Page 15 - 《精细化工》2023年第4期

す 4 ᱌ 㟼 ᐧ喑ぶ: ➦₷㐀ᲱȠ倅⽠Ⴧᕔ⩢㼐⊤Ⅱ OER יࡃݯ⮱ⵁ⾣䔈ᆂ g701g

aÿ̶ᬻ⇨㏠ㆠ㐀Ჱ NiCoN|Ni xP|NiCoN ⮱व᜽⹧ᘼఫ喠b~dÿNiCoN|Ni xP|NiCoN ౕ๖♣⊤Ⅱ͚⮱ HER Ხࡃᰟ㏬喑⩢≮ჳᏓͧ 10 mA/cm 2
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ᬣᄦᏁ⮱䓴⩢߬喑Вౕࣷ 10 mA/cm ᕿ⩢≮ჳᏓ̸⮱䃎ᬣ⩢߬ᰟ㏬
ఫ 4 ̶ᬻ⇨㏠ㆠ㐀Ჱ NiCoN|Ni x P|NiCoN ⮱ݣิ⹧ᘼఫȠ㐀Ჱࣷ⩢ࡃ႓ᕔ㘪 [38]
Fig. 4 Schematic diagram of preparation, structure and electrochemical properties of sandwich nanostructure NiCoN|Ni x P|NiCoN [38]

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3.2 Ԋ៑ᅯ㐀Ჱ ើݣ Cl ព᪐⮱हᬣ喑Όчើݣ OH ा⊤Ⅱ⮱ព᪐喑
⩢㼐⊤Ⅱ͚⮱䔶᠖ᕔহ⽠Ⴧᕔ䬛䷅䘪᭜⩞⊤Ⅱ 䔆чᄩ㜡 OER ᕔ㘪䭺ѻȡOBATA ぶ [42] 䕇䓴ౕ䭠Ხ
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͚⮱ Cl ᑂ䊤⮱喑Cl ̺ϲౕ䭠Ხ̷ᑂࣾ》ζࣺᏁ喑 㶕䲏↶⼜ CeO x ᫦∂喑ݣิγڤᰶ CeO x ᅼ䯉⮱
㔹́чᄩ㜡יࡃݯ㶕䲏⮱㙽㮭ȡౕיࡃݯ㶕䲏䉸ε NiFeO x יࡃݯȡ㐀᳉㶕ᬻ喑ౕ 1 mol/L KOH ͚ CeO x
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Cl 䭨ᡎᅯ᭜㼐̷۠䔝䬛䷅Ⱑᣒ㔹ᰶ᩵⮱᫦∂ȡ䩝ധ Ԋ៑⮱ NiFeO x 喍CeO x /NiFeO x )㶕⣝ܧхᐯ⮱ OER ⽠
יࡃݯ఍᜽᱙ѻȠ㔽㙽㮭ᕔສ喑ᬖౕ 20 ̓㏗ 80 Ꭱ Ⴧᕔ喑ౕ 96 h ڲ̺ч䭺㼐喍ఫ 5c喎ȡ♣㔹喑̻̺क़
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А喑ጟ҉̭ͧ⻺䭨₏ Cl ⮱Ԋ៑ᅯ㷘ⵁ⾣ [39] ȡౕ⩢㼐 CeO x ⮱ᵤ৮Ⱕ℁喑࠲㺳 CeO x ⮱ NiFeO x ⮱ OER ≨
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䓴⼸͚יࡃݯ㶕䲏⩌᜽⮱ MnO x ↶⼜➖ᅯ㮪ᬍיࡃ ᕔ䭺ѻ喑䔆ᘼঠⱭ CeO x чᒞ৺Ⅱহ OH ⮱ព᪐喍ఫ
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≨ᕔ喑ѳ䊤ݝγ Cl ព᪐ᅼ䯉⮱҉⩕喑ϻ㔹䭟₏ Cl – 5d喎喑ౕक़ᰶ Cl ⮱⩢㼐⋟͚В 20 mA/cm ⮱ᕿჇ⩢
̻יࡃݯ≨ᕔѺᣒ㼓㔹ࣾ⩌ࣺᏁ喠हᬣ喑䄒ᅯ㘪์ ≮ჳᏓ䔈㵹≸䄂ᬣ喑CeO x /NiFeO x ౕ 96 h ऻ㶕⣝ܧ
ҬⅡȠ䉕ၽহ O 2 ౕיࡃݯহ⩢㼐䉕͸䬡э䓀喑ϻ㔹 15 mV ⮱䓴⩢Ѻ喑ᬻ᭫ᄼλ NiFeO x ⮱ 60 mVȡຯఫ
᣽倅 OER 䔶᠖ᕔ [39-40] ȡ♣㔹喑MnO x Ԋ៑ᅯㆨיࡃ 5b ᝭⹧喑ౕⷞᕔ⣜ධ͚ CeO x ⊯ᅯ᣽倅⽠Ⴧᕔ࣌఍
ݯ⮱≨ᕔ䔭ࡃ᭜̭䬛䷅喑⩞ₑϔ⩌⩢㼐䉕ព᪐㑀ᚏ喑 ᭜ CeO x Ԋ៑ᅯ̺ϲ㘪์䯁䭨⅔ࡃ䔅࣌➖⻺ Cl ⮱ព
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䭽ݣγ⩢㢤/䉕䛼э䓀ȡ఍ₑ喑ౕ⩢㼐⊤Ⅱיࡃݯ⮱ ᪐喑ᰡ䛺㺮⮱᭜ើݣיࡃݯ͚⏣㼐̸Გ⮱ Fe ➖⻺ा
䃫䃎̷喑ݖ⩕䲆⩢᫒߈ᝃ䔶᠖ᕔ⍄䔼Ҭڤᰶ⅔ࡃ㘪 ⩢㼐䉕⮱ព᪐喑ϻ㔹ౕ䭠ᲮᲮࡃ䓴⼸͚Ԋ៑ NiFeO x
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߈হ㙽㮭҉⩕⮱ Cl 䔉⻨יࡃݯ⮱㶕䲏喑Ԋ䃮יࡃݯ ⮱≨ᕔѺ◦⮱๞≨ȡहᬣ喑๔็᪝Ⅱহ OH 㘪์䕇
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⮱䔶᠖ᕔহ㞜ສ⮱⽠Ⴧᕔ喠䕇䓴ᑂڒ⾧ѺҬיࡃݯ 䓴 CeO x ᅯព᪐喑఍ₑיࡃᕔ㘪ч⪒ᰶ̸䭺ȡթᓄ∕
≨ᕔ෋ᑧ喑Вߍᔘ⩢㢤/䉕䛼э䓀䕌⢴ȡ䕇䓴䃫䃎Ԋ ᘼ⮱᭜喑⩞λⷞᕔ๖♣⊤Ⅱ͚ႅౕ̺⏣ᕔధҀ喑఍
៑ᅯᲒ᣽倅ᱽ᫆⮱ោ㙽㮭㘪߈᭜䄒䶳ഌⵁ⾣⮱䛺◦ ₑ喑ౕⷞᕔ๖♣⊤Ⅱ͚ CeO x ᅯज㘪ч䲏͡↎ᴀ䬛
᫦ाȡ ䷅喑㷘↎ᴀ⮱ CeO x Ԋ៑ᅯч䭨ⶺϔ⩌⮱⅁Ҁ䓲䕌ϻ
BALAJI ぶ [41] ౕ IrO 2 /Ti ⩢Ხ㶕䲏⊯㺳䔶᠖ᕔ䭠 ⩢Ხ͚䛷ᩫܧᲒ喑ϻ㔹ч䭺ѻיࡃݯ⮱≨ᕔহ⽠Ⴧᕔȡ
⻨ၽ Nafion 㛉হ Nafion ⏣⋟ݣิγיࡃݯ喑ܳݘ䃝 ݺ䲏䃕䃧⮱Ԋ៑ᅯ䘪ग᭜҉ͧ䭨ᡎ㙽㮭ᕔ Cl –
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ͧ NM/IrO 2 /Ti হ NS/IrO 2 /Ti喑ݖ⩕ Cl হ Nafion ͸ ाיࡃ≨ᕔⰥព᪐⮱ᅼ䯉喑ᐭࣾहᬣڤᰶיࡃ≨ᕔহ
䬡⮱䲆⩢ᢿ᫒Გើݣ䭠Ხ⁎⅜䚥⯽⮱ᒏ᜽ȡ䄒יࡃ ⍄䔼䔶᠖ᕔ⮱Ԋ៑ᅯजВ᣽倅יࡃݯ⮱⽠ჇᕔȠ䔶᠖
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ݯౕक़ Cl ⮱⏣⋟喍0.5 mol/L NaCl喑pH=8.3喎͚ OER ᕔহ≨ᕔȡKUANG ぶ [23] 䃫䃎⮱⅏⅔ࡃ䩺-䧮喍NiFe喎
䔶᠖ᕔᣒ䓾 100%喑̻ᬍ Nafion ⮱ IrO 2 /Ti Ⱕ℁喑OER ⩢יࡃݯᅯ౴࠭⊯㺳ౕ็ႁ∎⇘䩺喍NiFe/NiS x -Ni
䔶᠖ᕔ᭫㦄᣽倅喍ఫ 5a喎ȡ♣㔹喑䔆⻺⊯ᅯ̺䔯⩕ foam喎̷ᒏ᜽⩞⶘ࡃ䩺喍NiS x 喎ᅯ㏱᜽⮱็ᅯ㐀Ჱ
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λⷞᕔ⊤Ⅱ⩢㼐䉕喑఍ͧ䔶᠖ᕔ䭠⻨ၽ Nafion 㛉ౕ ฺवᱽ᫆喑≨ࡃऻᓄݝ⮱ Ni יࡃݯ̷ႅౕ⶘䚥⯽