锌空电池003
[1] A dual-template strategy to engineer hierarchically porous Fe-N-C electrocatalysts for the high-performance cathodes of Zn-air batteries dagger,(12.732),10.1039/d1ta00585e
内容:本文采用MgO和ZnCl2软模板法制备Fe–N–HPC,其多空结构和Fe–Nx 活性位点提高了活性位点和传质过程,促进了ORR反应。锌空电池在碱性环境中展现1.48V的开路电压,952.8 W h kgZn−1的能量密度。在10 mA cm−2 稳定循环140 h。
全固态锌空电池的制备:5 g polyvinyl alcohol (PVA)+ 45 mL H2O ( stirring)+ 5 mL KOH solution (1 g mL−1) (stirring for 40 min at 95 °C)
过氧化氢产量计算(ID 和IR是圆盘和圆环的电流, N是 Pt 环的回收效率 (37%)):

[2] Optimizing the Spin States of Mesoporous Co3O4 Nanorods through Vanadium Doping for Long-Lasting and Flexible Rechargeable Zn-Air Batteries, (13.084),10.1021/acscatal.1c01585
内容:通过V掺杂Co3O4使Co3+轨道从Oh位 提高到 eg 空位(≈1.010),促进ORR/OER反应。在10 mA cm−2 稳定循环140 h。(XPS,)
通过计算得到磁性和轨道的关系,(仪器电子顺磁共振波普仪ESR)
eg occupancy of Co3+的计算公式:x=SHS∙VHS+SLS∙VLS= 2VHS.
μeff2 = g2 J(J + 1)μB 2; μeff=gμB(SHS∙(SHS+1)VHS+SLS(SLS+1)∙VLS)(-1/2)
(SHS=2,SLS=0,VHS和VLS=1-VHS由μeff计算得到)
[3] The dual-nitrogen-source strategy to modulate a bifunctional hybrid Co/Co-N-C catalyst in the reversible air cathode for Zn-air batteries, (9.127),10.1016/j.jpowsour.2020.229339
内容:(双氮 )邻二氮菲热解合成Co/Co–N–C。在2 mA cm−2 稳定循环167 h。
[4] Rational design of hierarchically porous Fe-N-doped carbon as efficient electrocatalyst for oxygen reduction reaction and Zn-air batteries, NANO RESEARCH (8.897), 10.1007/s12274-021-3422-z
内容:以Zn为软模板,热解合成由微、中、大孔结构组成不同FeNC-x材料,同时其Fe含量不同。FeNC-0.04以中大孔结构,移动的铁含量(0.04)增加活性位点,提高电荷传输,促进ORR反应。
[5] Pt/CoFe2O4-C hollow ball as efficient bifunctional electrocatalyst for Zn-air batteries, CATALYSIS TODAY (6.766), 10.1016/j.cattod.2020.04.015
内容:冷冻干燥合成 Pt/CoFe2O4-C。在30 mA cm−2 稳定循环12 h。
[6] FeS2-CoS2 incorporated into nitrogen-doped carbon nanofibers to boost oxygen electrocatalysis for durable rechargeable Zn-air batteries, JOURNAL OF POWER SOURCES, 10.1016/j.jpowsour.2020.228955
内容:通过静电纺丝,高温煅烧,硫化合成FeS2–CoS2/NCFs 催化剂。在10 mA cm−2 稳定循环250 h。