Catalytic activity of nickel nanoparticles stabilized by adsorbing polymers for enhanced carbon sequestration

Abstract

This work shows the potential of nickel (Ni) nanoparticles (NPs) stabilized by polymers for accelerating carbon dioxide (CO2) dissolution into saline aquifers. The catalytic characteristics of Ni NPs were investigated by monitoring changes in diameter of CO2 microbubbles. An increase in ionic strength considerably reduces an electrostatic repulsive force in pristine Ni NPs, thereby decreasing their catalytic potential. This study shows how cationic dextran (DEX), nonionic poly(vinyl pyrrolidone) (PVP), and anionic carboxy methylcellulose (CMC) polymers, the dispersive behaviors of Ni NPs can be used to overcome the negative impact of salinity on CO2 dissolution. The cationic polymer, DEX was less adsorbed onto NPs surfaces, thereby limiting the Ni NPs’ catalytic activity. This behavior is due to a competition for Ni NPs’ surface sites between the cation and DEX under high salinity. On the other hand, the non/anionic polymers, PVP and CMC could be relatively easily adsorbed onto anchoring sites of Ni NPs by the monovalent cation, Na+. Considerable dispersion of Ni NPs by an optimal concentration of the anionic polymers improved their catalytic capabilities even under unfavorable conditions for CO2 dissolution. This study has implications for enhancing geologic sequestration into deep saline aquifers for the purposes of mitigating atmospheric CO2 levels.

Review of supported metal nanoparticles: synthesis methodologies, advantages and application as catalysts

“…Ni-NPs have been recently used to accelerate the rate of CO 2 dissolution, especially under unfavorable water chemistry. The advantages of Ni-NPs as catalyst in the hydration of CO 2 are that its activity is pH independent, compared to the major catalysts such as the enzyme carbonic anhydrase and hypobromous, hypochlorous and boric acids which are effective primarily in the alkaline range [92][93][94]. Due to their unusual intrinsic properties, Ni-NPs have also been growing interest in organic synthesis compared to the traditional Raney nickel catalyst.…”

Production of Electrolytic Composite Powder by Nickel Plating of Shredded Polyurethane Foam

“…Electrochemistry is increasingly used in material engineering in the production of modern and durable materials created by combining various groups of materials. In such materials, interactions at the phase boundary result in a material with modified properties other than the phases from which it was formed [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 ]. In materials of this type, it is possible to obtain a previously unattainable correlation of the phase composition, chemical composition and surface morphology, and thus change the properties of the obtained materials [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 ].…”

“…Metal–polymer composites have enjoyed great interest in recent years [ 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 ]. The smaller the particles, the more interesting the surface properties are, influencing the interfacial properties, agglomeration behavior and physical properties of the particles [ 7 , 9 , 10 , 11 , 15 , 18 , 21 ]. Intermolecular interactions in such materials depend mainly on particle surface chemistry, shape, proportion and dimensions, distance between particles and dispersiveness.…”

“…Intermolecular interactions in such materials depend mainly on particle surface chemistry, shape, proportion and dimensions, distance between particles and dispersiveness. For the production of metal–polymer composites, a whole spectrum of methods can be used, taking into account the possibility of shaping and molding or replicating polymer-based composites [ 7 , 8 , 9 , 10 , 11 , 12 , 13 , 15 , 16 , 19 , 20 , 23 ]. The electroless (autocatalytic) method is also used [ 6 , 7 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 ].…”

Synthesis of Nanocapsules Based on Biosynthesized Nickel Nanoparticles and Potato Starch: Antimicrobial, Antioxidant, and Anticancer Activity

“…[7][8][9][10] Nickel (Ni) is one of the important transitional elements and plays a prominent role in many industries, so it was necessary to expand its applications but in nanoform scale. However, nickel nanoparticles (NiNPs) characterized by many features such as stability, electron transfer ability, electro-catalysis, a biosensor, anti-infammatory activities, intelligent drugs, environmental compatibilities, catalytic activity, and excellent capacitance properties, which make it wide spectrum application, [11][12][13][14] but till now not all benefits of Ni-NPs discovered.…”