| 氮掺杂石墨烯/多孔碳复合材料的制备及其氧还原催化性能 |
| |
| 引用本文： | 贺新福,龙雪颖,吴红菊,张凯博,周均,李可可,张亚婷,邱介山.氮掺杂石墨烯/多孔碳复合材料的制备及其氧还原催化性能[J].化工学报,2019,70(6):2308-2315. |
| |
| 作者姓名： | 贺新福 龙雪颖 吴红菊 张凯博 周均 李可可 张亚婷 邱介山 |
| |
| 作者单位： | 1. 西安科技大学化学与化工学院,陕西 西安 7100542. 国土资源部煤炭资源勘查与综合利用重点实验室,陕西 西安 7100543. 大连理工大学化工学院,辽宁 大连 1160244. 北京化工大学化学工程学院,北京 100029 |
| |
| 基金项目： | 国家自然科学基金项目(U1703251,U1810113);陕西省重点研发计划项目(2017ZDCXL-GY-10-01-02) |
| |
| 摘 要： | 采用简单、无模板的方法制备了氮掺杂多孔石墨烯/碳复合材料(NPGC)。采用SEM、XRD、Raman、XPS等分析手段对NPGC的形貌、组成以及结构进行了表征,利用旋转圆盘电极技术测试了其电催化氧还原反应(ORR)活性。结果表明,葡萄糖在水热后生成的碳与石墨烯成功复合,并在950℃炭化、活化后形成了相互渗透、结构良好的三维片状多孔网络结构;其氮含量高达9.47%。NPGC作为一种高效的非金属ORR电催化剂,在碱性溶液中具有较高的起始电位0.87 V(vs RHE)]和较大的极限电流密度(4.7 mA?cm?2),以及其ORR平均转移电子数为3.8。与商业Pt/C催化剂相比,NPGC具有较强的耐甲醇性和长期耐久性,且制备成本较低,具有广阔的应用前景。
|
| 关 键 词： | 氧还原反应 石墨烯 纳米材料 多孔碳 电化学 |
| 收稿时间： | 2018-12-17 |
| 修稿时间： | 2019-03-19 |
Synthesis of N-doped graphene/porous carbon composite and its electrocatalytic performance on oxygen reduction reaction |
| |
| Xinfu HE,Xueying LONG,Hongju WU,Kaibo ZHANG,Jun ZHOU,Keke LI,Yating ZHANG,Jieshan QIU.Synthesis of N-doped graphene/porous carbon composite and its electrocatalytic performance on oxygen reduction reaction[J].Journal of Chemical Industry and Engineering(China),2019,70(6):2308-2315. |
| |
| Authors: | Xinfu HE Xueying LONG Hongju WU Kaibo ZHANG Jun ZHOU Keke LI Yating ZHANG Jieshan QIU |
| |
| Affiliation: | 1. School of Chemistry and Chemical Engineering, Xi’an University of Science and Technology, Xi’an 710054, Shaanxi, China2. Key Laboratory of Coal Resources Exploration and Comprehensive Utilization, Ministry of Land and Resources, Xi’an 710054, Shaanxi, China3. School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China4. School of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
| |
| Abstract: | Nitrogen-doped porous graphene/carbon composites(NPGC) were prepared by a simple and template free method.Its morphology, composition and structure were characterized by SEM, XRD, Raman and XPS. The electrocatalytic performance of NPGC on oxygen reduction reaction(ORR) was measured by a rotating disk electrode. The results showed that porous carbon generated by hydrothermal treatment of glucose was successfully compounded with graphene. After carbonization and activation at 950℃, a three-dimensional lamellar porous network structure with good permeability and structure was formed. The N content of NPGC is as high as 9.47%. NPGC showed relatively high initial potential 0.87 V(vs RHE)] and limiting current density (4.7 mA?cm?2) for ORR in KOH solution, and the average number of ORR transferred electrons was 3.8. Compared with commercial Pt/C electrocatalyst, NPGC showed high methanol tolerance and long-term durability, and had the advantage of low preparation cost, which has broad application prospects in industry. |
| |
| Keywords: | oxygen reduction reaction graphene nanomaterials porous carbon electrochemistry |
|
| 点击此处可从《化工学报》浏览原始摘要信息 |
|
点击此处可从《化工学报》下载全文 |
|
