2023
DOI: 10.1021/acsanm.3c01108
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Zr, N-Co-Doped Carbon Quantum Dot Crosslinking Agents for Use in Fracturing Fluids

Abstract: To further improve the performance of the fracturing fluid, the Zr, N-co-doped carbon quantum dot nano-crosslinking agent was synthesized by the hydrothermal method to solve the problems of easy agglomeration, instability, and gel breaking after crosslinking of the conventional polyacrylamide fracturing fluid crosslinking agent. The crosslinking agent has good stability and multiple crosslinking sites, as well as can be crosslinked with anionic polyacrylamide (HPAM) solution to form a high-strength hydrogel fr… Show more

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Cited by 6 publications
(2 citation statements)
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“…In current investigations focused on temperature-resistant polymer gels, the organic zirconium crosslinking agent has emerged as the most widely utilized metal-ion crosslinking agent [ 53 , 54 , 55 ]. The gelation mechanism involving the polymer and organic zirconium crosslinking agent involves a series of intricate reactions.…”
Section: Resultsmentioning
confidence: 99%
“…In current investigations focused on temperature-resistant polymer gels, the organic zirconium crosslinking agent has emerged as the most widely utilized metal-ion crosslinking agent [ 53 , 54 , 55 ]. The gelation mechanism involving the polymer and organic zirconium crosslinking agent involves a series of intricate reactions.…”
Section: Resultsmentioning
confidence: 99%
“…But at high shear stress, their viscosity decreases dramatically (to 1-100 mPa•s), as the chains are disengaged from the entanglements and aligned along the direction of flow. Solutions of WLMs and polymers play an important role in the oil industry, where they are applied as thickeners in hydraulic fracturing (HF) [10,[17][18][19][20][21][22] and as drag-reducing agents (DRAs) in oil transportation [10,17,[23][24][25].…”
Section: Introductionmentioning
confidence: 99%