.3786.biz | 971343.com | www.815717.com | www.74458.com | 福利彩8www.flcb2.com | www.331765.com | www.6576.cc | www.vy37.com | 640088.com | www.189220.com | www.4050.cc | 974582.com | www.122712.com | www.k24148.com | 583882.com | bt12.cc | www.928975.com | www.vl59.com | www.6779.com | www.102265.com | 573742.com | www.208983.com | bl41.com | www.nm73.com | 947042.com | www.813811.com | www.100735.com | www.tg48.com | www.808025.com | www.5066.cm | www.338167.com | www.81969.com | www.3816.biz | 026324.com | www.874386.com | www.901885.com | www.32zu.com | www.338138.com | www.66345.cc | www.37233.com | www.nt71.com | 501932.com | www.770901.com | www.266385.com | www.609081.com | www.625021.com | www.621155.com | www.622642.com | www.325885.com | www.325231.com | www.120787.com | www.42014.com | 74089.com | 420599.com | www.952779.com | www.598993.com | www.345670.com | www.005651.com | www.5014.biz | www.12ou.com | 128469.com | 119240.com | www.869023.com | www.780633.com | www.420043.com | www.381745.com | www.188652.com | www.90440.com | www.3181.in | www.fp63.com | 126415.com | www.960748.com | www.768888.com | www.900071.com | www.593373.com | www.357078.com | www.251532.com | www.527709.com | www.257215.com | www.87708.cc | www.44pc.com | 七乐彩www.700539.com | 616495.com | www.822732.com | www.780422.com | www.494304.com | www.906628.com | www.867169.com | www.505753.com | www.353639.com | www.086080.com | www.23ul.com | 493665.com | www.875233.com | www.466586.com | www.401605.com | www.864982.com | www.6941.vip | www.766791.com | www.95291.com | www.396323.com | www.496401.com | www.198950.com | www.88568.com | www.3694.vip | www.fp45.com | 450156.com | 547212.com | www.858173.com | www.xml400.com | www.916792.com | www.608536.com | www.730071.com | www.399711.com | www.395981.com | www.353581.com | www.404804.com | www.318799.com | www.175100.com | www.020496.com | www.3318.me | www.gj75.com | 通盈彩票www.567620.com | 794802.com | 9062.biz | www.897531.com | www.934795.com | www.718080.com | www.355546.com |