Rhenium-Metalated Polypyridine-Based Porous Polycarbazoles for Visible-Light CO2 Photoreduction,ACS Catalysis

当前位置： X-MOL 学术 › ACS Catal. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Rhenium-Metalated Polypyridine-Based Porous Polycarbazoles for Visible-Light CO2 Photoreduction
ACS Catalysis ( IF 11.3 ) Pub Date : 2019-02-15 00:00:00 , DOI: 10.1021/acscatal.8b04032
Hai-Peng Liang _{1,

2,

3} , Amitava Acharjya ₂ , Dejene Assefa Anito _{1,

3} , Sarah Vogl ₂ , Tian-Xiong Wang _{1,

3} , Arne Thomas ₂ , Bao-Hang Han _{1,

3}

Affiliation

Transformation of CO₂ into valuable chemicals and especially fuels is deemed as a promising approach to reduce our dependence on fossil fuels and to alleviate climate change. Carbazole-based porous polymers bearing rhenium-metalated polypyridine functionalities were constructed via simple oxidative coupling reaction. These porous polymers are employed as heterogeneous supports for immobilization of catalytically active rhenium complexes and furthermore provide high CO₂ adsorption capabilities and light absorption abilities, i.e., photosensitizing properties. Consequently, such rhenium-metalated microporous polycarbazole networks show high efficiencies for CO₂ photoreduction upon visible-light irradiation, with a CO evolution rate up to 623 μmol g^–1 h^–1 and selectivity of 97.8%. The microporous solid photocatalyst shows enhanced stability and photocatalytic performance compared to the molecular catalysts during long-term use.

中文翻译：

hen金属化的基于聚吡啶的多孔聚咔唑，用于可见光CO ₂光还原

将CO ₂转化为有价值的化学物质（尤其是燃料）被认为是减少我们对化石燃料的依赖并减轻气候变化的一种有前途的方法。通过简单的氧化偶联反应构建了带有bearing金属化聚吡啶官能团的咔唑类多孔聚合物。这些多孔聚合物用作固定化催化活性rh配合物的非均相载体，并且还提供高的CO ₂吸附能力和光吸收能力，即光敏性能。因此，这种rh金属化的微孔聚咔唑网络在可见光照射下显示出高的CO ₂光还原效率，CO释放速率高达623μmolg^–1 h ^–1，选择性为97.8％。与长期使用期间的分子催化剂相比，微孔固体光催化剂显示出增强的稳定性和光催化性能。

更新日期：2019-02-15

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南