JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
·
IF 9.6
Jiankun Li,Shang Wu,Quanlu Yang,Huize Zhang,Chenxu Zhu,Xiaoyi Meng,Xiaojun Yang,Qiong Su,Shuhe Kang,Juzhen Kang,Wei Lan
HS-FeNi-BNC is synthesized via B-bridging, with hollow porous carbon and Fe-B-Ni diatomic sites. • Fe-B-Ni bridge enables p-d hybridization to tune metal sites' electronic structures. • HS-FeNi-BNC delivers exceptional ORR/OER/HER electrocatalysis in alkaline media. • HS-FeNi-BNC-based ZABs operate from −10 to 60 °C with 92.9% Zn utilization efficiency. Rechargeable zinc-air batteries (ZABs) require efficient electrocatalysts to boost the sluggish oxygen reduction reaction (ORR)/ oxygen evolution reaction (OER) kinetics at the air cathode. However, designing high-activity catalysts faces considerable challenges due to spatial and electronic constraints. Herein, a boron-doped hollow spherical porous carbon (HS-FeNi-BNC) anchored with Fe-B-Ni diatomic sites is prepared via a facile B-bridging strategy, realizing the regulated construction of heteroatom doping and diatomic active sites. HS-FeNi-BNC possesses abundant micropores/mesopores, uniformly dispersed Fe Ni diatomic centers (0.27 nm spacing) with a Fe-B-Ni bridge structure, and topological carbon defects induced by B/N co-doping. HS-FeNi-BNC exhibits exceptional trifunctional electrocatalytic performance in alkaline electrolytes, with an ORR E 1/2 of 0.864 V, an OER overpotential of 308 mV and a hydrogen evolution reaction (HER) overpotential of 301 mV at 10 mA cm −2 . HS-FeNi-BNC-based ZABs achieve an outstanding wide-temperature operating range of −10 °C to 60 °C, a specific capacity of 761.51 mAh g −1 and a Zn utilization efficiency of 92.9%, outperforming Pt/C + RuO 2 -based ZABs. Density functional theory (DFT) calculations reveal that the Fe-B-Ni bridge structure triggers p-d orbital hybridization, regulating metal site electronic structures, optimizing reaction intermediate adsorption and accelerating interfacial electron transfer. This work advances the development of high-efficiency heteroatom-modified non-noble metal multifunctional catalysts. Download: Download high-res image (207KB) Download: Download full-size image
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ACS Catalysis
·
2026
·
IF 13.6
Yuhao Zhang,Chengrang Leng,Jing Zhang,Zhujun Li,Haixin Sun,Youcai Che,Baojie Li,Jingqiu Shang,Shuowen Bo,Xiuxiu Zhang,Shi He,Qinghua Liu
The structure and dynamics of interfacial water are pivotal in governing the kinetics and stability of electrocatalytic reactions, yet their targeted manipulation to resolve the persistent activity‒stability trade-off in acidic oxygen evolution reactions (OERs) remains a formidable challenge because of the elusive relationships among water networks, intermediates, and metal-site states. Herein, we developed a rational template-mediated Cr-promoted oxidation method to synthesize ultrafine Cr-doped RuO2 nanoparticles with precision. Cr dopants anomalously reside in an octahedral environment analogous to that of corundum-type Cr2O3 within the host rutile-type RuO2, a configuration stabilized by its favorable oxidation state and well-matched ionic radius. By use of advanced multimodal in situ spectroscopy, we decoupled the co-evolution of metallic active sites and the interfacial aqueous environment. We reveal that the surface high-valence Lewis-acidic Cr sites deliberately reorient interfacial water into an oxygen-down configuration, generating an abundance of weakly hydrogen-bonded, pre-activated free hydroxyl (Free-OH) water—an interfacial motif in oxygen electrocatalysis. This Free-OH-rich environment supplies ample *OH intermediates for direct O−O coupling via the oxide path mechanism. Importantly, the potential-driven heterolytic cleavage of water at hydroxyl-trapping Cr sites dynamically supplies electrons to adjacent Ru sites, preventing their over-oxidation and ensuring structural stability. This work demonstrates interfacial water engineering as a transformative strategy to transcend conventional catalyst-centric design for stable and efficient acidic OER.
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APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Taotao Lv,Mengran Lou,Chunmei Xu,Yang Wang,Ruiying Wang,Hongtao Liu,Rui Liu,Xia Kong
The Cu/Fe-N@PCFs catalyst is prepared by electrospinning and pyrolysis. • Cu active species synergize with Fe-N@PCFs to boost the catalytic performance. • Cu/Fe-N@PCFs shows excellent ORR/OER activity with a low ΔE of 0.73 V. • Flexible Cu/Fe-N@PCFs achieves high peak power densities in ZAB and FZAB. The key to advancing Zn-air batteries (ZABs) and flexible Zn-air batteries (FZABs) lies in creating electrocatalysts with flexibility, porosity, high efficiency, and stability. Herein, Cu/Fe-N@PCFs is prepared by electrospinning and pyrolysis. Fe-ZIF-8 serves as a carbon and nitrogen source dispersing Fe sites, and promotes the formation of microporous structures during pyrolysis together with NaCl. Cu species are introduced onto the surface of Fe-N@PCFs to interact with Fe-N x sites and alleviate the Fenton-like effect, synergistically enhancing the bifunctional oxygen electrocatalytic performance toward oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). The fibrous structure improves the peak power density of ZAB and FZAB. The Cu/Fe-N@PCFs exhibits an ORR half-wave potential (E 1/2 ) of 0.865 V (vs. 0.838 V for Pt/C) and an OER overpotential of 370 mV (vs. 305 mV for RuO 2 ) at 10 mA cm −2 . The ZAB achieves a peak power density of 278.2 mW cm −2 (vs. 145.5 mW cm −2 for Pt/C + RuO 2 ) and durability of 190 h. The self-supporting Cu/Fe-N@PCFs is assembled as FZAB, delivering a peak power density of 82.4 mW cm −2 (vs. 16.4 mW cm −2 for Pt/C + RuO 2 ) and durability of 17 h. This study provides significant perspectives on constructing flexible catalysts, potentially advancing the development of ZABs and FZABs. Download: Download high-res image (266KB) Download: Download full-size image
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ACS Applied Materials & Interfaces
·
2026
·Vol. 18
·期 29
·39793-39801
·
IF 7.8
Chen Wengang,Cheng Haocong,Lyu Jiahui,Gong Lei,Chen Cheng,Jiang Zhijun,Sang Wei,Mu Shichun,Kou Zongkui
Pt-based alloy catalysts have been established as highly
active
and robust oxygen reduction reaction (ORR) electrocatalysts in the
practical proton exchange membrane fuel cell (PEMFC). Nevertheless,
fabricating such catalysts with low Pt loading via low-cost, solvent-free,
and size-controllable synthetic protocols remains an open space to
be explored. Herein, we combined an all-solid-state synthesis of ZIF-8
precursor with a direct confined pyrolysis for the uniform anchoring
of PtFe alloy nanoparticles on nitrogen-doped carbon derived from
ZIF-8 (PtFe/NC). The resulting PtFe/NC catalyst with only 1.59 wt
% Pt exhibits a remarkable half-wave potential of 0.897 V and a mass
activity of 2.34 A mg Pt –1 (@0.90 V, iR -free), outperforming commercial 20 wt % Pt/C (0.14 A
mg Pt –1 ) by a factor of 17. We have confirmed
that Fe doping can effectively restrict the growth of Pt particles.
Meanwhile, integrating Fe atoms into the Pt lattice results in a 3.6%
lattice compression, which correspondingly downshifts the d-band center
and optimizes the adsorption strength toward reaction intermediates,
thereby facilitating oxygen release and significantly enhances the
catalytic activity.
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ACS Applied Materials & Interfaces
·
2026
·Vol. 18
·期 31
·42780-42788
·
IF 7.8
Zou Lie,Huang Xiao-Yan,Zhang Yi,A Yao-Lin,Xu Qing-Chi,Chen Bing-Hui,Liu Jinxuan,Zhang Hua,Li Jian-Feng
Understanding the molecular origins of oxygen reduction reaction (ORR) activity on Pt-based catalysts is essential for the rational design of high-performance electrocatalysts. Herein, by combining electrochemical measurements with in situ shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS), we systematically investigate the ORR pathway on Pt-based alloy nanocatalysts incorporating different transition metals to elucidate how surface oxygenated intermediates dictate ORR activity. Among the catalysts examined, PtNi exhibited higher activity than PtFe, PtCo, and commercial Pt/C, underscoring the pronounced sensitivity of intrinsic ORR activity to alloy composition. Potential-dependent in situ Raman spectra, corroborated by isotopic labeling, directly identified *OOH as a key ORR intermediate and established a clear correlation between its vibrational frequency and catalytic activity. The results suggest that Ni alloying may modify the electronic environment of Pt, thereby weakening the Pt-O interaction, optimizing the adsorption state of the kinetically relevant *OOH intermediate, and consequently promoting ORR kinetics. This study establishes an effective spectroscopic platform for probing ORR intermediates on realistic electrocatalyst surfaces and offers molecular-level understanding of the activity enhancement in Pt-based alloy catalysts.
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DIAMOND AND RELATED MATERIALS
·
2026
·
IF 5.2
Yongzhi Zhao,Gengchen Bai,Wenhe Yu,Jianfang Liu,Baorui Jia,Xuanhui Qu,Mingli Qin
The development of efficient non-precious metal catalysts for the oxygen reduction reaction (ORR) is crucial for advancing sustainable energy technologies. Although single-atom Fe–N–C materials hold great promise, they are often limited by metal aggregation issues associated with conventional carbon supports. In this study, we propose a novel catalyst design that stabilizes Fe–N–C single-atom sites on a robust diamond-based matrix to fabricate a highly efficient electrocatalyst. With mild graphitization of the diamond surface to enhance its electrical conductivity during electrocatalytic processes, the Fe species are atomically dispersed and form coordinate covalent bonds with pyridinic N. In alkaline electrolyte, the Fe–N–D catalyst exhibits enhanced ORR activity, outperforming both pristine diamond and carbon black reference samples. Density functional theory (DFT) calculations reveal that the active Fe–N 4 –C configuration promotes kinetically efficient ORR by optimizing charge transfer and weakening the O O bond. This work integrates conductive sp 2 ‑carbon with a stable sp 3 -diamond core to establish a novel support for anchoring single-atom catalysts, providing a new substrate materials-design paradigm for electrocatalysis. Download: Download high-res image (124KB) Download: Download full-size image
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JOURNAL OF POWER SOURCES
·
2026
·
IF 8.4
Ruite Gu,Tingyu Yan,Zeyu Hao,Huanlu Tu,Shansheng Yu,Xiaoying Hu,Hongwei Tian
The preparation of highly efficient, stable, and cost-effective catalysts to address the complex oxygen reduction reaction (ORR) in zinc-air batteries remains a significant challenge. Herein, a surface modification strategy is employed to uniformly encapsulate an Fe-N-C matrix with cobalt-coordinated conjugated organic polymers containing Schiff base structures, successfully yielding a highly active CB(cobalt-coordinated Schiff-base polymer)@Fe-N-C composite catalyst with coexisting cobalt coordination polymers and iron-nitrogen-carbon structures. In alkaline electrolytes, the CB@Fe-N-C catalyst exhibits outstanding catalytic activity (E 1/2 = 0.93 V) and stability, which are attributed to its highly conductive, structurally stable composite architecture with abundant active sites. In a zinc-air battery (ZAB), CB@Fe-N-C exhibits remarkable power density, surpassing the Pt/C benchmark. This work offers an effective synthetic strategy for preparing electrocatalysts with excellent ORR performance in zinc-air batteries.
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APPLIED CATALYSIS B-ENVIRONMENTAL
·
2026
·
IF 19.7
Wenkang Miao,Ronghui Hao,Wanyin Xu,Zihan Wang,Wenxin Lin,Heguang Liu,Wei Ren,Qianqian Li,Runhai Ouyang,Anmin Nie,Jinsong Wu,Hongtao Wang
Single-atom catalysts (SACs) have shown exceptional performance in heterogeneous catalysis, yet their practical application remains hindered largely due to their susceptibility to sintering and subsequent deactivation under harsh reaction conditions. To address the instability, we focused on Cu SACs/Al 2 O 3 and developed a novel dynamic thermostability system by introducing the functional CeO 2 oxide that serves as oxygen reservoir to suppress the sintering. High stability of the Cu SACs was directly observed through in situ aberration-corrected environmental scanning transmission electron microscopy under both thermal oxidation and reduction conditions. Combining first-principles calculations, we revealed that the ultra-stable Cu SACs was achieved by the sustained lattice oxygen supply from reversible ultrasmall CeO 2 (2.25 nm) decomposition to form mobile O x -Cu species, which establishes a dynamic equilibrium between the catalytically active O-Cu and sintering-resistant O 2 -Cu monomers. We found this stabilization strategy by introducing the CeO 2 oxide as oxygen reservoir can be effectively extended to a broad range of SACs (Ag, Co, Pt, Fe, Ni) on 3 different oxide supports (ZnO, TiO 2 , SiO 2 ). We anticipate this strategy and insights can be helpful in designing highly active and stable SACs toward industrialization.
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Engineering
·
2026
·
IF 12.2
Chuanchuan Zhao,Xuehui Liu,Xinhao Chang,Shimei Xu,Xiang-Xin Xiao
The recycling of waste wind turbine blades is the most important part of the green, low-carbon, and circular development of the wind power industry chain. The matrix polymers in wind turbine blades are mostly epoxy resin (EP) characterized by a stable crosslinked structure, which is insoluble, non-melting, and resistant to natural degradation. Although some advanced chemical recycling methods demonstrate the ability to structurally deconstruct EP into value-retained oligomers and show great potential for upcycling, problems such as harsh reaction conditions and low utilization and value addition of the degraded products (DEP) still exist. Herein, we present an innovative catalytic oxidation system in which EP is completely degraded using only 4 wt% catalyst at 100 °C for 6 h. Furthermore, this methodology enables the selective cleavage of C‒O bonds in EP, yielding hydroxy-rich DEP. DEP can be completely and directly used as adhesives with an adhesive strength of 10.34 MPa, which exceeds that of commercially available adhesives and some adhesives prepared by copolymerization of fresh raw materials. Moreover, this adhesive is also resistant to acids and alkalis and is easy to remove. In addition, the reaction reagents, catalysts, and reinforcing fibers in the composites within the degradation system can all be recovered. In particular, the recovered catalysts can be recycled up to 5 times. This gentle, efficient, and green system not only has important reference significance for the sustainable development of the wind power industry but also provides new ideas for the design of high-strength adhesives.
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Nature Communications
·
2026
·
IF 18.1
Hu Xinge,Liu Jinjie,Zhu Zhijie,Liu Shuang,Wang Lei,Cheng Jianjun,Huang Xiong,Li Chaoran,Feng Kai,Zhou Yuxuan,Xu Yuqing,Feng Qianyue,Zhang Binbin,Chen Xiankai,Zhang Liang,Zhang Qingfeng,Wu Bo,Yin Jun,An Xingda,Zhang Xiao-Hong,He Le
Light-mediated electronic spin modulation possesses intriguing potentials for photochemistry, enabling on-demand customization of catalysts towards distinct reactions and catalytic requirements. However, the significant photobleaching of the transient spin transitions as well as their temporal mismatch with slower chemical reaction dynamics substantially hinders its applicability. Herein, we demonstrate light-driven steady-state and on-demand catalyst spin modulation that effectively activates plasmonic catalysis. The rapidly oscillating plasmonic electromagnetic near-field spin-polarizes a low-spin CoFe 2 O 4 catalyst and overcomes the photobleaching to produce stable high-spin states with astounding spin lifetimes >60 μs. The high-spin plasmonic catalyst effectively balances the tradeoff between spin polarization and carrier dynamics. For benchmark light-driven nitrate reduction catalysis, it achieves substantial photo-enhancement in ammonia production rate and selectivity as well as photocatalytic performance driven by sunlight, benefiting from polarization activation of nitrate reactant and preferential reaction pathway modulation. The highly generalized light-mediated strategy opens intriguing new avenues for on-demand and steady-state electronic spin engineering with profound implications for distinct disciplines.
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Nano-Micro Letters
·
2026
·Vol. 18
·期 1
·257
·
IF 38.5
Zhou Yin,Yin Kun,Zhang Tian,Feng Dongyu,Li Jiapei,Zhu Anquan,Lin Dewu,Xue Pan,Liu Yu,Liu Yongyu,Liu Kai,Liu Kunlun,Luan Chuhao,Yang Huawei,Chen Hou,Yao Yagang,Hong Guo
PtFe catalyst was rationally designed based on frontier molecular orbital theory to investigate orbital-level interactions for enhanced oxygen evolution reaction activity in Li–O 2 batteries.
The d z 2 – d z 2 orbital coupling between Fe and Pt leads to electron donation from Fe to Pt, increasing electron population in the Pt d z 2 orbital.
Excess electrons from the Pt d z 2 orbital occupy antibonding states with LiO 2 , weakening interaction strength and boosting oxygen evolution reaction kinetics.
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ACS Nano
·
2026
·
IF 17.3
Sixia Wang,Junyan Li,Yifan Liu,Ruru Zhang,Lei Chen,Zhe Yang,Jianfeng Zeng,Shuwang Wu,Mingyuan Gao
Boron neutron capture therapy (BNCT) has received significant attention due to its effectiveness in treating tumors. Preclinical and clinical studies have sought materials with a high boron content. Meanwhile, imaging-guided BNCT can not only enable the determination of the optimal neutron irradiation time and the required dose but also hold substantial significance for evaluating the therapeutic effects. Herein, iron borate (Fe2B2O5) nanobeams were synthesized via the thermal decomposition method. First, iron borate nanobeams are rich in boron, providing sufficient boron for BNCT. Second, the magnetic properties of the nanobeams enable enhancement of magnetic resonance imaging (MRI) contrast, facilitating the monitoring of the agent’s distribution. The size and morphology of the nanobeams can be tuned by varying the synthesis temperature, time, and precursor concentration. To enhance the colloidal stability and biocompatibility, the iron borate nanobeams were coated with a layer of silica (IBNBs@SiO2). The in vitro and in vivo experiments demonstrate that IBNBs@SiO2 functions as a T1 contrast agent. Furthermore, cells and mice treated with IBNBs@SiO2 followed by thermal neutron irradiation demonstrated the effective suppression of melanoma growth. Therefore, IBNBs have potential for MRI-guided BNCT.
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