Advances in designing efficient electrocatalysts for nitrate reduction from a theoretical perspective

Man Qiao, Dongdong Zhu* (朱冬冬, 南京信息工程大学) and Chunxian Guo* (郭春显, 苏州科技大学)

👉 The electrochemical nitrate reduction reaction to ammonia (eNO₃−RR) is a potential way for harmonizing the nitrogen cycle. This feature article summarizes the recent advances in electrocatalyst design for the eNO₃−RR from a theoretical perspective.

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Heterogeneous catalysis of methane hydroxylation with nearly total selectivity under mild conditions

Geqian Fang, Wenjun Yu, Xiaodong Wang and Jian Lin* (林坚, 中国科学院大连化学物理研究所)

👉 Recent advancements in methane hydroxylation catalysis have achieved nearly total selectivity. A deeper understanding of catalyst design, reaction mechanism, and parameter optimization is crucial for minimizing CO₂ and boosting oxygenate yield.

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Recent advances in catalytic enantioselective construction of monofluoromethyl-substituted stereocenters

Bo-Jie Li, Yu-Long Ruan, Lei Zhu* (朱磊, 湖北工程学院), Jian Zhou* (周剑, 华东师范大学) and Jin-Sheng Yu* (余金生, 华东师范大学)

👉 This feature article comprehensively summarizes the recent advances in catalytic enantioselective construction of monofluoromethyl-substituted stereocenters.

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A ternary composite nanofiber-derived thin membrane electrolyte for solid-state Li metal batteries

Xiaoqi Gong, Yaozheng Pan, Linfeng Zhong, Jiasheng Wang, Fujie Liu, Guangsheng Qi, Jing Li, Cong Liu* (中山大学) and Dingshan Yu* (余丁山, 中山大学)

👉 We develop a novel membrane electrolyte comprising h-BN-doped PEO modified PVDF-HFP-nanofibers with high ionic conductivity (3.3 × 10⁻⁴ S cm⁻¹) and Li⁺ transference number (0.74), endowing solid LiFePO₄//Li batteries with excellent cyclability.

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Cobalt-catalyzed dithiolation of unactivated alkenes with thiols: facile access to diverse vicinal dithioethers

Jing Shi, Qian Xiao* (肖潜, 韩山师范学院) and Jian-Ji Zhong* (钟建基, 汕头大学)

👉 A simple cobalt-catalytic aerobic approach for the direct dithiolation of unactivated alkenes with thiols has been established, enabling efficient access to symmetric and unsymmetric vicinal dithioethers under mild reaction conditions.

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Blue photoluminescence of wide-bandgap polystyrenesulfonate materials

Wenqian Zhang, Lu Wan, Dehua Yang* (杨德华, 河北大学), Jianxin Guo, Xin Zhou, Xiaoyang Yuan, Xuan Chang, Cuili Zhang and Jianhui Chen* (陈剑辉, 河北大学)

👉 Blue photoluminescence (PL) was observed in polystyrene sulfonic acid solution (PSS) for the first time. And the diversity and tunability of its PL properties were revealed.

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Copper-catalyzed perfluoroalkylation of propargyl gem-dichlorides

Bosheng Liu, Jinxu Dong, Qi Zhu, Jundong Zhang, Jian Huang, Shiwen Liu and Xiaojun Zeng* (曾小军, 南昌大学)

👉 A highly efficient copper-catalyzed protocol was presented for transforming propargyl gem-dichlorides into the corresponding chloro-substituted fluoroalkylated allenes. This protocol demonstrates a broad substrate scope and excellent tolerance towards various functional groups. Moreover, the strategy of utilizing the chloro-substituted pentafluoroethylation allenes for multiple transformations has shown significant value in synthetic chemistry.

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Polyoxometalate-incorporated NiFe-based oxyhydroxides for enhanced oxygen evolution reaction in alkaline media

Yuyan Qiao, Yanqiu Pan, Wenjun Fan* (中国科学院大连化学物理研究所), Guifa Long* (广西民族大学) and Fuxiang Zhang* (章福祥, 中国科学院大连化学物理研究所)

👉 Polyoxometalates was in situ incorporated into NiFe oxyhydroxides to form a homogeneous/heterogeneous hybrid material, which induces the electronic interaction between Ni, Fe and Mo sites, as revealed by a variety of characterization experiments and theoretical calculations. The resulting hybrid electrocatalyst delivers a low overpotential of 203 mV at 10 mA cm⁻² and a TOF of 2.34 s⁻¹ at 1.53 V in alkaline media. This work presents a critical step towards developing high-performance OER catalysts by constructing metal–POM hybrids.

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Nitrogen fixation by alkali and alkaline earth metal hydrides assisted by plasma

Han Wu, Kai Ma, Jiaqi Wen, Liang Yang, Yeqin Guan, Qianru Wang, Wenbo Gao, Jianping Guo* (郭建平, 中国科学院大连化学物理研究所) and Ping Chen

👉 The chemical behaviors of alkali and alkaline earth metal hydrides including LiH, KH, MgH₂, CaH₂, and BaH₂ under nitrogen plasma differ significantly from one another, exhibiting an ammonia production trend that contrasts with that observed under thermal conditions. A prominent feature of KH is its ability to facilitate plasma-assisted N₂ fixation without generating H₂ byproduct, showing high atomic economy in utilization of hydride ions for N₂ reduction.

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Molten-salt-induced structural heterogeneity of carbon nitride for efficient photocatalytic H₂O₂ production

Yonghai Wang, Hui Zhang* (张慧, 常州大学), Deming Wei, Li Shangguan, Yu Guo and Jianhua Sun* (孙建华, 常州大学)

👉 A molten-salt-induced structural heterogeneity strategy was developed to construct molecular heterostructured carbon nitride with intimately connected heptazine and triazine units, which effectively accelerate charge transport and suppress carrier recombination. Consequently, the prepared CN^-2 exhibits significantly enhanced photocatalytic H₂O₂ production, about 143 times that of traditional carbon nitride.

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Covalently grafting a covalent organic framework onto carbon nanotubes as a bifunctional electrocatalyst for overall water splitting

Hongwei Li, Qizhe He, Yunye Cao*(宁波大学), Lei Lei, Degao Wang* (汪德高, 中国科学院宁波材料技术与工程研究所) and Ting-Ting Li* (李婷婷, 宁波大学)

👉 A simple strategy was proposed to fabricate a composite material consisting of amino-functionalized carbon nanotubes (NCNTs) grafted with a covalently bonded Ni(II)-based covalent organic framework (COF) for electrocatalytic water splitting. The resulting electrocatalyst demonstrates remarkable catalytic efficiency in both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) under alkaline conditions.

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