RETRACTED ARTICLE: Preparation of hollow Aux-Cu2O nanospheres by galvanic replacement to enhance the selective electrocatalytic CO2 reduction to ethanol

Zhang, Lijie; Zhang, Ying; Wang, Hongtao; Chen, Jianbing; Cao, Zhongqi

doi:10.1080/17458080.2021.2005246

Cited by 5 publications

(2 citation statements)

References 44 publications

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“…This has led to a concerning increase in atmospheric carbon dioxide (CO 2 ) levels, posing a significant risk to human civilization . Electrochemical CO 2 reduction (eCO 2 R, CO 2 + n H + + n e – → product + y H 2 O) is a safe, pollutant-free, and efficient carbon capture and utilization method to convert CO 2 to one-carbon (C 1 ) molecules such as carbon monoxide (CO), − methanol (CH 3 OH), − methane (CH 4 ), − and formic acid (HCOOH) − but also multicarbon (C 2+ ) products such as ethylene (C 2 H 4 ), ,, ethanol (C 2 H 5 OH), − and 2-propanol ((CH 3 ) 2 CHOH) . Using renewable electricity, eCO 2 R can therefore generate “electrofuels”, a term used to describe renewable electricity stored in chemical bonds .…”

Section: Introductionmentioning

confidence: 99%

Copper Nanowires for Electrochemical CO₂ Reduction Reaction

Lin,

Ghulam Nabi,

Palma

et al. 2024

ACS Appl. Nano Mater.

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A promising carbon capture and utilization strategy is the electrochemical reduction of CO 2 (eCO 2 R) to value-added chemicals. Critical to the success of this approach is the development of catalysts capable of selectively converting aqueous CO 2 into a specific product. Copper (Cu) is considered the best pure metal candidate for eCO 2 R for its ability to catalyze the formation of several hydrocarbons, aldehydes, and alcohols. However, Cu lacks the required selectivity. In this regard, a finetuned control of its surface topology and nanostructuring could allow the enhancement of eCO 2 R catalysis. Here, we report a computational investigation of the growth tendency of Cu nanowires (NWs) as well as their ability to adsorb, activate, and convert CO 2 to one-and two-carbon products to understand their potential application as eCO 2 R catalysts. Grand canonical Monte Carlo simulations of the growth of Cu nanowires with diameters between 0.8 to 2 nm showed the tendency to form regular nanowires with a facet center cubic unit cell pattern. Cu nanowires demonstrated a pronounced propensity to activate CO 2 , particularly those with a 0.8 nm diameter, owing to the markedly uncoordinated Cu atoms on the surface and higher d-band center, which effectively promotes CO 2 interaction with the surface, molecule bending, C−O bond elongation, and charge transfer from the catalyst to CO 2 . Calculation of the CO 2 conversion to C 1 products shows the Cu NWs to be highly selective to carbon monoxide, a key intermediate ion in the generation of C 2 products.

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Section: Introductionmentioning

confidence: 99%

Copper Nanowires for Electrochemical CO₂ Reduction Reaction

Lin,

Ghulam Nabi,

Palma

et al. 2024

ACS Appl. Nano Mater.

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“…PTT can directly ablate tumors while assisting chemotherapy efficacy. − During last decades, various PTT agents have been widely explored, such as organic dyes (e.g., ICG , ), organic polymer nanoparticles (e.g., polyaniline , and polypyrrole , ), carbon-based nanomaterials (e.g., carbon nanotubes and graphene), − precious metal nanoparticles , and metallic chalcogenide nanomaterials . Among these materials, gold nanostructures (e.g., gold nanorods, nanoclusters, nanoflowers, nanocages, and nanoshells) − have become a research hotspot. In particular, gold nanorods (GNRs) are particularly attractive for simultaneous cancer treatment and diagnosis.…”

Section: Introductionmentioning

confidence: 99%

NIR-Activated Thermosensitive Liposome–Gold Nanorod Hybrids for Enhanced Drug Delivery and Stimulus Sensitivity

Zhang

Hao

Zuo

et al. 2022

ACS Biomater. Sci. Eng.

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Combinatorial photothermal therapy and chemotherapy is an extremely promising tumor therapeutic modality. However, such systems still remain challenges in stimulus sensitivity, avoiding drug leakage, and therapeutic safety. To solve these problems, we engineered actively loaded doxorubicin (DOX) and gold nanorod (GNR) liposomes through embedding stiff hollow mesoporous silica nanoparticles (HMSNs) in the liposomal water cavity (HMLGDB) to resist the influence of shear force of GNRs to prevent drug leakage. Under 808 nm laser irradiation, the ambient temperature was raised greatly because of the photothermal conversion of GNRs, thereby rupturing the lipid layer and then triggering the DOX release. The results of in vitro experiments showed that the low concentration of HMLGDB (15 μg/mL) could effectively overcome the MCF-7 cells (human breast cancer cell line) by the increase of DOX concentration intracellularly and the good photothermal effect of GNRs. After intravenous injection, HMLGDB exhibited intratumor aggregation and PTT capacity. Furthermore, the combined chemo−photothermal antitumor strategy demonstrated a high inhibition of tumor growth and low damage to normal tissues. The developed hybrids provide a paradigm for efficient combinatorial photothermal therapy (PTT) and chemotherapy (CT).

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Green facile synthesis of biowaste-converted Cu-Cu2O/BPC for non-enzymatic hydrogen peroxide sensing

Liu

Cao

et al. 2022

Diamond and Related Materials

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RETRACTED ARTICLE: Preparation of hollow Au_x-Cu₂O nanospheres by galvanic replacement to enhance the selective electrocatalytic CO₂ reduction to ethanol

Cited by 5 publications

References 44 publications

Copper Nanowires for Electrochemical CO₂ Reduction Reaction

Copper Nanowires for Electrochemical CO₂ Reduction Reaction

NIR-Activated Thermosensitive Liposome–Gold Nanorod Hybrids for Enhanced Drug Delivery and Stimulus Sensitivity

Green facile synthesis of biowaste-converted Cu-Cu2O/BPC for non-enzymatic hydrogen peroxide sensing

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RETRACTED ARTICLE: Preparation of hollow Aux-Cu2O nanospheres by galvanic replacement to enhance the selective electrocatalytic CO2 reduction to ethanol

Cited by 5 publications

References 44 publications

Copper Nanowires for Electrochemical CO2 Reduction Reaction

Copper Nanowires for Electrochemical CO2 Reduction Reaction

NIR-Activated Thermosensitive Liposome–Gold Nanorod Hybrids for Enhanced Drug Delivery and Stimulus Sensitivity

Green facile synthesis of biowaste-converted Cu-Cu2O/BPC for non-enzymatic hydrogen peroxide sensing

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Product

Resources

About

RETRACTED ARTICLE: Preparation of hollow Au_x-Cu₂O nanospheres by galvanic replacement to enhance the selective electrocatalytic CO₂ reduction to ethanol

Copper Nanowires for Electrochemical CO₂ Reduction Reaction

Copper Nanowires for Electrochemical CO₂ Reduction Reaction