1. Iyini impahla yensimbi ye-nanoporous?
I-Nanoporous Metals (NPM) iyikilasi lezinto zensimbi ezinemigqa exhumene (i-curvature enhle) neziteshi ezinanoporous (i-curvature engalungile), i-porosity yayo engekho ngaphansi kwama-50%, kanye nama-submicron pores (Kubandakanya ama-micropores, ama-mesopores nama-macropores anamadayamitha. ye-50-1000 nm) inegalelo elikhulu endaweni ethile yegwebu. Njengoba kukhonjisiwe kuMfanekiso 1, usayizi wembotshana kufanele ube usayizi we-nanometer!
Ukuhlukaniswa kwezinto ezinama-porous ezinosayizi abahlukene (kusuka kwesobunxele kuye kwesokudla, ukwanda ngosayizi)
Ngokuvamile, ukuhlanganiswa kwama-nanometals anezimbotshana ngokuyinhloko kwenziwa ngokusebenzisa ukugqwala kwamakhemikhali okuphuma phezulu kuya phansi kanye nokuthengiswa kwe-electrochemical, futhi kungalungiselelwa ngokuhlanganisa okusuka phezulu kuya phezulu kusetshenziswa indlela yesifanekiso. Lapha sikhuluma ngokuyinhloko mayelana nendlela yokulungiselela yokusingatha ukulungisa izinsimbi ezinama-porous. Kwezinye izakhi ezivame ukusetshenziswa futhi ezisetshenziswayo, izingxenye ezimbili/izingxenye eziningi ezingasetshenziselwa ukuthengiswa kufanele zihlangabezane nala maphuzu alandelayo: 1. Amandla okulingana phakathi kwezingxenye kumele ahluke kakhulu; 2. Isilinganiso sokuqukethwe kwezingxenye Kukhona umkhawulo; 3. Isigaba esisodwa sesixazululo esiqinile singakhiwa.
I-IUPAC Periodic Table of Elements, amabhokisi abomvu naluhlaza okwesibhakabhaka avame ukusetshenziswa izakhi zensimbi ezidayiswayo
Ngaphezu kwalokho, ukusatshalaliswa kwe-nanopore kwezinsimbi ze-nanoporous kungaba iyunifomu noma okungafani, yiqiniso, kokubili kukhona ezimweni eziningi. Khonamanjalo, umumo we-crystallographic kanye nokukhubazeka kwekristalu kwezinsimbi ze-nanoporous kuncike ku-microstructure yama-alloy precursors kanye nenqubo yokuthengisa. Ngenxa ye-microstructure eyingqayizivele, izinsimbi ze-nanoporous zingabonisa ngesikhathi esisodwa izakhiwo zensimbi nezinto ezisetshenziswayo, futhi izakhiwo zazo zihlobene eduze nezinto zikagesi, kazibuthe, ezibonakalayo, zemishini, ze-catalytic kanye ne-electrocatalytic.
a). I-TEM ye-np-AuAg, b) Imodeli yokwakhiwa kabusha kwe-3D
2. Izici ezincane zensimbi ye-nanoporous?
Ngokombono, indlela eyodwa noma ngaphezulu kwezintathu ezilandelayo ingase isebenze lapho insimbi incibilika ngokukhethayo.
(1) Zombili izinsimbi zine-ionized, bese insimbi eyigugu iphinde ifakwe;
(2) Insimbi eyisisekelo kuphela efakwe i-ionized futhi ingena esixazululweni, kuyilapho ama-athomu ensimbi ehlonishwayo ehlanganiswa ngokusakazwa komhlaba;
(3) Insimbi eyisisekelo kuphela eyenza ionini futhi ingene esixazululweni, futhi ama-athomu ezinsimbi ezimbili anyakaze esigabeni esiqinile ngokusakazwa ngobuningi.
Isikhathi sokuthumela: Feb-14-2022
