Cobalt coordinated two-dimensional covalent organic framework a sustainable and robust electrocatalyst for selective CO2 electrochemical conversion to formic acid

Ali, Sajjad; Iqbal, Rashid; Wahid, Fazli; Ismail, Pir Muhammad; Saleem, Adil; Ali, Sharafat; Raziq, Fazal; Ullah, Sami; Ullah, Ihsan; Tahir,; Zahoor, Muhammad; Wu, Xiaoqiang; Xiao, Haiyan; Zu, Xiaotao; Qiao, Liang

doi:10.1016/j.fuproc.2022.107451

Cited by 29 publications

(21 citation statements)

References 53 publications

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“…Another important factor of pore structure can significantly affect the photocatalytic performance by promoting the mass transfer process of reactants and products. [ 5,38,39 ] A clear hysteresis loop appears in the N 2 adsorption/desorption isotherm of 3CoPc/0.6P‐WS 2 as shown in Figure S10 and Table S1 (Supporting Information). In addition, the 3CoPc/0.6P‐WS 2 sample has a BET specific surface area of 22.88 m 2 /g −1 , which is higher than that of 3CoPc/WS 2 (14.79 m 2 /g −1 ) and WS 2 (9.7 m 2 /g −1 ).…”

Section: Resultsmentioning

confidence: 97%

“…The greenhouse effect of CO 2 on the Earth's atmosphere has sparked a substantial shift in research and investment in renewable energy production throughout the previous decades. [1][2][3][4][5] However, due to increased demand for transportation fuels and power, the need for fossil fuels continues to climb, resulting in massive emissions of carbon dioxide, a major greenhouse gas that causes environmental problems and has a substantial influence on human health. The most promising technique is to convert CO 2 photocatalysis directly into valuable smallmolecule chemicals and solar fuels such as CO, CH 4 , HCHO, HCOOH, CH 3 OH, and C 2 H 5 OH by utilizing solar light, which is an environmentally friendly strategy to produce clean energy with reducing the CO 2 concentration in the atmosphere and has attracted extensive attention.…”

Section: Introductionmentioning

confidence: 99%

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Photoelectron “Bridge” in Van Der Waals Heterojunction for Enhanced Photocatalytic CO₂ Conversion Under Visible Light

Ismail

Ali

et al. 2023

Advanced Materials

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Constructing Van der Waals heterojunction is a crucial strategy to achieve excellent photocatalytic activity. However, in most Van der Waals heterojunctions synthesized by ex situ assembly, electron transfer encounters huge hindrances at the interface between the two components due to the large spacing and potential barrier. Herein, a phosphate‐bridged Van der Waals heterojunction of cobalt phthalocyanine (CoPc)/tungsten disulfide (WS2) bridged by phosphate (xCoPc‐nPO4−‐WS2) is designed and prepared by the traditional wet chemistry method. By introducing a small phosphate molecule into the interface of CoPc and WS2, creates an electron “bridge”, resulting in a compact combination and eliminating the space barrier. Therefore, the phosphate (PO4−) bridge can serve as an efficient electron transfer channel in heterojunction and can efficiently transmit photoelectrons from WS2 to CoPc under excited states. These excited photoelectrons are captured by the catalytic central Co2+ in CoPc and subsequently convert CO2 molecules into CO and CH4 products, achieving 17‐fold enhancement on the 3CoPc‐0.6PO4−‐WS2 sample compared to that of pure WS2. Introducing a small molecule “bridge” to create an electron transfer channel provides a new perspective in designing efficient photocatalysts for photocatalytic CO2 reduction into valuable products.

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Section: Resultsmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Photoelectron “Bridge” in Van Der Waals Heterojunction for Enhanced Photocatalytic CO₂ Conversion Under Visible Light

Ismail

Ali

et al. 2023

Advanced Materials

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“…Importantly, the catalyst demonstrated remarkable stability, maintaining its performance over a period of 100 h (Figure ). In addition, the Co-NCOF electrocatalyst showed high formic acid solution purification (∼100 wt %) and low selectivity for CO 2 conversion to CO (∼3%) and HER (∼4%) …”

Section: Mof Electrocatalysts For Co2 Reductionmentioning

confidence: 99%

Section: Mof Electrocatalysts For Co2 Reductionmentioning

confidence: 99%

Recent Progress and Outlook of Metal–Organic Framework Materials Used for CO₂ Electrocatalytic Reduction

Yan,

Guo,

et al. 2023

Energy Fuels

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Converting CO 2 into valuable energy and chemicals is an effective way to solve environmental problems and energy crises. Compared with other CO 2 conversion methods, electrocatalytic CO 2 conversion can be combined with clean energy, enhancing its energy efficiency, environmental friendliness, and sustainability; the process can be improved significantly. In recent years, the self-assembly of metal ions/clusters and organic ligands to form crystalline compounds, known as metal−organic frameworks (MOFs), has attracted considerable attention. These materials have gained prominence due to their diverse range of potential applications and distinctive properties. This Review briefly introduces the basic principles of electrocatalytic reduction of CO 2 and the composition and properties of MOF materials. It summarizes the research progress of MOFs in the field of electrocatalytic CO 2 reduction from the following aspects: pristine MOF catalysts, MOF-based composites, and MOF-derived electrocatalysts. Finally, the development prospects of MOFs are discussed in combination with the current research status, providing a reference for the development of more efficient and stable MOF electrocatalysts.

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“…Current environmental conditions call for the development of ecological energy sources (Sekimoto et al, 2015;Raziq et al, 2022a;Ali et al, 2022b;Raziq et al, 2022b;Ali et al, 2022c;Ali et al, 2022d;Iqbal et al, 2022;Wahid et al, 2023). Among the candidates, H 2 is one of the most attractive alternatives to fossil fuels.…”

Section: Introductionmentioning

confidence: 99%

Low-temperature direct electrochemical splitting of H2S

Velazquez-Rizo

Sepulveda²

2023

Front. Chem. Eng.

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Hydrogen is considered one of the most promising decarbonized fuels. However, its applicability is limited due to the ecological constraints of its production. Hydrogen sulfide (H2S) is widely available in oil and gas reservoirs and has the potential of becoming an energetically favorable source of hydrogen. Nevertheless, its electrochemical separation into H2 and elemental sulfur has not been successfully achieved at the industrial scale, due to sulfur poisoning of the electrodes at the sulfur oxidation half-reaction. This review highlights the progress of the direct electrolytic separation of H2S below the sulfur dew point, where the sulfur poisoning effect becomes more prominent. The article discusses the different technologies and approaches explored to improve the energy efficiency and stability of H2S electrolytic systems, including the recent use of nanostructured electrodes and novel sulfur solvents as electrolytes.

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Cobalt coordinated two-dimensional covalent organic framework a sustainable and robust electrocatalyst for selective CO2 electrochemical conversion to formic acid

Cited by 29 publications

References 53 publications

Photoelectron “Bridge” in Van Der Waals Heterojunction for Enhanced Photocatalytic CO₂ Conversion Under Visible Light

Photoelectron “Bridge” in Van Der Waals Heterojunction for Enhanced Photocatalytic CO₂ Conversion Under Visible Light

Recent Progress and Outlook of Metal–Organic Framework Materials Used for CO₂ Electrocatalytic Reduction

Low-temperature direct electrochemical splitting of H2S

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Cobalt coordinated two-dimensional covalent organic framework a sustainable and robust electrocatalyst for selective CO2 electrochemical conversion to formic acid

Cited by 29 publications

References 53 publications

Photoelectron “Bridge” in Van Der Waals Heterojunction for Enhanced Photocatalytic CO2 Conversion Under Visible Light

Photoelectron “Bridge” in Van Der Waals Heterojunction for Enhanced Photocatalytic CO2 Conversion Under Visible Light

Recent Progress and Outlook of Metal–Organic Framework Materials Used for CO2 Electrocatalytic Reduction

Low-temperature direct electrochemical splitting of H2S

Contact Info

Product

Resources

About

Photoelectron “Bridge” in Van Der Waals Heterojunction for Enhanced Photocatalytic CO₂ Conversion Under Visible Light

Photoelectron “Bridge” in Van Der Waals Heterojunction for Enhanced Photocatalytic CO₂ Conversion Under Visible Light

Recent Progress and Outlook of Metal–Organic Framework Materials Used for CO₂ Electrocatalytic Reduction