Structure and properties of KNi–hexacyanoferrate Prussian Blue Analogues for efficient CO2 capture: Host–guest interaction chemistry and dynamics of CO2 adsorption

Porous Structural Properties of K or Na-Co Hexacyanoferrates as Efficient Materials for CO2 Capture

“…Consequently, sample M11 is used to further perform all CO 2 characterization experiments so that the diffusion processes of CO 2 can be facilitated and the adsorption sites can be easily accessed by CO 2 molecules. The high adsorption capacity presented by sample M11 is comparable with capacities reported for CoHCFs [ 59 ]. The CO 2 adsorption and desorption isotherms at temperatures of 273–353 K on sample M11 are depicted in Figure 8 b.…”

“…In contrast, Co and Fe atoms are classified as Lewis acids that do not bind CO 2 molecules easily due to the acidic nature of this gas. It was reported very recently [ 24 , 59 ] that the K + ions exposed after the removal of water molecules from the crystallites of MOFs and successfully implanted in the MOFs produce adsorption sites with a strong affinity towards CO 2 molecules through a symbiotic effect, and the K + ions act effectively as gas confinement sites improving the CO 2 -framework affinity, thus enhancing the values of Q st . Q st values show a decreasing trend as CO 2 surface covering increases indicating that the CoHCFs are distinguished by a high degree of heterogeneity and showing differences in the adsorbate–adsorbent, and adsorbate–adsorbate interplays.…”

Continuous and large-scale synthesis of Ni–Co PBA nanoparticles with a tunable particle size in a microreactor

“…Gao et al 6 described the construction of MnO 2 /Mn 3 O 4 @Ni-Co/GC nanocubes with porous structures and ultrathin nanosheets by self-modeling and in situ synthesis strategies, which exhibited excellent electromagnetic absorption properties. Controlling of agglomeration of PBAs is fundamental to be exploited in diverse application-based fields such as catalysis, 7 energy storage, [8][9][10] chemical sensing, 11 gas storage, separation, 12 etc. Traditional methods such as hydrothermal, solvothermal or stirring-mix methods for synthesizing MOFs are time-consuming.…”

Different Agglomeration Processes Induced by the Varied Interaction of Fe–Fe Analogues with Differently Charged Surfactants

“…6 Highly crystallized Na 2−x Fe-[Fe(CN) 6 ] y shows better stability as well as higher battery capacity than the low crystallized ones. 9 Besides tuning the PBAs through regulating the synthetic strategies, 6,9,10 many efforts have been devoted to study the effect of surfactants on the structures and sizes of PBA materials as well as on the catalytic activity of the PBA-derived materials. 11−14 For example, it was found that the anionic surfactant sodium dodecyl sulfate (SDS) tends to adsorb on the (111) face of MnCo PB, which inhibits the decomposition of the (111) face and the growth of the (100) face, leading to the eventual formation of a hollow cube.…”

“…Besides tuning the PBAs through regulating the synthetic strategies, ,, many efforts have been devoted to study the effect of surfactants on the structures and sizes of PBA materials as well as on the catalytic activity of the PBA-derived materials. − For example, it was found that the anionic surfactant sodium dodecyl sulfate (SDS) tends to adsorb on the (111) face of MnCo PB, which inhibits the decomposition of the (111) face and the growth of the (100) face, leading to the eventual formation of a hollow cube. Moreover, the derived Mn 2 CO 2 C (after a series of treatment) composite exhibits good ORR performance and stability .…”