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High-capacity porous carbons prepared by KOH activation of activated carbon for supercapacitors 被引量:2
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作者 Yong Xiao Chao Long +4 位作者 Ming-Tao Zheng Han-Wu Dong Bing-Fu Lei Hao-Ran Zhang Ying-Liang Liu 《中国化学快报:英文版》 SCIE CAS CSCD 2014年第6期865-868,共4页
High-performance supercapacitor electrode materials are prepared from the commercially available activated carbon(AC) through a facile and low-cost chemical activation method.The obtained results show that AC activate... High-performance supercapacitor electrode materials are prepared from the commercially available activated carbon(AC) through a facile and low-cost chemical activation method.The obtained results show that AC activated by KOH with an alkali/carbon ratio of 6/1(ACK6) possesses a specific surface area of 3405 m~2/g,a large pore volume of 2.01 cm~3/g,and exhibits the highest initial specific capacitance of335 F/g at the current density of 0.5 A/g in 6 mol/L KOH,and 85%coloumbic efficiency for 5000 cycles at20 mV/s. 展开更多
关键词 化学活化法 超级电容器 活性炭 KOH 炭制备 高容量 多孔 电极材料
A Novel White Light Emitting Long-lasting Phosphor 预览
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作者 BingFuLEI YingLiangLIU +1 位作者 ZeRenYE ChunShanSHI 《中国化学快报:英文版》 SCIE CAS CSCD 2004年第3期 335-338,共4页
A novel white light emitting long-lasting phosphor Cd1-xDyxSiO3 is reported in this letterThe Dy^3+ doped CdSiO3 phosphor emits white light. The phosphorescence can be seen with the naked eye in the dark clearly even ... A novel white light emitting long-lasting phosphor Cd1-xDyxSiO3 is reported in this letterThe Dy^3+ doped CdSiO3 phosphor emits white light. The phosphorescence can be seen with the naked eye in the dark clearly even after the 254nm UV irradiation have been removed for about 30min. In the emission spectrum of 5% Dy^3+ doped CdSiO3 phosphor, there are two emission peaks of Dy^3+, 580nm (^4F9/2→^6H13/2) and 486nm (^4F9/2→^6H15/2), as well as a broad band emission located at about 410nm. All the three emissions form a white light with CIE chromaticity coordinates x=0.3874, y=0.3760 and the color temperature is 4000 K under 254 nm excitation. It indicated that this phosphor is a promising new luminescent material for practice application. 展开更多
关键词 硅酸镉 白光 磷光体 镝离子
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Preparation of the Phosphors BaAl2O4:Eu, RE (RE=Dy, Ho) by Microwave Heating Technique and Observation of Long Phosphorescence 预览
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《中国化学快报:英文版》 SCIE CAS CSCD 1999年第8期709-712,共4页
关键词 Barium ALUMINATE microwave heating TECHNIQUE europium(Ⅱ) PHOSPHORESCENCE
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