Potential-Induced Electronic Structure Changes in Supercapacitor Electrodes Observed by In Operando Soft X-Ray Spectroscopy

被引：27

作者：

Bagge-Hansen, Michael ^{[1
]}

Wood, Brandon C. ^{[1
]}

Ogitsu, Tadashi ^{[1
]}

Willey, Trevor M. ^{[1
]}

Tran, Ich C. ^{[1
]}

Wittstock, Arne ^{[1
]}

Biener, Monika M. ^{[1
]}

Merrill, Matthew D. ^{[1
]}

Worsley, Marcus A. ^{[1
]}

Otani, Minoru ^{[2
]}

Chuang, Cheng-Hao ^{[3
]}

Prendergast, David ^{[4
]}

Guo, Jinghua ^{[3
]}

Baumann, Theodore F. ^{[1
]}

van Buuren, Tony ^{[1
]}

Biener, Juergen ^{[1
]}

Lee, Jonathan R. I. ^{[1
]}

机构：

[1] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94550 USA

[2] Natl Inst Adv Ind Sci & Technol, Nanosyst Res Inst, Tsukuba, Ibaraki, Japan

[3] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source Div, Berkeley, CA 94720 USA

[4] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Mol Foundry, Berkeley, CA 94720 USA

来源：

ADVANCED MATERIALS | 2015年 / 27卷 / 09期

关键词：

ABSORPTION FINE-STRUCTURE; ELECTROCHEMICAL CAPACITORS; QUANTUM CAPACITANCE; SUBNANOMETER PORES; UNDULATOR BEAMLINE; CARBON ELECTRODES; LIQUID INTERFACES; IN-SITU; GRAPHENE; GAS;

D O I：

10.1002/adma.201403680

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The dynamic physiochemical response of a functioning graphene-based aerogel supercapacitor is monitored in operando by soft X-ray spectroscopy and interpreted through ab initio atomistic simulations. Unanticipated changes in the electronic structure of the electrode as a function of applied voltage bias indicate structural modifications across multiple length scales via independent pseudocapacitive and electric double layer charge storage channels.

引用

页码：1512 / +

页数：8

共 49 条

[1] Nanostructured materials for advanced energy conversion and storage devices [J].

Aricò, AS ;

Bruce, P ;

Scrosati, B ;

Tarascon, JM ;

Van Schalkwijk, W .

NATURE MATERIALS, 2005, 4 (05) :366-377

[2] In situ tracking of the nanoscale expansion of porous carbon electrodes [J].

Arruda, Thomas M. ;

Heon, Min ;

Presser, Volker ;

Hillesheim, Patrick C. ;

Dai, Sheng ;

Gogotsi, Yury ;

Kalinin, Sergei V. ;

Balke, Nina .

ENERGY & ENVIRONMENTAL SCIENCE, 2013, 6 (01) :225-231

[3] Electrokinetics in nanochannels. Part I. Electric double layer overlap and channel-to-well equilibrium (vol 325, pg 526, 2008) [J].

Baldessari, Fabio ;

Santiago, Juan G. .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2009, 331 (02) :549-549

[4] CARBON-1S NEAR-EDGE-ABSORPTION FINE-STRUCTURE IN GRAPHITE [J].

BATSON, PE .

PHYSICAL REVIEW B, 1993, 48 (04) :2608-2610

[5] Macroscopic 3D Nanographene with Dynamically Tunable Bulk Properties [J].

Biener, Juergen ;

Dasgupta, Subho ;

Shao, Lihua ;

Wang, Di ;

Worsley, Marcus A. ;

Wittstock, Arne ;

Lee, Jonathan R. I. ;

Biener, Monika M. ;

Orme, Christine A. ;

Kucheyev, Sergei O. ;

Wood, Brandon C. ;

Willey, Trevor M. ;

Hamza, Alex V. ;

Weissmueller, Joerg ;

Hahn, Horst ;

Baumann, Theodore F. .

ADVANCED MATERIALS, 2012, 24 (37) :5083-5087

[6] Strain-Based In Situ Study of Anion and Cation Insertion into Porous Carbon Electrodes with Different Pore Sizes [J].

Black, Jennifer M. ;

Feng, Guang ;

Fulvio, Pasquale F. ;

Hillesheim, Patrick C. ;

Dai, Sheng ;

Gogotsi, Yury ;

Cummings, Peter T. ;

Kalinin, Sergei V. ;

Balke, Nina .

ADVANCED ENERGY MATERIALS, 2014, 4 (03)

[7]

Chmiola J, 2006, SCIENCE, V313, P1760, DOI 10.1126/science/1132195

[8] Desolvation of ions in subnanometer pores and its effect on capacitance and double-layer theory [J].

Chmiola, John ;

Largeot, Celine ;

Taberna, Pierre-Louis ;

Simon, Patrice ;

Gogotsi, Yury .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2008, 47 (18) :3392-3395

[9] Dynamic Control Over Electronic Transport in 3D Bulk Nanographene via Interfacial Charging [J].

Dasgupta, Subho ;

Wang, Di ;

Kuebel, Christian ;

Hahn, Horst ;

Baumann, Theodore F. ;

Biener, Juergen .

ADVANCED FUNCTIONAL MATERIALS, 2014, 24 (23) :3494-3500

[10]

Deschamps M, 2013, NAT MATER, V12, P351, DOI [10.1038/nmat3567, 10.1038/NMAT3567]

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