http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Zijian Lv (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
-
Zijian Lv,Qin Zhong,Yunfei Bu,Junpeng Wu 대한금속·재료학회 2016 ELECTRONIC MATERIALS LETTERS Vol.12 No.6
The morphology and electrical conductivity are essential toelectrochemical performance of electrode materials in renewableenergy conversion and storage technologies such as fuel cells andsupercapacitors. Here, we explored a facile method to growAg@nickel-cobalt layered double hydroxide (Ag@Ni/Co-LDHs) with3D flower-like microsphere structure. The results show themorphology of Ni/Co-LDHs varies with the introduction of Agspecies. The prepared Ag@Ni/Co-LDHs not only exhibits an openhierarchical structure with high specific capacitance but also showsgood electrical conductivity to support fast electron transport. Benefiting from the unique structural features, these flower-likeAg@Ni/Co-LDHs microspheres have impressive specific capacitanceas high as 1768 F g−1 at 1 A g−1. It can be concluded that engineeringthe structure of the electrode can increase the efficiency of the specificcapacitance as a battery-type electrode for hybrid supercapacitors.
-
Evaluation on direct aqueous carbonation of industrial/mining solid wastes for CO2 mineralization
Zijian Li,Jie Chen,Zongze Lv,Yichao Tong,Jingyu Ran,Changlei Qin 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.122 No.-
Carbonation of industrial alkaline resources can achieve dual effects of CO2 sequestration and solid wastemanagement, and the carbonated product may act as a potential cementitious backfill material. Based onthis idea, CO2 mineralization characteristics and potential of typical industrial solid wastes, mine tailingsand their mixtures are investigated by direct aqueous carbonation, and effects of reaction parameters,including particle size, reaction temperature, solid-to-liquid ratio, CO2 concentration, are systematicallyexplored. Results show that industrial solid wastes with a high Ca content such as carbide slag have bettercarbonation activity with the maximum CO2 sequestration capacity of 544.6 g-CO2/kg, while the carbonationof mine tailings is very weak. The combination of coal fly ash with tailings has a potentialstimulative effect during carbonation. Moreover, influences of carbonation parameters are revealed inthis study, and optimal reaction parameters are determined to be particle size below 75 lm, temperatureof 60 C, solid-to-liquid ratio of 100 g/L, and CO2 concentration of 15% within mild range. These resultscan provide fundamental knowledge for the integrated CO2 mineralization and goaf backfilling, andaccelerate carbon reduction and waste resource utilization.
-
Preparation and enhanced CO2 adsorption capacity of UiO-66/graphene oxide composites
Yan Cao,Qin Zhong,Yunxia Zhao,Zijian Lv,Fujiao Song 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.27 No.-
New composites of UiO-66 and graphene oxide (GO) were synthesized and tested as CO2 adsorbents atroom temperature. The materials and the parent composite components were characterized using X-raydiffraction (XRD), thermo-gravimetric analysis (TGA), nitrogen adsorption–desorption isothermanalysis, scanning electron microscopy (SEM), and FT-IR spectroscopy. The CO2 isotherms on theUiO-66/GO composites and the UiO-66 were measured by a static volumetric method separately. Experiments of multiple adsorption/desorption cycles were conducted to estimate reversibility of CO2on the UiO-66/GO. The results showed that the BET surface area of the composites was higher than thatof the parent UiO-66, and the adsorption capacities of CO2 on the composites were greatly higher thanthat on the UiO-66 sample. The composite UiO-66/GO-5 exhibited the maximum CO2 uptake of3.37 mmol/g at 298 K and 1 bar, which increased by 48% in comparison with that of the UiO-66, and wasmuch higher than those of the conventional activated carbons and the zeolites. The CO2 adsorptioncapacity was dependent on the BET surface area and the micropore volume of the composites. Finally, theadsorption/desorption cycle experiment revealed that the adsorption performance of UiO-66/GO-5 wasfairly stable, without noticeable degradation in the adsorption capacity of CO2 after 6 cycles. Therefore,this kind of composites has a potential application on CO2 capture technologies to mitigate globalwarming.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
