Battery-like behavior of Ni-ceria based systems: Synthesis, surface defects and electrochemical assessment
作者： Carlos Alberto Paskocimas , Allan Jedson Menezes de Araújo , Vinícius Dias Silva , Angel Roberta Oliveira de Sousa , João Paulo de Freitas Grilo
DOI: 10.1016/J.CERAMINT.2018.12.222
关键词:
摘要: Abstract NiO, CeO2 and respective composites are extensively used in energy storage devices due to mostly their high electrochemical activity. However, the assessment of battery-like behavior Ni-ceria based systems comprising (Ni or Gd)-doped ceria combined with NiO seems be neglected literature. In this work, ceria-based solid solutions composite powders were obtained by a co-precipitation synthesis method. The structure particle size calcined investigated X-ray diffractometry (XRD) field emission scanning electron microscopy (FESEM), respectively. Oxidative states inspected photoelectron spectroscopy (XPS). performance was evaluated cyclic voltammetry, galvanostatic charge-discharge impedance spectroscopy. Refinement XRD patterns showed that have nanosized crystallites mean particles within 20 – 70 nm revealed FESEM. improved specific capacity NiO-CeO2 electrode material (about 2.5 times higher than NiO-CGO at 5 mV s−1) is an increase Faradic reactions taken place on its surface fraction defects (namely Ni3+, Ce3+ oxygen vacancies), as determined XPS. superior also confirmed
sci-hub.se 参考文章(73)
J.P. Marcq, G. Wrobel, M.P. Sohier, A. D'Huysser, J.P. Bonnelle, Hydrogenation catalysts based on nickel and rare earth oxides Applied Catalysis A: General. ,vol. 101, pp. 73- 93 ,(1993) , 10.1016/0926-860X(93)80139-H
John Stringer, The Importance of Short-Circuit and Related Transport Processes in High-Temperature Oxidation Springer, Boston, MA. pp. 495- 517 ,(1974) , 10.1007/978-1-4615-8723-1_28
J. Rouquerol, O. Toft Sørensen, Sample controlled thermal analysis : origin, goals, multiple forms, applications and future Kluwer Academic Publishers. ,(2003)
Suqing Ci, Zhenhai Wen, Yuanyuan Qian, Shun Mao, Shumao Cui, Junhong Chen, NiO-Microflower Formed by Nanowire-weaving Nanosheets with Interconnected Ni-network Decoration as Supercapacitor Electrode Scientific Reports. ,vol. 5, pp. 11919- 11919 ,(2015) , 10.1038/SREP11919
Ke-Jing Huang, Ji-Zong Zhang, Jia-Lin Cai, Preparation of porous layered molybdenum selenide-graphene composites on Ni foam for high-performance supercapacitor and electrochemical sensing Electrochimica Acta. ,vol. 180, pp. 770- 777 ,(2015) , 10.1016/J.ELECTACTA.2015.09.016
Sk. Anirban, Tanmoy Paul, Abhigyan Dutta, Vacancy mediated ionic conduction in Dy substituted nanoceria: a structure–property correlation study RSC Advances. ,vol. 5, pp. 50186- 50195 ,(2015) , 10.1039/C5RA06730H
Daniel A. Macedo, Graziele L. Souza, Beatriz Cela, Carlos A. Paskocimas, Antonio E. Martinelli, Filipe M.L. Figueiredo, Fernando M.B. Marques, Rubens M. Nascimento, A versatile route for the preparation of Ni–CGO cermets from nanocomposite powders Ceramics International. ,vol. 39, pp. 4321- 4328 ,(2013) , 10.1016/J.CERAMINT.2012.11.014
Guofa Cai, Xu Wang, Mengqi Cui, Peter Darmawan, Jiangxin Wang, Alice Lee-Sie Eh, Pooi See Lee, Electrochromo-supercapacitor based on direct growth of NiO nanoparticles Nano Energy. ,vol. 12, pp. 258- 267 ,(2015) , 10.1016/J.NANOEN.2014.12.031
Xinquan Wang, Meiqing Shen, Jun Wang, Stefano Fabris, Enhanced Oxygen Buffering by Substitutional and Interstitial Ni Point Defects in Ceria: A First-Principles DFT+U Study Journal of Physical Chemistry C. ,vol. 114, pp. 10221- 10228 ,(2010) , 10.1021/JP101100F
Anis Allagui, Abdul Hai Alami, Elena A. Baranova, Rolf Wüthrich, Size-dependent capacitance of NiO nanoparticles synthesized with cathodic contact glow discharge electrolysis Journal of Power Sources. ,vol. 262, pp. 178- 182 ,(2014) , 10.1016/J.JPOWSOUR.2014.03.104