Iron-Based Oxygen Scavengers on Mesoporous Silica Nanospheres

He, Yanling1; Khaleed, Abdul1; Lo, Po Shan1; Ahmad, Ishaq1; Ching Ng, Alan Man2; Djurisic, Aleksandra B.1

2023-06-01

10.1021/acsomega.3c01242

ACS OMEGA   影响因子和分区

2470-1343

Iron-based materials are among the most commonly usedoxygen scavengers.Here, we investigated the mesoporous silica nanosphere (MSN)-supportediron-based scavengers, such as FeO x nanoparticlesand different atomic layer deposition (ALD) coatings (FeO x and Fe). We found that the scavenger performanceis a result of a complex interplay between available Brunauer-Emmett-Tellersurface area and the scavenger composition, with the combination ofinfiltrated nanoparticles and Fe-ALD coating resulting in the bestperformance. When the glucose-based treatment of MSN is used to furtherenhance oxygen scavenging capacity, Fe-ALD coating yields the bestperformance, with a high oxygen adsorption capacity of 126.8 mL/g.ALD deposition of Fe represents a versatile method to introduce Fe-basedoxygen scavengers onto different supports, and it can facilitate theintegration of scavengers with different types of packaging, as thedeposition can be performed at a low temperature of 150 degrees C.

SCI

英语

通讯

University of Hong Kong and Innovation Technology Fund grant[ITS/235/20]

Chemistry

Chemistry, Multidisciplinary

WOS:001010288200001

AMER CHEMICAL SOC

Web of Science

1.Univ Hong Kong, Dept Phys, Hong Kong, Peoples R China
2.Southern Univ Sci & Technol, Core Res Facil, Shenzhen 518055, Guangdong, Peoples R China

He, Yanling,Khaleed, Abdul,Lo, Po Shan,et al. Iron-Based Oxygen Scavengers on Mesoporous Silica Nanospheres[J]. ACS OMEGA,2023,8(24).

He, Yanling,Khaleed, Abdul,Lo, Po Shan,Ahmad, Ishaq,Ching Ng, Alan Man,&Djurisic, Aleksandra B..(2023).Iron-Based Oxygen Scavengers on Mesoporous Silica Nanospheres.ACS OMEGA,8(24).

He, Yanling,et al."Iron-Based Oxygen Scavengers on Mesoporous Silica Nanospheres".ACS OMEGA 8.24(2023).