1. Ibikoresho bya nanoporous ni iki?
Nanoporous Metals (NPM) ni icyiciro cyibikoresho byibyuma bifitanye isano na ligaments (positif positif positif) hamwe numuyoboro wa nanoporous (curvature negative), ububobere bwabwo butari munsi ya 50%, hamwe nuduce twa subicron (Harimo micropores, mesopores na macropores hamwe na diameter ya 50-1000 nm) bafite uruhare runini mubuso bwihariye bwa furo. Nkuko bigaragara ku gishushanyo 1, ubunini bwa pore bugomba kuba bunini bwa nanometero!
Gutondekanya ibikoresho byoroshye bifite ubunini butandukanye (kuva ibumoso ugana iburyo, kwiyongera mubunini)
Muri rusange, synthèse ya nanometal nini cyane cyane binyuze mumashanyarazi yo hejuru-hasi yubusa ya ruswa yangirika hamwe na electrochemical dealloying, kandi irashobora no gutegurwa na synthesis yo hasi-hejuru ukoresheje uburyo bwicyitegererezo. Hano turavuga cyane cyane kuburyo bwo gutegura dealloying kugirango dutegure ibyuma byoroshye. Kubintu bimwe bikunze gukoreshwa no guteshwa agaciro, ibice bibiri / ibice byinshi bishobora gukoreshwa mugutandukana bigomba kuba byujuje ingingo zikurikira: 1. Ubushobozi bwo kuringaniza ibice bigomba kuba bitandukanye cyane; 2. Ikigereranyo cyibirimo bigize ibice Hariho urwego; 3. Icyiciro kimwe gikemutse gishobora gushirwaho.
IUPAC Ibihe Byibihe, Ibisanduku bitukura nubururu bikoreshwa cyane mubyuma bitagabanijwe
Mubyongeyeho, gukwirakwiza nanopore gukwirakwiza nanoporus birashobora kuba bimwe cyangwa bidahuje, birumvikana ko byombi bibaho mubihe byinshi. Hagati aho, icyerekezo cya kristalografiya hamwe nubusembwa bwa kristu ya metero ya nanoporus biterwa na microstructure ya alloy precursors hamwe nuburyo bwo gutesha agaciro. Bitewe na microstructure idasanzwe, ibyuma bya nanoporous birashobora icyarimwe kwerekana icyarimwe cyibyuma nibikoresho bya nanostructures, kandi imiterere yabyo ifitanye isano rya bugufi nu mashanyarazi, magnetiki, optique, ubukanishi, catalitike na electrocatalytic.
a). TEM ya np-AuAg, b) Moderi yo kwiyubaka 3D
2. Ibiranga microscopique biranga ibyuma bya nanoporous?
Mubyigisho, bumwe cyangwa bwinshi muburyo butatu bukurikira bushobora kuba kukazi mugihe icyuma gishonga cyane.
(1) Ibyuma byombi ni ion, hanyuma ibyuma byagaciro bigasubirwamo;
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Igihe cyo kohereza: Gashyantare-14-2022
