Article
Chemistry, Multidisciplinary
Zhengfeng Zhao, Dong Zheng, Menglei Guo, Jiangyue Yu, Sainan Zhang, Zhenjie Zhang, Yao Chen
Summary: This study developed a new artificial photoenzymatic system using a mesoporous olefin-linked covalent organic framework as the carrier for immobilizing formate dehydrogenase and Rh-based electron mediator, achieving high efficiency in converting CO2 to formic acid.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Hai-Ning Wang, Yan-Hong Zou, Yao-Mei Fu, Xing Meng, Li Xue, Hong-Xu Sun, Zhong-Min Su
Summary: Composite photocatalysts based on MOFs and semiconductors, such as CdS@UiO-66-NH2, exhibit outstanding performance in the photocatalytic reduction of CO2, achieving efficient conversion of CO2 into CO under visible light irradiation with high selectivity. These photocatalysts maintain great activity even in mixed CO2/N-2 atmospheres and are attributed to the direct Z-scheme heterojunction, enhanced charge carrier separation, specific surface areas, improved light absorption, and abundant reaction sites.
Article
Chemistry, Multidisciplinary
Meng-Di Zhang, Jia -Run Huang, Wen Shi, Pei-Qin Liao, Xiao-Ming Chen
Summary: In this study, a stable metal-organic framework (PcNi-Co-O) was reported as a bifunctional electrocatalyst for efficient CO2 overall splitting. PcNi-Co-O achieved a commercial-scale current density of 123 mA cm-2 and a Faradic efficiency (CO) of 98% at a low cell voltage of 4.4 V when used as both cathode and anode catalysts. Mechanism studies revealed the synergistic effects between two active sites and the energy-level matching of cathode and anode catalysts.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Oliver Dumele, Luka Dordevic, Hiroaki Sai, Thomas J. Cotey, M. Hussain Sangji, Kohei Sato, Adam J. Dannenhoffer, Samuel I. Stupp
Summary: This study investigates the synthesis of supramolecular polymers capable of sensitizing catalysts for photocatalytic hydrogen production and successfully develops a supramolecular photocatalytic system that retains long-term photocatalytic activity in all aqueous media. The findings demonstrate the potential of tailored supramolecular polymers as renewable energy and sustainability materials.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Chanjuan Zhang, Diana Dragoe, Francois Brisset, Bernard Boitrel, Benedikt Lassalle-Kaiser, Winfried Leibl, Zakaria Halime, Ally Aukauloo
Summary: Intense efforts are being devoted to discovering cost-effective catalysts for the selective reduction of carbon dioxide, particularly in the design of molecular complexes contributing to boosting homogeneous electrocatalytic activity. By chemically modifying electrodes with a molecular iron-porphyrin catalyst holding urea functions, researchers have achieved excellent selectivity towards CO production in water, with high effective turnover frequency values observed in comparison to similar bare iron-porphyrin analogues. This approach represents a remarkable gain in electrocatalytic performance of molecular catalysts at the electrode surface, utilizing chemical functions as molecular clefts for CO2 binding and reduction.
Review
Biochemical Research Methods
Liliana Calzadiaz-Ramirez, Anne S. Meyer
Summary: New measures are urgently needed to reduce atmospheric CO2 levels. Formate dehydrogenases (FDHs) have the potential to catalyze the conversion of CO2 to formate, providing a novel first step approach for biocatalytic carbon capture and utilization. However, improvements are needed in the efficacy of the electron donor, enzyme stabilization, and enhancing the desired reverse FDH reactivity. Recent research has shown that the commonly used cofactor NADH is inefficient for FDH catalyzed CO2 conversion. Understanding the details of the redox reactions and structure-function relations of both metal dependent and metal-independent FDHs is crucial for promoting enzymatic CO2 utilization.
CURRENT OPINION IN BIOTECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Weiwei Guo, Xingxing Tan, Jiahui Bi, Liang Xu, Dexin Yang, Chunjun Chen, Qinggong Zhu, Jun Ma, Akhil Tayal, Jingyuan Ma, Yuying Huang, Xiaofu Sun, Shoujie Liu, Buxing Han
Summary: The use of atomic In catalysts for CO2 electroreduction to CO shows high efficiency and selectivity, offering a promising method to reduce greenhouse gas emissions. The catalyst demonstrates outstanding faradaic efficiency, total current density, and turnover frequency, along with remarkable stability.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Engineering, Chemical
Joaquim Bie, Bruno Sepodes, Pedro C. B. Fernandes, Maria H. L. Ribeiro
Summary: Enzymes are important catalysts with high specificity and catalytic activity. Immobilization of enzymes in industrial processes overcomes the limitations and enhances stability and product yield.
Article
Chemistry, Physical
Cody R. Carr, Josh D. B. Koenig, Michael J. Grant, Warren E. Piers, Gregory C. Welch
Summary: In this study, the effects of various derivatized catalysts on CO2 electroreduction were investigated. The results showed that the bimetallic catalyst exhibited the highest catalytic activity and selectivity in aqueous electrolyte.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Somnath Guria, Dependu Dolui, Chandan Das, Santanu Ghorai, Vikram Vishal, Debabrata Maiti, Goutam Kumar Lahiri, Arnab Dutta
Summary: Synthetic CO2-reducing catalysts are typically efficient and selective in converting CO2 into carbon feedstocks, and copper complexes resembling natural enzymes offer reversible CO2 reduction/oxidation reactions. By adjusting the conditions and catalyst biases, selective reduction or oxidation of CO2 can be achieved in organic or aqueous media.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Jian-Xin Qu, Yao-Mei Fu, Xing Meng, Yu-Ou He, Hong-Xu Sun, Rui-gang Yang, Hai-Ning Wang, Zhong-Min Su
Summary: The anhydrous proton conductivity of Im@IEF-11, which combines imidazole and porous IEF-11, has been studied, and the highest proton conductivity value can reach up to 7.64 x 10(-2) S cm(-1). Additionally, IEF-11 exhibits CO2 reduction ability due to its reasonable structure and suitable energy band, with a CO formation rate of 31.86 μmol g(-1) h(-1).
CHEMICAL COMMUNICATIONS
(2023)
Review
Chemistry, Multidisciplinary
Giulia Marcandalli, Mariana C. O. Monteiro, Akansha Goyal, Marc T. M. Koper
Summary: The electrochemical reduction of CO2 faces challenges such as low energy and Faradaic efficiencies due to concurrent electrochemical reactions and solution acid-base reactions. Recent studies have shown that the nature of the electrolyte, specifically pH and cation identity, plays a crucial role in tuning the efficiency of CO2RR to CO in aqueous solutions.
ACCOUNTS OF CHEMICAL RESEARCH
(2022)
Article
Engineering, Environmental
Lihang Yan, Guanhua Liu, Jianqiao Liu, Jing Bai, Yaoxuan Li, Huaxun Chen, Liya Zhou, Jing Gao, Yanjun Jiang
Summary: This study developed a hierarchically porous structure by optimizing the pore structure of microporous UiO-66-NH2, which enhanced the enrichment of CO2 and the immobilization of formate dehydrogenase. The enzyme electrocatalytic system improved the CO2 reduction efficiency through the combination of CO2 enrichment and electrocatalytic NADH regeneration. The optimized catalytic system achieved a significantly higher formate yield compared to the free enzyme system.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Shiyong Mou, Yonghao Li, Luchao Yue, Jie Liang, Yonglan Luo, Qian Liu, Tingshuai Li, Siyu Lu, Abdullah M. Asiri, Xiaoli Xiong, Dongwei Ma, Xuping Sun
Summary: The study presents Cu2Sb decorated Cu nanowire arrays on Cu foil as a highly active and selective electrocatalyst for converting CO2 to CO, achieving a high Faraday efficiency for CO and tunable H-2/CO ratio. The improved selectivity for CO is attributed to the bimetallic effect and nanowire arrays structure.
Article
Chemistry, Multidisciplinary
Yan Zhou, Shengtang Liu, Yuming Gu, Ge-Hua Wen, Jing Ma, Jing-Lin Zuo, Mengning Ding
Summary: A redox-active nickel dithiolene-based MOF catalyst was designed and developed to enhance the electroreduction performance of CO2 by mimicking the active sites of biological catalysts, leading to improved conversion rates and Faradaic efficiencies for the transformation of CO2 into high-value chemical stocks.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)