Ruling Huang1, Qing Xue2, Jiao Lin1, XiXue Zhang1, Jiahui Zhou1, Feng Wu1,3,4,5, Li Li1,3,4,5 (✉), and Renjie Chen1,4,5

Layered K0.54Mn0.78Mg0.22O2 is fabricated as potassium-ion batteries (PIBs) cathode for the first time, which delivers smooth charging/discharging curves with high specific capacity and good high-rate cycling stability. In-situ X-ray diffraction (XRD) and ex-situ X-ray photoelectron spectroscopy (XPS) characterization are also used to explore the structural reorganization.
Published: 18 October 2021

Hamidreza Mahdavi1, Huacheng Zhang2, Lauren K. Macreadie3, Cara M. Doherty2, Durga Acharya2, Stefan J. D. Smith1,2 (✉), Xavier Mulet2 (✉), and Matthew R. Hill1,2 (✉)

A fundamental study was performed to systematically investigate the component materials of metal organic framework (MOF) based porous liquids to elucidate the parametric space where stable porous liquid can be generated. The compatibility of porogen molecules and solvents based on competitive hydrophilicity/phobicity interactions of porogens and solvents were investigated.
Published: 26 November 2021

Lin Geng1,§, Qiunan Liu1,§, Jingzhao Chen1, Peng Jia1, Hongjun Ye1, Jitong Yan1,3, Liqiang Zhang1 (✉), Yongfu Tang1,3 (✉), and Jianyu Huang1,2 (✉)

In situ environmental transmission electron microscopy (ETEM) revealed in real time an electrochemical Ostwald ripening (EOR) phenomenon during electrochemical deposition of Na metals. The EOR features the growth of a bigger particle at the expense of the small ones. We revealed two types of EOR: the first one involving electrochemical reaction, while the second one entailing breaking the surface shell and mass transport between the smaller and bigger particles.
Published: 12 October 2021

Jiale Wei1,2, Kai Rong1,2, Xiaolong Li1,2, Yuchen Wang1,2, Zhen-An Qiao3, Youxing Fang1 (✉), and Shaojun Dong1,2 (✉)

By using glucose-urea deep eutectic solvent (DES) as both a solvent and the carbon source of structure-directed template, the synthesis of various high-entropy-oxides (HEOs) with two-dimentional (2D) nanonets and one-dimentional (1D) nanowires was achieved, including rock-salt (Co, Cu, Mg, Ni, Zn)O, spinel (Co, Cr, Fe, Mn, Ni)3O4, and perovskite La(Co, Cr, Fe, Mn, Ni)O3. The as-prepared 2D hierarchical porous (Co, Cu, Mg, Ni, Zn)O with rock-salt structure was further applied as a lithium-ion batteries (LIBs) anode material, exhibiting outstanding cyclic stability.
Published: 05 October 2021

Mukhtar Lawan Adam1,2,5,§, Hongen Zhu1,§, Zhanfeng Liu1, Shengtao Cui1, Pengjun Zhang1, Yi Liu1, Guobin Zhang1, Xiaojun Wu2 (✉), Zhe Sun1,3,4 (✉), and Li Song1 (✉)

Charge density wave (CDW) is suppressed through Sn intercalation in 1T-TiSe2 due to charge doping, and the hybrid mechanism of exciton-phonon interaction and Jahn-Teller-like mechanism plays a significant role in the formation of CDW in 1TTiSe2 and SnxTiSe2.
Published: 12 October 2021

Min Zhao1, Qingyuan Chen2, Yongcheng Zhu2, Yuehui Liu3, Chunchun Zhang4, Gang Jiang2, Meng Zhang2 (✉), and Kui Yu2,3,5 (✉)

We demonstrate a precursor compound (PC)-enabled formation pathway for the CdSe magic-size clusters (MSCs) with a sharp absorption peak at about 420 nm (MSC-420) in aqueous solutions. The coordination between primary amine with PCs may be responsible to the transformation from CdSe PCs to MSC-420.
Published: 18 September 2021

Xiaowen Lu1,§, Chunmu Guo2,§, Mingyang Zhang1, Leipeng Leng1, J. Hugh Horton1,3, Wei Wu2 (✉), and Zhijun Li1 (✉)

We report an efficient photochemical route to access palladium single atoms and clusters supported on silicoaluminophosphate-31 as a highly active and selective catalyst for hydrodeoxygenation of vanillin under mild conditions. Experimental and characterization results reveal the high activity originates from the synergistic effect of the positively charged palladium single atoms and fully exposed clusters, along with the strong metal-support interactions.
Published: 9 September 2021

Li Wang1, Xiaoping Yue1, Qizeng Sun1, Linrong Zhang1, Guozhang Ren1, Gang Lu1 (✉), Hai-Dong Yu1,2 (✉), and Wei Huang1,2 (✉)

This review has discussed the materials, device configurations, fabrications, and applications of flexible organic electrochemical transistors (OECTs). Thanks to the advantages of high sensitivity, simple device architecture, low working voltage, and high stability in liquids, flexible OECTs have been developed intensively for the real-time detection of many analytes, including ions, lactate, glucose, dopamine, DNA, bacteria, and cells.
Published: 5 October 2021

Andrian V. Kuchuk1 (✉), Fernando M. de Oliveira1,2, Pijush K. Ghosh3, Yuriy I. Mazur1, Hryhorii V. Stanchu1, Marcio D. Teodoro2, Morgan E. Ware1,3, and Gregory J. Salamo1

A self-checking approach to correlate the Raman frequency shift and strain, which is based on the lattice coherency at the interfaces of the SL’s epitaxial layers and should be valid for a wide range of materials was developed.
Published: 13 September 2021

Jinghan Wang1,2, Shanqing Gao1, Xiao Wang3, Haozhen Zhang1, Xitong Ren1, Juewen Liu2 (✉), and Feng Bai1 (✉)

The functional manganese phthalocyanine nanocrystals have different structures through noncovalent self-assembly confined within micro-emulsion droplets, using manganese phthalocyanine (MnPc) possessing a metal-N-C active center as building block. These nano-assemblies exhibit shape dependent peroxidase (POD)-like catalytic activities, because the emulsifier and MnPc co-mixed assembly reduced the close packing between MnPc molecules and exposed more active sites. The assemblies show higher catalytic activity only emerged under the acidic tumor-like microenvironment, which causes less damage to normal tissues in biomedical applications.
Published: 29 September 2021