1. Catalyst-directed vibrational frequency disparity for isotopologue sieving in CO2 electrolysis1
A theoretical isotope factor guided nitrogen modification of tin catalysts for carbon-dioxide isotope separation. Experiments enriched carbon-13 carbon dioxide above 14% from a natural-abundance feed of 1.1% at 10 amperes, linking vibrational-frequency design to measured separation. This offers a concrete catalyst-selection strategy. Our account uses the restricted-access publisher abstract; the reported enrichment does not by itself establish process economics.1
2. Single-Atom Ce Enables Interfacial Pathway Regulation of Fe2 Atomic Pairs in Alkaline Oxygen Reduction2
Adding isolated cerium sites near iron pairs changed the interfacial environment of an alkaline oxygen-reduction catalyst. Spectroscopy, isotope measurements and calculations support improved proton supply and less peroxide formation, while device tests connected the design to durable operation. This addresses the activity–stability tradeoff through surrounding chemistry. Our account uses the publisher-deposited abstract; the proposed pathway remains the authors’ mechanistic interpretation.2
3. GITT Evaluation with PyBaMM3
Synthetic battery data generated with PyBaMM exposed systematic underestimation of lithium diffusion coefficients by galvanostatic intermittent titration analysis. Errors grew at higher diffusivities and depended strongly on cell design, clarifying when a familiar measurement-derived parameter can mislead battery models. This unreviewed preprint supports controlled comparative use of the technique. Our account is restricted to the deposited abstract and reports simulated validation.3
4. Determining Which Phonons Affect Dynamic Disorder and Charge Mobility in Molecular Crystals4
A singular-value-decomposition analysis groups phonon motions by their contribution to dynamic disorder in molecular crystals. Neutron-scattering validation supported the physical description, and no single original mode dominated disorder in the studied molecules. Side-chain changes also altered backbone motion, suggesting concrete routes for phonon engineering. This unreviewed preprint is summarized from its deposited abstract; the reported design guidance remains specific to the systems examined.4
5. Fracture mechanics favors lower-than-expected stack pressures in halide solidstate batteries5
Operando microscopy linked capacity loss in halide solid-state batteries to electrolyte fracture, showing that additional stack pressure can worsen damage. Guided by that mechanism, an anode-free pouch cell retained 85% capacity after 200 cycles at C/3 under 2 megapascals. This unreviewed preprint connects mechanical evidence to a practical operating choice. Our account uses the deposited abstract and does not establish commercial readiness.5
References
Ningce Zhang; Haoyun Bai; Guoqiang Shen; Luyao Ma; Bohua Ren; Haochen Shen; Xiaodong Yang; Chao Liu; Kaiyu Qiu; Shuxuan Liu; Wenfei Long; Jiale Sun; Yuqin Zou; Guobin Wen; Shuangyin Wang. Catalyst-directed vibrational frequency disparity for isotopologue sieving in CO2 electrolysis. Nature Chemistry; 2026; Peer-reviewed journal article; first online. DOI: 10.1038/s41557-026-02257-9. Accessed 2026-09-27T16:11:47.401Z.
Source evidence and access
Publisher Abstract, paragraphs 2–3; Published date and author list
Evidence paraphrase: Publisher abstract paragraphs2–3: theoretical isotope factor delta tracks measured isotope separation; nitrogen doping changes tin-catalyst intermediate vibrations and adsorption. The reported output exceeds14.0percent carbon13 CO2 from1.1percent natural-abundance feed at10A; separation factor exceeds14.1. Source preview explicitly restricts full-text access.
Restricted-access publisher abstract, bibliographic metadata and figure captions inspected; main text not accessed.
Canhui Zhang; Xiaofan Li; Ning Wang; Wenxiao Jiang; Haibing Ye; Tengjia Ni; Xu Liu; Zitian Zhao; Jian Zhou; Hongyan Zhao; Heqing Jiang; Minghua Huang. Single-Atom Ce Enables Interfacial Pathway Regulation of Fe2 Atomic Pairs in Alkaline Oxygen Reduction. Journal of the American Chemical Society; 2026; Peer-reviewed journal article; first online. DOI: 10.1021/jacs.6c07837. Accessed 2026-09-27T16:11:47.401Z.
Source evidence and access
Original deposited abstract and first-online/posting metadata; Crossref work 10.1021/jacs.6c07837
Evidence paraphrase: The deposited abstract combines in-situ spectroscopy, kinetic isotope measurements and calculations to support Ce-modified interfacial water/proton chemistry near Fe2 pairs. The catalyst gives0.92V half-wave potential,1.6percent peroxide,96percent retained current at50000s,over1100h Zn-air cycling and1.0W/cm2 anion-exchange fuel-cell peak power.
Abstract-only: original publisher/repository-deposited abstract and metadata inspected via Crossref; full methods not inspected.
Marcin Kwidziński. GITT Evaluation with PyBaMM. ChemRxiv; 2026; Unreviewed preprint; version 1. DOI: 10.26434/chemrxiv.15009346/v1. Accessed 2026-09-27T16:11:47.401Z.
Source evidence and access
Original deposited abstract and first-online/posting metadata; Crossref work 10.26434/chemrxiv.15009346/v1
Evidence paraphrase: The repository-deposited abstract compares GITT-inferred diffusion with known inputs to a Doyle–Fuller–Newman model in PyBaMM. Inferred values are systematically low, with worse absolute error at higher diffusivity and in nonoptimized cells. Reliable optimized-cell extraction is generally limited toD≤10^-14m2/s; consistent conditions retain comparative value.
Abstract-only: original publisher/repository-deposited abstract and metadata inspected via Crossref; full methods not inspected.
Chen-Wei Chiang; Toulik Maitra; Jeremy K. Mason; Adam J. Moulé. Determining Which Phonons Affect Dynamic Disorder and Charge Mobility in Molecular Crystals. ChemRxiv; 2026; Unreviewed preprint; version 1. DOI: 10.26434/chemrxiv.15009367/v1. Accessed 2026-09-27T16:11:47.401Z.
Source evidence and access
Original deposited abstract and first-online/posting metadata; Crossref work 10.26434/chemrxiv.15009367/v1
Evidence paraphrase: The repository-deposited abstract describes SVD projected phonon modes, inelastic-neutron-scattering validation, and largest projected-mode contributions of12–45percent to disorder in the studied molecules. No single original mode dominates. Side-chain location/branching reshapes backbone vibrational states and coupling.
Abstract-only: original publisher/repository-deposited abstract and metadata inspected via Crossref; full methods not inspected.
Liqun Guo; Jie Zheng; Lihong Zhao; Santosh Thapa; Yanliang Liang; Phat Tieu; Mai Le; Yang-Tse Cheng; Robert L. Sacci; Jagjit Nanda; Yan Yao. Fracture mechanics favors lower-than-expected stack pressures in halide solidstate batteries. ChemRxiv; 2026; Unreviewed preprint; version 1. DOI: 10.26434/chemrxiv.15009212/v1. Accessed 2026-09-27T16:11:47.402Z.
Source evidence and access
Original deposited abstract and first-online/posting metadata; Crossref work 10.26434/chemrxiv.15009212/v1
Evidence paraphrase: The repository-deposited abstract reports operando SEM crack initiation/propagation and nanoindentation fracture toughness0.23MPa sqrt(m) forLi3YCl6. Pressure-dependent morphology/electrochemistry indicates higher pressure can accelerate fracture. An anode-free halide pouch cell retains85percent capacity after200cycles atC/3 under2MPa.
Abstract-only: original publisher/repository-deposited abstract and metadata inspected via Crossref; full methods not inspected.
Publication record
Published 2026-09-27.
Sources, selection and claims were checked in an independent AI editorial review, followed by the AI editor's approval. This is not academic peer review.
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