Unique electronic structure of Tri-μ-oxido-[bis(porphyrinato)niobium(V)]: Spontaneous symmetry breaking mechanism of the special coordination skeleton

Qi, Dongdong; Chen, Xin; Jiang, Jianzhuang

doi:10.1016/j.comptc.2020.112832

Cited by 3 publications

(1 citation statement)

References 40 publications

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“…13 的平均双层电容(Cdl)分别为 2.15 mF/cm 2 、2.3 mF/cm 2 、2.45 mF/cm 2 、2.05 mF/cm 2 和 2.10 mF/cm 2 。因为 Cdl 正比于 ECSA，因此可以确定不同 pH 条件下， 311+G(d,p)水平上进行了密度泛函理论 (DFT) 计算 [33][34][35][36]42,43] 。基于 Politzer 等人的假设 [44][45][46][47][48]…”

Section: 电化学性能unclassified

The pH-dependent catalytic activity of the oxygen reduction reaction of iron hexadecafluorophthalocyanine

Yu¹,

Zhan²,

Jin³

et al. 2022

Sci. Sin.-Chim

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摘要酞菁铁(FePc)是一种很有应用潜力的氧还原反应(ORR)非贵金属催化剂。FePc 基催化材料的 ORR [2] 。为了解决此类问题，迫切需要开发经济高效的催化剂。因此，人们开始尝试用价格相对低廉的非贵金属催化剂(NPMCs) [3] 来替代 Pt 系催化剂。在已报道的 NPMCs 中，M-N4 大环配合物由于具有较高的氧还原活性，成为了备选的良好的 ORR 催化剂 [4][5][6] 。金属卟啉(MPor)和金属酞菁(MPc) [7] 是典型的 M-N4 大环配合物。其中，酞菁铁(FePc) 分子催化剂因其独特的 Fe-N4 活性位点和 ORR 过程中较低的反应能垒 [8][9][10][11] ，而被认为是取代 Pt 基材料的候选催化剂 [12,13] 。不过，FePc 较差的电子导电性使其在 ORR 过程中电子传递困难。为解决这一问题，通常将 FePc 复合在石墨烯 [14,15] 、碳纳米管 [16,17] 和纳米纤维 [18] 等碳材料上，以促进电荷转移 [11,19] 。为进一步提高 FePc 的催化活性，可对 FePc 骨架进行化学修饰，比如，将 FePc 修饰上吸电子基团 F [20] ，利用吸电子基团对中心金属离子的氧化还原电位的影响，可以获得电催化活性和耐久性与商业 Pt/C 相当甚至更好的催化剂 [19,[21][22][23][24][25] 。通常，FePc 基复合材料在碱性介质中的 ORR 活性能与 Pt 基催化剂竞争，而在酸性条件下 ORR 活性和稳定性要显著降低 [26][27][28][29][30][31] ，这些结果表明电解液的 pH 值对 FePc 基催化剂的 ORR 催化性

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Section: 电化学性能unclassified

The pH-dependent catalytic activity of the oxygen reduction reaction of iron hexadecafluorophthalocyanine

Yu¹,

Zhan²,

Jin³

et al. 2022

Sci. Sin.-Chim

Self Cite

View full text Add to dashboard Cite

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Atomic alkali metal anchoring on graphdiyne as single-atom catalysts for capture and conversion of CO2 to HCOOH

Feng

Hai

et al. 2020

Molecular Catalysis

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Combined experimental and theoretical studies on a phenyl thiadiazole-based novel turn-on fluorescent colorimetric Schiff base chemosensor for the selective and sensitive detection of Al³⁺

2020

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Unique electronic structure of Tri-μ-oxido-[bis(porphyrinato)niobium(V)]: Spontaneous symmetry breaking mechanism of the special coordination skeleton

Cited by 3 publications

References 40 publications

The pH-dependent catalytic activity of the oxygen reduction reaction of iron hexadecafluorophthalocyanine

The pH-dependent catalytic activity of the oxygen reduction reaction of iron hexadecafluorophthalocyanine

Atomic alkali metal anchoring on graphdiyne as single-atom catalysts for capture and conversion of CO2 to HCOOH

Combined experimental and theoretical studies on a phenyl thiadiazole-based novel turn-on fluorescent colorimetric Schiff base chemosensor for the selective and sensitive detection of Al³⁺

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Unique electronic structure of Tri-μ-oxido-[bis(porphyrinato)niobium(V)]: Spontaneous symmetry breaking mechanism of the special coordination skeleton

Cited by 3 publications

References 40 publications

The pH-dependent catalytic activity of the oxygen reduction reaction of iron hexadecafluorophthalocyanine

The pH-dependent catalytic activity of the oxygen reduction reaction of iron hexadecafluorophthalocyanine

Atomic alkali metal anchoring on graphdiyne as single-atom catalysts for capture and conversion of CO2 to HCOOH

Combined experimental and theoretical studies on a phenyl thiadiazole-based novel turn-on fluorescent colorimetric Schiff base chemosensor for the selective and sensitive detection of Al3+

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Product

Resources

About

Combined experimental and theoretical studies on a phenyl thiadiazole-based novel turn-on fluorescent colorimetric Schiff base chemosensor for the selective and sensitive detection of Al³⁺