1. Te whakarite paninga
Hei whakahaere i te whakamātautau hikohiko o muri mai, ka tīpakohia te 30mm × 4 mm 304 te maitai kore waikura hei turanga. Whakakanapahia, ka tangohia te paparanga waikura me ngā ira waikura i runga i te mata o te papa ki te pepa kirikiri, ka maka ki roto i te ipu kei roto te acetone, ka rongoatia ngā paru i runga i te mata o te papa ki te horoi ultrasonic bg-06c o te kamupene hiko Bangjie mō te 20 meneti, ka tangohia ngā para kakahu i runga i te mata o te papa whakarewa ki te waipiro me te wai whakapūkara, ka whakamaroke ki te pupuhi. Kātahi ka whakaritea te alumina (Al2O3), te graphene me te nanotube waro ranu (mwnt-coohsdbs) i te ōwehenga (100: 0: 0, 99.8: 0.2: 0, 99.8: 0: 0.2, 99.6: 0.2: 0.2), ka maka ki roto i te mira pōro (qm-3sp2 o te wheketere taputapu Nanjing NANDA) mō te mira pōro me te whakaranu. I whakatakotoria te tere hurihuri o te mira pōro ki te 220 R/min, ā, i hurihia te mira pōro ki
I muri i te mira pōro, whakatakotoria te tere hurihuri o te tāke mira pōro kia 1/2 i muri i te otinga o te mira pōro, ā, whakatakotoria te tere hurihuri o te tāke mira pōro kia 1/2 i muri i te otinga o te mira pōro. Ka whakaranua te konganuku uku me te mea here kia ōrite te ranunga, kia rite ki te wāhanga papatipu o te 1.0 ∶ 0.8. Hei whakamutunga, i whiwhihia te paninga uku piri mā te tukanga whakamaroke.
2. Whakamātautau waikura
I roto i tēnei rangahau, ko te whakamātautau waikura hikohiko e whakamahi ana i te teihana mahi hikohiko Shanghai Chenhua chi660e, ā, ko te whakamātautau e whakamahi ana i tētahi pūnaha whakamātautau hikohiko e toru. Ko te hikohiko konukawata te hikohiko āwhina, ko te hikohiko hiriwa pūhaumāota te hikohiko tohutoro, ā, ko te tauira pania te hikohiko mahi, me te horahanga whai hua o te 1cm2. Honoa te hikohiko tohutoro, te hikohiko mahi me te hikohiko āwhina ki roto i te pūtau hikohiko me te taputapu, e whakaaturia ana i ngā Pikitia 1 me te 2. I mua i te whakamātautau, rumakina te tauira ki roto i te irahiko, he 3.5% te otinga NaCl.
3. Tātaritanga ripal o te waikura hikohiko o ngā paninga
E whakaatu ana te Pikitia 3 i te kōpiko Tafel o te papa kore paninga me te paninga uku kua pania ki ngā tāpiringa nano rerekē i muri i te waikura hiko mō te 19h. Ko ngā raraunga whakamātautau ngaohiko waikura, te kiato ia waikura me te aukati hiko i whiwhi mai i te whakamātautau waikura hiko e whakaaturia ana i te Ripanga 1.
Tukuna
Ina iti ake te kiato o te iahiko waikura, ā, ina teitei ake te kaha o te ātete waikura, ka pai ake te pānga ātete waikura o te paninga. Ka kitea i te Pikitia 3 me te ripanga 1, ina 19h te roa o te wā waikura, ko te ngaohiko waikura mōrahi o te anga whakarewa tahanga he -0.680 V, ā, ko te kiato iahiko waikura o te anga te mea nui rawa atu, tae atu ki te 2.890 × 10-6 A/cm2. I te paninga ki te paninga uku alumina parakore, ka heke te kiato iahiko waikura ki te 78%, ā, ko te PE he 22.01%. E whakaatu ana tēnei he pai ake te mahi tiaki a te paninga uku, ā, ka taea e ia te whakapai ake i te ātete waikura o te paninga i roto i te electrolyte kūpapa.
I te tāpiritanga o te 0.2% mwnt-cooh-sdbs, 0.2% graphene rānei ki te paninga, ka heke te kiato o te ia waikura, ka piki ake te ātete, ā, ka pai ake te ātete waikura o te paninga, me te PE o te 38.48% me te 40.10% ia. Ina pania te mata ki te 0.2% mwnt-cooh-sdbs me te 0.2% paninga alumina whakauru graphene, ka heke iho te ia waikura mai i te 2.890 × 10-6 A / cm2 ki raro ki te 1.536 × 10-6 A / cm2, ko te uara ātete mōrahi, ka piki ake mai i te 11388 Ω ki te 28079 Ω, ā, ka taea e te PE o te paninga te eke ki te 46.85%. E whakaatu ana tēnei he pai te ātete waikura o te hua ūnga kua whakaritea, ā, ko te pānga mahi tahi o ngā nanotubes waro me te graphene ka taea te whakapai ake i te ātete waikura o te paninga uku.
4. Te pānga o te wā rumaki ki te ārainga paninga
Hei tūhura atu i te ātete waikura o te paninga, me te whakaaro ki te awe o te wā rumaki o te tauira ki te whakamātautau i roto i te electrolyte, ka whiwhihia ngā ānau huringa o te ātete o ngā paninga e whā i ngā wā rumaki rerekē, e whakaaturia ana i te Pikitia 4.
Tukuna
I te wā tuatahi o te rumaki (10 h), nā te pai o te matotoru me te hanganga o te paninga, he uaua te rumaki i te electrolyte ki roto i te paninga. I tēnei wā, ka whakaatuhia e te paninga uku he ātete teitei. I muri i te rumaki mō tētahi wā, ka tino heke te ātete, nā te mea i te roanga o te wā, ka āta hanga e te electrolyte he awa waikura mā roto i ngā pūwero me ngā kapiti o te paninga ka uru ki roto i te matrix, ka hua ake he hekenga nui o te ātete o te paninga.
I te wāhanga tuarua, ina piki ake ngā hua waikura ki tētahi rahinga, ka āraia te horapa, ā, ka āta āraia te āputa. I taua wā anō, ina uru te irahiko ki roto i te hononga hononga o te paparanga/matihao o raro hononga, ka tauhohe ngā ngota wai ki te huānga Fe i roto i te matihao i te hononga paninga/matihao hei whakaputa i tētahi kiriata waikura whakarewa angiangi, e ārai ana i te urunga o te irahiko ki roto i te matihao, ā, ka whakanuia te uara ātete. Ina waikurahia te matihao whakarewa tahanga e te irahiko hiko, ka puta te nuinga o te rerenga wai matomato ki raro o te irahiko. Kāore te otinga irahiko i huri te tae i te wā e irahiko ana te tauira paninga, ka taea te whakaatu i te noho o te tauhohenga matū i runga ake nei.
Nā te poto o te wā rumaki me te nui o ngā awe o waho, kia whiwhi ai i te whanaungatanga huringa tika o ngā tawhā hikohiko, ka tātarihia ngā kōpiko Tafel o te 19 hāora me te 19.5 hāora. Ko te kiato iahiko waikura me te ātete i whiwhihia e te pūmanawa tātari zsimpwin e whakaaturia ana i te Ripanga 2. Ka kitea i te wā i rumakina ai mō te 19 hāora, ki te whakaritea ki te papa tahanga, he iti ake te kiato iahiko waikura o ngā rauemi tāpiri nano kei roto te paninga alumina parakore me te paninga whakakotahi alumina kei roto. He tata rite te uara ātete o ngā nanotube waro kei roto te paninga uku me te paninga kei roto te graphene, engari he nui ake te hanganga paninga me ngā nanotube waro me ngā rauemi whakakotahi graphene. Nā te mea ko te pānga mahi tahi o ngā nanotube waro kotahi-ahu me te graphene rua-ahu ka whakapai ake i te ātete waikura o te rauemi.
I te roanga ake o te wā rumaki (19.5 h), ka piki ake te ātete o te papa tahanga, e tohu ana kei te wāhanga tuarua o te waikura, ā, ka puta he kiriata waikura whakarewa ki te mata o te papa. Waihoki, i te roanga ake o te wā, ka piki ake hoki te ātete o te paninga uku alumina parakore, e tohu ana i tēnei wā, ahakoa kei reira te pānga puhoi o te paninga uku, kua uru te electrolyte ki te hononga hononga o te paninga/matihao, ā, kua puta he kiriata waikura mā te tauhohenga matū.
Ki te whakatauritea ki te paninga alumina kei roto ko te 0.2% mwnt-cooh-sdbs, te paninga alumina kei roto ko te 0.2% graphene me te paninga alumina kei roto ko te 0.2% mwnt-cooh-sdbs me te 0.2% graphene, i tino heke te ātete o te paninga i te roanga o te wā, i heke mā te 22.94%, 25.60% me te 9.61% ia, e tohu ana kāore te electrolyte i uru ki roto i te hononga i waenga i te paninga me te papa i tēnei wā. Nā te hanganga o ngā nanotubes waro me te graphene i aukati i te urunga o te electrolyte ki raro, ā, nā reira ka tiakina te matrix. Ka manatokohia anō te pānga mahi tahi o ngā mea e rua. He pai ake te ātete waikura o te paninga kei roto ngā rauemi nano e rua.
Mā te kōpiko Tafel me te kōpiko huringa o te uara ārai hiko, i kitea ko te paninga uku alumina me te graphene, ngā nanotube waro me tā rātou ranunga ka taea te whakapai ake i te ātete waikura o te anga whakarewa, ā, ko te pānga mahi tahi o ngā mea e rua ka taea te whakapai ake i te ātete waikura o te paninga uku piri. Hei tūhura atu i te pānga o ngā tāpiringa nano ki te ātete waikura o te paninga, i kitea te āhua o te mata moroiti o te paninga i muri i te waikura.
Tukuna
E whakaatu ana te Pikitia 5 (A1, A2, B1, B2) i te āhua o te mata o te maitai kore waikura 304 kua whakakikoruatia me ngā uku alumina parakore kua pania ki ngā whakanui rerekē i muri i te waikura. E whakaatu ana te Pikitia 5 (A2) ka taratara te mata i muri i te waikura. Mō te papa tahanga, he maha ngā poka waikura nui e puta ana i runga i te mata i muri i te rumakina ki te electrolyte, e tohu ana he ngoikore te ātete waikura o te matrix konganuku tahanga, ā, he ngāwari te electrolyte ki te uru ki roto i te matrix. Mō te paninga uku alumina parakore, e whakaaturia ana i te Pikitia 5 (B2), ahakoa ka puta ngā hongere waikura porous i muri i te waikura, ko te hanganga matotoru me te ātete waikura pai o te paninga uku alumina parakore ka ārai pai i te urunga mai o te electrolyte, e whakamārama ana i te take mō te whakapainga whai hua o te aukati o te paninga uku alumina.
Tukuna
Te āhua o te mata o te mwnt-cooh-sdbs, ngā paninga kei roto te 0.2% graphene me ngā paninga kei roto te 0.2% mwnt-cooh-sdbs me te 0.2% graphene. Ka kitea ko ngā paninga e rua kei roto te graphene i te Pikitia 6 (B2 me C2) he hanganga papatahi, he piri te here i waenga i ngā matūriki i roto i te paninga, ā, he piri te takai o ngā matūriki whakakotahi e te piripiri. Ahakoa kua memeha te mata e te electrolyte, he iti ake ngā awaawa pore e hangaia ana. I muri i te waikura, he matotoru te mata paninga, ā, he iti noa ngā hanganga hapa. Mō te Pikitia 6 (A1, A2), nā ngā āhuatanga o te mwnt-cooh-sdbs, he hanganga pore ōrite te paninga i mua i te waikura. I muri i te waikura, ka whaiti, ka roa ngā pore o te wāhanga taketake, ā, ka hohonu ake te awaawa. Ki te whakatauritea ki te Pikitia 6 (B2, C2), he nui ake ngā hapa o te hanganga, e rite ana ki te tohatoha rahi o te uara aukati paninga i whiwhi mai i te whakamātautau waikura hiko. E whakaatu ana tēnei ko te paninga uku alumina kei roto ko te graphene, inā koa te ranunga o te graphene me te ngongo waro nano, te mea tino ātete ki te waikura. Nā te mea ka taea e te hanganga o te ngongo waro nano me te graphene te aukati i te horapa o te kapiti me te tiaki i te anga.
5. Kōrero me te whakarāpopototanga
Mā te whakamātautau ātete waikura o ngā nanotube waro me ngā tāpiringa graphene i runga i te paninga uku alumina me te tātari i te hanganga moroiti o te mata o te paninga, ka puta ngā whakatau e whai ake nei:
(1) I te wā i 19 hāora te roa o te waikura, mā te tāpiri i te 0.2% o te nanotube waro ranu + 0.2% o te paninga uku alumina whakauru rauemi graphene, ka piki ake te kiato o te iahiko waikura mai i te 2.890 × 10-6 A / cm2 ki raro ki te 1.536 × 10-6 A / cm2, ka piki ake te aukati hiko mai i te 11388 Ω ki te 28079 Ω, ā, ko te kaha ātete waikura te mea nui rawa atu, 46.85%. Ki te whakatauritea ki te paninga uku alumina parakore, he pai ake te ātete waikura o te paninga whakakotahi me te graphene me ngā nanotube waro.
(2) I te roanga ake o te wā rumaki o te irahiko, ka uru te irahiko ki roto i te mata hononga o te paninga/papa hei hanga i te kiriata waikura whakarewa, e aukati ana i te urunga o te irahiko ki roto i te papa. Ka heke te aukati hiko i te tuatahi, kātahi ka piki ake, ā, he ngoikore te ātete waikura o te paninga uku alumina parakore. Nā te hanganga me te mahi tahi o ngā nanotubes waro me te graphene i aukati te urunga o te irahiko ki raro. I te wā i rumakina ai mō te 19.5 hāora, ka heke te aukati hiko o te paninga kei roto ngā rauemi nano mā te 22.94%, 25.60% me te 9.61%, ā, he pai te ātete waikura o te paninga.
6. Te tikanga awe o te ātete ki te waikura o te paninga
Mā te kōpiko Tafel me te kōpiko huringa o te uara ārai hiko, i kitea ko te paninga uku alumina me te graphene, ngā nanotube waro me tā rātou ranunga ka taea te whakapai ake i te ātete waikura o te anga whakarewa, ā, ko te pānga mahi tahi o ngā mea e rua ka taea te whakapai ake i te ātete waikura o te paninga uku piri. Hei tūhura atu i te pānga o ngā tāpiringa nano ki te ātete waikura o te paninga, i kitea te āhua o te mata moroiti o te paninga i muri i te waikura.
E whakaatu ana te Pikitia 5 (A1, A2, B1, B2) i te āhua o te mata o te maitai kore waikura 304 kua whakakikoruatia me ngā uku alumina parakore kua pania ki ngā whakanui rerekē i muri i te waikura. E whakaatu ana te Pikitia 5 (A2) ka taratara te mata i muri i te waikura. Mō te papa tahanga, he maha ngā poka waikura nui e puta ana i runga i te mata i muri i te rumakina ki te electrolyte, e tohu ana he ngoikore te ātete waikura o te matrix konganuku tahanga, ā, he ngāwari te electrolyte ki te uru ki roto i te matrix. Mō te paninga uku alumina parakore, e whakaaturia ana i te Pikitia 5 (B2), ahakoa ka puta ngā hongere waikura porous i muri i te waikura, ko te hanganga matotoru me te ātete waikura pai o te paninga uku alumina parakore ka ārai pai i te urunga mai o te electrolyte, e whakamārama ana i te take mō te whakapainga whai hua o te aukati o te paninga uku alumina.
Te āhua o te mata o te mwnt-cooh-sdbs, ngā paninga kei roto te 0.2% graphene me ngā paninga kei roto te 0.2% mwnt-cooh-sdbs me te 0.2% graphene. Ka kitea ko ngā paninga e rua kei roto te graphene i te Pikitia 6 (B2 me C2) he hanganga papatahi, he piri te here i waenga i ngā matūriki i roto i te paninga, ā, he piri te takai o ngā matūriki whakakotahi e te piripiri. Ahakoa kua memeha te mata e te electrolyte, he iti ake ngā awaawa pore e hangaia ana. I muri i te waikura, he matotoru te mata paninga, ā, he iti noa ngā hanganga hapa. Mō te Pikitia 6 (A1, A2), nā ngā āhuatanga o te mwnt-cooh-sdbs, he hanganga pore ōrite te paninga i mua i te waikura. I muri i te waikura, ka whaiti, ka roa ngā pore o te wāhanga taketake, ā, ka hohonu ake te awaawa. Ki te whakatauritea ki te Pikitia 6 (B2, C2), he nui ake ngā hapa o te hanganga, e rite ana ki te tohatoha rahi o te uara aukati paninga i whiwhi mai i te whakamātautau waikura hiko. E whakaatu ana tēnei ko te paninga uku alumina kei roto ko te graphene, inā koa te ranunga o te graphene me te ngongo waro nano, te mea tino ātete ki te waikura. Nā te mea ka taea e te hanganga o te ngongo waro nano me te graphene te aukati i te horapa o te kapiti me te tiaki i te anga.
7. Kōrero me te whakarāpopototanga
Mā te whakamātautau ātete waikura o ngā nanotube waro me ngā tāpiringa graphene i runga i te paninga uku alumina me te tātari i te hanganga moroiti o te mata o te paninga, ka puta ngā whakatau e whai ake nei:
(1) I te wā i 19 hāora te roa o te waikura, mā te tāpiri i te 0.2% o te nanotube waro ranu + 0.2% o te paninga uku alumina whakauru rauemi graphene, ka piki ake te kiato o te iahiko waikura mai i te 2.890 × 10-6 A / cm2 ki raro ki te 1.536 × 10-6 A / cm2, ka piki ake te aukati hiko mai i te 11388 Ω ki te 28079 Ω, ā, ko te kaha ātete waikura te mea nui rawa atu, 46.85%. Ki te whakatauritea ki te paninga uku alumina parakore, he pai ake te ātete waikura o te paninga whakakotahi me te graphene me ngā nanotube waro.
(2) I te roanga ake o te wā rumaki o te irahiko, ka uru te irahiko ki roto i te mata hononga o te paninga/papa hei hanga i te kiriata waikura whakarewa, e aukati ana i te urunga o te irahiko ki roto i te papa. Ka heke te aukati hiko i te tuatahi, kātahi ka piki ake, ā, he ngoikore te ātete waikura o te paninga uku alumina parakore. Nā te hanganga me te mahi tahi o ngā nanotubes waro me te graphene i aukati te urunga o te irahiko ki raro. I te wā i rumakina ai mō te 19.5 hāora, ka heke te aukati hiko o te paninga kei roto ngā rauemi nano mā te 22.94%, 25.60% me te 9.61%, ā, he pai te ātete waikura o te paninga.
(3) Nā ngā āhuatanga o ngā nanotube waro, ko te paninga i tāpirihia ki ngā nanotube waro anake he hanganga porotaka ōrite i mua i te waikura. I muri i te waikura, ka whaiti, ka roa ngā pore o te wāhanga taketake, ā, ka hohonu ake ngā awaawa. He papatahi te hanganga o te paninga kei roto ko te graphene i mua i te waikura, he tata te hononga i waenga i ngā matūriki i roto i te paninga, ā, he piri te takai o ngā matūriki whakakotahi ki te piripiri. Ahakoa kua waikura te mata e te electrolyte i muri i te waikura, he iti noa ngā awaawa pore, ā, he matotoru tonu te hanganga. Ka taea e te hanganga o ngā nanotube waro me te graphene te aukati i te horapa o te kapiti me te tiaki i te matrix.
Wā tuku: Maehe-09-2022