From zeolite-type metal organic framework to porous nano-sheet carbon: High activity positive electrode material for bromine-based flow batteries

Wang, Chenhui; Lai, Qinzhi; Feng, Kai; Xu, Pengcheng; Li, Xianfeng; Zhang, Huamin

doi:10.1016/j.nanoen.2017.12.007

Cited by 54 publications

(40 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Additionally, the electrocatalytic activity of the plate electrodes toward redox couples is relatively low, and the plate structure of the electrodes results in a high concentration polarization, which in turn leads to the battery working at a low current density. Accordingly, the porous electrodes, and porous carbon electrodes in particular, are increasingly receiving attention on account of their high electrocatalytic activity, high stability, and wide operation potential range …”

Section: Advanced Materials For Zinc‐based Flow Batteriesmentioning

confidence: 99%

See 1 more Smart Citation

Advanced Materials for Zinc‐Based Flow Battery: Development and Challenge

et al. 2019

Self Cite

View full text Add to dashboard Cite

stability and efficiency of the electric grid to portable electronic devices as well as supplying backup power in districts with limited grid connectivity or in off-grid applications, [4][5][6][7] are an effective approach to address these issues.Among the numerous electrochemical energy storage techniques, flow batteries (FBs) are well suited for energy storage because of their perfect combination of high safety, high efficiency and flexibility. [8][9][10] A flow battery realizes the transformation of chemical energy into electric energy through the oxidation and reduction reactions of redox couples stored in electrolytes that typically circulate through the anode and cathode, which are normally separated by an ionconducting membrane. [11] Compared with other battery systems such as lithium-based batteries and lead-based batteries, the power of a flow battery is determined by the size and number of cell stacks, while the energy or capacity of the battery depends on the concentration and the volume of the redox couples in the electrolytes. [12] Hence, the power and energy or capacity of a flow battery can be designed independently, [13] allowing the power of a flow battery to range from the 100 kW to the 100 MW level and the energy of a flow battery to range from the 100 kWh to the 100 MWh level. [14] Normally, the electrolyte of a flow battery consists of an aqueous solution, which endows the technology with high safety and minimal potential risk of fire or explosion. These advantages of flow battery technologies make such devices very suitable for energy storage applications.As a representative flow battery technology, the vanadium flow battery (VFB) has long been considered as one of the most mature technologies and is currently at the commercial demonstration stage. [8,15] However, some limitations and challenges, e.g., the relatively high cost [16] and low energy density, still need to be overcome to realize its industrialization. Recently, tremendous efforts have been devoted to exploring and developing novel flow battery technologies with low costs and high energy densities, e.g., zinc-based flow batteries (ZFBs), [17][18][19][20][21] polymer-based flow batteries, [22][23][24] and quinone-based flow batteries. [25][26][27][28] These newly developed flow battery technologies have demonstrated promise for energy storage applications, although most are still in development in the lab.Zinc-based flow batteries (ZFBs) are well suitable for stationary energy storage applications because of their high energy density and low-cost advantages. Nevertheless, their wide application is still confronted with challenges, which are mainly from advanced materials. Therefore, research on advanced materials for ZFBs in terms of electrodes, membranes, and electrolytes as well as their chemistries are of the utmost importance. Herein, the focus is on the scientific understandings of the fundamental design of these advanced materials and their chemistries in relation to the battery performance. The principles of using different...

show abstract

Section: Advanced Materials For Zinc‐based Flow Batteriesmentioning

confidence: 99%

Section: Advanced Materials For Zinc‐based Flow Batteriesmentioning

confidence: 99%

Advanced Materials for Zinc‐Based Flow Battery: Development and Challenge

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…The main goal for low resource use andc arbon footprint is the development of new catalytic processes for one-step transformations that currently require multiple stages and often also involve the intermediate formation of high-energyi ntermediates. It may be also possible to have analogous active sites, buti nc onductive ordered pore structures (zeolite carbon replica, for example, or nanosheet zeolite-type metal organic framework [10] )t oa ssist the transformation with electrons and thus developr enewable-energy-driven processes for the direct conversion of methane. [8] Other relevant example is the chemicalu tilization of methane requiring currently the energy-intensive step of syngasf ormation.…”

Section: Precisesynthesis Of Catalytic Materialsmentioning

confidence: 99%

“…[9] There have been promisingr esults, but productivities have, in general,b een very low,a side from other issues such as closing the catalytic cycle and stability.T hus,t he synthetic effort should be directed to developing systems where the same type of active sites is present,b ut in significantly larger amountst oh ave greater productivities, or where co-elements are presentt oc lose the catalytic cycle. It may be also possible to have analogous active sites, buti nc onductive ordered pore structures (zeolite carbon replica, for example, or nanosheet zeolite-type metal organic framework [10] )t oa ssist the transformation with electrons and thus developr enewable-energy-driven processes for the direct conversion of methane. This is justo ne of the possible new opportunities for de-velopingc onceptually new catalysts, but is currently subject to rather limitedr esearch effort.…”

Section: Precisesynthesis Of Catalytic Materialsmentioning

confidence: 99%

Needs and Gaps for Catalysis in Addressing Transitions in Chemistry and Energy from a Sustainability Perspective

Centi

Čejka

2019

ChemSusChem

View full text Add to dashboard Cite

Catalysis is undergoing a major transition resulting from significant changes in chemical and energy production. To honor the 50th anniversary of establishing the Jerzy Haber Institute of Catalysis and Surface Chemistry, this Essay discusses, from a forward‐looking, personal and somewhat provocative perspective, the needs and gaps of catalysis to address the ongoing transition in chemistry and energy from a sustainability perspective. The focus is on a few selected aspects identified as crucial: i) The precise synthesis of catalytic materials, particularly focusing on mesoporous molecular sieves, metal–organic frameworks, and zeolites (particularly two‐dimensional type); ii) advanced catalyst characterization methods; iii) new concepts and approaches needed in catalysis to meet the demands of a field of energy and chemistry in transition.

show abstract

“…In comparison, the CE follows a monotonical increase. The operation at higher currents shortens the charging–discharging time and thus, lessens the crossover effect and increases the CE 3a,7. It is seen that both the discharging/charging curves and the efficiencies remain stable in the 200‐cycle operation.…”

mentioning

confidence: 90%

Efficient Nitrogen‐Doped Carbon for Zinc–Bromine Flow Battery

Xiang

Tan

Piao

et al. 2019

Small

View full text Add to dashboard Cite

The zinc–bromine flow battery (ZBFB) is one of the most promising technologies for large‐scale energy storage. Here, nitrogen‐doped carbon is synthesized and investigated as the positive electrode material in ZBFBs. The synthesis includes the carbonization of the glucose precursor and nitrogen doping by etching in ammonia gas. Physicochemical characterizations reveal that the resultant carbon exhibits high electronic conductivity, large specific surface area, and abundant heteroatom‐containing functional groups, which benefit the formation and exposure of the active sites toward the Br2/Br− redox couple. As a result, the assembled ZBFB achieves a voltage efficiency of 83.0% and an energy efficiency of 82.5% at a current density of 80 mA cm−2, which are among the top values in literature. Finally, the ZBFB does not yield any detectable degradation in performance after a 200‐cycle charging/discharging test, revealing its high stability. In summary, this work provides a highly efficient electrode material for the zinc–bromine flow battery.

show abstract

From zeolite-type metal organic framework to porous nano-sheet carbon: High activity positive electrode material for bromine-based flow batteries

Cited by 54 publications

References 41 publications

Advanced Materials for Zinc‐Based Flow Battery: Development and Challenge

Advanced Materials for Zinc‐Based Flow Battery: Development and Challenge

Needs and Gaps for Catalysis in Addressing Transitions in Chemistry and Energy from a Sustainability Perspective

Efficient Nitrogen‐Doped Carbon for Zinc–Bromine Flow Battery

Contact Info

Product

Resources

About