四氨基钴酞菁（TaPcCo-MWCNTs）共价修饰MWCNTLi-S氧化还原催化剂

关键词：锂硫电池，共价修饰，四氨基酞菁钴，多壁碳纳米管

开发了一种**的Li-S氧化还原催化剂，该催化剂由被四氨基钴酞菁（TaPcCo-MWCNTs）共价修饰的MWCNT组成。**的多硫化锂（LiPS）捕获是通过含N的硫亲硫酞菁环和耐Co中心硫原子实现的。这种吸附几何结构利用了Co未被占据的d轨道作为电子超交换高速公路。电化学测量和密度泛函理论计算揭示了LiPSs在液相中的动力学反应以及液固转变。Li 2的均匀沉积还观察到了S膜，该膜在电池循环过程中保留了阴极完整性和硫的利用率。快速的电子和锂离子通过导电的MWCNT骨架和TaPcCo上的亲硫取代基氨基快速往返于反应位点，也大大促进了催化的硫氧化还原。通过在阴极涂层中添加6 wt％的TaPcCo-MWCNT，可以实现高达7 mg cm -2的面积硫负载量，从而实现高硫利用率。在1 C下在5 mg cm -2的硫负载下实现了稳定的长期循环，初始面积容量为4.4 mAh cm -2，保留的3.5 mAh cm -2500个周期后。考虑到酞菁大分子的高结构多样性，本研究为新型Li-S催化剂提供了机会。

 

锂硫电池是一种新体系二次电池，因其高比能量、环境友好等特点，引起了人们**的关注。然而锂硫电池的发展仍面临较大的技术挑战。含硫活性物质的导电性较差，充放电过程中的反应速率较慢，正极的硫的利用率不足。此外，正极在充放电过程中产生可溶性的多硫化锂，其在正负极之间的“穿梭效应”导致电池库伦效率和循环稳定性的降低。

通过化学修饰的方法将导电的碳纳米管与金属酞菁类配合物以化学键合的方式结合，获得的锂硫正极催化材料**提高了锂硫电池在高单位面积载硫量条件下的比容量、倍率性能和循环稳定性。

金属酞菁是拥有18π电子结构的金属-N4大环共轭体系，具有**的催化性能。中心金属原子不完全占用的dz轨道为导电碳材料和多硫化物之间的电子交换提供了通道，酞菁配合物及其外围取代基包含丰富的极性基团，在催化多硫化物转化的同时可发挥较强的吸附作用。该研究团队将四氨基酞菁钴与多壁碳纳米管通过肿胺（C-NH-C）共价连接，形成了4-6nm的外围修饰层。该结构保持了多壁碳纳米管的高导电性，表面均匀分布的四氨基酞菁钴提供了丰富的亲硫活性位点（Co）和亲锂活性位点（N）。在Co-N4和外围取代基氨基（-NH2）的协同作用下，材料可以**地吸附多硫化物并**提高其液相和液-固转化过程的反应速率，**多硫化锂的“穿梭效应”，促进放电产物Li2S的均匀形核与生长。即使在高单位面积载硫量（7mg·cm-2）以及较大倍率下（4C），正极也能保持较好的容量和循环稳定性，电池的性能得到了**的提高。

齐岳供应产品：

产品名称	别名	英文名称	cas
酞菁二锂		Phthalocyanine Dilithium	25510-41-2
5,10,15,20-四苯基-21H,23H-卟啉锌(II) 锌(II)TPP	四苯基卟啉锌(II)	5,10,15,20-Tetraphenyl-21H,23H-porphine Zinc(II) Zinc(II) TPP	14074-80-7
2,3,7,8,12,13,17,18-八乙基卟啉	2,3,7,8,12,13,17,18-八乙基-21H,23H-卟吩	2,3,7,8,12,13,17,18-Octaethylporphyrin	2683-82-1
二氯酞菁锡(IV)	酞菁二氯化锡(IV)	Tin(IV) Phthalocyanine Dichloride	18253-54-8
酞菁二钠		Disodium Phthalocyanine	25476-27-1
5,10,15,20-四(2,4,6-三甲苯基)卟啉	5,10,15,20-四(2,4,6-三甲苯基) -21H,23H-卟吩	5,10,15,20-Tetrakis(2,4,6-trimethylphenyl)porphyrin	56396-12-4
5,9,14,18,23,27,32,36-八丁氧基-2,3-萘酞菁铜(II) 铜(II)-5,9,14,18,23,27,32,36-八丁氧基-2,3-萘酞菁	5,9,14,18,23,27,32,36-Octabutoxy-2,3-naphthalocyanine Copper(II)	Copper(II) 5,9,14,18,23,27,32,36-Octabutoxy-2,3-naphthalocyanine	155773-67-4
四苯基卟啉氯化铁(III)	5,10,15,20-四苯基-21H,23H-卟啉氯化铁(III) 5,10,15,20-Tetraphenyl-21H,23H-porphine Iron(III) Chloride	Iron(III) Tetraphenylporphyrin Chloride	16456-81-8
酞菁铁(II) (升华提纯)	Phthalocyanine Iron(II) (purified by sublimation)	Iron(II) Phthalocyanine (purified by sublimation)	132-16-1
[5-[双(4-己基苯基)氨基]-15-[2-(4-羧基苯基)乙炔基]-10,20-双(3,5-二-叔丁基苯基)卟啉]合锌(II)	YD2	[5-[Bis(4-hexylphenyl)amino]-15-[2-(4-carboxyphenyl)ethynyl]-10,20-bis(3,5-di-tert-butylphenyl)porphyrinato]zinc(II)	1201915-91-4
酞菁锡(II)	Phthalocyanine Tin(II)	Tin(II) Phthalocyanine	15304-57-1
酞菁镁(II)	Phthalocyanine Magnesium(II)	Magnesium(II) Phthalocyanine	1661-03-6
5,10,15,20-四(2,6-二氯苯基)卟吩	5,10,15,20-四(2,6-二氯苯基)卟啉	5,10,15,20-Tetrakis(2,6-dichlorophenyl)porphyrin	37083-37-7
2,3,7,8,12,13,17,18-八氟-5 ,10,15,20-四(五氟苯基)卟啉	全氟-5,10,15,20-四苯基-21H,23H-卟啉	2,3,7,8,12,13,17,18-Octafluoro-5,10,15,20-tetrakis(pentafluorophenyl)porphyrin	121399-88-0
酞氰化锌 (升华提纯)	酞菁锌	Zinc Phthalocyanine (purified by sublimation)	14320-04-8
5,15-二苯基卟啉	5,15-二苯基-21H,23H-卟吩	5,15-Diphenylporphyrin	22112-89-6
酞菁铅(II)	Phthalocyanine Lead(II)	Lead(II) Phthalocyanine	15187-16-3
酞菁钴(II) (升华提纯)		Cobalt(II) Phthalocyanine (purified by sublimation)	3317-67-7
2,3,9,10,16,17,23,24-八氟酞菁铜(II) (升华纯化)	2,3,9,10,16,17,23,24-Octafluorophthalocyanine Copper(II) (purified by sublimation) F8CuPc (purified by sublimation)	Copper(II) 2,3,9,10,16,17,23,24-Octafluorophthalocyanine (purified by sublimation)	148651-60-9
2,9,16,23-四叔丁基酞菁铜(II)	4,4',4',4'-四叔丁基酞菁铜	Copper(II) 2,9,16,23-Tetra-tert-butylphthalocyanine	39001-64-4
四苯基卟啉钴(II)	5,10,15,20-四苯基-21H,23H-卟吩钴(II) TPP钴(II)	Cobalt(II) Tetraphenylporphyrin	14172-90-8
四苯基卟啉铜(II)	5,10,15,20-四苯基-21H,23H-卟啉铜(II) 铜(II)TPP	Copper(II) Tetraphenylporphyrin	14172-91-9
酞菁氯化铝	铝酞菁	Phthalocyanine Chloroaluminum	14154-42-8
1,2,3,4,8,9,10,11,15,16,17,18,22,23,24,25-十六氟酞菁铜(II) (升华提纯)	F16CuPc (purified by sublimation)	1,2,3,4,8,9,10,11,15,16,17,18,22,23,24,25-Hexadecafluorophthalocyanine Copper(II) (purified by sublimation)	14916-87-1
酞菁蓝	酞菁铜(II),90%（β型）	Phthalocyanine Blue	147-14-8
颜料蓝16 (升华提纯)	Pigment Blue 16 (purified by sublimation)	Phthalocyanine (purified by sublimation)	574-93-6
5,10,15,20-四(4-羧基甲氧苯基)-卟啉	5,10,15,20-四(4-羧基甲氧苯基)-21H,23H-卟吩	5,10,15,20-Tetrakis(4-carboxymethyloxyphenyl)porphyrin	127812-08-2
5,10,15,20-四(对甲苯基)卟啉	5,10,15,20-四(4-甲苯基)卟啉	5,10,15,20-Tetrakis(p-tolyl)porphyrin	14527-51-6
5,10,15,20-四(4-羟苯基)卟啉	5,10,15,20-四(4-羟苯基)-21H,23H-卟吩	5,10,15,20-Tetrakis(4-hydroxyphenyl)porphyrin	51094-17-8
5,10,15,20-四(3,5-二甲氧苯基)卟啉	5,10,15,20-四(3,5-二甲氧苯基)-21H,23H-卟吩	5,10,15,20-Tetrakis(3,5-dimethoxyphenyl)porphyrin	74684-34-7
内消旋-四苯基卟吩		meso-Tetraphenylchlorin	2669-65-0
meso-四(4-羧基苯基)卟吩四甲酯	5,10,15,20-四(4-甲氧羰基苯基)卟啉	5,10,15,20-Tetrakis(4-methoxycarbonylphenyl)porphyrin	22112-83-0
5,10,15,20-四(4-氨基苯基)卟啉	5,10,15,20-四(4-氨基苯基)-21H,23H-卟吩	5,10,15,20-Tetrakis(4-aminophenyl)porphyrin	22112-84-1
5-(4-羧苯基)-10,15,2-三苯基卟啉	5-(4-羧苯基)-10,15,2-三苯基-21H,23H-卟吩	5-(4-Carboxyphenyl)-10,15,20-triphenylporphyrin	95051-10-8
5,10,15,20-四(五氟苯基)卟啉	5,10,15,20-四(五氟苯基)-21H,23H-卟吩	5,10,15,20-Tetrakis(pentafluorophenyl)porphyrin	25440-14-6
5,10,5,20-四(3,5-二羟苯基)卟啉	5,10,5,20-四(3,5-二羟苯基) -21H,23H-卟吩	5,10,15,20-Tetrakis(3,5-dihydroxyphenyl)porphyrin	145764-54-1
酞菁绿G	颜料绿 7	Pigment Green 7	1328-53-6
5,15-双(苯乙炔基)-10,20-双[(三异丙基硅烷基)乙炔基]卟吩]]合镁(II)		[5,15-Bis(phenylethynyl)-10,20-bis[(triisopropylsilyl)ethynyl]porphyrinato]magnesium(II)	1397288-30-0
锡(IV) 2,3-二氯化萘酞菁	二氯(2,3-萘酞氰基)锡(IV)	Tin(IV) 2,3-Naphthalocyanine Dichloride	26857-61-4
5,10,15,20-四(4-甲氧苯基)-21H,23H-卟吩	5,10,15,20-四(4-甲氧苯基)卟啉	5,10,15,20-Tetrakis(4-methoxyphenyl)porphyrin	22112-78-3
氧钛酞菁 (升华提纯)	酞菁氧钛/氧化(酞菁)钛	Titanyl Phthalocyanine (purified by sublimation)	26201-32-1
四苯基卟吩	Tetraphenylporphine (Chlorin free) TPP (Chlorin free)	Tetraphenylporphyrin (Chlorin free)	917-23-7
5-(4-甲氧羰基苯基)-10,15,2-三苯基卟吩	5-(4-Carbomethoxyphenyl)-10,15,20-triphenylporphyrin	5-(4-Methoxycarbonylphenyl)-10,15,20-triphenylporphyrin	119730-06-2
[5,10,15,20-四(4-甲氧苯基)卟啉]合钴(II)	[5,10,15,20-四(4-甲氧苯基)-21H,23H-卟吩]合钴(II) 卟啉钴	[5,10,15,20-Tetrakis(4-methoxyphenyl)porphyrinato]cobalt(II)	28903-71-1
5,10,15,20-四(4-吡啶基)卟啉	5,10,15,20-四(4-吡啶基)-21H,23H-卟啉	5,10,15,20-Tetra(4-pyridyl)porphyrin	16834-13-2
四(4-羧苯基)卟吩	TCPP [=四(4-羧苯基)卟吩] [铜和镉用超高灵敏分光光度试剂][用于以HPLC进行的金属同时测定]	Tetrakis(4-carboxyphenyl)porphyrin	14609-54-2
5,10,15,20-四(4-磺苯基)卟啉 四苯基卟啉四磺酸	TPPS (=四苯基卟啉四磺酸水合物)	5,10,15,20-Tetrakis(4-sulfophenyl)porphyrin Tetraphenylporphyrin Tetrasulfonic Acid	35218-75-8
二氰基吡嗪类&类似物 [酞菁砌块]
2-氨基-4,5-二氰基-1H-咪唑	2-氨基-4,5-咪唑二甲腈	2-Amino-4,5-dicyano-1H-imidazole	40953-34-2
1,4,5,6-四氢-5,6-二氧-2,3-二氰基吡嗪	1,4,5,6-四氢-5,6-二氧-2,3-吡嗪二甲腈	1,4,5,6-Tetrahydro-5,6-dioxo-2,3-pyrazinedicarbonitrile	36023-64-0
5,6-二氨基-2,3-二氰基吡嗪	2,3-二氰基-5,6-二氨基吡嗪	5,6-Diamino-2,3-dicyanopyrazine	36023-58-2
2,3-二氰基-5-甲基吡嗪	5-Methyl-2,3-pyrazinedicarbonitrile	2,3-Dicyano-5-methylpyrazine	52197-12-3
吡啶-2,3-二甲腈	2,3-二氰基吡啶	Pyridine-2,3-dicarbonitrile	17132-78-4
2,3-二氰基吡嗪	吡嗪-2,3-二甲腈	2,3-Dicyanopyrazine	13481-25-9
4,5-二氰基咪唑	DCI/4,5-二氰咪唑	4,5-Dicyanoimidazole	1122-28-7
5,6-二氯-2,3-二氰基吡嗪	5,6-Dichloro-2,3-pyrazinedicarbonitrile	5,6-Dichloro-2,3-dicyanopyrazine	56413-95-7
2,3-二氰基-5-氨基-6-氯吡嗪	5-氨基-6-氯-2,3-二氰基吡嗪	5-Amino-6-chloro-2,3-dicyanopyrazine	56413-96-8
邻苯二甲腈类 [酞菁砌块]
4-硝基邻苯二甲腈	1,2-二氰基-4-硝基苯	4-Nitrophthalonitrile	31643-49-9
1,3-二亚氨基异吲哚啉		1,3-Diiminoisoindoline	57500-34-2
4-碘酞腈	1,2-二氰基-4-碘苯	4-Iodophthalonitrile	69518-17-8
3-硝基邻苯二甲腈	1,2-二氰基-3-硝基苯	3-Nitrophthalonitrile	51762-67-5
4-(4-α-异丙苯基苯氧基)苯二甲腈	2-[4-(3,4-Dicyanophenoxy)phenyl]-2-phenylpropane	4-(4-α-Cumylphenoxy)phthalonitrile	83482-57-9
4-戊氧基苯二甲腈	4-戊氧基邻苯二甲腈	4-Pentyloxyphthalonitrile	106943-83-3
4-溴邻苯二甲腈	4-溴-1,2-二氰基苯	4-Bromophthalonitrile	70484-01-4
4-正丁氧基-1,2-二氰苯	4-丁氧基邻苯二甲腈	4-Butoxyphthalonitrile	81560-32-9
4-己氧基苯二甲腈	1,2-Dicyano-4-hexyloxybenzene	4-Hexyloxyphthalonitrile	104949-82-8
4-丙氧基邻苯二甲腈	4-丙氧基苯二甲腈	4-Propoxyphthalonitrile	106144-18-7
4-氨基邻苯二甲腈	3,4-二氰基苯胺	4-Aminophthalonitrile	56765-79-8
1,2-二氰基-4-氟苯	4-氟邻苯二腈	4-Fluorophthalonitrile	65610-14-2
4,5-二氟酞腈	1,2-二氰基-4,5-二氟苯	4,5-Difluorophthalonitrile	134450-56-9
4,5-二氨基酞腈	1,2-二氨基-4,5-二氰基苯	4,5-Diaminophthalonitrile	129365-93-1
4-(2',6'-二甲基苯氧基)邻苯二甲腈	1,2-二氰基-4-(2',6'-二甲基苯氧基)苯	4-(2',6'-Dimethylphenoxy)phthalonitrile	221302-75-6
4,5-二氯邻苯二甲腈	1,2-二氯-4,5-二氰基苯	4,5-Dichlorophthalonitrile	139152-08-2
邻苯二甲腈	1,2-二氰基苯	Phthalonitrile	91-15-6
全氯邻苯二甲腈	四氯邻苯二甲腈	Tetrachlorophthalonitrile	1953-99-7
4-叔丁基邻苯二甲腈	4-叔丁基-1,2-二氰基苯	4-tert-Butylphthalonitrile	32703-80-3
四氟邻苯二甲腈	3,4,5,6-四氟邻苯二甲腈	Tetrafluorophthalonitrile	1835-65-0
4-羟基邻苯二甲腈	3,4-二氰基苯酚	4-Hydroxyphthalonitrile	30757-50-7
1,2-Dicyano-4-dodecyloxybenzene	4-十二烷氧基邻苯二甲腈	4-Dodecyloxyphthalonitrile	161082-75-3
1,2,4,5-四氰基苯	1,2,4,5-苯四甲腈	1,2,4,5-Tetracyanobenzene	712-74-3
2,3-二氰基对苯二酚	3,6-二羟基邻苯二甲腈 2,3-二氰基羟基醌 3,6-二羟基邻苯二腈 3,6-二羟基邻苯二甲氰 2,3-二氰基氢醌	2,3-Dicyanohydroquinone	4733-50-0
萘二甲腈类 [酞菁砌块]
1,2-萘二甲腈	1,2-二氰基萘	1,2-Naphthalenedicarbonitrile	19291-76-0
1,3-二亚氨基苯并[f]异吲哚啉		1,3-Diiminobenz[f]isoindoline	65558-69-2
2,3-二氰基-6-硝基萘		2,3-Dicyano-6-nitronaphthalene	184026-06-0
2,3-二溴-6,7-二氰基萘	6,7-Dibromonaphthalene-2,3-dicarbonitrile	2,3-Dibromo-6,7-dicyanonaphthalene	74815-81-9
2,3-二氰基-1,4-二羟基-5-硝基萘	2,3-二氰基-5-硝基-1,4-萘二醇	2,3-Dicyano-1,4-dihydroxy-5-nitronaphthalene	4655-62-3
6-溴-2,3-二氰基萘	6-溴萘-2,3-二甲腈	6-Bromo-2,3-dicyanonaphthalene	70484-02-5
2,3-二氰基萘	2,3-萘二甲腈	2,3-Dicyanonaphthalene	22856-30-0

小编：wyf  11.13