Themed collection Editor’s Choice: Zaiping Guo

28 items
Open Access Perspective

Catalytic approaches towards highly durable proton exchange membrane fuel cells with minimized Pt use

Catalytic approaches to enhance PEMFC performances are introduced, especially focusing on the studies reporting MEA cell data.

Graphical abstract: Catalytic approaches towards highly durable proton exchange membrane fuel cells with minimized Pt use
Open Access Perspective

Engineering and characterization of interphases for lithium metal anodes

Different strategies of SEI engineering such as modification, additive application, and artificial SEI for electrolyte are summarized. Characterization techniques for SEI studies using X-ray, neutron, and electron as probing beams are discussed.

Graphical abstract: Engineering and characterization of interphases for lithium metal anodes
Open Access Perspective

Improving the intrinsic activity of electrocatalysts for sustainable energy conversion: where are we and where can we go?

We evaluate the improvements over the past two decades in intrinsic activity of electrocatalysts for sustainable energy conversion, and highlight opportunities from tuning the electrolyte.

Graphical abstract: Improving the intrinsic activity of electrocatalysts for sustainable energy conversion: where are we and where can we go?
Open Access Perspective

Active site engineering of single-atom carbonaceous electrocatalysts for the oxygen reduction reaction

This Perspective summarizes and highlights the recent progress and milestones relating to the active site engineering of single atom carbonous electrocatalysts for enhancing the electrocatalytic oxygen reduction reaction activity.

Graphical abstract: Active site engineering of single-atom carbonaceous electrocatalysts for the oxygen reduction reaction
From the themed collection: Editor’s Choice: Zaiping Guo
Open Access Perspective

Single-ion conducting polymer electrolytes as a key jigsaw piece for next-generation battery applications

A review of the physicochemical properties of single-ion conducting polymer electrolytes is presented. The standard characterization method, remarkable electrochemical properties and perspectives are further highlighted.

Graphical abstract: Single-ion conducting polymer electrolytes as a key jigsaw piece for next-generation battery applications
From the themed collection: Editor’s Choice: Zaiping Guo
Open Access Perspective

Constructing nitrided interfaces for stabilizing Li metal electrodes in liquid electrolytes

In this perspective, we make a systematic summary and give out our comments on constructing nitrided interfaces for stabilizing Li metal electrodes.

Graphical abstract: Constructing nitrided interfaces for stabilizing Li metal electrodes in liquid electrolytes
Open Access Perspective

Metal–organic framework gels and monoliths

This perspective links the synthesis of MOF Gels to the formation of MOF-monoliths and their resultant properties and application.

Graphical abstract: Metal–organic framework gels and monoliths
From the themed collection: Editor’s Choice: Zaiping Guo
Open Access Review Article

Solar energy conversion using first row d-block metal coordination compound sensitizers and redox mediators

The progress over the last decade in the applications of first row d-block metal, especially iron, cobalt, copper and zinc, coordination compounds in redox shuttles and sensitizers in dye-sensitized solar cells is reviewed.

Graphical abstract: Solar energy conversion using first row d-block metal coordination compound sensitizers and redox mediators
From the themed collection: Editor’s Choice: Vincent Artero
Open Access Review Article

Single-atom catalysts for high-energy rechargeable batteries

Single-atom catalysts are reviewed, aiming to achieve optimized properties to boost electrochemical performances of high-energy batteries.

Graphical abstract: Single-atom catalysts for high-energy rechargeable batteries
From the themed collection: Editor’s Choice: Zaiping Guo
Open Access Review Article

On the underestimated influence of synthetic conditions in solid ionic conductors

Influence of synthesis and processing on the nature of ultimate product and the ionic transport properties of superionic conductors.

Graphical abstract: On the underestimated influence of synthetic conditions in solid ionic conductors
From the themed collection: Editor’s Choice: Zaiping Guo
Open Access Edge Article

In situ anchor of Na2Ti3O7 in nitrogen-rich carbon hollow red blood cell-like structure as a 0D-3D hierarchical electrode material for efficient electrochemical desalination

Hollow red cell-like Na2Ti3O7/nitrogen-doped carbon are synthesized by a template-self strategy.

Graphical abstract: In situ anchor of Na2Ti3O7 in nitrogen-rich carbon hollow red blood cell-like structure as a 0D-3D hierarchical electrode material for efficient electrochemical desalination
From the themed collection: Editor’s Choice: Zaiping Guo
Open Access Edge Article

High-performance all-solid-state electrolyte for sodium batteries enabled by the interaction between the anion in salt and Na3SbS4

A high-performance all-solid-state PEO/NaTFSI/Na3SbS4 electrolyte for sodium batteries is realized owing to the electrostatic interaction between TFSI in the salt and Na3SbS4, which immobilizes TFSI anions and promotes the dissociation of NaTFSI.

Graphical abstract: High-performance all-solid-state electrolyte for sodium batteries enabled by the interaction between the anion in salt and Na3SbS4
From the themed collection: In celebration of Chinese New Year
Open Access Edge Article

Mixed-conducting properties of annealed polyacrylonitrile activated by n-doping of conjugated domains

Thermal annealing of polyacrylonitrile results in the formation of conjugated imine domains. When of sufficient size, these conjugated domains can be electrochemically activated to exhibit both electronic and ionic conductivity.

Graphical abstract: Mixed-conducting properties of annealed polyacrylonitrile activated by n-doping of conjugated domains
From the themed collection: Editor’s Choice: Zaiping Guo
Open Access Edge Article

Computational and experimental investigation of the effect of cation structure on the solubility of anionic flow battery active-materials

Active-material solubility is critical in determining NRFB energy density, yet a predictive model accounting for solid-state cohesion energy has remained elusive. Herein we present such, based on an empirically calibrated computational framework.

Graphical abstract: Computational and experimental investigation of the effect of cation structure on the solubility of anionic flow battery active-materials
From the themed collection: Editor’s Choice: Zaiping Guo
Open Access Edge Article

The solvation structure, transport properties and reduction behavior of carbonate-based electrolytes of lithium-ion batteries

The different roles of the anion, cyclic and linear carbonates, and additive in mixed-carbonate electrolytes are revealed. The anion–solvent exchange mechanism and factors influencing the solid electrolyte interphase (SEI) formation are deciphered.

Graphical abstract: The solvation structure, transport properties and reduction behavior of carbonate-based electrolytes of lithium-ion batteries
From the themed collection: Editor’s Choice: Zaiping Guo
Open Access Edge Article

Self-assembled cationic organic nanosheets: role of positional isomers in a guanidinium-core for efficient lithium-ion conduction

Self-assembled organic nanosheets (SONs) having a near-atomic thickness (∼4.5 nm) are obtained through exfoliation. Among two positional isomers of the guanidinium-core analogue used for SONs, one shows greatly improved Li+ ion conductivity.

Graphical abstract: Self-assembled cationic organic nanosheets: role of positional isomers in a guanidinium-core for efficient lithium-ion conduction
From the themed collection: Editor’s Choice: Zaiping Guo
Open Access Edge Article

A vanadium-based oxide-phosphate-pyrophosphate framework as a 4 V electrode material for K-ion batteries

Highly pure K6(VO)2(V2O3)2(PO4)4(P2O7), synthesized from the oxalatophosphate precursor, demonstrates a reversible potassium extraction/insertion capacity of 59 mA h g−1 with a single discharge voltage plateau at 4.0 V at room temperature.

Graphical abstract: A vanadium-based oxide-phosphate-pyrophosphate framework as a 4 V electrode material for K-ion batteries
From the themed collection: Editor’s Choice: Zaiping Guo
Open Access Edge Article

Trapped interfacial redox introduces reversibility in the oxygen reduction reaction in a non-aqueous Ca2+ electrolyte

An interlayer product of oxygen reduction with Ca2+/TBA+ yields a quasi-reversible oxygen evolution reaction by inducing a trapped interfacial redox process.

Graphical abstract: Trapped interfacial redox introduces reversibility in the oxygen reduction reaction in a non-aqueous Ca2+ electrolyte
Open Access Edge Article

Adaptive response by an electrolyte: resilience to electron losses in a dye-sensitized porous photoanode

Interfacial electrolyte reactions in the pores of a photoanode consume electrons. The losses are offset by compensating solution-phase reactions that generate I locally, and promote efficient dye cycling and photocurrent generation.

Graphical abstract: Adaptive response by an electrolyte: resilience to electron losses in a dye-sensitized porous photoanode
From the themed collection: Editor’s Choice: Zaiping Guo
Open Access Edge Article

Non-concentrated aqueous electrolytes with organic solvent additives for stable zinc batteries

Involvement of dimethyl carbonate and trifluoromethanesulfonate anions in a hybrid aqueous electrolyte enables the formation of a new Zn2+-solvation structure and a ZnF2–ZnCO3-rich interphase that stabilizes the Zn battery chemistry.

Graphical abstract: Non-concentrated aqueous electrolytes with organic solvent additives for stable zinc batteries
From the themed collection: Editor’s Choice: Zaiping Guo
Open Access Edge Article

Optimal water concentration for aqueous Li+ intercalation in vanadyl phosphate

We demonstrate aqueous Li+ intercalation chemistry of vanadyl phosphate in the form of monohydrates, which are only stable in an optimal water-concentration environment.

Graphical abstract: Optimal water concentration for aqueous Li+ intercalation in vanadyl phosphate
From the themed collection: Editor’s Choice: Zaiping Guo
Open Access Edge Article

Nernstian Li+ intercalation into few-layer graphene and its use for the determination of K+ co-intercalation processes

Nernstian signatures and swift voltammetry at graphene electrodes help elucidate alkali ion (co-)intercalation.

Graphical abstract: Nernstian Li+ intercalation into few-layer graphene and its use for the determination of K+ co-intercalation processes
From the themed collection: Editor’s Choice: Zaiping Guo
Open Access Edge Article

A single-ion conducting covalent organic framework for aqueous rechargeable Zn-ion batteries

A zinc sulfonated covalent organic framework is presented as a new single-ion conducting electrolyte for aqueous rechargeable Zn-ion batteries.

Graphical abstract: A single-ion conducting covalent organic framework for aqueous rechargeable Zn-ion batteries
From the themed collection: Editor’s Choice: Zaiping Guo
Open Access Edge Article

Predicting the chemical reactivity of organic materials using a machine-learning approach

Stability and compatibility between chemical components are essential parameters that need to be considered in the selection of functional materials in configuring a system.

Graphical abstract: Predicting the chemical reactivity of organic materials using a machine-learning approach
From the themed collection: Editor’s Choice: Zaiping Guo
Open Access Edge Article

Understanding the electrochemistry of “water-in-salt” electrolytes: basal plane highly ordered pyrolytic graphite as a model system

The stability of water-in-salt electrolyte systems is investigated using highly concentrated solutions of KF(aq) with graphite as a model system.

Graphical abstract: Understanding the electrochemistry of “water-in-salt” electrolytes: basal plane highly ordered pyrolytic graphite as a model system
From the themed collection: Editor’s Choice: Zaiping Guo
Open Access Edge Article

Dye-sensitized solar cells under ambient light powering machine learning: towards autonomous smart sensors for the internet of things

Indoor light harvesters enable machine learning on fully autonomous IoT devices at 2.72 × 1015 photons per inference.

Graphical abstract: Dye-sensitized solar cells under ambient light powering machine learning: towards autonomous smart sensors for the internet of things
From the themed collection: Editor’s Choice: Zaiping Guo
Open Access Edge Article

A water-based and metal-free dye solar cell exceeding 7% efficiency using a cationic poly(3,4-ethylenedioxythiophene) derivative

A new cationic PEDOT derivative inhibits repulsion phenomena within iodine-based electrolytes, boosting the efficiency of aqueous solar cells.

Graphical abstract: A water-based and metal-free dye solar cell exceeding 7% efficiency using a cationic poly(3,4-ethylenedioxythiophene) derivative
From the themed collection: Editor’s Choice: Zaiping Guo
Open Access Edge Article

Proton-conduction photomodulation in spiropyran-functionalized MOFs with large on–off ratio

A spiropyran functionalized metal–organic framework is presented, allowing to photomodulate the aqueous proton conductivity by two orders of magnitude.

Graphical abstract: Proton-conduction photomodulation in spiropyran-functionalized MOFs with large on–off ratio
From the themed collection: Editor’s Choice: Zaiping Guo
28 items

About this collection

In 2022, Chemical Science welcomed Professor Zaiping Guo to the journal as an Associate Editor, handling papers in the areas of energy storage and conversion. Zaiping has looked back over recently published Chemical Science papers and has selected some outstanding articles that she would like to share, with a focus on recent trends in batteries, electrocatalysts, and solar cells. We hope you enjoy reading through this selection.

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