2020
DOI: 10.1016/j.catcom.2020.105929
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Unveiling CuO role in CO2 photoreduction process – Catalyst or reactant?

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Cited by 25 publications
(20 citation statements)
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“…The column and detectors were kept at 40 °C. 18 Reactions were monitored by gas sampling in the reactor headspace (200 mL) at regular intervals. Gaseous products were determined by means of gas chromatography using a TCD and FID Varian, CP-3800.…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…The column and detectors were kept at 40 °C. 18 Reactions were monitored by gas sampling in the reactor headspace (200 mL) at regular intervals. Gaseous products were determined by means of gas chromatography using a TCD and FID Varian, CP-3800.…”
Section: Methodsmentioning
confidence: 99%
“…10 Moreover, the synthesis method plays a critical role, and small variations in particle size and surface chemistry can compromise the catalyst's performance. 18 We hypothesize that this instability is because of the associated oxidation reaction over the surface: when the electron−hole pair is formed, while electrons are used to reduce CO 2 , the holes oxidize water into O 2 in the same particle, leading to further reactions that tend to induce poisoning. Therefore, charge separation is also crucial to maintaining CuO activity, which can be promoted through suitable heterojunction with other semiconductors.…”
Section: Introductionmentioning
confidence: 99%
“…21 Moreover, the photoreduction process becomes exclusive due to the use of scarcely available elements. [22][23][24] Although several such inclusive studies were reported, there still lay ample opportunities for the in-depth investigation leading to the development of synthesis routes to improve application effectiveness.…”
Section: Introductionmentioning
confidence: 99%
“…In this context, CuO is a promising candidate owing to excellent optoelectronic properties stemming from the weakly bonded d-electrons and chemistry with CO 2 gas due to low electron affinity. [23][24][25] Within this framework, we report on oxygen deficient CuO nanostructures synthesized using a water-hexane biphasic solvent. Insights into the growth mechanism of 6 nanostructures formed by varying oleic acid amounts were detailed.…”
Section: Introductionmentioning
confidence: 99%
“…[3][4][5] Examples include semiconductors, such as TiO 2 and ZnO, which photooxidize organic compounds in aqueous systems; [6,7] SiO 2 removes Mn(II) from effluents through adsorption; [8] and CuO catalyzes CO 2 photoreduction processes. [9] However, semiconductors in isolated form exhibit some limitations, such as rapid electron/hole recombination and poor solar light harvesting. Thus, the development of composite materials appears to be a viable way to improve photocatalytic performance.…”
Section: Introductionmentioning
confidence: 99%