Page 179 - 《精细化工》2023年第4期

す 4 ᱌ ᱻ䉢䉑喑ぶ: VO x /AlPO 4 יࡃݯव᜽ࣷڣיࡃ㠜㓌ധࡃࣺᏁᕔ㘪 g865g

㶕 1 יࡃݯ⮱ BET 㐀᳉
Table 1 BET results of catalyst
℁㶕䲏⼜ ႁ䯆Ⱑᒱ ႁҀ⼜
יࡃݯ 2 3
/(m /g) /nm /(cm /g)
19 1.19 0.07
AlPO 4
25 1.19 0.12
14%VO x/AlPO 4
16%VO x/AlPO 4 44 1.19 0.24
42 1.15 0.21
18%VO x/AlPO 4

ͧγᣏᬻיࡃݯ㶕䲏䉌䒪䛾ᆋ⮱ФᔮࣷⰥᄦक़
䛼喑ᄦ䒪Ҁ AlPO 4 হ VO x /AlPO 4 ㈨݄יࡃݯ䔈㵹γ
XPS 㶕ᒮ喑㐀᳉ຯఫ 6 ᝭⹧ȡ⩞λ⩢ၽ⮱䒕䖀䓽ߕ aÿڕ䅞喠bÿ14%VO x/AlPO 4 ⮱ V 2p 䒕䖀喠cÿ16%VO x/AlPO 4
⮱ V 2p 䒕䖀喠dÿ18%VO x/AlPO 4 ⮱ V 2p 䒕䖀
হ㜗᫸䓽ߕࣾ⩌㕓व҉⩕ [24] 喑יࡃݯᵤ৮⮱ V 2p ఫ 6 VO x /AlPO 4 ㈨݄יࡃݯ XPS 䅞ఫ
ࡧഌࣾ⩌ܳ㷯 [25] 喑ܳݘౕ㐀व㘪 524.0 হ 517.1 eV 䭱 Fig. 6 XPS spectra of VO x /AlPO 4 series catalysts
䓾ܧ⣝ም喑ᄦᏁλ V 2p 3/2 䒕䖀 [22] ̻ V 2p 1/2 䒕䖀 [26] 喑 2+
5+
ڣ䛾ᆋͨ㺮ႅౕФᔮͧ V 喑ᄦᏁ⮱⅔ࡃ➖ज㘪В ڣज㘪⮱ࣺᏁᱧ⤳̺ͧ⽠Ⴧ⮱ VO ٵ̻ H 2 O 2
3+
ᣒ㼓⩌᜽䒰ͧ⽠Ⴧ⮱ VO 喑ں̻ H 2 O 2 ᣒ㼓ᒏ᜽
V 2 O 5 ͧͨ喑㔹ౕ㐀व㘪 516.1~517.1 eV ั⮱ም᭜⩞
5+
V 䓴⅔͚䬡➖喑䮼ऻ̻㠜⣜䔈㵹㓌ധࡃࣺᏁ [29] ȡ
4+
V 2p 1/2 ࡧഌ⮱ V ➖⻺ᑂ䊤⮱ [27] 喑ᄦᏁ⮱⅔ࡃ➖В ♣㔹喑䮼Ɑ䦿⅔ࡃ➖䉌䒪䛼⮱෋ߍ喑̺ज䖬ٺౝܧ
VO 2 ͧͨȡᢛ᪴⡛្䖀 [28] 喑䦿ധיࡃݯౕ H 2 O 2 ⣜ධ
4+
⣝䦿⮱ള⼜㔹ᄩ㜡 V क़䛼⮱䭺ѻȡϻఫ 6 जВⰸ
[8]
5+
4+
̸ V ℁ V ᰡᰶݖλ•OH ⮱⩌᜽ 喑䄡ᬻౕ㠜㓌ധ ܧ喑16%VO x /AlPO 4 ͚喑V ̻ V ⮱ም䲏⼜℁թ喍䃝
5+
4+
4+
ࡃⰡᣒݣ㠜䚇ࣺᏁ͚ V 䊤ͨ㺮҉⩕ȡ ͧ V /V 喎ᰭ๔喑䄡ᬻڣ V ⮱क़䛼ᰭ็ȡ
4+
5+
4+

㠜㓌ധࡃݣิ㠜䚇͚יࡃݯ⮱≨ᕔ̻䚥ᕔᖜᖜ
Ⱕڠȡᑧ䚥ᕔᰶज㘪ᄩ㜡יࡃݯ⮱౺൹ ๞≨ [30] 喑䔯
ᒀ⮱ᑞ䚥ᕔजҬ㠜䚇䉕ၽࡃ喑䭺ѻϔ➖㠜䚇⮱ϟ⩢
ःАࣺᏁ喑䔅ज᣽倅 H 2 O 2 ⮱⽠Ⴧᕔ喑⩌᜽ᰡ็⮱
•OH [31] ȡ⩞λ᱙ⵁ⾣͚䦿⎽ͧڤᰶ̭Ⴧ䚥ᕔ⮱⅔ࡃ
➖ V 2 O 5 喑㠒ᄳڣ౴࠭䉌䒪ݝ䒪Ҁ̷喑߬ᓲ㘪์䄰㞯
יࡃݯ⮱䚥ᕔȡͧγ㥒䕍ܧ䔯व⅔ࡃࣺᏁ⮱䚥ᕔ⣜
ධ喑ݣิγڤᰶ̭Ⴧ䚥ᕔ⮱ VO x /AlPO 4 ㈨݄יࡃݯȡ
ఫ 7 ͧ VO x /AlPO 4 ㈨݄יࡃݯ⮱ NH 3 -TPD 䅞ఫȡ

ఫ 7 AlPO 4 䒪Ҁহ VO x /AlPO 4 ㈨݄יࡃݯ⮱ NH 3 -TPD
䅞ఫ
Fig. 7 NH 3 -TPD spectra of AlPO 4 carrier and VO x /AlPO 4
series catalysts

ϻఫ 7 जВⰸܧ喑᱗䉌䒪 V 2 O 5 ⮱ AlPO 4 ⮱㙞䭱
ምܧ⣝ౕ 100~200 Ďহ 200~500 Ďั喑ܳݘᑿᆋλ
ᑞ䚥Ѻহ͚ᑧ䚥Ѻ [32] ȡᒀ䦿⅔ࡃ➖䉌䒪䛼ͧ 14%ᬣ喑
יࡃݯᵤ৮⮱㙞䭱ምܧ⣝ౕ 200~350 Ďั喑̻䒪Ҁ