journal article·2023-02-13

Highly Efficient Photocatalytic Syngas Production from Formic Acid Using Iron-Porphyrins as Catalysts Integrated with CdS/CNTs Heterojunctions under Visible Light

Rana Muhammad Irfan, Muhammad Kashif Zaman, Mudassir Hussain Tahir, Ashfaq Ahmad, Muhammad Tayyab, Tanveer Ahmad, Majid Hussain, Ifzan Arshad, Muhammad Ashraf Shaheen

ACS Applied Energy Materials· Volume 6· Issue 3
Publisher page

Abstract

Syngas (H 2 + CO) is a compatible fuel for internal combustion engines, or it can be transformed to liquid fuels, which can help overcome future energy crises sustainably. In this study, we report an inexpensive and highly active photocatalytic system for production of syngas from formic acid under ambient conditions. The photocatalytic system comprising CdS/CNT hybrids and a porphyrin-based catalyst showed remarkable H 2 and CO evolution at ambient conditions. Using monochromatic light (420 nm), the highest values of apparent quantum yields reached 22.8 and 12.5% for H 2 and CO, respectively. Photoluminescence spectra and photocurrent responses proved the efficient electron transfer between the hybrid photosensitizer and the molecular catalyst, which enhanced the performance of the present photocatalytic system. Mechanistic insights regarding the molecular catalyst were obtained using cyclic voltammetry, inferring the generation of Fe(I) species as a critical step in the photocatalytic decomposition of formic acid.
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Research context

OpenAlex topics: CO2 Reduction Techniques and Catalysts · Catalytic Processes in Materials Science · Catalysts for Methane Reforming

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Pharm-X Center, School of Pharmacy, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Shanghai200240, China

Graduate School of Energy Science, Kyoto University, Sakyo-Ku, Kyoto606-8501, Japan

School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai200240, China

School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai200237, China

Department of Chemistry, Shanghai Jiao Tong University, Shanghai200240, China

Department of Chemistry, University of Management and Technology, 51040Sialkot Campus, Pakistan

Department of Chemistry, University of Sargodha, Sargodha40100, Pakistan

Funding

China Postdoctoral Science Foundation · Suzhou Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies

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