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通过新设计的石墨烯薄膜光催化剂大幅改进用于由一氧化碳生产燃料的太阳能收集

Highly Improved Solar Energy Harvesting for Fuel Production from CO by a Newly Designed Graphene Film Photocatalyst.

作者信息

Yadav Rajesh K, Lee Jeong-O, Kumar Abhishek, Park No-Joong, Yadav Dolly, Kim Jae Young, Baeg Jin-Ook

机构信息

Artificial Photosynthesis Research Group, Korea Research Institute of Chemical Technology (KRICT), 100 Jang-dong, Yuseong, Daejeon, 305 600, Republic of Korea.

出版信息

Sci Rep. 2018 Nov 13;8(1):16741. doi: 10.1038/s41598-018-35135-7.

DOI:10.1038/s41598-018-35135-7
PMID:30425293
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6233185/
Abstract

Our growing energy demands must be met by a sustainable supply with reduced carbon intensity. One of the most exciting prospects to realize this goal is the photocatalyst-biocatalyst integrated artificial photosynthesis system which affords solar fuel/chemicals in high selectivity from CO. Graphene based photocatalysts are highly suitable for the system, but their industrial scale use requires immobilization for improved separation and recovery of the photocatalyst. Therefore for practical purposes, design and fabrication of film type graphene photocatalyst with higher solar energy conversion efficiency is an absolute necessity. As a means to achieve this, we report herein the successful development of a new type of flexible graphene film photocatalyst that leads to >225% rise in visible light harvesting efficiency of the resultant photocatalyst-biocatalyst integrated artificial photosynthesis system for highly selective solar fuel production from CO compared to conventional spin coated graphene film photocatalyst. It is an important step towards the design of a new pool of graphene film based photocatalysts for artificial photosynthesis of solar fuels from CO.

摘要

我们不断增长的能源需求必须通过可持续供应来满足，同时降低碳强度。实现这一目标最令人兴奋的前景之一是光催化剂 - 生物催化剂集成人工光合作用系统，该系统能从一氧化碳中高选择性地生产太阳能燃料/化学品。基于石墨烯的光催化剂非常适合该系统，但其工业规模应用需要进行固定化处理，以改善光催化剂的分离和回收。因此，出于实际应用的目的，设计和制造具有更高太阳能转换效率的薄膜型石墨烯光催化剂是绝对必要的。作为实现这一目标的一种手段，我们在此报告成功开发了一种新型柔性石墨烯薄膜光催化剂，与传统旋涂石墨烯薄膜光催化剂相比，该催化剂能使所得光催化剂 - 生物催化剂集成人工光合作用系统的可见光捕获效率提高超过225%，从而实现从一氧化碳中高选择性地生产太阳能燃料。这是朝着设计用于从一氧化碳人工光合作用生产太阳能燃料的新型石墨烯薄膜基光催化剂迈出的重要一步。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7fbc/6233185/7ae985bea709/41598_2018_35135_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7fbc/6233185/6506b7ce829e/41598_2018_35135_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7fbc/6233185/1f418813c46b/41598_2018_35135_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7fbc/6233185/98f5c1632344/41598_2018_35135_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7fbc/6233185/6c7f6d5d8c82/41598_2018_35135_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7fbc/6233185/72c459690094/41598_2018_35135_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7fbc/6233185/e9cfd7ac4bd6/41598_2018_35135_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7fbc/6233185/1d2ca2455ea7/41598_2018_35135_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7fbc/6233185/7ae985bea709/41598_2018_35135_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7fbc/6233185/6506b7ce829e/41598_2018_35135_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7fbc/6233185/1f418813c46b/41598_2018_35135_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7fbc/6233185/98f5c1632344/41598_2018_35135_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7fbc/6233185/6c7f6d5d8c82/41598_2018_35135_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7fbc/6233185/72c459690094/41598_2018_35135_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7fbc/6233185/e9cfd7ac4bd6/41598_2018_35135_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7fbc/6233185/1d2ca2455ea7/41598_2018_35135_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7fbc/6233185/7ae985bea709/41598_2018_35135_Fig8_HTML.jpg

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