Bio-templated fabrication of three-dimensional network activated carbons derived from mycelium pellets for supercapacitor applications.
Bio-templated fabrication of three-dimensional network activated carbons derived from mycelium pellets for supercapacitor applications.
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用于超级电容器应用的来自菌丝体颗粒的三维网络活性炭的生物模板制造
DOI：
10.1038/s41598-017-18895-6
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发表时间：
2018-01-12
影响因子：
4.6
通讯作者：
Meng T
中科院分区：
文献类型：
--
作者：
Hao J;Huang Y;He C;Xu W;Yuan L;Shu D;Song X;Meng T
本工作以菌丝体颗粒为碳源和生物模板，通过简单的生物模板法制备了三维多孔菌丝体衍生活性碳(3D-MAC)。经氯化锌活化和高温炭化处理后，可有效保持球团中菌丝体特有的线状链状结构。交联菌丝的菌丝和连接处形成纳米线和碳纳米颗粒，这些纳米颗粒与邻近的纳米颗粒连接形成网络结构。通过加入NH4Cl，制得了外源氮元素掺杂(N掺杂)的3D-MAC，其具有由微孔和大孔组成的层次型多孔结构。氯化锌的活化、特殊的三维结构和吹气使其具有多重孔径分布。同时，在非本征N掺杂的3D-MAC中引入了一些亲水基团和丰富的含N官能团，分别有助于提高法拉第伪电容。其比电容为237.2 F g−1at 10 MV S−1，是3D-MAC的1.5倍以上。即使在500 MV S−1的大扫描速率下，N掺杂的3D-MAC仍然呈现出近乎对称的矩形形状，由于其三维分层多孔结构和各种官能团的协同作用，显示出作为高性能超级电容器电极材料的巨大潜力。
In this work, a three-dimensional porous mycelium-derived activated carbon (3D-MAC) was fabricated via a facile bio-templating method using mycelium pellets as both the carbon source and the bio-template. After ZnCl2activation and high-temperature carbonization, the specific thread-like chain structure of mycelium in the pellets can be maintained effectively. The hyphae and junctions of the cross-linking hyphae form nanowires and carbon nanoparticles that link with the neighboring nanoparticles to form a network structure. By adding NH4Cl, foreign nitrogen element doped (N-doped) 3D-MAC was obtained, which has a hierarchical porous structure composed of micropores and macropores. And the multiple pore size distribution benefits from ZnCl2activation, the specific 3D structure and gas blowing. Meanwhile, the introduction of some hydrophilic groups and abundant N-containing functional groups in extrinsic N-doped 3D-MAC contributes to improving the Faradaic pseudocapacitance, respectively. A specific capacitance of 237.2 F g−1at 10 mV s−1was displayed, which is more than 1.5 times that of 3D-MAC. Even at the large scan rate of 500 mV s−1, N-doped 3D-MAC still reveals a nearly symmetric rectangular shape, demonstrating great potential as a high-performance supercapacitor electrode material due to the synergistic effects of its 3D hierarchical porous structure and various functional groups.
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影响因子：
32.5
作者：
Biswal, Mandakini;Banerjee, Abhik;Ogale, Satishchandra
通讯作者：
Ogale, Satishchandra
影响因子：
10.9
作者：
Hwang, Yun-Hwa;Lee, Sun Min;Lee, Kwanghee
通讯作者：
Lee, Kwanghee
影响因子：
13.6
作者：
Arica, M. Yakup;Bayramoglu, Guelay
通讯作者：
Bayramoglu, Guelay
影响因子：
17.6
作者：
Lin, Ziyin;Waller, Gordon H.;Wong, Ching-ping
通讯作者：
Wong, Ching-ping
影响因子：
10.9
作者：
Ahmadpour, A;Do, DD
通讯作者：
Do, DD