APPLIED CATALYSIS B-ENVIRONMENTAL
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2024
·
IF 20.2
Yanyan Liu,Huanhuan Zhang,Jingjing Zhou,Shuyan Guan,Ruofan Shen,Wenbo Zhang,Xia Sheng,Lixia Wang,Xianji Guo,Xianli Wu,Jianchun Jiang,Baozhong Liu,Yongfeng Wang,Baojun Li
Proclaiming the interfacial active sites of non-noble metals on supported catalysts is a paramount topic. Herein, a spin-cross interface (Co(OH) x P y (x/y=3.2)) in the intimate region between Co(OH) 2 and CoP is designed by in situ hydroxylation and P-inducing strategy. An ultra-high catalytic hydrogen generation activity with a turnover frequency of 1640 min −1 is achieved for hydrolysis of ammonia borane (NH 3 BH 3 ). Both experimental observations and computational simulations reveal that the spin-cross interface dramatically reduces the energy barriers for the dissociation of reactant molecules (NH 3 BH 3 and H 2 O) to expedite the catalytic activity . The coexistence of active interface and MXene create the ensembles of Co atoms coordinated by OH and P. The construction of active sites of Co(OH) x P y simultaneously boosts the adsorption and dissociation of H 2 O and NH 3 BH 3 molecules. This research provides new paradigm for the rational design of spin-induced catalysts in the future energy system depending on the activation of multi-molecules.
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高影响因子
Nanoscale
·
2024
·Vol. 16
·期 36
·16933-16941
·
IF 5.8
Xinyu Feng,Siwen Zhang,Jiazhuo Li,Yingfang Hu,Rongyuan Ge,Yaowen Shi,Yali Yao,Bosi Yin,Tianyi Ma
Ni3(NO3)2(OH)4 has a high theoretical specific capacitance, low cost, and environmental friendliness, making it a promising electrode material. Specifically, Ni3(NO3)2(OH)4 electrodes have a larger layer spacing (c = 6.898 Å) than Ni(OH)2 electrodes since NO3− has a much larger ionic radius than OH−. The larger layer spacing stores more electrolyte ions, significantly improving the electrochemical activity of the electrodes. Additionally, the interlayer NO3− can enhance the structural stability of Ni3(NO3)2(OH)4. However, since Ni3(NO3)2(OH)4 has a higher molar mass than Ni(OH)2, it has a lower theoretical specific capacity. Consequently, Ni3(NO3)2(OH)4 has not been used in zinc-based alkaline batteries. Studies showed that doping could enhance the electrochemical performance of electrode materials. Therefore, this study used a simple solvothermal reaction to synthesize yttrium-doped Ni3(NO3)2(OH)4 (Y-Ni3(NO3)2(OH)4), assembling a Y-Ni3(NO3)2(OH)4//Zn battery for electrochemical testing. Y-Ni3(NO3)2(OH)4 served as the cathode in the battery. The analysis of Y-Ni3(NO3)2(OH)4 showed that yttrium (Y) doping increased the specific surface area and pore size of Ni3(NO3)2(OH)4 significantly. The increased specific surface area improved the active material utilization, and the abundant mesopores facilitated OH− transport, substantially enhancing the battery's specific capacity and energy density. Ultimately, the specific discharge capacity of the advanced Y-Ni3(NO3)2(OH)4//Zn battery reached 177.97 mA h g−1 at a current density of 4 A g−1, nearly doubling the capacity of the earlier Ni3(NO3)2(OH)4//Zn battery (103.59 mA h g−1).
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PubMed
高影响因子
Surfaces and Interfaces
·
2025
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IF 6.3
Yu Yang,Zhikun Xu,Tianle Li,Xinzhi Ma,Shuangyan Lin
The development of versatile oxygen evolution reaction (OER) electrocatalysts for ampere-level seawater electrolysis holds enormous promise for clean energy generation. Still, it is hindered by the competing chlorine evolution and severe chloride corrosion. Herein, the V and Fe dual-doped Ni 3 S 2 /Ni(OH) 2 (VFe-Ni 3 S 2 /Ni(OH) 2 ) heterostructure was fabricated on nickel foam as an OER catalyst for direct seawater electrolysis. The dual-doping of V and Fe optimizes the electronic structure cooperatively, improves conductivity, and enriches active sites of Ni 3 S 2 /Ni(OH) 2 , boosting OER performance at ampere-level current density. The optimal electrode V 0.03 Fe-Ni 3 S 2 /Ni(OH) 2 requires only 385 mV overpotential to arrive 1 A/cm 2 and works stably for over 100 h at 100 mA/cm 2 in seawater electrolyte. The assembled electrolyzer V 0.03 Fe-Ni 3 S 2 /Ni(OH) 2 ||Pt/C exhibited a cell voltage of 1.52 V at 10 mA/cm 2 with a noteworthy stability of 100 h at 100 mA/cm 2 for seawater electrolysis, providing huge potential for hydrogen production from seawater.
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高影响因子
ACS Applied Energy Materials
·
2025
·
IF 5.5
Ye Gao,Aihua Yan,Huaqi Yuan,Fei Huang,Zigao Su,Wenxue Zhao,Jixu Zhang,Bolei Hui,Heng Wang
Artificial regulation of the charge transfer pathway is an effective strategy for optimizing the charge dynamics and enhancing the photocatalytic hydrogen production. Herein, MoS2/Sv-ZnIn2S4/Ni(OH)2 composites were synthesized by an in situ structure-tailored technique. Systematic investigations confirmed the existence of sulfur vacancy (Sv), Ohmic-type MoS2/Sv-ZnIn2S4 junction, and p-n-type Sv-ZnIn2S4/Ni(OH)2 heterojunction in MoS2/Sv-ZnIn2S4/Ni(OH)2 composites. Specifically, n-type MoS2 and p-type Ni(OH)2 acted as the electron transport layer and hole transport layer, which not only achieved the carrier spatial separation and directional charge transfer but also suppressed the carrier recombination and enhanced the hydrogen reduction reaction dynamics. As a result, the optimized composites displayed an outstanding photocatalytic H2-releasing rate of 12.34 mmol·g–1·h–1, which was 5.96 times higher than that of pristine ZnIn2S4. This work provides an unusual opinion for developing the multichannel-modification photocatalysts with a controllable charge transfer route.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Yang Sun,Fan Yang,Siyuan Sun,Kexin Wei,Ye Wang,Guang Ma,Junpu An,Junwei Yuan,Meitong Zhao,Jiahui Liu,Hongchen Liu,Yongfeng Li
Developing high-performance and low-cost electrodes for hydrogen and oxygen evolution reactions (HER and OER, respectively) represents a pivotal challenge in the field of water electrolysis. Herein, W doped NiFe LDH nanosheets (NiFe-W x /NF) were immobilized on nickel foam (NF) through one-step corrosion engineering, which induced the coexistence of α-Ni(OH) 2 and β-Ni(OH) 2 . The doping of large atomic radius W influenced the growth of crystal planes of Ni(OH) 2 , promoting the formation of α-Ni(OH) 2 , which results in large layer spaces and neatly arranged nanosheets structure. The optimized NiFe-W 0.5 /NF catalyst require potentials of only 69 to attain 10 mA/cm 2 for HER, and require overpotentials of 269 mV to reach 100 mA/cm 2 current density for OER, respectively. The W 6+ with high oxidation state can withdraw neighboring electrons from Ni, altering the adsorption energy of hydrogen intermediates, which improves the Volmer step and electrical conductivity in HER. And the large layer space of α-Ni(OH) 2 in NiFe-W 0.5 /NF can be contributed to accelerating the formation of high valence γ-NiOOH, which can accelerate OER kinetics. In addition, the NiFe-W 0.5 /NF catalyst also provides an overall water splitting activity of 780 mA/cm 2 current density at a cell voltage of only 1.90 V, and remains highly stable for over 70 h at 100 mA/cm 2 , which makes it a bifunctional efficient catalyst for water electrolysis.
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PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Zhengtao Xu,Chen Wang,Zhuangzhuang Zhao,Yuxin Zhang,Yao Ying,Juan Li,Liang Qiao,Jingwu Zheng,Shenglei Che,Jing Yu
Theranostic probes that integrate diagnosis and treatment together are considered as effective tools for individual therapy. However, the separation of detection and treatment components limits precise assessment of therapeutic efficacy. Herein, a novel self-monitoring probe that sensitively responds to adenosine triphosphate (ATP) was developed by ultrafine iron oxide nanowires (UIONWs) through an oleyl amine-assisted way. The UIONWs, with a diameter of 1.5 nm and length of 75 nm, are surface-coordinated with oleyl amine. UIONWs can be decomposed in ATP-containing solution and expose the shielded iron ions. Consequently, it can boost the peroxidase (POD) activity and activate the T 1 -magnetic resonance imaging (MRI) signal by ATP. In addition, UIONWs can be rapidly engulfed into cells due to the high aspect ratio. The improved ATP and hydrogen peroxide (H 2 O 2 ) within tumor cells leads to higher hydroxyl radicals (OH) generation for effective tumor inhibition.In contrast, normal cells exhibit lower ATP and H 2 O 2 levels, reducing cytotoxicity and ensuring safety. Since both the illumination of T 1 -MRI and OH generation are ATP-controlled, this work raised a potential way to self-monitor tumor therapy with timely feedback on therapeutic effects.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Xiaohua Yang,Man Zhou,Yihang Tang,Jing Li,Lifu Zhou,Wentao Xu,Yao Xiao,Jin Zhao,Yuzhe Zhang,Zhongyu Li
Addressing global freshwater scarcity, solar-driven interfacial evaporation (SDIE) technology has garnered significant attention due to its sustainability and economic advantages. However, challenges including salt accumulation, substantial heat loss, and biofouling still persist when treating the water in nature. Herein, we developed a BM/BPMC Janus aerogel evaporator composed of a hydrophilic top layer and a hydrophobic bottom layer. This aerogel with a self-floating capability, reduced water evaporation enthalpy, enhanced anti-biofouling properties, salt resistance, and efficient thermal localization. Its hydrophilic top layer, fabricated by embedding MoS 2 @MWCNTs-OH within a bacterial cellulose (BC)/polyethyleneimine (PEI) matrix, exhibits synergistic photothermal-antibacterial functionality. The hydrophobic insulating bottom layer, constructed from silanized BC, achieves an ultralow thermal conductivity of 0.036 W·m −1 ·K −1 , enabling highly efficient thermal localization. Vertically aligned microchannels ensure rapid water supply and salt reflux. Synergistically, the positively charged surface of the hydrophilic layer also induces a Donnan effect, significantly enhancing system salt resistance. Furthermore, this cationic evaporator concurrently achieves highly selective adsorption of anionic dyes (>97.8 % removal for MO/CR). Hydroxyl/amino functional groups enriched within the hydrophilic layer markedly reduce evaporation enthalpy by lowering the activation energy of water molecules. Under 1 kW m −2 solar irradiation, the evaporator achieves a water evaporation rate of 2.78 kg·m −2 ·h −1 and an energy conversion efficiency of 113.2 %. This study presents a novel strategy for efficient desalination and synergistic contaminant removal in complex aqueous environments.
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高影响因子
DALTON TRANSACTIONS
·
2017
·Vol. 46
·期 32
·10620-10629
·
IF 4.029
Songsong Li,Dongsheng Dai,Lei Ge,Yangqin Gao,Changcun Han,Nan Xiao
Novel layer-like Ni(OH)2 co-catalyst-decorated ZnIn2S4 microsphere photocatalysts were synthesized for the first time via a facile in situ deposition method to boost the photocatalytic H2-production performance. The physical and optical properties of the as-prepared Ni(OH)2–ZnIn2S4 composite samples were characterized via X-ray diffraction (XRD), transmission electron microscopy (TEM), UV-vis diffusion reflectance spectroscopy (DRS), X-ray photoelectron spectroscopy (XPS), and surface photovoltage spectroscopy (SPV). The results indicate that the photocatalytic H2 evolution activity of the ZnIn2S4 microspheres under visible light irradiation significantly enhances by introducing inexpensive Ni(OH)2 as a co-catalyst. The 5 mol% Ni(OH)2–ZnIn2S4 sample shows the highest H2-production rate of 8.35 mmol g−1 h−1, which is 18 times higher than that of pure ZnIn2S4. Moreover, photocatalytic activity of the Ni(OH)2–ZnIn2S4 sample remains stable even after 4 cycling photocatalytic experiments. In addition, a possible mechanism on the enhanced photocatalytic activity was proposed and verified by surface photovoltage spectroscopy.
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高影响因子
Small
·
2021
·Vol. 17
·期 35
·2101720
·
IF 13.281
Yijie Wang,Aoshuang Li,Chuanwei Cheng
Developing highly active, cost-effective, and durable bifunctional oxygen electrocatalysts is an important step for the advancement of rechargeable Zn–air batteries (ZABs). Herein, an efficient bifunctional oxygen electrocatalyst of ultrathin Co(OH) 2 nanosheets supported on nitrogen-doped carbon nanoflake arrays (named as Co(OH) 2 @NC), is reported, which yields excellent bifunctional activity, i.e., a low overpotential of 285 mV to reach 10 mA cm −2 for oxygen evolution reaction (OER), a high half-wave potential (0.83 V) for oxygen reduction reaction (ORR), and a low potential gap (Δ E ) of 0.69 V. The excellent bifunctional catalytic performance can be ascribed to the concerted efforts of cobalt hydroxide toward OER and nitrogen-doped carbon for ORR. The Co(OH) 2 @NC nanoflake arrays is further used as binder-free air cathodes for rechargeable Zn–air batteries, exhibiting a high specific capacity of 798.3 mAh g Zn −1 , improved stability (a working life of >70 h at 5 mA cm −2 ), as well as a reduced long-term charging voltage, which outperforms the counterparts of NC nanoflake arrays and Pt/C-based air cathodes. One step further, the Co(OH) 2 @NC nanoflake arrays on carbon cloth are directly used as binder-free air cathodes for flexible, solid-state ZABs, showing excellent performance under deformation as well.
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高影响因子
Journal of Coatings Technology and Research
·
2019
·Vol. 16
·期 6
·1715-1725
·
IF 1.584
Yang Danqi,Zhang Chong,Dong Luming,Hou Xudong,Zheng Weikang,Xu Jianzhong,Ma Haiyun
A nanorod-structured strontium hydroxystannate [SrSn(OH) 6 ] flame retardant was synthesized via a facile coprecipitation method and employed in epoxy resin (EP). Based on X-ray diffraction analysis, scanning electron microscopy, and transmission electron microscopy, the as-synthesized SrSn(OH) 6 nanorods exhibited high crystallinity and uniform size distribution. The flame retardancy and smoke suppression properties of EP/SrSn(OH) 6 composites were investigated by limiting oxygen index and cone calorimetry tests. The results showed that incorporation of SrSn(OH) 6 led to a dramatic reduction of the fire hazards of EP, including a 21.9% maximum decrease in the peak heat release rate, a 33.3% reduction in the toxic CO yield, and a 133.3% increase in the char residue. In particular, this is the first attempt to evaluate the flame retardancy properties of SrSn(OH) 6 nanorods in EP. The improved flame retardancy properties of the SrSn(OH) 6 nanorods is attributed to their catalytic carbonization effect.
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高影响因子
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
·
2026
·
IF 5.9
Yong-Hu Ma,Zi-Yi Gao,Ying-Hong La,Fu Ma,Hong-Jian Zhao
First SnS 2 /Bi(C 2 O 4 )OH heterojunction via one-step hydrothermal method. • Sn–S–Bi bonds induce IEF for S-scheme charge transfer. • Oxygen vacancies and S-scheme synergy enhance redox ability and resist photocorrosion. • 94.3% TCH (15 mg/L) degraded in 30 min, 231-fold vs. SnS 2 . • 97.9% RhB (30 mg/L) degraded in 60 min, 17.2-fold vs. SnS 2 . This study reports the first construction of an S-scheme SnS 2 /Bi(C 2 O 4 )OH heterojunction via a one-step hydrothermal route. Combined X-ray diffraction (XRD) and Fourier transform infrared (FTIR) analyses confirm strong interfacial coupling rather than physical mixing, while scanning electron microscopy (SEM) reveals a distinctive “snow-on-petals” morphology, with SnS 2 nanoparticles uniformly dispersed on Bi(C 2 O 4 )OH nanosheets. X-ray photoelectron spectroscopy (XPS) further confirms the presence of Sn–S–Bi interfacial bonds, accompanied by localized electron redistribution, laying the chemical foundation for S-scheme charge transfer. Electron paramagnetic resonance (EPR) analysis reveals a notable increase in oxygen vacancy content. This enrichment of oxygen vacancies, together with the chemical bonding at the S-scheme heterojunction interface, synergistically suppresses SnS 2 photocorrosion. Ultraviolet–visible diffuse reflectance spectroscopy (UV–Vis DRS) shows substantially improved visible-light harvesting, and electrochemical impedance spectroscopy (EIS) and photocurrent measurements corroborate superior charge separation and transport efficiency. Interestingly, although the specific surface area of the composite (35.44 m 2 /g) is lower than that of pristine SnS 2 (103.24 m 2 /g), the composite exhibits markedly higher photocatalytic activity, indicating that the enhancement arises from interfacial charge transfer and electronic modulation rather than from surface area alone. Consequently, the 30%SnS 2 /Bi(C 2 O 4 )OH composite achieves 93.4% removal of tetracycline hydrochloride (15 mg L −1 ) within 30 min and 97.9% removal of rhodamine B (30 mg L −1 ) within 60 min, with apparent rate constants of 231 and 17.2 times those of pure SnS 2 . Radical scavenging tests identify ·O 2 − and h + as the dominant reactive species, while total organic carbon (TOC) analysis indicates a mineralization rate of 77.1% for TCH, confirming deep oxidation beyond mere decolorization. Coupled with liquid chromatography–mass spectrometry (LC–MS) elucidation of the degradation pathway, this work offers a new paradigm for the rational design of high-performance S-scheme heterojunctions through interfacial chemical bonding and defect engineering. Graphical : Photocatalytic Degradation Mechanism. Download: Download high-res image (243KB) Download: Download full-size image
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高影响因子
BIORESOURCE TECHNOLOGY
·
2026
·
IF 8.2
Mengjiao Fan,Maowen Qi,Yuxu Liu,Hongqin Ren,Yuchen Jiang,Baihong Li,Wenjian Liu,Shu Zhang,Yi Wang,Xun Hu
Convert K 2 CO 3 in filtrate in KOH by adding Ca(OH) 2 to simultaneously obtain CaCO 3 . • Superior cracking efficiency of KOH promotes the formation of micropores. • CaO as hard template facilitates generation of meso - and macropores, • Adding Ca(OH) 2 retains hollow honeycomblike structure in activated carbon (AC). • High mesoporosity and graphitic structure in AC determines tetracycline adsorption. Activation with K 2 C 2 O 4 generates K 2 CO 3 that could be recycled for second-round activation. However, activation with either K 2 C 2 O 4 or K 2 CO 3 produces activated carbon (AC) with mainly micropores. Herein, recycled K 2 CO 3 reacted with Ca(OH) 2 to generate KOH, CaO and CO 2 for activation of poplar, cellulose and lignin. The results indicated that K 2 CO 3 + Ca(OH) 2 showed superior cracking capability, generating AC from poplar with higher S BET (1822.1 versus 1179.4 m 2 /g with K 2 CO 3 or 1255.6 m 2 /g with K 2 C 2 O 4 ) and higher meso -porosity (43.3 % versus 10.0 % with recycled K 2 CO 3 and 3.1 % with K 2 C 2 O 4 ). This was due to strengthened activity for cracking with KOH and CaO, CO 2 for gasification, and CaO as a hard template. The in-situ DRIFTS characterization showed that K 2 CO 3 + Ca(OH) 2 interrupted dehydration of –OH, dehydrogenation of −C–H and even aromatization via cracking. The AC activated with Ca(OH) 2 /K 2 CO 3 showed the highest capability for tetracycline adsorption via monolayer mode, and membrane diffusion was the key rate-determining step. Download: Download high-res image (232KB) Download: Download full-size image
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高影响因子
危险品化学品经营许可证（带存储）