In this work, the high yield self-N-O doped hydrochar had been prepared through the hydrothermal carbonization of microalgae in the aqueous bio-oil. The effects of temperature, residence time and the ratio of Chlorella and bio-oil on the solid yield were investigated. The results showed that the hydrochar had excellent thermal stability and abundant nitrogen and oxide functional groups, its solid yield reached 199.33%. After activated by KOH at high temperature, the hydrochar was transformed into a porous carbon material with high nitrogen content. The porous carbon showed high CO₂ absorption of 5.57 mmol/g at 0 °C and 1 bar. It also exhibited a high specific capacitance of 216.6F/g at 0.2 A/g and a good electrochemical stability with 88% capacitance retention after consecutive 5000 cycles.

在这项工作中，通过在含水生物油中对微藻进行水热碳化，制备了高产自掺NO的炭。研究了温度，停留时间以及小球藻与生物油的比例对固体收率的影响。结果表明，该水焦具有良好的热稳定性，并具有丰富的氮，氧化物官能团，固含量可达199.33％。在高温下用KOH活化后，将烃类转化为高氮含量的多孔碳材料。多孔碳显示出高的CO ₂在0°C和1 bar下的吸光度为5.57 mmol / g。在连续的5000次循环后，它在0.2 A / g时还表现出216.6F / g的高比电容和良好的电化学稳定性以及88％的电容保持率。