| 204 | 0 | 83 |
| 下载次数 | 被引频次 | 阅读次数 |
金属有机框架(MOF)具有比表面积较大、形貌多样和金属中心丰富等优点。然而传统的以对苯二甲酸(BDC)为配体的MOF直接用作超级电容器电极材料时其比电容低、稳定性差。为此以双苯环有机配体2,6萘二羧酸(2,6NDC)为链接剂，采用简单高效的一步溶剂热法成功合成了超薄片状2D纳米阵列2,6NDC MOF材料，对其物相结构和表面形貌进行了表征分析，并探究了其电化学性能。结果表明，在电流密度为1 A·g-1下，基于2,6NDC的超薄片状2D纳米阵列MOF具有较高的比电容，为136.2 F·g-1,而以BDC为配体的MOF比电容只有53.9 F·g-1。以2,6NDC MOF构筑的超级电容器在电流密度0.5 A·g-1下的能量密度为28.2 W·h·kg-1,功率密度为1 650.7 W·kg-1,且在15 000次循环后依然有约125%的初始放电比容量，显示出优异的循环稳定性。
Abstract：Metal organic frameworks(MOFs) have advantages such as large specific surface area, diverse morphologies and abundant metal centers. However, when the traditional MOFs with terephthalic acid(BDC) as the ligand are directly used as the electrode material of supercapacitors, their specific capacitance is low and the stability is poor. By using the biphenylene ring organic ligand 2,6 naphthalene-dicarboxylic acid(2,6NDC) as a linker, the ultrathin sheet-like 2D nanoarrays of 2,6NDC MOFs materials were successfully synthesized by a simple and efficient one-step solvothermal method. The physical phase structure and surface morphology of the 2,6NDC MOFs materials were characterized and analyzed, and their electrochemical properties were explored. The results show that the ultrathin sheet-like 2D nanoarray MOFs based on 2,6NDC have a high specific capacitance of 136.2 F·g-1 at a current density of 1 A·g-1, while the specific capacitance of the MOFs with BDC as the ligand is only 53.9 F·g-1. The supercapacitor constructed with 2,6NDC MOFs has an energy density of 28.2 W·h·kg-1 and a power density of 1 650.7 W·kg-1 at a current density of 0.5 A·g-1, and still has an initial discharge specific capacity of about 125% after 15 000 cycles, showing excellent cycling stability.
[1] HE S X,GUO F J,YANG Q,et al.Design and fabrication of hierarchical NiCoP-MOF heterostructure with enhanced pseudocapacitive properties[J].Small,2021,17(21):2100353-1-2100353-11.
[2] HUSSAIN I,IQBAL S,HUSSAIN T,et al.Zn-Co-MOF on solution-free CuO nanowires for flexible hybrid energy storage devices[J].Materials Today Physics,2022,23:100655-1-100655-11.
[3] SAHOO R,GHOSH S,CHAND S,et al.Highly scalable and pH stable 2D Ni-MOF-based composites for high performance supercapacitor[J].Composites:B,2022,245:110174-1-110174-10.
[4] XIONG D,DENG X,CAO Z,et al.2D metal-organic frameworks for electrochemical energy storage[J].Energy & Environmental Materials,2022,0:e12521-1-e12521-17.DOI:10.1002/eem2.12521.
[5] BAUMANN A E,BURNS D A,LIU B Q,et al.Metal-organic framework functionalization and design strategies for advanced electrochemical energy storage devices[J].Communications Chemistry,2019,2(1):86-1-86-14.
[6] ZHANG H B,LI Z Y,HOU Z Y,et al.Self-assembly of MOF on MXene nanosheets and in-situ conversion into superior nickel phosphates/MXene battery-type electrode[J].Chemical Engineering Journal,2021,425:130602-1-130602-10.
[7] ZHOU J J,JI W X,XU L,et al.Controllable transformation of CoNi-MOF-74 on Ni foam into hierarchical-porous Co(OH)2/Ni(OH)2 micro-rods with ultra-high specific surface area for energy storage[J].Chemical Engineering Journal,2022,428:132123-1-132123-9.
[8] SHINDE P A,SEO Y,LEE S,et al.Layered manganese metal-organic framework with high specific and areal capacitance for hybrid supercapacitors[J].Chemical Engineering Journal,2020,387:122982-1-122982-11.
[9] 万月，宋美娜，赵美廷.二维金属有机框架纳米片的合成及在超电容和电催化领域的应用[J].高等学校化学学报，2021,42(2):575-594.
[10] KANG C X,MA L,CHEN Y C,et al.Metal-organic framework derived hollow rod-like NiCoMn ternary metal sulfide for high-performance asymmetric supercapacitors[J].Chemical Engineering Journal,2022,427:131003-1-131003-10.
[11] WU J S,RUI X H,LONG G K,et al.Pushing up lithium storage through nanostructured polyazaacene analogues as anode[J].Angew Chem Int Ed Engl,2015,54(25):7354-7358.
[12] HUANG L,ZHANG X P,HAN Y J,et al.In situ synthesis of ultrathin metal-organic framework nanosheets:a new method for 2D metal-based nanoporous carbon electrocatalysts[J].Journal of Materials Chemistry:A,2017,5(35):18610-18617.
[13] TONG M Y,LIU S W,ZHANG X,et al.Two-dimen-sional CoNi nanoparticles@S,N-doped carbon composites derived from S,N-containing Co/Ni MOFs for high performance supercapacitors[J].Journal of Materials Chemistry:A,2017,5(20):9873-9881.
[14] SHUAI C,MO Z L,NIU X H,et al.MOF-directed fabrication of nickel/cobalt bimetallic phosphides as robust electrocatalyst for oxygen evolution reaction[J].Journal of The Electrochemical Society,2020,167(2):026512-1-026512-9.
[15] QU C,JIAO Y,ZHAO B T,et al.Nickel-based pillared MOFs for high-performance supercapacitors:design,synthesis and stability study[J].Nano Energy,2016,26:66-73.
[16] CHENG W R,ZHAO X,SU H,et al.Lattice-strained metal-organic-framework arrays for bifunctional oxygen electrocatalysis[J].Nature Energy,2019,4(2):115-122.
[17] YANG X X,ZHAO S,ZHANG Z Z,et al.Pore structure regulation of hierarchical porous carbon derived from coal tar pitch via pre-oxidation strategy for high-performance supercapacitor[J].Journal of Colloid and Interface Science,2022,614:298-309.
[18] PAMEI M,KUMAR S,ACHUMI A G,et al.Supercapa-citive amino-functionalized cobalt and copper metal-organic frameworks with varying surface morphologies for energy storage[J].Journal of Electroanalytical Chemistry,2022,924:116885-1-116885-13.
[19] JIANG X Y,DENG S P,SUN L,et al.Pillared nickel-based metal-organic frameworks as electrode material with high electrochemical performance[J].Journal of Electro-analytical Chemistry,2020,879:114802-1-114802-10.
[20] SUNDRIYAL S,MISHRA S,DEEP A.Study of manganese-1,4-benzenedicarboxylate metal organic framework electrodes based solid state symmetrical supercapacitor[J].Energy Procedia,2019,158:5817-5824.
[21] 吴明霞，曹小卫，安仲勋，等.LiNi1/3Co1/3Mn1/3O2/AC混合超级电容器正负极容量配比研究[J].电子元件与材料，2011,30(1):34-37.
[22] HANG X X,XUE Y D,CHENG Y,et al.From Co-MOF to CoNi-MOF to Ni-MOF:a facile synthesis of 1D micro-/nanomaterials[J].Inorganic Chemistry,2021,60(17):13168-13176.
基本信息:
DOI：10.13250/j.cnki.wndz.2023.07.006
中图分类号:TM53;TB383.1
引用信息:
[1]刘羽,张海亮,王开鹰,等.基于2,6NDC的二维纳米阵列MOF材料的制备及其在超级电容器中的应用[J].微纳电子技术,2023,60(07):1027-1036.DOI:10.13250/j.cnki.wndz.2023.07.006.
基金信息:
山西省自然科学基金(20210302124334,20210302124421)
2023-07-15
2023-07-15