Nature Sustainability
·
2026
·
IF 32.1
Zou Xingyue,Zhang Jinzhe,Xie Jiawei,Dong Houyan,Zhou Bing,Dai Jie,Zhao Long,Wang Jiaxian,Zhan Guangming,Lian Wengao,Cao Xuelei,Liu Bingyan,Gu Xiang-Kui,Yao Yancai,Zhang Lizhi
Accelerating the global transition to sustainable green hydrogen requires highly efficient and durable industrial water electrolysis. However, the anodic oxygen evolution reaction remains a critical bottleneck. Conventional nickel-based catalysts suffer from high overpotential or rapid degradation. Here we overcome this limitation by introducing asymmetric Mo–Ni atom pairs with a shortened interatomic distance of 2.85 Å. This unique structural configuration enables an oxide path mechanism with direct O–O coupling that bypasses traditional scaling relations. Consequently, the catalyst delivers exceptional durability for over 2,000 h at an industrially relevant current density of 3 A cm −2 . When integrated into a laboratory-scale anion-exchange membrane water electrolyser, the anode exhibits low cell voltages of 1.78–1.95 V at 2–3 A cm −2 , alongside more than 1,200 h of stable operation at 3 A cm −2 . To demonstrate commercial viability, we integrate the catalyst into a 71 cm 2 per cell anion-exchange membrane water electrolyser stack, achieving hydrogen production with >99% purity while slashing energy consumption and production costs by 10–17% compared with commercial benchmarks. We further establish a mass-production line for these oxygen evolution reaction electrodes, proving their scalable manufacturing viability and potential to drive cost-effective, zero-emission fuel production at an industrial scale.
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2023
·
IF 7.2
Tao Deng,Changlei Qin,Zhiliang Ou,Hongqiang Xia,Zongze Lv,Zhonghui Zhang
Tar is a common by-product during the gasification of biomass and its presence largely limits the subsequent application of syngas generated. Although biomass tar could be converted into hydrogen-rich syngas by catalytic steam reforming , the frequently adopted high-activity and low-cost Ni catalysts suffer from the problem of easy deactivation as a result of carbon deposition , and more efficient and stable catalyst needs to be developed for tar removal in biomass gasification . In the work, various Ni/pyrochlore catalysts characterized with redox properties were constructed and further modified through partial replacement of A-site in support, and their reaction characteristics in toluene steam reforming were comprehensively investigated. Results show that catalysts of Ni/La 2 Ce 2 and Ni/Y 2 Ce 2 have good catalytic performance due to the strong interaction between Ni and pyrochlore. Although a small amount doping of Sr in A-site is observed to decrease Ni/pyrochlore interaction, the great promotion in surface oxygen mobility make Ni/La 1.8 Sr 0.2 Ce 2 possess the best reactivity among all catalysts studied, and the optimum operating conditions is determined to be 650 °C and S/C = 2. Moreover, Ni/La 1.8 Sr 0.2 Ce 2 is found to be very stable during toluene steam reforming, which is proved to be a result of the superior capability in resisting coke formation.
✓ 已验证
DOI
高影响因子
CRYSTENGCOMM
·
2016
·Vol. 18
·期 10
·1847-1853
·
IF 3.849
Jun-Qiang Bai,Wei Wen,Jin-Ming Wu
Because of the high specific surface area and enhanced charge migration, TiO2 with unique belt-like nanostructures finds promising applications in various fields such as photocatalysis, dye-sensitized solar cells, gas sensors, and Li-ion batteries. In the current study, a solution combustion procedure was firstly adopted to prepare a black water-proof precursor. The black precursor interacted with H2O2 at ambient temperature, achieving a precursor solution that is capable of fabricating hydrogen titanate (H2Ti2O5·H2O) nanobelt arrays on metallic Ti substrates at 60 °C. Subsequent calcination in air at 400 °C achieved arrays of ultrathin anatase TiO2 nanobelts of ca. 2–4 nm in thickness. The addition of nickel nitrate in the combustion solution achieved the Ni-doping into the resultant TiO2 nanobelts, which did not alter the nanobelt structure but significantly reduced the band gap from 3.2 eV to 2.9 eV. When compared with the commonly alkali-hydrothermal synthesized anatase TiO2 nanobelts, the present ultrathin nanobelts exhibited much improved photocatalytic activity when utilized to assist photodegradation of rhodamine B in water. The ultrathin nanobelt structure is believed to contribute to the high specific surface area, the much reduced charge migration path, and the enhanced charge transport along the longitudinal direction. The appropriate Ni-doping further enhanced the photocatalytic performance, because of the increased light harvesting efficiency and reduced charge recombination.
✓ 已验证
DOI
高影响因子
Nanoscale Advances
·
2020
·Vol. 2
·期 3
·1084-1089
·
IF 0
Shuli Yin,Ziqiang Wang,Chunjie Li,Hongjie Yu,Kai Deng,You Xu,Xiaonian Li,Liang Wang,Hongjing Wang
Rational design of Pt-based nanostructures with a controllable morphology and composition is vital for electrocatalysis. Herein, we demonstrate a dual-template strategy to fabricate well-defined cage-bell nanostructures including a Pt core and a mesoporous PtM (M = Co, Ni) bimetallic shell (Pt@mPtM (M = Co, Ni) CBs). Owing to their unique nanostructure and bimetallic properties, Pt@mPtM (M = Co, Ni) CBs show higher catalytic activity, better durability and stronger CO tolerance for the methanol oxidation reaction than commercial Pt/C. This work provides a general method for convenient preparation of cage-bell nanostructures with a mesoporous bimetallic shell, which have high promising potential for application in electrocatalytic fields.
✓ 已验证
DOI
PubMed
Journal of Materials Chemistry A
·
2017
·Vol. 5
·期 22
·11229-11235
·
IF 8.867
Jiahao Yu,Gongzhen Cheng,Wei Luo
Developing low-cost, highly efficient, and superior stable electrocatalysts for the oxygen evolution reaction (OER) is essential for upcoming renewable and clean energy systems. Here, 3D ternary nickel iron phosphide microflowers with a hierarchically porous morphology directly grown on Ni foam via a successive hydrothermal and phosphidation method are synthesized. Benefitting from their unique 3D hierarchical microflower-like structure and the strong electron interactions between Fe, Ni and P, the as-synthesized (NixFe1−x)2P catalysts can effectively catalyze the OER with an overpotential of 219 mV at a current density of 20 mA cm−2 in alkaline media, which is, to the best of our knowledge, the best among the reported non-noble metal-based catalysts.
✓ 已验证
DOI
高影响因子
IONICS
·
2022
·Vol. 29
·期 3
·1003-1011
·
IF 2.961
Jiang Guanghui,Liu Lei,Fei Zitong,Meng Qi,Zhang Yingjie,Dong Peng,Ouyang Quansheng,Ke Ding,Wang Jiqun,Yang Anqi
The large-scale lithium-ion batteries (LIBs) have begun to retire, and their disposal and reuse is a challenge. Herein, a regenerative and coating synergistic strategy is adopted to achieve the Li 3 PO 4 -coated and regeneration of LiNi 0.5 Co 0.2 Mn 0.3 O 2 material. The temperature was confirmed great influence to regenerate. The sample of 850 °C has the best cycle performance and rate performance, and the capacity retention rate is more than 80% after 100 cycles at 1 C. The recovery of material properties is due to structural repair and Li 3 PO 4 coating. The coating and regeneration strategy can be applied to the regeneration of other cathode materials and provides guidance for the treatment and reuse of waste LIBs electrolyte.
✓ 已验证
DOI
高影响因子
Scientific Reports
·
2017
·Vol. 7
·期 1
·1-11
·
IF 4.259
Lu Xinhuan,He Jie,Jing Run,Tao Peipei,Nie Renfeng,Zhou Dan,Xia Qinghua
Biocarbon supported Ni catalysts have been prepared by facile impregnation of Ni species by microwave-heating and used for selective hydrogenation of nitrobenzene to cyclohexylamine. These catalysts were characterized by X-ray diffraction, Raman spectra, N2 sorption measurement, X-ray photoelectron spectroscopy, temperature programmed reduction of H2 and H2 temperature-programmed desorption. The morphology and particle size of catalysts were imaged by scanning electron microscope and transmission electron microscope. For the hydrogenation of nitrobenzene to cyclohexylamine, 10%Ni/CSC-II(b) exhibits the best catalytic activity to achieve 100 mol% conversion of nitrobenzene and 96.7% selectivity of cyclohexylamine under reaction conditions of 2.0 MPa H2 and 200 °C, ascribed to high dispersion of Ni species and formation of nanosized Ni particles on the support aided by microwave-heating. Thus-prepared Ni/CSC catalyst is greatly activated, in which the addition of precious metal like Rh is totally avoided.
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2014
·Vol. 49
·期 20
·6944-6951
·
IF 2.305
Wang Yongjuan,Zhou Yuming,Zhang Tao,He Man,Bu Xiaohai
The biomolecule–inorganic hybrid materials are potential candidates for low infrared emissivity materials due to the combined functionalities of the biomolecules and the inorganic components. In this study, we describe a facile approach to fabricate DNA/layered double hydroxides (LDHs) nanohybrid by coassembly of exfoliated Ni–In LDHs nanosheets with DNA. In the assembly progress, exfoliated LDHs nanosheets and DNA with different initial DNA/LDHs mass ratio were mixed together, and the DNA intercalated LDHs nanohybrid was obtained only when the input DNA/LDHs mass ratio is ≤0.3 mg/mg. The structure and morphology of as-fabricated hybrid materials were characterized by X-ray diffraction (XRD), UV–Vis absorption spectra, Fourier transform infrared (FT-IR) spectra, thermogravimetry (TG), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The results indicate that the reassembled product has layered structures incorporated with DNA biomolecule. The nanohybrid with expanding LDHs structure of d
003 = 2.6 nm confirms the intercalation of DNA molecules into the LDHs interlayer. The helix chain oriented parallel to the basal plane of host layer forming ordered sandwich structure. The infrared emissivity value of the DNA/LDHs nanohybrid was then investigated. It was found that the infrared emissivity values were significantly reduced by coassembly of exfoliated LDHs nanosheets with DNA, which may be attributed to the synergistic effect and interfacial interaction between the DNA biomolecule and inorganic LDHs layers reinforced by the construction of ordered sandwich structure.
✓ 已验证
DOI
高影响因子
Crystals
·
2018
·Vol. 8
·期 11
·397
·
IF 2.144
Lingxiao Chen,Hang Liu,Linghao Liu,Yifan Zheng,Haodong Tang,Zongjian Liu
Ni nano-micro structures have been synthesized via a solution reduction route in the presence of ethylenediamine (EDA) under strong alkaline conditions. The phase composition, morphology, and microstructure of the resulting products are investigated by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The presence of EDA plays an important role in the formation of Ni nano-micro structures, and microflowers or microspheres assembled from nanosized horns can be produced by changing the amount of EDA. The size of Ni nano-micro structures is dependent on the NaOH concentration, and long chains assembled from Ni nano-micro structured microspheres can be obtained by reducing the amount of NaOH solution used. The role of both EDA and NaOH in the reduction of Ni (II) to Ni, as well as in the growth of Ni nano-micro structures, has been discussed, and a possible formation mechanism of these Ni nano-micro structures has been proposed based on the experimental results.Keywords:ethylenediamine;microspheres;nanohorns;nano-micro structures;nickel
✓ 已验证
DOI
高影响因子
JOURNAL OF THE ENERGY INSTITUTE
·
2019
·
IF 3.774
Yun-Peng Zhao,Fa-Peng Wu,Qing-Lu Song,Xing Fan,Li-Jun Jin,Rui-Yu Wang,Jing-Pei Cao,Xian-Yong Wei
In this work, a bimetallic catalyst of Pd and Ni supported on HZSM-5 was designed and evaluated in the hydrodeoxygenation of model compounds representing various C–O bonds in lignin. The effects of temperature, holding time, and initial H 2 pressure on the catalytic performance of the Pd–Ni/HZSM-5 catalyst were investigated. The results indicated that the Pd–Ni/HZSM-5 catalyst exhibited superior catalytic activity towards the conversion of the model compounds to alkanes compared to its monometallic counterparts. Direct cleavage of the C–O bond in DPE was achieved under low H 2 pressure, mainly producing benzene and minor amounts of phenol and cyclohexane, while at high H 2 pressure, the reaction pathway was altered towards hydrogenation of the benzene ring , followed by then cleavage of the C–O bond to afford only cyclohexane. Moreover, the Pd–Ni/HZSM-5 catalyst showed high activities when applying other substrates including anisole, veratrole, guaiacol, benzyloxybenzene, phenethyl phenyl ether, and dibenzyl ether.
✓ 已验证
DOI
高影响因子
Engineering
·
2021
·
IF 7.553
Xinyu Cao,Tiancheng Pu,Bar Mosevitzky Lis,Israel E. Wachs,Chong Peng,Minghui Zhu,Yongkang Hu
Reductive pretreatment is an important step for activating supported metal catalysts but has received little attention. In this study, reconstruction of the supported nickel catalyst was found to be sensitive to pretreatment conditions. In contrast to the traditional activation procedure in hydrogen, activating the catalyst in syngas created supported Ni nanoparticles with a polycrystalline structure containing an abundance of grain boundaries. The unique post-activation catalyst structure offered enhanced CO adsorption and an improved CO methanation rate. The current strategy to tune the catalyst structure via manipulating the activation conditions can potentially guide the rational design of other supported metal catalysts.
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2019
·
IF 8.456
Wei Gu,Qingyu Dong,Lei Zheng,Ya Liu,Yayun Mao,Yanfei Zhao,Wenchuan Duan,Hongzhen Lin,Yanbin Shen,Liwei Chen
Ni-rich layered oxides, such as LiNi0.8Co0.1Mn0.1O2 (NCM811), are considered as promising cathode materials for lithium-ion batteries due to their high energy density. However, Ni-rich layered oxides are prone to react with water and carbon dioxide in ambient air forming residual lithium compounds, resulting in deterioration of electrochemical performance and bringing a challenge to the cathode electrode preparation. In this work, we have, for the first time, demonstrated that the chemical stability of the NCM811 material in ambient air can be significantly enhanced by passivating the surface with a hydrophobic self-assembled monolayer (SAM) of octadecyl phosphate (OPA). As a result, the degradation reaction between the NCM811 material and ambient air and thus the electrochemical performance deterioration were significantly suppressed during ambient air exposure. Specifically, the 5C-rate capacity retention deterioration of the NCM811 sample during 14-day ambient air exposure has been decreased from 12 to 2% by OPA passivation. Furthermore, the 200-cycle capacity retention deterioration of the NCM811 sample after 7-day ambient air exposure has been improved from 23 to 0.7% by OPA passivation. These results are very important for the practical application of Ni-rich oxide since no need for controlling of humidity is required on the cathode manufacture; thus, the cost can be reduced. The concept of molecular self-assembly on the NCM811 material also open vast possibilities to design reagents for surface passivation of Ni-rich layered oxides.
✓ 已验证
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）