【作者】 余正发； 王旭珍； 周善柯； 杨澜； 赵宗彬； 邱介山；

【Author】 Zhengfa Yu;Xuzhen Wang;Shanke Zhou;Lan Yang;Zongbin Zhao;Jieshan Qiu;Carbon Research Laboratory,Liaoning Key Lab for Energy Materials and Chemical Engineering &State Key Lab of Fine Chemicals.Dalian University of Technology;School of Chemistry,Faculty of Chemical,Environmental and Biological Science and Technology.Dalian University of Technology;

【机构】 炭素材料研究室能源材料化工辽宁省重点实验室大连理工大学精细化工国家重点实验室； 大连理工大学化工与环境生命学部化学学院；

【摘要】 利用熔盐技术制备高氮含量的多孔碳材料。以无机盐为造孔剂、葡萄糖为碳源、三聚氰胺为氮源,经过研磨混合,在惰性气氛下进行热处理,冷却、水洗,成功制得高氮含量（>26 wt.%）、孔隙结构发达(SBET>1400 m²·g^-1)的氮掺杂多孔碳材料。通过调节样品制备的碳化温度及前驱体中氮源与碳源的质量之比,即可实现对样品中氮含量及孔隙结构的调控。将氮掺杂多孔碳材料作为非金属催化剂,研究了具有不同氮形态及孔隙结构碳材料的催化性能,发现含氮多孔碳可选择性催化H₂S氧化生成单质硫。考察了反应温度和反应气氛对H₂S氧化脱除的影响。结果表明,含氮多孔碳显示出良好的脱硫性能（硫容高达1.10 g/g）;低温有利于H₂S的脱除、获得较高的硫容;水蒸气和氧气同时存在条件下,样品具有最佳的H₂S脱除性能。更多还原

【Abstract】 Nitrogen-doped porous carbons with high nitrogen content and well-developed porosity have been synthesized by molten salt-assisted method,using inorganic salt as porogen,glucose as carbon source and melamine as nitrogen source.The nitrogen content and porous structures of the carbon materials can be readily controlled by varying the carbonization temperature and/or the weight ratio of glucose to melamine.The as-obtained nitrogen-doped porous carbons with different nitrogen species and porous structure are used as catalysts in the oxidation of H₂S to elemental sulfur.The influence of the reaction parameters,such as the temperature and atmosphere,on the removal of H₂S is investigated systematically.The results indicate that the N-doped porous carbons exhibit superior H₂S removal performance（the sulfur capacity is as high as 1.10 g/g）.Low temperature favors the removal of H₂S to give high sulfur capacity.The presence of both moisture and oxygen is conductive to the oxidation removal of H₂S.更多还原