Pehea e ʻike ai i ka mana electrode o ke keleawe?

He mea hao nui ke keleawe no nā tausani makahiki. I kēia lā, hoʻohana nui ʻia i nā ʻano hana like ʻole. E ʻimi ana kēia ʻatikala i ka pono electrode o ke keleawe me ka kikoʻī.

He aha ka mana electrode?

ʻO ka mana electrode ka volta e hiki ke loaʻa mai kahi electrode i loko o ke kelepona electrochemical. He ana ia o ka makemake o ka electrode e loaʻa a lilo paha i nā electrons ke hoʻopili ʻia me kahi hopena.

Hoʻoholo ʻia ka mana electrode e kekahi mau mea, e komo pū me ka ʻike o nā ion i ka hopena, ka mahana, a me ke ʻano o ka mea electrode ponoʻī.

ʻO ka mana electrode maʻamau, a i ʻole E°, he ana ia o ka hiki electrode o kahi electrode i hāʻawi ʻia i ka wā e hoʻopili ai me kahi hopena ma nā kūlana maʻamau. Hōʻike ʻia nā kūlana maʻamau e like me ka mahana o 25 ° C, kahi kaomi o 1 atm, a me ka neʻe ʻana o 1 M no nā ion āpau i ka hopena.

Hoʻohana ʻia ka mana electrode maʻamau me ka hoʻohana ʻana i ka electrode reference, ʻo ia ka electrode me kahi ʻike ʻike a paʻa. ʻO ka electrode kuhikuhi i hoʻohana pinepine ʻia ʻo ia ka electrode hydrogen maʻamau (SHE).

ʻO ke kūlana electrode maʻamau ke ana o ka manaʻo o kahi electrode i hāʻawi ʻia e loaʻa a nalowale paha i nā electrons. Hōʻike ka waiwai E° maikaʻi i ka loaʻa ʻana o ka electrode e loaʻa i nā electrons, aʻo ka waiwai E ° maikaʻi ʻole e hōʻike ana i ka electrode e nalowale i nā electrons.

ʻO ka mana electrode maʻamau he mea nui i ka electrochemistry, no ka mea hiki ke hoʻohana ʻia e wānana i ke kuhikuhi o kahi hopena redox a me ka helu ʻana i ka hoʻololi ʻana o ka ikehu manuahi ʻo Gibbs no kahi pane.

Electrode hiki o ke keleawe

ʻO ka mana electrode o ke keleawe he ana ia o ka manaʻo o ke keleawe e loaʻa a nalowale paha i nā electrons ke hoʻopili ʻia me kahi hopena. ʻO ka mana electrode maʻamau o ke keleawe he +0.34 V, e hōʻike ana i ke keleawe e loaʻa i nā electrons.

ʻO ka Hoʻopili ʻia ka mana electrode o ke keleawe e nā kumu he nui, e like me ka ʻike ʻana o nā ion keleawe i ka hopena, ka mahana, a me ke ʻano o ka hopena ponoʻī.

Hoʻohana pinepine ʻia ka mana electrode o ke keleawe i nā pūnaewele electrochemical, e like me nā pā a me nā wahie. I loko o kēia mau pūnaewele, hana ke keleawe ma ke ʻano he cathode, kahi e loaʻa ai nā electrons a hoʻemi ʻia.

He mea koʻikoʻi nō hoʻi ka hiki electrode o ke keleawe i ke kemika corrosion. ʻO ke keleawe he metala paʻa paʻa, akā hiki ke ʻino i ka wā e hoʻopili ai me kekahi mau haʻina, e like me ka wai paʻakai. ʻO ka ʻino o ke keleawe he kaʻina hana electrochemical, kahi e nalowale ai ke keleawe i nā electrons a ua oxidized.

Hiki ke ana ʻia ka mana electrode o ke keleawe me ka hoʻohana ʻana i ka potentiostat, ʻo ia ka mea hiki ke hoʻomalu a ana i ka hiki o kahi electrode i ka hopena. Hoʻopili ʻia ka potentiostat i kahi electrode kuhikuhi, ʻo ia ka electrode me kahi ʻike ʻike a paʻa.

Hiki ke ana 'ia ka mana electrode o ke keleawe me ka voltmeter. Ma kēiaʻano, hoʻokomoʻia kahi electrode keleawe i loko o ka hopena o ke keleawe sulfate a hoʻohuiʻia i kahi voltmeter. Ana ka voltmeter i ka hiki o ka electrode keleawe e pili ana i ka electrode hydrogen maʻamau.

Electrode hiki o ka copper oxide

ʻO ka mana electrode o ka copper oxide he ana ia o ka manaʻo o ka copper oxide e loaʻa a nalowale paha i nā electrons ke hoʻopili ʻia me kahi hopena. ʻO ka mana electrode maʻamau o ka copper oxide he +0.34 V, e hōʻike ana i ka loaʻa ʻana o nā electrons.

Hoʻopili ʻia ka mana electrode o ka copper oxide e kekahi mau mea, e komo pū me ka ʻike ʻana o nā ion keleawe i ka hopena, ka mahana, a me ke ʻano o ka hopena ponoʻī.

Hoʻohana pinepine ʻia ka mana electrode o ka copper oxide i loko o nā cell electrochemical, e like me nā ʻeke a me nā wahie. I loko o kēia mau pūnaewele, hana ka copper oxide ma ke ʻano he cathode, kahi e loaʻa ai nā electrons a hoʻemi ʻia.

He mea koʻikoʻi nō hoʻi ka hiki electrode o ka copper oxide i ke kemika corrosion. He mea paʻa paʻa ka copper oxide, akā hiki ke ʻino i ka wā e hoʻopili ai me kekahi mau haʻina, e like me ka wai paʻakai. ʻO ka ʻinoʻino o ka copper oxide he kaʻina electrochemical, kahi e nalowale ai ke keleawe oxide i nā electrons a hoʻoheheʻe ʻia.

Hiki ke ana ʻia ka mana electrode o ka copper oxide me ka hoʻohana ʻana i ka potentiostat, ʻo ia ka mea hiki ke hoʻomalu a ana i ka hiki o kahi electrode i ka hopena. Hoʻopili ʻia ka potentiostat i kahi electrode kuhikuhi, ʻo ia ka electrode me kahi ʻike ʻike a paʻa.

Hiki ke ana 'ia ka mana electrode o ka copper oxide me ka voltmeter. Ma kēia ʻano, hoʻokomo ʻia kahi electrode copper oxide i loko o kahi hopena o ke keleawe sulfate a hoʻopili ʻia i kahi voltmeter. ʻO ka voltmeter e ana i ka hiki o ka electrode copper oxide e pili ana i ka electrode hydrogen maʻamau.

Ka hopena

ʻO ka ʻO ka mana electrode o ke keleawe he ana ia o ka manaʻo o ke keleawe e loaʻa a nalowale paha i nā electrons ke hoʻopili ʻia me kahi hopena. ʻO ka mana electrode maʻamau o ke keleawe he +0.34 V, e hōʻike ana i ke keleawe e loaʻa i nā electrons.

Hoʻopili ʻia ka mana electrode o ke keleawe e nā kumu he nui, e komo pū me ka ʻike ʻana o nā ion keleawe i ka hopena, ka mahana, a me ke ʻano o ka hopena ponoʻī.

ʻO ka mana electrode o ke keleawe he mea koʻikoʻi i ka electrochemistry, no ka mea hiki ke hoʻohana ʻia e wānana i ke kuhikuhi o ka hopena redox a me ka helu ʻana i ka hoʻololi ʻana o ka ikehu manuahi ʻo Gibbs no kahi pane.