KANAZAWA, Hapani, 8 o Hune, 2023 /PRNewswire/ — E pūrongo ana ngā kairangahau o Te Whare Wānanga o Kanazawa me pēhea te whakamahi i tētahi paparanga tino angiangi o te tine disulfide hei whakateretere i te whakaiti matū o te hauhā waro. mō tētahi hapori kore-waro.
Ko te hangarua i te hauhā waro (CO2) e tukuna ana mai i ngā tukanga ahumahi he mea nui i roto i te rapunga tere a te tangata mō tētahi hapori pumau, kore-waro. Nā konei, kei te rangahauhia whānuitia ngā kaiwhakaoho hiko e taea ai te huri i te CO2 ki ētahi atu hua matū iti ake te kino. Ko tētahi momo rauemi e mōhiotia ana ko ngā dichalcogenides whakarewa rua-ahu (2D) he kaitono hei kaiwhakaoho hiko mō te hurihanga CO, engari he maha ngā wā ka whakatairangahia e ēnei rauemi ngā tauhohenga whakataetae, ka whakaiti i tō rātou whai huatanga. Kua tautuhia e Yasufumi Takahashi me ōna hoa mahi i te Nanobiology Science Institute (WPI-NanoLSI) o te Whare Wānanga o Kanazawa tētahi dichalcogenide whakarewa rua-ahu ka taea te whakaiti i te CO2 ki te waikawa formic, ehara i te mea nō te taiao anake. Heoi anō, he hononga takawaenga tēnei hononga. hua o te hanganga matū.
I whakaritea e Takahashi mā ngā hoa mahi te mahi whakateretere o te disulfide rua-ahu (MoS2) me te tin disulfide (SnS2). He dichalcogenides whakarewa rua-ahu e rua, ko te mea whakamutunga he mea tino hirahira nā te mea e mōhiotia ana ko te tine parakore he whakateretere mō te hanga waikawa formic. I whakaatuhia e te whakamātautau hikohiko o ēnei matū ka tere ake te tauhohenga whanaketanga hauwai (HER) mā te whakamahi i te MoS2 hei utu mō te huringa CO2. Ko te HER e pā ana ki te tauhohenga e whakaputa ana i te hauwai, he mea whai hua ina hiahia ana ki te whakaputa wahie hauwai, engari i roto i te take o te whakaiti CO2, he tukanga whakataetae kāore e hiahiatia. I tetahi atu taha, i whakaatu a SnS2 i te mahi whakaiti CO2 pai, ā, i aukati i te HER. I inehia hoki e ngā kairangahau te paura SnS2 papatipu, ā, i kitea he iti ake te kaha ki te whakaiti whakateretere o te CO2.
Hei mārama ki te wāhi kei reira ngā pae hohe whakakorikori i roto i te SnS2 me te take he pai ake te mahi a te rauemi 2D i te matū papatipu, i whakamahia e ngā kaipūtaiao tētahi tikanga e kiia nei ko te karu hikohiko pūtau matawai (SECCM). Ka whakamahia te SECCM hei nanopipette, e hanga ana i tētahi pūtau hikohiko āhua meniscus nano-tauine mō ngā tirotiro e aro ana ki ngā tauhohenga mata i runga i ngā tauira. I whakaatuhia e ngā inenga he hohe whakakorikori te mata katoa o te pepa SnS2, ehara i te mea ko ngā huānga "pūhara" "taha" rānei o te hanganga anake. Mā tēnei anō hoki e whakamārama he aha te take he nui ake te mahi a te 2D SnS2 ki te SnS2 papatipu.
Mā ngā tataunga ka kitea anō ngā tauhohenga matū e puta ana. Ina koa, kua kitea te hanganga o te waikawa formic hei huarahi tauhohenga pai mō te kaha ina whakamahia te 2D SnS2 hei whakakorikori.
Ko ngā kitenga a Takahashi mā he tohu i tētahi taahiraa nui ki te whakamahi i ngā kaiwhakaoho hiko-rua-ahu i roto i ngā tono whakaiti CO2 hiko. E kī ana ngā kaipūtaiao: "Mā ēnei hua ka pai ake te mārama me te whakawhanake i tētahi rautaki whakaoho hiko whakarewa dichalcogenide-ahu-rua mō te whakaiti hiko o te hauhā waro hei whakaputa i ngā hauwaiwaro, ngā waipiro, ngā waikawa ngako me ngā alkene me te kore he pānga taha.
Ko ngā rau rua-ahu (2D) (ngā paparanga kotahi rānei) o ngā dichalcogenide whakarewa he rauemi momo MX2 kei reira ko M he ngota whakarewa, pērā i te molybdenum (Mo) te tine rānei (Sn), ā, ko X he ngota chalcogen, pērā i te whanariki (C). Ka taea te whakaatu i te hanganga hei paparanga o ngā ngota X i runga i te paparanga o ngā ngota M, e tū ana i runga i te paparanga o ngā ngota X. Ko ngā dichalcogenide whakarewa rua-ahu kei roto i tētahi akomanga o ngā rauemi rua-ahu (kei roto hoki ko te graphene), ko te tikanga he angiangi. He rerekē ngā āhuatanga ā-tinana o ngā rauemi 2D i ō rātou hoa papatipu (3D).
Kua rangahaua ngā dichalcogenide whakarewa rua-ahu mō tā rātou mahi electrocatalytic i roto i te tauhohenga whanaketanga hauwai (HER), he tukanga matū e whakaputa hauwai ana. Engari ināianei, kua kitea e Yasufumi Takahashi me ōna hoa mahi i Te Whare Wānanga o Kanazawa kāore te dichalcogenide whakarewa rua-ahu SnS2 e whakaatu ana i te mahi catalytic HER; he āhuatanga tino nui tēnei i roto i te horopaki rautaki o te ara.
Yusuke Kawabe, Yoshikazu Ito, Yuta Hori, Suresh Kukunuri, Fumiya Shiokawa, Tomohiko Nishiuchi, Samuel Chon, Kosuke Katagiri, Zeyu Xi, Chikai Lee, Yasuteru Shigeta and Yasufumi Takahashi. Pereti 1T/1H-SnS2 mo te whakawhiti hiko o CO2, ACS XX, XXX–XXX (2023).
Taitara: Ngā whakamātautau matawai i runga i te karu hikohiko o ngā pūtau hei ako i te mahi whakaterenga o ngā rau SnS2 hei whakaiti i ngā tukunga CO2.
I whakatūria te Nanobiological Institute o Te Whare Wānanga o Kanazawa (NanoLSI) i te tau 2017 hei wāhanga o te kaupapa o te pokapū rangahau o te ao MEXT. Ko te whāinga o te kaupapa he waihanga i tētahi pokapū rangahau o te ao. Mā te whakakotahi i te mōhiotanga nui rawa atu ki te karuārai koiora, ka whakatūhia e NanoLSI te "hangarau nanoendoscopy" mō te whakaahua tika, te tātari me te whakahaere i ngā ngota koiora hei whiwhi māramatanga ki ngā tikanga e whakahaere ana i ngā āhuatanga ora pēnei i te mate.
Hei whare wānanga mātauranga whānui matua i te takutai moana o Hapani, he nui ngā takoha a Te Whare Wānanga o Kanazawa ki te mātauranga teitei me te rangahau mātauranga i Hapani mai i tōna whakatūnga i te tau 1949. E toru ngā kāreti o te whare wānanga me te 17 ngā kura e tuku ana i ngā momo mātauranga pēnei i te rongoā, te rorohiko, me te mātauranga tangata.
Kei Kanazawa te whare wānanga, he tāone rongonui mō tōna hītori me tōna ahurea, i te takutai moana o Hapani. Mai i te wā o te mana rangatira (1598-1867), kua whai mana te mana hinengaro o Kanazawa. E rua ngā puni matua o Te Whare Wānanga o Kanazawa, ko Kakuma me Takaramachi, ā, e 10,200 ngā ākonga, e 600 o rātou he ākonga o tāwāhi.
Tirohia ngā ihirangi taketake: https://www.prnewswire.com/news-releases/kanazawa-university-research-enhancing-carbon-dioxide-reduction-301846809.html