8.4 adsorption at gas /solid interface Levine pp 397-402 section 13.5 adsorption of gases on Sollas
§8.4 adsorption at gas / solid interface Levine: pp. 397– 402 section 13.5 adsorption of gases on solids
8.4.1 solid surface and specific surface area
8.4.1 solid surface and specific surface area
8. 4. I solid surface and specific surface area (1) Surface of solid: unbalanced force and suspending bond S Surface layer: enlarged interlayer space Suspending bond Single atom catalyst, is it real? Matter that is at or near an interface is not in the same state as those in the interior of a phase. Owing to the suspending bond solid surface is apt to react with other substances How de we stabilize the solid surface?
Si Suspending bond Surface layer: enlarged interlayer space Matter that is at or near an interface is not in the same state as those in the interior of a phase. Owing to the suspending bond, solid surface is apt to react with other substances. How de we stabilize the solid surface? (1) Surface of solid: unbalanced force and suspending bond 8.4.1 solid surface and specific surface area Single atom catalyst, is it real?
8. 4. I solid surface and specific surface area (1) Surface of solid: unbalanced force and suspending bond Unstable Supported metal E 高 nanoparticle catalysts EA Stable (d) Eo Dispersion activation energy single-atom catalysts EA AgGregation activation energy (EA<ED) Aggregation Dispersion(EA> ED) 检索结果:139 来自所有数据库 您的检索:标题 Fig. 8 Charge differences (isosurface value 0.0015 e A-) for (a)O2a ( catalyst)AD标题 s Vig-C3Na.(b) O2aCulg-C3N4(c) Coevig-CN and(d) oav/g-C3Na ( single atom)… The red and green colors represent charge accumulation and depletion
检索结果: 139 (来自 所有数据库) 您的检索: 标题 : (catalyst) AND 标题 : (single atom) ... (1) Surface of solid: unbalanced force and suspending bond 8.4.1 solid surface and specific surface area
8. 4. I solid surface and specific surface area (2) Degree of subdivision 400mJm×6×103m2=2400J arris Surface area Surface atom % cm 6 cm- 3×108 1um6×104cm2 30% lnm6×107cm ~100% (3)Specific area: The surface-to-volume/mass ratio
arris Surface area Surface atom % 1 cm 6 cm2 3 10-8 1 m 6 104 cm2 30% 1 nm 6 107 cm2 ~ 100 % (2) Degree of subdivision (3) Specific area: V S Sv = W S Sw = The surface-to-volume / mass ratio 400 mJm-2 6 103 m2 = 2400 J 8.4.1 solid surface and specific surface area