The vital role of reduced graphene oxide in enhanced hydrogen photoproduction with a pyrene-pendant rhodium catalyst and platinum nanoparticles
The vital role of reduced graphene oxide in enhanced hydrogen photoproduction with a pyrene-pendant rhodium catalyst and platinum nanoparticles
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DOI：
10.1016/j.carbon.2015.06.083
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发表时间：
2015-11
期刊：
影响因子：
10.9
通讯作者：
Solji Park;Soojin Kim;T. Anjong;Sung Eun Lee;Jinheung Kim
中科院分区：
文献类型：
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作者：
Solji Park;Soojin Kim;T. Anjong;Sung Eun Lee;Jinheung Kim
采用芘衍生化的铑催化剂研究了还原氧化石墨烯（rGO）对甲酸盐和Pt纳米粒子光催化制氢的影响。通过π-π堆积作用将芘衍生的铑催化剂固定在rGO上。与使用薄的催化剂或未官能化的Rh催化剂的结果相比，Rh催化剂在rGO上的紧密形成令人惊讶地增强了在可见光照射下的氢气生产。我们的研究结果还表明，芘官能化的铑配合物的催化稳定性显着增加时，它被固定在rGO在光催化反应周期。RGO在有效地将电子从Rh（III）-双金属转移到铂纳米颗粒中起着至关重要的作用。
A cyclopentadienyl rhodium catalyst derivatized with pyrene was used to study the effects of a reduced graphene oxide (rGO) on visible light-driven photocatalytic hydrogen production using formate and Pt nanoparticles. The pyrene-derivatized rhodium catalyst was immobilized on rGO by π–π stacking interactions. A tight formation of the Rh catalyst on rGO surprisingly enhanced the hydrogen production upon visible light irradiation, in contrast with the results using a thin formation of the catalyst or the unfunctionalized Rh catalyst. Our results also demonstrated that the catalytic stability of the pyrene-functionalized Rh complex dramatically increased when it was immobilized on rGO during the photocatalytic reaction cycle. RGO played a crucial role in efficiently transferring electrons from the Rh(III)-hydrides to the platinum nanoparticles.