Wood chip pyrolysis oil was used as raw material,and the pretreated bio-oil was polymerized with acrylic acid(AA)and chitosan(CTS)in the presence of ammonium persulfate(APS).A new bio-oil-based environmentally friendly coal dust inhibitor(Hbio-CTS)was prepared.The results show that at 70℃,CTS and AA mass is 0.65 g and 3.00 g,when APS/CTS is 5％,the maximum viscosity of Hbio-CTS synthesized under optimized conditions is 5.4 mPa·s.Both the FTIR and TG properties of Hbio-CTS confirmed that AA and CTS had been successfully grafted on the structure of bio-oil components.The solidified layer formed by Hbio-CTS on pulverized coal is very little affected by wind and rain.Among them,at 17 m/s(classⅦ),the maximum mass loss of pulverized coal was 6.99％.After 8 cycles(56 d),the degradation rate of Hbio-CTS was 57％.

Using coal tar pitch (CTP) as a carbon source and KOH as an activator, the one-step carbonization activation method was used to explore the effects of different activation temperatures on the development of the hierar-chical porosity of carbon and its performance as electrodes in a supercapacitor. The results show that the specific surface area and pore volume of the prepared carbon material ACTP-3-600 at the activation temperature of 600 degrees C are higher than those at other temperatures, and the micropores account for about 90.5 %. When the mass ratio of KOH to CTP is 3, the specific capacitance of ACTP-3-600 can reach 475 F g-1 at a current density of 0.5 A g-1. Under the condition of a high current density of 10 A g-1, its specific capacitance can still maintain 301.8 F g-1, and the rate performance is 63.5 %. The symmetric supercapacitor assembled with it can achieve an energy density of 20.2 Wh kg- 1 (at a power density of 450.0 W kg -1) in 1 M Na2SO4 electrolyte. After 10,000 cycles, the prepared carbon material has a capacitance retention rate of 91.2 % and good cycle stability. Because the activation temperature is relatively low, the method is simple, and the yield of prepared carbon material can reach 52.4 %, which is much higher than that of biomass (about 20 %). The prepared method can greatly reduce the cost of carbon materials. It is a feasible and helpful route to prepare high-performance hierarchical porous carbon materials.

选择煤沥青经过碱氧化产生的液相氧化产物与丙烯酰胺、聚乙二醇、丙烯酸为原料,在引发剂过硫酸铵与交联剂N,N'-亚甲基双丙烯酰胺的作用下进行水溶液聚合,制备获得了具有较好耐盐性的高吸水性树脂.最佳合成条件为P∶AA∶AM∶PEG∶APS∶MBA=1.2∶2∶0.2∶1.2∶0.06∶0.04,聚合温度80℃,粒径大小0.15～0.30mm,所合成的树脂在水溶液中吸水倍率为451.8g/g,在生理盐水中为115.7g/g.通过单因素与正交分析确定了最佳合成条件,同时使用红外光谱与扫描电镜进行了结构表征.

将一定量的中间相炭微球(MCMB)通过与对苯二甲酰氯(Terephthaloyl chloride,TPC)改性的沥青共炭化,研究其对针状焦结构和性质的影响.通过红外光谱、热重和核磁共振氢谱、偏光显微镜、X射线衍射对其结构进行分析表征.结果表明,改性后的煤沥青芳烃芳香性进一步增加.其中,由2％TPC改性沥青与等量MCMB共炭化制备的半焦,电化学性能更优异,晶面间距(d002)更低、芳核片数更多,得到的针状焦性能结构更优异.

Using coal tar pitch (CTP) as a carbon source and KOH as an activator, the one-step carbonization activation method was used to explore the effects of different activation temperatures on the development of the hierarchical porosity of carbon and its performance as electrodes in supercapacitor. The results show that the specific surface area and pore volume of the prepared carbon material ACTP-3-600 at the activation temperature of 600 °C are higher than those at other temperatures, and the micropores account for about 90.5% when the mass ratio of KOH and CTP is 3, At a current density of 0.5 A g-1, the specific capacitance of ACTP-3-600 can reach 475 F g-1. The symmetric supercapacitor assembled with it can achieve an energy density of 20.2Wh kg-1 (at a power density of 450.0W kg-1) in 1 M Na2SO4 electrolyte. Because the activation temperature is relatively low, the method is simple, and the yield of prepared carbon material can reach 52.4%, which is much higher than that from biomass(about 20%). The preparation method can greatly reduce the cost of carbon materials. It is a feasible and helpful route to prepare high-performance hierarchical porous carbon materials.