1. Yintoni i-nanoporous metal material?
I-Nanoporous Metals (NPM) iklasi yezixhobo zetsimbi ezinemibhobho edibeneyo (i-curvature enhle) kunye neziteshi ze-nanoporous (i-negative curvature), i-porosity engekho ngaphantsi kwe-50%, kunye ne-submicron pores (Kubandakanya i-micropores, i-mesopores kunye ne-macropores ene-diameters. ye-50-1000 nm) inegalelo elibalulekileyo kwindawo ethile ye-foam. Njengoko kubonisiwe kuMfanekiso 1, ubungakanani bepore kufuneka bube yinanometer!
Ukwahlulahlula izinto ezirhabaxa zobukhulu obahlukeneyo (ukusuka ekhohlo ukuya ekunene, ukwanda kobukhulu)
Ngokuqhelekileyo, ukudityaniswa kweenanometals ezinamazinyo ubukhulu becala kusetyenziswa i-top-down free corrosion dealloying kunye ne-electrochemical dealloying, kwaye inokulungiswa ngokudibanisa ezantsi ukuya phezulu kusetyenziswa indlela yetemplate. Apha sithetha kakhulu malunga nendlela yokulungiselela ukujongana nokulungisa isinyithi esine-porous. Kwezinye izinto ezisetyenziswa ngokuqhelekileyo nezisetyenziswayo, amacandelo amabini/amacandelo amaninzi anokusetyenziselwa ukuthengisa kufuneka ahlangabezane nezi ngongoma zilandelayo: 1. Ukulingana okunokwenzeka phakathi kwamacandelo makwahluke kakhulu; 2. Umlinganiselo womxholo wamacandelo Kukho umda; 3. Isigaba esisodwa sesisombululo esiqinileyo sinokuqulunqwa.
I-IUPAC Periodic Table of Elements, iibhokisi ezibomvu neziluhlaza zisetyenziswa ngokuqhelekileyo izinto zetsimbi ezidityanisiweyo
Ukongezelela, ukuhanjiswa kwe-nanopore yesinyithi e-nanoporous kunokuba yinto efanayo okanye i-uniform, ngokuqinisekileyo, zombini zikhona kwiimeko ezininzi. Okwangoku, i-crystallographic orientation kunye ne-crystal defects ye-nanoporous metal ixhomekeke kwi-microstructure ye-alloy precursors kunye nenkqubo yokujongana. Ngenxa ye-microstructure ekhethekileyo, isinyithi se-nanoporous sinokubonisa ngaxeshanye iimpawu zetsimbi kunye nezixhobo ze-nanostructured, kwaye izakhiwo zazo zihambelana ngokusondeleyo nombane, imagnethi, i-optical, i-mechanical, i-catalytic kunye ne-electrocatalytic properties.
a). I-TEM ye-np-AuAg, b) imodeli yokwakhiwa kwakhona kwe-3D
2. Iimpawu ze-microscopic zetsimbi ze-nanoporous?
Ngokwethiyori, enye okanye ngaphezulu kwezi ndlela zintathu zilandelayo zinokusebenza xa isinyithi sinyibilika ngokufanelekileyo.
(1) Zombini iintsimbi zenziwe i-ionized, emva koko isinyithi esixabisekileyo sibuyiselwe;
(2) Kuphela isiseko sesinyithi si-ionized kwaye singena kwisisombululo, ngelixa ii-athomu zetsimbi ezihloniphekileyo zihlanganiswe ngokusasazwa komhlaba;
(3) Kuphela sisiseko sesinyithi si-ionize kwaye singene kwisisombululo, kwaye ii-athomu zezinyithi ezimbini zihamba kwisigaba esiqinileyo ngokusasazwa ngobuninzi.
Ixesha lokuposa: Feb-14-2022
