4.6 Article

Accelerating the reaction kinetics of lithium-oxygen chemistry by modulating electron acceptance-donation interaction in electrocatalysts

Related references

Note: Only part of the references are listed.
Article Multidisciplinary Sciences

A long-life lithium-oxygen battery via a molecular quenching/mediating mechanism

Jinqiang Zhang et al.

Summary: A new mechanism for operating lithium-oxygen batteries using a versatile molecule has been reported, which improves discharge capacity, energy efficiency, and cycle life. This molecule acts as a redox mediator and a superoxide quencher, addressing parasitic reactions and lithium corrosion.

SCIENCE ADVANCES (2022)

Article Chemistry, Physical

First-Order or Second-Order? Disproportionation of Lithium Superoxide in Li-O2 Batteries

Lu He et al.

Summary: The disproportionation of LiO2 to Li2O2 in Li-O2 batteries is a key step, transitioning from a first-order reaction at high concentrations of superoxide to a second-order reaction at low concentrations. LiO2 is chemically reduced by free superoxides to form Li2O2 and O2, rather than reacting with another LiO2 via disproportionation. This chemical-reduction mechanism explains the change in reaction order and kinetics profile.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2022)

Article Chemistry, Multidisciplinary

Basal-Plane-Activated Molybdenum Sulfide Nanosheets with Suitable Orbital Orientation as Efficient Electrocatalysts for Lithium-Sulfur Batteries

Da Tian et al.

Summary: CNT@MoS2-B nanosheets, with B-doping, serve as catalysts to enhance Li-S batteries' performance by improving the reactivity of the MoS2 basal plane for Li2S formation and dissolution kinetics. The incorporation of B significantly increases the reactivity of MoS2 basal plane, leading to high rate capability and outstanding cycling stability of S/CNT@MoS2-B cathodes, offering fresh insights for developing effective catalysts to accelerate LiPS conversion.

ACS NANO (2021)

Article Chemistry, Multidisciplinary

Conductive CuCo-Based Bimetal Organic Framework for Efficient Hydrogen Evolution

Bo Geng et al.

Summary: Incorporation of Co into Cu-CAT nanorod arrays improves the efficiency of hydrogen evolution reaction with lower overpotentials, optimized adsorption energy for hydrogen and water, and acceleration of reaction steps, opening a new pathway for the rational design of highly efficient MOF-based electrocatalysts.

ADVANCED MATERIALS (2021)

Article Chemistry, Multidisciplinary

Atomically Dispersed Co2-N6 and Fe-N4 Costructures Boost Oxygen Reduction Reaction in Both Alkaline and Acidic Media

Zhe Wang et al.

Summary: Researchers have developed a new ternary-atom catalyst with Co-Co dimers and Fe single sites, demonstrating superior performance in ORR. By controlling the local configuration of atoms, researchers have enhanced the performance of the catalyst, making it a promising alternative to platinum for driving zinc-air batteries.

ADVANCED MATERIALS (2021)

Article Engineering, Environmental

Fluorination of ZIF-67 framework templated Prussian blue analogue nanobox for efficient electrochemical oxygen evolution reaction

Xiaocong Gu et al.

Summary: Efficient oxygen evolution nano-catalyst is achieved by fluorination of ZIF-67 Framework templated Prussian blue analogue hollow nano-box, showing high catalytic performance for OER. The structural transformation and morphology are influenced by fluorination temperature, correlating with the catalytic ability. The product obtained at 250 degrees C exhibits the highest catalytic performance, surpassing commercial IrO2 catalysts, with high stability and intrinsic activity.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Engineering, Environmental

A new defect-rich and ultrathin ZnCo layered double hydroxide/carbon nanotubes architecture to facilitate catalytic conversion of polysulfides for high-performance Li-S batteries

Chaojie Li et al.

Summary: The study developed a lithium-sulfur battery material with enhanced performance by utilizing oxygen vacancies to regulate the catalytic activity and adsorption capacity mechanism, resulting in excellent performance under high sulfur loading.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Chemistry, Multidisciplinary

Understanding the Effect of Second Metal on CoM (M = Ni, Cu, Zn) Metal-Organic Frameworks for Electrocatalytic Oxygen Evolution Reaction

Jie Wu et al.

Summary: This study investigates the OER performance of Co-based bimetallic MOFs on carbon cloth, comparing different metal combinations. The results show that CoZn MOFs exhibit the best OER performance, attributed to the higher oxidation state of Co and the choice of second metal. Theoretical calculations suggest that tuning the electronic structure of the metal site can be an effective strategy for enhancing OER activity in MOFs.

SMALL (2021)

Article Chemistry, Physical

Implanting cation vacancies in Ni-Fe LDHs for efficient oxygen evolution reactions of lithium-oxygen batteries

Yin Zhou et al.

Summary: Research has shown that NiFe layered double hydroxides with Ni vacancies as cathode catalysts exhibit excellent performance in Li-O-2 batteries, reducing charging overpotentials and providing a strategy for designing high-performance cathode catalysts for Li-O-2 batteries.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Article Chemistry, Physical

Tailoring the 3d-orbital electron filling degree of metal center to boost alkaline hydrogen evolution electrocatalysis

Yana Men et al.

Summary: Tailoring the 3d-orbital electron filling degree of Co center in CoP can enhance the alkaline hydrogen evolution reaction (HER) performance at the atomic level, with water dissociation step identified as the root of sluggish alkaline HER kinetics. By doping Se into CoP, remarkable HER performance was achieved, and this design principle can also be applied to other anions-doped CoP for rational design of transition metal-based electrocatalysts towards alkaline HER.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Article Chemistry, Physical

A-site cationic defects induced electronic structure regulation of LaMnO3 perovskite boosts oxygen electrode reactions in aprotic lithium-oxygen batteries

Dayue Du et al.

Summary: This study presents a facile strategy to fabricate LaMnO3-δ perovskite with abundant defects, which exhibits superior electrocatalytic performance in Li-O-2 batteries by modulating the local coordination state of active Mn atoms and optimizing the electronic structure. The abundant crystal defects not only enhance the covalency of Mn-O bonds but also promote lattice oxygen participated redox reaction, accelerating electron transport and regulating Li2O2 formation and decomposition mechanism.

ENERGY STORAGE MATERIALS (2021)

Article Chemistry, Physical

Two-dimensional Mo-based compounds for the Li-O2 batteries: Catalytic performance and electronic structure studies

Xiaowei Mu et al.

Summary: This study compares the performance of three two-dimensional molybdenum-based compounds in Li-O-2 batteries, with MoN showing superior battery performance. Density functional theory calculations reveal the metallic property of MoN and its excellent catalytic performance, providing insights and guidance for designing high-performance cathode catalysts for Li-O-2 batteries at the atomic level.

ENERGY STORAGE MATERIALS (2021)

Article Chemistry, Multidisciplinary

An Adjacent Atomic Platinum Site Enables Single-Atom Iron with High Oxygen Reduction Reaction Performance

Ali Han et al.

Summary: The modulation effect can enhance the catalytic activity of Fe-N-4 moiety through adjacent Pt-N-4 moiety, but it is less effective for optimizing the ORR performances of Co-N-4/Pt-N-4 and Mn-N-4/Pt-N-4 systems.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Article Chemistry, Multidisciplinary

Crystal Phase-Controlled Modulation of Binary Transition Metal Oxides for Highly Reversible Li-O2 Batteries

Dong Cao et al.

Summary: By controlling the crystal phase of transition metal oxides, it is possible to reduce the charge overpotential, improving the efficiency and cycle life of Li-O-2 batteries. Optimization of the Mn/Co molar ratio = 8/2 has been shown to significantly reduce the charge overpotential, providing technical support for developing high-performance transition metal oxide catalysts.

NANO LETTERS (2021)

Article Multidisciplinary Sciences

Boosting oxygen reduction activity and enhancing stability through structural transformation of layered lithium manganese oxide

Xuepeng Zhong et al.

Summary: Structural degradation in manganese oxides leads to unstable activity during long-term cycles. Authors demonstrated that reducing unstable O 2p holes and the short interlayer distance of layered lithium manganese oxide are favorable for excellent electrocatalytic stability and activity.

NATURE COMMUNICATIONS (2021)

Article Chemistry, Physical

3d-Orbital Occupancy Regulated Ir-Co Atomic Pair Toward Superior Bifunctional Oxygen Electrocatalysis

Meiling Xiao et al.

Summary: In this study, the electronic configuration of Co d-orbital was modulated by constructing the Ir-Co atomic pair, leading to boosted bifunctional activity. The developed dual-atom IrCo-N-C catalyst exhibited unprecedented activity, outperforming commercial Pt/C and Ir/C benchmarks.

ACS CATALYSIS (2021)

Article Chemistry, Physical

Quasi-Two-Dimensional Earth-Abundant Bimetallic Electrocatalysts for Oxygen Evolution Reactions

Yunhe Zhao et al.

Summary: This study successfully synthesized bimetallic Co-Mo-O ultrathin nanosheets with enriched surface catalytic active site ratio, among which nanosheets with 2:1 Co-to-Mo ratio showed significantly enhanced OER catalytic activity. This 2D morphology of bimetallic materials introduces a promising possibility for creating high-performance electrocatalysts.

ACS ENERGY LETTERS (2021)

Article Chemistry, Physical

Unique intermediate adsorption enabled by anion vacancies in metal sulfide embedded MXene nanosheets overcoming kinetic barriers of oxygen electrode reactions in lithium-oxygen batteries

Ruixin Zheng et al.

Summary: Designing electrode materials with sulfur vacancy-rich Ni3S2 on two-dimensional MXene as a bifunctional catalyst for lithium-oxygen batteries (LOBs) significantly reduces overpotentials, improves long-term cyclic stability, and modifies the deposition mechanism of Li2O2 by exposing coordination unsaturated sites on the surface.

ENERGY STORAGE MATERIALS (2021)

Article Chemistry, Multidisciplinary

An artificial hybrid interphase for an ultrahigh-rate and practical lithium metal anode

Anjun Hu et al.

Summary: An artificial hybrid SEI layer composed of lithium-antimony alloy and lithium fluoride was constructed to reduce electron tunneling between the Li anode and SEI, resulting in uniform Li deposition and stable Li plating/stripping behaviors at an ultrahigh rate. This work uncovers the internal mechanism of Li+ transport within the SEI component, providing a pathway to stabilize the Li anode under practical high-rate conditions.

ENERGY & ENVIRONMENTAL SCIENCE (2021)

Article Chemistry, Physical

Highly Efficient Nb2C MXene Cathode Catalyst with Uniform O-Terminated Surface for Lithium-Oxygen Batteries

Gaoyang Li et al.

Summary: The study demonstrates the catalytic capability of Nb2C MXene as a cathode material for LOBs, highlighting its superior electrocatalytic performance and high-rate cycle stability.

ADVANCED ENERGY MATERIALS (2021)

Review Chemistry, Multidisciplinary

Lithium-Oxygen Batteries and Related Systems: Potential, Status, and Future

Won-Jin Kwak et al.

CHEMICAL REVIEWS (2020)

Review Chemistry, Physical

The Current State of Aqueous Zn-Based Rechargeable Batteries

Ya-Ping Deng et al.

ACS ENERGY LETTERS (2020)

Article Chemistry, Physical

Tunable Cationic Vacancies of Cobalt Oxides for Efficient Electrocatalysis in Li-O2Batteries

Xiaomeng Liu et al.

ADVANCED ENERGY MATERIALS (2020)

Article Chemistry, Physical

Limited effects of a redox mediator in lithium-oxygen batteries: indecomposable by-products

Hun Kim et al.

JOURNAL OF MATERIALS CHEMISTRY A (2020)

Article Multidisciplinary Sciences

PdMo bimetallene for oxygen reduction catalysis

Mingchuan Luo et al.

NATURE (2019)

Article Chemistry, Physical

A comparative kinetic study of redox mediators for high-power lithium-oxygen batteries

Youngmin Ko et al.

JOURNAL OF MATERIALS CHEMISTRY A (2019)

Review Chemistry, Multidisciplinary

Electrocatalysis for the oxygen evolution reaction: recent development and future perspectives

Nian-Tzu Suen et al.

CHEMICAL SOCIETY REVIEWS (2017)

Article Chemistry, Multidisciplinary

Cathode Surface-Induced, Solvation- Mediated, Micrometer-Sized Li2O2 Cycling for Li-O2 Batteries

Ji-Jing Xu et al.

ADVANCED MATERIALS (2016)