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Ultrafast-Versatile-Domestic-Microwave-Oven Based Graphene Oxide Reactor for the Synthesis of Highly Efficient Graphene Based Hybrid Electrocatalysts
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2018-01-14 00:00:00 , DOI: 10.1021/acssuschemeng.7b04398 Barun Kumar Barman 1 , Karuna Kar Nanda 1
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2018-01-14 00:00:00 , DOI: 10.1021/acssuschemeng.7b04398 Barun Kumar Barman 1 , Karuna Kar Nanda 1
Affiliation
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When solid graphene oxide (GO) is treated with microwave, it generates a huge amount of heat followed by reduction and exfoliation. This can be used as a high temperature reactor for ultrafast and in situ synthesis of reduced graphene oxide (rGO) based hybrids within 60 s in an open atmosphere. rGO based hybrids such as Fe3[email protected], Co-Fe3[email protected], Fe-Fe3[email protected], [email protected], and [email protected] (G represents graphene, and NG represents N-doped graphene) have been synthesized by simply mixing appropriate precursors with GO and treating with microwave. The experiments require neither any external high temperature reactors/furnaces nor any chemical reagents or solvents. Then, rGO based hybrids have been exploited for oxygen evolution reaction (OER), oxygen reduction reaction (ORR), and methanol oxidation activity. [email protected] and Co-Fe3[email protected] show outstanding OER performances with very low overpotential (η) and a current density of 10 mA/cm2 at 1.52 and 1.56 V with long-term stability. Fe-Fe3[email protected] hybrid shows better oxygen reduction performances, and the onset potential is comparable with precious Pt/C catalyst. The [email protected] is highly stable toward methanol oxidation as compared to the Pt/C catalyst. The high catalytic activity and stability are believed to be due to the better adherence of different inorganic nanostructures onto rGO. We strongly believe that this methodology would pave the way for a new era of synthesis of rGO based various hybrids for various applications.
中文翻译：
超快多功能家用微波氧化石墨烯反应器，用于合成高效石墨烯杂化电催化剂
固态氧化石墨烯（GO）用微波处理时，会产生大量热量，然后还原并剥落。它可以用作高温反应器，用于在开放气氛下60 s内超快速地原位合成基于还原氧化石墨烯（rGO）的杂化体。基于rGO的杂种，例如Fe 3 [受电子邮件保护]，Co-Fe 3 [受电子邮件保护]，Fe-Fe 3[电子邮件保护]，[电子邮件保护]和[电子邮件保护]（G代表石墨烯，NG代表掺氮石墨烯）已经通过简单地将适当的前体与GO混合并用微波处理而合成。实验既不需要任何外部高温反应器/炉子，也不需要任何化学试剂或溶剂。然后，基于rGO的杂种已被用于氧释放反应（OER），氧还原反应（ORR）和甲醇氧化活性。[受电子邮件保护]和Co-Fe 3 [受电子邮件保护]具有出色的OER性能，具有极低的过电势（η），在1.52和1.56 V时的电流密度为10 mA / cm 2，具有长期稳定性。铁铁3[受电子邮件保护的]杂化物显示出更好的氧还原性能，其起爆电位可与珍贵的Pt / C催化剂媲美。与Pt / C催化剂相比，[电子邮件保护]对甲醇氧化高度稳定。认为高的催化活性和稳定性是由于不同的无机纳米结构更好地附着在rGO上。我们坚信，这种方法将为合成基于rGO的各种用途的各种杂种的新时代铺平道路。
更新日期：2018-01-14
中文翻译：
超快多功能家用微波氧化石墨烯反应器，用于合成高效石墨烯杂化电催化剂
固态氧化石墨烯（GO）用微波处理时，会产生大量热量，然后还原并剥落。它可以用作高温反应器，用于在开放气氛下60 s内超快速地原位合成基于还原氧化石墨烯（rGO）的杂化体。基于rGO的杂种，例如Fe 3 [受电子邮件保护]，Co-Fe 3 [受电子邮件保护]，Fe-Fe 3[电子邮件保护]，[电子邮件保护]和[电子邮件保护]（G代表石墨烯，NG代表掺氮石墨烯）已经通过简单地将适当的前体与GO混合并用微波处理而合成。实验既不需要任何外部高温反应器/炉子，也不需要任何化学试剂或溶剂。然后，基于rGO的杂种已被用于氧释放反应（OER），氧还原反应（ORR）和甲醇氧化活性。[受电子邮件保护]和Co-Fe 3 [受电子邮件保护]具有出色的OER性能，具有极低的过电势（η），在1.52和1.56 V时的电流密度为10 mA / cm 2，具有长期稳定性。铁铁3[受电子邮件保护的]杂化物显示出更好的氧还原性能，其起爆电位可与珍贵的Pt / C催化剂媲美。与Pt / C催化剂相比，[电子邮件保护]对甲醇氧化高度稳定。认为高的催化活性和稳定性是由于不同的无机纳米结构更好地附着在rGO上。我们坚信，这种方法将为合成基于rGO的各种用途的各种杂种的新时代铺平道路。
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