Journal of Physical Chemistry Letters
·
2025
·
IF 4.6
Yuhui Sun,Junnan Han,Min Wang,Zhihuan Li,Zijie Lin,Shimin Chen,Zehui Zhang,Shijie Yang,Linwei Yu,Zhongwei Yu,Guangbin Zhang,Wei Li,Songke Mao,Hucheng Song,Jun Xu,Kunji Chen
The global energy crisis and unsustainable reliance on fossil fuels make it particularly urgent to develop efficient renewable energy storage solutions. Aqueous zinc–air batteries (ZABs) have become extremely promising candidates due to their low cost, abundant surface resources, inherent safety, and high theoretical energy density. This study explores the feasibility of using seawater as an electrolyte for ZABs, with the aim to reduce costs and alleviate competition for limited freshwater resources. Research results indicate that ZABs using seawater electrolytes with varying salinities (1.4–10%) show good bifunctional catalytic performance in the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) with defect-driven Co3O4–MoS2 bifunctional catalysts, while maintaining strong catalytic activity and stability in nonextreme salinity environments. The assembled ZABs with defect-driven Co3O4–MoS2 bifunctional catalysts display a charge–discharge voltage difference of less than 1.1 V, can stably operate for more than 360 cycles at a current density of 5 mA/cm2, and exhibit strong tolerance to halogen ions, with performance comparable to that of batteries using conventional deionized water-based electrolytes. These findings underscore the feasibility of seawater-based ZABs, breaking through the limitations of traditional deionized water-based electrolytes and expanding the application prospects of aqueous ZABs in the realm of sustainable energy storage.
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Nature Communications
·
2025
·Vol. 16
·期 1
·10075
·
IF 15.7
Jin Hao,Zhu Xuanqi,Zhang Mengsi,Zheng Hao,Chen Yang,Yao Dong,Liu Shuwei,Zhang Hao
Superoxide dismutase (SOD), featured with unique metal catalytic sites, is the first defense against reactive oxygen species (ROS) damage in vivo and well used in the treatment of oxidative stress-related diseases. However, the catalytic activity of natural SOD is limited by the metal ion coordination with rigid amino-acid residues. Inspired by the Cu 2+ /histidine residue coordination in Cu-Zn-SOD, in this work, the Gibbs free energy change of the break/reform of coordination bonds in the tetracoordinated structure formed by Cu 2+ and different groups in histidine is calculated, which reveals that in comparison to the Cu catalytic site coordinated with four imidazolyls, the coordination with one amino, one carboxyl and two imidazolyls possesses the lowest overall energy as well as the lowest breaking energy of one of the coordination bonds. Thus, catalytic site stability and catalytic reaction activity can be balanced sufficiently. Accordingly, the as-prepared Cu/Zn/histidine (CuZnHis) supramolecular assemblies with optimized Cu catalytic site present a significantly enhanced SOD activity up to 37900 Unit/mg, which is at least 5.4 times higher than that of natural Cu-Zn-SOD. As a proof of concept in treating oxidative stress-related diseases, the CuZnHis assemblies promote macrophage polarization from M1 to M2 phenotype and the expression of anti-inflammatory factors, and inhibit the periodontitis in male animal models.
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Nano Research
·
2024
·
IF 9.5
Lou Yue,Li Jiao,Li Xiaokun,Zhu Zhenyu,Shi Zhan,Xu Biao
Developing acid/base-resistant and low-price microwave-absorbing materials with lighter weight is highly desired for practical applications in extreme environments. Herein, we demonstrate the successful synthesis of the N-doped porous carbon (NC) material with hierarchical pore structure by the spray pyrolysis method. The large specific surface area (S BET = 707.53 m 2 ·g −1 ) of materials enables multiple scattering of incident electromagnetic waves, and N doping greatly enhances the electrical conductivity of the material. Notably, single-atom Zn can adjust the local electronic structure of adjacent sites such as carbon and nitrogen atoms, induce the center of polarization, and thus change the dielectric and electronic properties of the host material. The porous carbon coating of single-atom Zn avoids the deterioration of electromagnetic parameters caused by the accumulation of magnetic particles under high-temperature pyrolysis. At the same time, they can also be used in various complex environments, such as acidic and basic environments. Ultimately, NC-1000, with high surface area, low density, and good chemical stability, obtained a minimum reflection loss (RL min ) of −50.5 dB and an effective absorption bandwidth (EAB) exceeding 5.1 GHz at the thickness of 1.9 mm. After soaking in the strong acid and base solution, the electromagnetic wave absorption performance of the material decreased by < 15%. Widely available raw materials and a simple preparation scheme are expected to expedite industrial mass production for this novel type of materials.
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Small
·
2024
·Vol. 20
·期 38
·2402466
·
IF 13
Yibin Ren,Jianbo Li,Yi Zhang,Yunhui Huang,Zhen Li
Aqueous Zinc–sulfur (Zn–S) batteries are promising for the field of energy storage due to their low cost, high theoretical capacity, and safety. However, the large volume expansion and the inherently poor conductivity of sulfur would result in electrode cracking and sluggish reaction kinetics, limiting the practical application of Zn–S batteries. Herein, commercial zinc sulfide (ZnS) is employed instead of S as cathode and proposed a doping modification strategy to solve the above problems. The designed ZnS 0.93 Se 0.07 cathode shows good cycle stability and much-improved reaction kinetics, which is due to the smaller bandgap of ZnS 0.93 Se 0.07 (1.40 eV) compared to ZnS (1.86 eV). As a result, the obtained ZnS 0.93 Se 0.07 cathode exhibits a high specific capacity of 552 mAh g −1 (1672.6 mAh g −1 based on S) at 0.1 A g −1 and 330 mAh g −1 (1000 mAh g −1 based on S) at 2 A g −1 . Moreover, the ZnS 0.93 Se 0.07 cathode can provide a high areal capacity of 3.8 mAh cm −2 at a high mass loading of 10 mg cm −2 and limited electrolyte (4 µL mg −1 ). This work provides a simple and effective cathode modification strategy, which is conducive to promoting the practical application of Zn–S batteries.
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APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Dexu Zhang,Xiaoying Peng,Jie Zhang,Shixuan Zhu,Zhihong Xue,Shubin Xiong,Shuai Xiong,Bo Sheng,Yiqiang He,Guiming Peng,Jiadong Zhang
Graphitic carbon nitride (g-C 3 N 4 ) has become a favored universal photocatalyst. Despite its numerous advantages, the photocatalytic efficiency of g-C 3 N 4 is hindered by the substantial recombination of photoexcited charge carriers and holes. In this work, we demonstrate that Zn-doped tubular carbon nitride photocatalyst (Zn-tCN) can serve as highly efficient catalysts for H 2 O 2 photosynthesis. Mechanism studies confirm that the presence of Zn in g-C 3 N 4 prolongs the lifetimes of photogenerated carriers and inhibits their recombination, which triggers the reduction of O 2 to reaction intermediates ( O 2 − ), as supported by in situ electron paramagnetic resonance (EPR) spectroscopy. More importantly, sacrificial agent experiments coupled with in situ EPR results confirmed that the reaction mechanism involves a concerted two-electron transfer process. The optimal catalyst displays a H 2 O 2 productivity of 162.4μmol g –1 h −1 under visible-light irradiation without a sacrificial agent, which is 11.7 times higher than that of pristine g-C 3 N 4 (13.8μmol g –1 h −1 ). This work proposes a synthetic strategy for the preparation of high-performance Zn-doped g-C 3 N 4 , which offers insights and perspectives for developing highly active photocatalysts and deepening the understanding of photocatalytic mechanisms.
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Yuxiao Hu,Kai Zhang,Jiayin Shang,Qiguan Wang,Jiale Chen,Hong Deng,Yuxin Cui,Sumin Wang
Aqueous zinc-ion hybrid capacitors (ZIHCs) are an ideal candidate for energy storage resulted from their low cost and high safety. Nonetheless, their wide applications have been hindered by the sluggish migration kinetics of Zn 2+ , low activity and low structural stability of cathodes during prolonged cycles. Herein, we report a supermolecular route by using two small molecules (melamine and cyanuric acid) inhaled in the interlayered space of expanded graphite (EG) flakes, where they are self-assembled into N-containing supermolecules. After calcination at high temperature, the supermolecules sandwiched in EG are converted to N-containing carbon spherical nanoparticles (NCSN). The insertion of NCSNs enlarges interlayered distance and the nitrogen and oxygen groups on NCSN enhance Zn 2+ adsorption, which boosts the transfer dynamics of zinc ions. Meanwhile, the in-situ formed NCSNs enhance the specific surface area of EG. Thus the fabricated ZIHCs employing the NCSN inserted EG (NCSN@EG) as the cathode deliver a high specific capacity of 355.6 F g −1 with the energy density of 142.7 Wh kg −1 and power density high as 170.2 W kg −1 in the voltage range of 0–1.7 V. In addition, the in-situ formed NCSNs strengthen the stacked two-dimensional structure of EG as bridges, and after 30,000 cycles, the capacity retention rate is as high as 87.2 %.
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Carbon Energy
·
2024
·Vol. 6
·期 9
·e535
·
IF 19.5
Zhimin Niu,Yan Gao,Tianhui Wu,Fei Zhang,Ran Zhao,Zijia Chen,Yiming Yuan,Tifeng Jiao,Jianmin Gu,Li Lu,Desong Wang
Rechargeable neutral aqueous zinc−air batteries (ZABs) are a promising type of energy storage device with longer operating life and less corrosiveness compared with conventional alkaline ZABs. However, the neutral ZABs normally possess poor oxygen evolution reactions (OERs) and oxygen reduction reactions performance, resulting in a large charge–discharge voltage gap and low round-trip efficiency. Herein, we demonstrate a sunlight-assisted strategy for achieving an ultralow voltage gap of 0.05 V in neutral ZABs by using the FeOOH-decorated BiVO 4 (Fe-BiVO 4 ) as an oxygen catalyst. Under sunlight, the electrons move from the valence band (VB) of Fe-BiVO 4 to the conduction band producing holes in VB to promote the OER process and hence reduce the overpotential. Meanwhile, the photopotential generated by the Fe-BiVO 4 compensates a part of the charging potential of neutral ZABs. Accordingly, the energy loss of the battery could be compensated via solar energy, leading to a record-low gap of 0.05 V between the charge and discharge voltage with a high round-trip efficiency of 94%. This work offers a simple but efficient pathway for solar-energy utilization in storage devices, further guiding the design of high energy efficiency of neutral aqueous ZABs.
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LANGMUIR
·
2024
·
IF 3.7
Juan Zhang,Wanli Chen,Haijian Li,Fengqi Zhao,Jianhua Yi,Bo Jin,Rufang Peng
This research delves into the preparation of heteronuclear bimetallic catalysts and explores their catalytic properties in the thermal decomposition of ammonium perchlorate (AP). The study’s central focus is on enhancing the thermal decomposition characteristics of AP and, consequently, the combustion performance of composite solid propellants. The synthesized materials underwent structural characterization by XRD, XPS, SEM, and FTIR. Catalytic properties were examined using DTA tests. Notably, catalysts derived from calcination at 500 °C exhibited heightened catalytic activity. They advanced the pyrolysis temperature by 135.4 °C and reduced the activation energy by 82.38 kJ/mol compared with pure AP. To further elucidate the decomposition mechanism of AP, the investigation also employed a combined approach involving DSC-TG-FTIR-MS analysis.
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JOURNAL OF MATERIALS SCIENCE
·
2025
·
IF 3.9
Zhang YaXi,Liang Jin,Zhang Li,Zou FengYuan,Li YunFeng,Zeng ZiQuan,Lei Tian,Yang Guang
As a clean energy carrier, hydrogen necessitates efficient production via cost-effective, highly active non-noble metal electrocatalysts. Herein, we demonstrate a Zn-doped CoP heterostructure catalyst anchored on MXene-engineered nickel foam (MXene@ZnCoP/NF) through synergistic substrate engineering and compositional modulation. This design achieves exceptional alkaline hydrogen evolution reaction (HER) activity and superior overall water splitting efficiency. In 1.0 M KOH electrolyte, the MXene@ZnCoP/NF heterostructure exhibits exceptional HER performance, achieving a low overpotential of 15 mV at 10 mA cm −2 , 64 mV at 50 mA cm −2 , 214 mV at 500 mA cm −2 , and a Tafel slope of 86.0 mV dec −1 , indicative of rapid reaction kinetics. Furthermore, the catalyst demonstrates industrial-grade durability, maintaining stable operation for 65 h at 500 mA cm −2 without significant degradation. When integrated into a full-cell electrolyzer with RuO 2 /NF as the anode (RuO 2 /NF ||MXene@ZnCoP/NF), the system requires only 1.53 V to deliver a current density of 10 mA cm −2 , surpassing the performance of the noble metal system Pt-C/NF||RuO 2 /NF (1.61 V). This highlights its potential as a cost-effective alternative to noble metal-based electrocatalysts for scalable hydrogen production. The enhanced catalytic performance can be primarily attributed to the synergistic interplay of three key factors: the superior conductivity provided by MXene-engineered NF substrates, the Zn doping-induced crystalline-to-amorphous phase reconstruction, and the morphological transformation from micrometer-scale architectures to nanoscale structures. This study proposes an innovative “substrate–structure–composition” synergistic strategy that establishes a new paradigm for designing highly efficient non-noble metal HER electrocatalysts, thereby propelling the scalable industrial implementation of electrocatalytic water splitting for hydrogen production. Graphical abstract
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ADVANCED FUNCTIONAL MATERIALS
·
2022
·Vol. 32
·期 32
·2203471
·
IF 19.924
Daijie Deng,Junchao Qian,Xiaozhi Liu,Hongping Li,Dong Su,Henan Li,Huaming Li,Li Xu
Dual–single-atom catalysts with synergistic effect of adjacent atomic metal sites show a great potential for oxygen reduction reaction (ORR). Herein, a dynamical synthetic strategy is demonstrated for the rational design of dual-atom catalyst ((Zn, Cu) − NC) with non-covalent Cu and Zn sites as nitrogen-doped carbon as support. Owing to the non-covalent interaction of Zn and Cu atomic pair sites, (Zn, Cu) − NC exhibits significant performances for ORR, surpassing the catalysts with individual Zn or Cu site. The theoretical calculations reveal that (Zn, Cu) − NC can highly activate the linear O 2 molecule via the non-covalent interaction between Zn and Cu pairs, providing the more effective overlap between the metal 3d orbitals and O 2p orbital. Therefore, the ORR activity is optimized with the improvement of the adsorption configuration and adsorption energy of O 2 . Further, both liquid and quasi-solid zinc − air batteries with (Zn, Cu) − NC as air cathodes achieve remarkable energy density and stability. This research proposes a facile synthetic strategy to construct single-atom catalysts and presents an insightful understanding of the non-covalent interplay between heteronuclear metal atoms in dual-atom catalysts.
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Nano Energy
·
2022
·
IF 19.069
Ning Dong,Xuesong Zhao,Mengdie Yan,Hong Li,Huilin Pan
Intrinsic uneven Zn deposition-dissolution and hydrogen evolution reaction (HER) induce poor reversibility and limited cycle life of Zn anodes, which thus restrict the practical application of rechargeable aqueous Zn batteries . In this work, a synergistic strategy of porous indium (In) coating layer combined with a polyacrylamide (PAM) polymer layer for Zn anodes is proposed to provide large HER overpotential while facilitating fast and homogeneous Zn 2+ transport at the electrode-electrolyte interface. The corrosion reaction and Zn dendrite growth are simultaneously prevented at high utilization of Zn anodes. The optimal ZnIn-PAM electrodes demonstrate outstanding cycling stability at ultra-high current density and areal capacity (10 mA cm −2 , 10 mAh cm −2 , Zn utilization: 57%) for over 400 h, and long-term lifespan for over 1700 h at 5 mA cm −2 and 5 mAh cm −2 (Zn utilization: 28.5%) with only ∼50 mV overpotential. Coupled with electrolytic manganese dioxide cathode, the full cell delivers ultra-long lifespan of 10000 cycles with capacity decay rate of 0.006% per cycle at 5 C. This work provides useful perspective for exploring synergetic strategies to address the limited cycling stability of Zn metal-based aqueous batteries for practical use.
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ADVANCED MATERIALS
·
2025
·
IF 26.8
Xinyi Lv,Yuqin Su,Hengyang Xiang,Linxiang Yang,Xinrui Chen,Yifei Wang,Kun Zhang,Jiahao Tang,Yuhui Ye,Bo Cai,Xueying Ma,Xiaoyong Wang,Haibo Zeng
Perovskite quantum dots (PQDs) are expected to be an ideal candidate for wide-color gamut displays owing to their high color purity. However, their color purity is challenged by remarkable spectral broadening due to non-uniform size distribution and crystal defects. Here, a ligand-ion (TOP-Zn) complex-modulating nucleation strategy is proposed to depress spectral broadening. This is achieved by enhancing the steric hindrance effect during lead-halogen octahedral assembly and reducing the reaction activity/sites of the system. This strategy is universal and has been confirmed to be effective for blue, green, and red PQDs, achieving narrowed spectral full-width-at-half-maximum (FWHM) of 15, 17, and 25 nm, respectively. These FWHMs are record-breaking and contribute to a wide color gamut coverage of ≈130% National Television Standards Committee and ≈100% Rec. 2020 standard. Meanwhile, these PQD-based light-emitting diodes (PeLEDs) exhibit a high external quantum efficiency (EQE) of exceeding 20% at their pure color range. These results provide a feasible path to achieve ultra-uniform and pure-color luminescent PQDs for wide-color gamut displays.
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