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Featured researches published by Jia-jia Chen.


Chemsuschem | 2015

An Amorphous Carbon Nitride Composite Derived from ZIF-8 as Anode Material for Sodium-Ion Batteries

Jingmin Fan; Jia-jia Chen; Qian Zhang; Binbin Chen; Jun Zang; Mingsen Zheng; Quanfeng Dong

An composite comprising amorphous carbon nitride (ACN) and zinc oxide is derived from ZIF-8 by pyrolysis. The composite is a promising anode material for sodium-ion batteries. The nitrogen content of the ACN composite is as high as 20.4 %, and the bonding state of nitrogen is mostly pyridinic, as determined by X-ray photoelectron spectroscopy (XPS). The composite exhibits an excellent Na(+) storage performance with a reversible capacity of 430 mA h g(-1) and 146 mA h g(-1) at current densities of 83 mA g(-1) and 8.33 A g(-1) , respectively. A specific capacity of 175 mA h g(-1) was maintained after 2000 cycles at 1.67 A g(-1) , with only 0.016 % capacity degradation per cycle. Moreover, an accelerating rate calorimetry (ARC) test demonstrates the excellent thermal stability of the composite, with a low self heating rate and high onset temperature (210 °C). These results shows its promise as a candidate material for high-capacity, high-rate anodes for sodium-ion batteries.


Journal of The Electrochemical Society | 2010

Electrochemical Performance of the LiNi1 / 3Co1 / 3Mn1 / 3O2 in Aqueous Electrolyte

Jun Zheng; Jia-jia Chen; Xin Jia; Jie Song; Chong Wang; Mingsen Zheng; Quanfeng Dong

NSFC [200933005, 20903077]; National 973 Program [2009CB220102]; Fujian province [2008H0087]


Journal of Materials Chemistry | 2014

Hierarchical structure LiFePO4@C synthesized by oleylamine-mediated method for low temperature applications

Jingmin Fan; Jia-jia Chen; Yongxiang Chen; Haihong Huang; Zhikai Wei; Mingsen Zheng; Quanfeng Dong

In this paper, a hierarchical nanostructure LiFePO4@C composite was firstly fabricated by an oleylamine mediated method. The oleylamine played a multifunctional role in restricting the particle size and forming the porous nano-structure of LiFePO4@C composite. Benefiting from its hierarchical structure, LiFePO4@C exhibited superior electrochemical performance, especially at low temperature. It can deliver a capacity of 117 mA h g−1 at a current density of up to 700 mA g−1 (about 5 C) at −20 °C.


RSC Advances | 2014

Polyvinyl pyrrolidone-assisted synthesis of a Fe3O4/graphene composite with excellent lithium storage properties

Mochao Cai; Hang Qian; Zhikai Wei; Jia-jia Chen; Mingsen Zheng; Quanfeng Dong

This paper reports a weak interaction between metal oxide and graphene in the Fe3O4/graphene composite, which results in the superior electrochemical performance.


Advanced Materials Research | 2012

The Enhanced Electrochemical Performance of Lithium/Sulfur Battery with Protected Lithium Anode

Ming Sen Zheng; Jia-jia Chen; Quan Feng Dong

The protection layer was introduced to the surface of the Li anode to enhance the charge/discharge performance of lithium/sulfur batteries. The Pt protection layer was formed by magnetron sputtering method. When the Li anode is coated with the protection layer, the unit cells with a liquid electrolyte showed an enhanced charge/discharge performance, resulting in an average discharge capacity of 750mAh/g during 90 cycles. All the charge/discharge tests were performed at room temperatures.


Advanced Materials Research | 2012

The Research of Electrolyte on Lithium/Sulfur Battery

Ming Sen Zheng; Jia-jia Chen; Quan Feng Dong

The suitability of some different kinds of liquid electrolytes with a 1M solution of LiCF3SO3 was evaluated for discharging capacity and cycle performance of Li/S cells at room temperature. The liquid electrolyte component was found to have a profound influence on the discharging capacity and cycle property. The lithium–sulfur battery based on the alcohol-ether binary electrolyte shows two discernible voltage plateaus at around 2.4 and 2.1 V, which correspond to the formation of soluble polysulfides and of solid reduction products, respectively. However, the liquid electrolyte based on carbonate electrolyte shows a bad compatibility with sulfur cathode. The lithium sulfur battery can not deliver acceptable discharging capacity and cycle performances.


Physical Chemistry Chemical Physics | 2012

A hierarchical architecture S/MWCNT nanomicrosphere with large pores for lithium sulfur batteries

Jia-jia Chen; Qian Zhang; Yining Shi; Linlin Qin; Yong Cao; Mingsen Zheng; Quanfeng Dong


Electrochimica Acta | 2010

Preparation and performance of a core-shell carbon/sulfur material for lithium/sulfur battery

Chong Wang; Jia-jia Chen; Yining Shi; Mingsen Zheng; Quanfeng Dong


Journal of The Electrochemical Society | 2012

Two-Step Hydrothermal Method for Synthesis of Sulfur-Graphene Hybrid and its Application in Lithium Sulfur Batteries

Zhikai Wei; Jia-jia Chen; Linlin Qin; Abirdu-woreka Nemage; Mingsen Zheng; Quanfeng Dong


Physical Chemistry Chemical Physics | 2015

Enhanced electrochemical performance and thermal stability of LiNi0.5Mn1.5O4 using an electrolyte with sulfolane

Qian Zhang; Jia-jia Chen; Xue-Yin Wang; Cheng Yang; Mingsen Zheng; Quanfeng Dong

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