Dual‐Functional NaCl Template Strategy towards Synthesis of Metal‐Free Sulfur/nitrogen co‐Doped Carbon Nanosheets Catalysts for Oxygen Reduction Reaction,ChemistrySelect

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Dual‐Functional NaCl Template Strategy towards Synthesis of Metal‐Free Sulfur/nitrogen co‐Doped Carbon Nanosheets Catalysts for Oxygen Reduction Reaction
ChemistrySelect ( IF 1.9 ) Pub Date : 2018-06-03 , DOI: 10.1002/slct.201801183
Changli Chen ₁ , Jun Ma ₁ , Yue Yu ₁ , Dejian Xiao ₁ , Qiaomei Luo ₁ , Jie Ma ₁ , Yi Liao ₁ , Xia Zuo ₁

Affiliation

Developing eco‐friendly, high‐efficiency and cost‐effective catalysts for oxygen reduction reaction are significantly crucial for the application of direct‐methanol fuel cells. The metal‐free sulfur/nitrogen in‐situ co‐doped carbon nanosheets are prepared through polymerization process and carbonization process using aniline as a nitrogen source, 4‐aminobenzenesulfonamide as a sulfur source and NaCl as a template and protective layer. The obtained catalysts show the obvious two dimensional nanosheet structure with successful doping of S and N. Benefiting from high contents of S atoms and N atom, high special surface area and graphitic degree, well‐ordered micropores and synergetic interaction between thiophenic‐S, pyridinic N and graphitic N, the optimal catalyst S3/N‐CNS800 shows excellent oxygen reduction performance with 13.2 mV more positive half‐wave potential than that of 20% Pt/C, superior long‐term durability and tolerance to methanol crossover.

中文翻译：

双功能NaCl模板策略合成无金属硫/氮共掺杂碳纳米片的氧还原反应催化剂

开发用于氧还原反应的环保，高效和具有成本效益的催化剂对于直接甲醇燃料电池的应用至关重要。通过苯胺为氮源，4-氨基苯磺酰胺为硫源，NaCl为模板和保护层，通过聚合工艺和碳化工艺制备无金属硫/氮原位共掺杂碳纳米片。所获得的催化剂显示出明显的二维纳米片结构，并成功地掺杂了S和N。得益于S原子和N原子的高含量，高比表面积和石墨化程度，微孔排列整齐以及噻吩-S，吡啶鎓之间的协同相互作用氮和石墨氮，最佳催化剂S3 / N-CNS800的氧还原性能出色，为13。

更新日期：2018-06-03

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