Crystal Facet Engineering of MXene-Derived TiN Nanoflakes as Efficient Bidirectional Electrocatalyst for Advanced Lithium-Sulfur Batteries.

The design of nanomaterials with grain orientation structure by crystal facet engineering is of great significance for boosting the catalytic ability and electrochemical properties, but the controllable synthesis is still a challenge. Here, TiN nanoflakes with exposed (001) facets are prepared using 2D Ti3 C2 MXene as the initial reactant and applied as a bidirectional electrocatalyst for the reduction and oxidation process in lithium-sulfur batteries (LSBs). The (001) facet-dominated TiN nanoflakes have a strong adsorption capacity for soluble lithium polysulfides (LiPSs). More importantly, theoretical calculations and experiment results confirm the (001) facet-dominated TiN nanoflakes catalyze the conversion of soluble LiPSs to Li2 S2 /Li2 S to induce the Li2 S uniform deposition in the discharge process and decrease the delithiation barrier of Li2 S in the charge process. Therefore, the excellent electrochemical properties of LSBs are achieved, which demonstrates a high discharge capacity of 949 mAh g-1 at 1 C and maintains high capacity reversibility with a decay rate of 0.033% per cycle after 800 cycles.

[1]  Jiaqi Huang,et al.  Toward Practical High‐Energy‐Density Lithium–Sulfur Pouch Cells: A Review , 2022, Advanced materials.

[2]  Chenyang Zhao,et al.  Crystal Facet Engineering Induced Active Tin Dioxide Nanocatalysts for Highly Stable Lithium–Sulfur Batteries , 2021, Advanced Energy Materials.

[3]  H. Pang,et al.  Rational Design and General Synthesis of Multimetallic Metal–Organic Framework Nano‐Octahedra for Enhanced Li–S Battery , 2021, Advanced materials.

[4]  Jingyu Sun,et al.  Manipulating Electrocatalytic Li2S Redox via Selective Dual‐Defect Engineering for Li–S Batteries , 2021, Advanced materials.

[5]  G. Diao,et al.  Embedding Cobalt Atom Clusters in CNT-Wired MoS2 Tube-in-Tube Nanostructures with Enhanced Sulfur Immobilization and Catalyzation for Li-S Batteries. , 2021, Small.

[6]  Kai Xie,et al.  Mechanism investigation of iron selenide as polysulfide mediator for long-life lithium-sulfur batteries , 2021, Chemical Engineering Journal.

[7]  Renjie Chen,et al.  Self‐Assembly of 0D–2D Heterostructure Electrocatalyst from MOF and MXene for Boosted Lithium Polysulfide Conversion Reaction , 2021, Advanced materials.

[8]  G. Diao,et al.  Self-Assembled Polyoxometalate Nanodots as Bidirectional Cluster Catalysts for Polysulfide/Sulfide Redox Conversion in Lithium-Sulfur Batteries. , 2021, ACS nano.

[9]  Jiaqi Huang,et al.  Regulation of carbon distribution to construct high-sulfur-content cathode in lithium–sulfur batteries , 2021 .

[10]  P. Shen,et al.  2D TiN@C sheets derived from MXene as highly efficient polysulfides traps and catalysts for lithium−sulfur batteries , 2021, Electrochimica Acta.

[11]  Quan-hong Yang,et al.  Cobalt-Doping of Molybdenum Disulfide for Enhanced Catalytic Polysulfide Conversion in Lithium-Sulfur Batteries. , 2021, ACS nano.

[12]  Z. Su,et al.  Expediting the Conversion of Li2S2 to Li2S Enables High-Performance Li-S Batteries. , 2021, ACS nano.

[13]  Jiaqi Huang,et al.  An Organodiselenide Comediator to Facilitate Sulfur Redox Kinetics in Lithium–Sulfur Batteries , 2021, Advanced materials.

[14]  Dan Zhou,et al.  Selective S/Li2S Conversion via in-Built Crystal Facet Self-Mediation: Toward High Volumetric Energy Density Lithium-Sulfur Batteries. , 2020, ACS nano.

[15]  Yongsong Luo,et al.  Rooting MnO2 nanosheet on carbon nanoboxes as efficient catalytic host for lithium–sulfur battery , 2020, Journal of Solid State Electrochemistry.

[16]  Guofu Zhou,et al.  Conductive FeOOH as Multifunctional Interlayer for Superior Lithium-Sulfur Batteries. , 2020, Small.

[17]  Guangmin Zhou,et al.  Bidirectional Catalysts for Liquid–Solid Redox Conversion in Lithium–Sulfur Batteries , 2020, Advanced materials.

[18]  Xuting Li,et al.  Promoted deposition of three-dimensional Li2S on catalytic Co phthalocyanine nanorods for stable high-loading lithium-sulfur batteries. , 2020, ACS applied materials & interfaces.

[19]  Feng Wu,et al.  A High‐Efficiency CoSe Electrocatalyst with Hierarchical Porous Polyhedron Nanoarchitecture for Accelerating Polysulfides Conversion in Li–S Batteries , 2020, Advanced materials.

[20]  Kai Xie,et al.  Catalytic Co9S8 decorated carbon nanoboxes as efficient cathode host for long-life lithium-sulfur batteries , 2020, Nano Research.

[21]  L. Wan,et al.  TiN nanocrystal anchored on N-doped graphene as effective sulfur hosts for high-performance lithium-sulfur batteries , 2020, Journal of Energy Chemistry.

[22]  Guofu Zhou,et al.  Hierarchical Defective Fe3‐xC@C Hollow Microsphere Enables Fast and Long‐Lasting Lithium–Sulfur Batteries , 2020, Advanced Functional Materials.

[23]  Xiaolin Xie,et al.  Large-scaled covalent triazine framework modified separator as efficient inhibit polysulfide shuttling in Li-S batteries , 2019, Chemical Engineering Journal.

[24]  Xianyou Wang,et al.  Carbon-Coated Yttria Hollow Spheres as Both Sulfur Immobilizer and Catalyst of Polysulfides Conversion in Lithium-Sulfur Batteries. , 2019, ACS applied materials & interfaces.

[25]  Kai Xie,et al.  Rational Construction of Fe2N@C Yolk-Shell Nanoboxes as Multifunctional Hosts for Ultralong Lithium-Sulfur Batteries. , 2019, ACS nano.

[26]  Yan Yu,et al.  Mechanistic Understanding of Metal Phosphide Host for Sulfur Cathode in High-Energy-Density Lithium-Sulfur Batteries. , 2019, ACS nano.

[27]  Baohua Li,et al.  Co-Fe Mixed Metal Phosphide Nanocubes with Highly Interconnected-Pore Architecture as an Efficient Polysulfide Mediator for Lithium-Sulfur Batteries. , 2019, ACS nano.

[28]  L. Wan,et al.  Cobalt in Nitrogen-Doped Graphene as Single-Atom Catalyst for High-Sulfur Content Lithium-Sulfur Batteries. , 2019, Journal of the American Chemical Society.

[29]  Shuangyang Li,et al.  Embedding S@TiO2 nanospheres into MXene layers as high rate cyclability cathodes for lithium-sulfur batteries , 2019, Electrochimica Acta.

[30]  Jingjing Xu,et al.  Carbon@titanium nitride dual shell nanospheres as multi-functional hosts for lithium sulfur batteries , 2019, Energy Storage Materials.

[31]  Pramod K. Kalambate,et al.  Biomimetic Root-like TiN/C@S Nanofiber as a Freestanding Cathode with High Sulfur Loading for Lithium-Sulfur Batteries. , 2018, ACS applied materials & interfaces.

[32]  L. Mai,et al.  A 3D Nitrogen‐Doped Graphene/TiN Nanowires Composite as a Strong Polysulfide Anchor for Lithium–Sulfur Batteries with Enhanced Rate Performance and High Areal Capacity , 2018, Advanced materials.

[33]  C. Chen,et al.  Natural Porous Biomass Carbons Derived from Loofah Sponge for Construction of SnO 2 @C Composite: A Smart Strategy to Fabricate Sustainable Anodes for Li–Ion Batteries , 2018, ChemistrySelect.

[34]  Zaiping Guo,et al.  Advances in Polar Materials for Lithium–Sulfur Batteries , 2018, Advanced Functional Materials.

[35]  Xiaonong Chen,et al.  Nano-TiO 2 decorated carbon coating on the separator to physically and chemically suppress the shuttle effect for lithium-sulfur battery , 2018 .

[36]  D. He,et al.  Dual functional MoS2/graphene interlayer as an efficient polysulfide barrier for advanced lithium-sulfur batteries , 2017 .