A silver-nanoparticle-catalyzed graphite composite for electrochemical energy storage

被引：20

作者：

He, Xingliang ^{[1
]}

Hubble, Dion ^{[2
]}

Calzada, Raul ^{[2
]}

Ashtamkar, Aalap ^{[1
]}

Bhatia, Deepak ^{[3
]}

Cartagena, Sergio ^{[1
]}

Mukherjee, Partha ^{[1
]}

Liang, Hong ^{[1
]}

机构：

[1] Texas A&M Univ, Dept Mech Engn, College Stn, TX 77843 USA

[2] Texas A&M Univ, Dept Chem Engn, College Stn, TX 77843 USA

[3] Texas A&M Univ, Dept Elect Engn, College Stn, TX 77843 USA

来源：

JOURNAL OF POWER SOURCES | 2015年 / 275卷

关键词：

Graphite composite; Silver nanoparticles; Catalysis; Pseudocapacitance; Electron/charge transfer; METAL-OXIDE; GOLD NANOPARTICLES; BATTERY ANODES; ION BATTERIES; LITHIUM; PERFORMANCE; TRANSITION; SUPERCAPACITOR; ELECTRODE; CHALLENGES;

D O I：

10.1016/j.jpowsour.2014.11.061

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new composite containing silver nanoparticles and graphite is developed in order to improve electrochemical energy storage. The nanocomposite uses silver (Ag) nanoparticles as a catalyst to enhance the electrochemical performance. Results indicate that the graphite composite decorated with Ag shows up to a six-fold improvement in specific capacitance. Electron/charge transfer is enhanced through a shift from double-layer to pseudocapacitive behavior, mediated by Li+ intercalation. Decoration with Ag nanoparticles allows for improvements in electrochemical impedance response, ease of electronic/ionic charging, and overall energy storage capability. This research provides a promising alternative solution for the next generation of safe and cost-effective lithium-ion devices. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：688 / 693

页数：6

共 51 条

[1]

[Anonymous], 2004, ANGEW CHEM, DOI DOI 10.1002/ANGE.200453703

[2] 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

[3] Building better batteries [J].

Armand, M. ;

Tarascon, J. -M. .

NATURE, 2008, 451 (7179) :652-657

[4] Flexible Zn2SnO4/MnO2 Core/Shell Nanocable-Carbon Microfiber Hybrid Composites for High-Performance Supercapacitor Electrodes [J].

Bao, Lihong ;

Zang, Jianfeng ;

Li, Xiaodong .

NANO LETTERS, 2011, 11 (03) :1215-1220

[5] Nanomaterials for rechargeable lithium batteries [J].

Bruce, Peter G. ;

Scrosati, Bruno ;

Tarascon, Jean-Marie .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2008, 47 (16) :2930-2946

[6] High-performance lithium battery anodes using silicon nanowires [J].

Chan, Candace K. ;

Peng, Hailin ;

Liu, Gao ;

McIlwrath, Kevin ;

Zhang, Xiao Feng ;

Huggins, Robert A. ;

Cui, Yi .

NATURE NANOTECHNOLOGY, 2008, 3 (01) :31-35

[7] α-Fe2O3 nanotubes in gas sensor and lithium-ion battery applications [J].

Chen, J ;

Xu, LN ;

Li, WY ;

Gou, XL .

ADVANCED MATERIALS, 2005, 17 (05) :582-+

[8] Preparation and Characterization of Flexible Asymmetric Supercapacitors Based on Transition-Metal-Oxide Nanowire/Single-Walled Carbon Nanotube Hybrid Thin-Film Electrodes [J].

Chen, Po-Chiang ;

Shen, Guozhen ;

Shi, Yi ;

Chen, Haitian ;

Zhou, Chongwu .

ACS NANO, 2010, 4 (08) :4403-4411

[9] TRANSITION FROM SUPERCAPACITOR TO BATTERY BEHAVIOR IN ELECTROCHEMICAL ENERGY-STORAGE [J].

CONWAY, BE .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1991, 138 (06) :1539-1548

[10] Carbon-Silicon Core-Shell Nanowires as High Capacity Electrode for Lithium Ion Batteries [J].

Cui, Li-Feng ;

Yang, Yuan ;

Hsu, Ching-Mei ;

Cui, Yi .

NANO LETTERS, 2009, 9 (09) :3370-3374

← 1 2 3 4 5 6 →