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| 1 | Atomic Fe-Zn dual-metal sites for high-efficiency pH-universal oxygen reduction catalysis显示文摘An effective electrocatalyst being highly active in all pH range for oxygen reduction reaction(ORR)is crucial for energy conversion and storage devices.However,most of the high-efficiency ORR catalysis was reported in alkaline conditions.Herein,we demonstrated the preparation of atomically dispersed Fe-Zn pairs anchored on porous N-doped carbon frameworks(Fe-Zn-SA/NC),which works efficiently as ORR catalyst in the whole pH range.It achieves high half-wave potentials of 0.78,0.85 and 0.72 V in 0.1 M HClO4,0.1 M KOH and 0.1 M phosphate buffer saline(PBS)solutions,respectively,as well as respectable stability.The performances are even comparable to Pt/C.Furthermore,when assembled into a Zn-air battery,the high power density of 167.2 mWcm−2 and 120 h durability reveal the feasibility of Fe-Zn-SA/NC in real energy-related devices.Theoretical calculations demonstrate that the superior catalytic activity of Fe-Zn-SA/NC can be contributed to the lower energy barriers of ORR at the Fe-Zn-N6 centers.This work demonstrates the potential of Fe-Zn pairs as alternatives to the Pt catalysts for efficient catalytic ORR and provides new insights of dual-atom catalysts for other energy conversion related catalytic reactions. | Jie Xu Shuhua Lai Defeng Qi Min Hu Xianyun Peng Yifan Liu Wei Liu Guangzhi Hu Heng Xu Fan Li Chao Li Jia He Longchao Zhuo Jiaqiang Sun Yuan Qiu Shusheng Zhang Jun Luo Xijun Liu | 2021 | Nano Research2021，14，5： | 6 |
| 2 | Sorption of Triton X-100 on soil organic matter fractions:Kinetics and isotherms显示文摘Kinetics and isotherms of Triton X-100 sorption on soil,base-extracted soil(BE),humic acid(HA) and humin(HM) were investigated respectively to get better understanding on characteristics of the surfactant sorption onto different soil organic matters(SOMs).It was demonstrated that the kinetics results could be satisfactorily described by the pseudo-second order model.The half of the time to reach equilibrium(t1/2) for different sorbents followed the sequence of soil > HA > BE > HM.Furthermore,the calculated equilibrium sorption capacity(Ceq) was found in the sequence of HA > BE > HM > soil,which agreed well with the experimental results.The isotherms of Triton X-100 sorption on soil and HA could be well described by the S-type isotherm,but BE and HM by the L-type.The isotherms of all the four sorbents were found reasonably fitted to the Langmuir equation.The Kd value,defined as the ratio of Triton X-100 in sorbent and in the equilibrium solution for given concentrations,generally followed the order of HM > HA > soil > BE.Separated HM and HA showed high affnity for Triton X-100,but the HA and HM in soil and BE were tightly bounded by the minerals.Thus,the HA on the soil surface might dominate the sorption,whereas the bounded HM would play a key role upon the surfactants being penetrated inside the soil. | ZHANG Guangzhi HU Hao SUN Weiling NI Jinren | 2009 | Journal of Environmental Sciences2009，21，6： | 6 |
| 3 | Boron modulating electronic structure of FeN4C to initiate high-efficiency oxygen reduction reaction and high-performance zinc-air battery显示文摘The biggest challenge is to develop a low cost and readily available catalyst to replace expensive commercial Pt/C for efficient electrochemical oxygen reduction reaction(ORR).In this research,closo-[B_(12)H_(12)]^(2−)and 1,10-phenanthroline-iron complexes were introduced into the porous metal-organic framework by impregnation method,and further annealing treatment achieved the successful anchoring of single-atom-Fe in B-doped CN Matrix(FeN4CB).The ORR activity of FeN4CB is comparable to the widely used commercial 20 wt%Pt/C.Where the half-wave potential(E_(1/2))in alkaline medium up to 0.84 V,and even in the face of challenging ORR in acidic medium,the E_(1/2)of ORR driven by FeN4CB is still as high as 0.81 V.When FeN4CB was used as air cathode,the open circuit voltage of Zn-air battery reaches 1.435 V,and the power density and specific capacity are as high as 177 mW cm^(−2)and 800 mAh g_(Zn)^(−1)(theoretical value:820 mAh g_(Zn)^(−1)),respectively.The dazzling point of FeN4CB also appears in the high ORR stability,whether in alkaline or acidic media,E_(1/2)and limiting current density are still close to the initial value after 5000 times cycles.After continuously running the charge-discharge test for 220 h,the charge voltage and discharge voltage of the rechargeable zinc-air battery with FeN4CB as the air cathode maintained the initial state.Density functional theory calculations reveals that introducing B atom to Fe–N4–C can adjust the electronic structure to easily break O=O bond and significantly reduce the energy barrier of the rate-determining step resulting in an improved ORR activity. | Xue Zhao Xue Li Zenghui Bi Yuwen Wang Haibo Zhang Xiaohai Zhou Quan Wang Yingtang Zhou Huaisheng Wang Guangzhi Hu | 2022 | Journal of Energy Chemistry2022，31，3： | 6 |
| 4 | Theoretical analysis of the ship noise demodulation spectrum harmonic clan feature显示文摘到识别问题的轮船噪音解调光谱泛音氏族特征和相应应用的结构法律被理论推导和样品分析学习。以便认出推进器片数字,轮船推进器成穴噪音模型根据五个假设被建立。进一步,结构法律的数学表达式被模型推出。并且推进器片数字的类空格算术地被分析。结果能被使用作为专家知识指向识别。最后,实验样品的解调光谱泛音氏族被使用小浪包获得。结构法律被实验样品的统计分析验证。实验样品的统计平均结果与理论结构法律一致很好,这被显示出,并且 78.6% 样品基本上与理论结构法律一致。 | SHI Guangzhi HU Junchuan | 2007 | Chinese Journal of Acoustics2007，26，4： | 4 |
| 5 | Acoustic emission from gas-filled coal under triaxial compression显示文摘Acoustic emission(AE) experiments have been performed on gas-saturated coal specimens under conventional triaxial compression.The AE characteristics were investigated for a methane gas flow through the coal specimen.One AE parameter,AE count,when normalized by the total count number was used to represent the damage evolution in the gassy coal.It is shown that this AE parameter is a reasonable indicator for damage occurring within the coal specimen since its envelope has almost the same shape as the complete stress-strain curve,except for a short time delay.In addition,the change in AE count is highly consistent with the change in coal permeability.Test results also show that methane containing coal emits a small number of AE events before entering the yield stage.AE activity gradually increases during the yield process up to the peak stress.The lowest permeability corresponds to the highest AE activity,implying failure will soon occur.An AE based constitutive model was constructed and the theoretical results agree well with those of experiments. | Yin Guangzhi Qin Hu Huang Gun Lv Youchang Dai Zhixu | 2012 | International Journal of Mining Science and Technology2012，22，6： | 4 |
| 6 | PdNi/N-doped graphene aerogel with over wide potential activity for formic acid electrooxidation显示文摘Anti-CO poisoning ability is significant in formic acid oxidation in the fuel cell technique.Herein,Pd Ni alloy supported on N-doped graphene aerogel(Pd Ni/GA-N)was found to have catalytic ability toward formic acid electrooxidation over a wide potential range because of the improved anti-CO poisoning ability.This catalyst was fabricated by simple freeze-drying of mixture solution of graphene aerogel,polyvinylpyrrolidone,Pd^(2+)and Ni^(2+)and the subsequent thermal annealing reduction approach in the N2/H2 atmosphere.Pd-Ni alloy particles anchored over the folding N-doped graphene surface with a porous hierarchical architecture structure in the 3 D directions.It showed the catalytic performance of its maximum mass activity of 836 m A mg^(-1)in a broad potential range(0.2-0.6 V)for formic acid oxidation.The CO stripping experiment demonstrated its largely improved anti-CO poisoning ability with the peak potential of 0.67 V,approximately 60 and 40 m V less compared to those of Pd/GA-N and Pd/C samples.The high anti-CO poisoning ability and strong electronic effect resulting from the interaction between the3 D GA-N support and the Pd-Ni alloy makes it a promising catalyst for application in direct formic acid fuel cells. | Yufei Bao Meng Zha Pengliang Sun Guangzhi Hu Ligang Feng | 2021 | Journal of Energy Chemistry2021，30，8： | 3 |
| 7 | NiCo_(2)O_(4) hollow microsphere-mediated ultrafast peroxymonosulfate activation for dye degradation显示文摘Morphology and dispersity are key factors for activating peroxymonosulfate(PMS).In this study,we designed a recyclable open-type NiCo_(2)O_(4) hollow microsphere via a simple hydrothermal method with the assistance of an NH_(3) vesicle.The physical structure and chemical properties were characterized using techniques such as scanning electron microscope(SEM),transmission electron microscope(TEM),X-ray diffraction(XRD),N2 adsorption and X-ray photoelectron spectroscopy(XPS).The test results confirm that the inner and outer surfaces of open-type NiCo_(2)O_(4) hollow-sphere can be efficiently utilized because of the hole on the surface of the catalyst,which can minimize the diffusion resistance of the reactants and products.Under optimized conditions,the total orga nic carbon(TOC) removal efficiency of rhodamine B(RhB) can reach up to 80% in 40 min,which is almost 50% shorter than the reported values.The reactive radicals were identified and the proposed reaction mechanism was well described.Moreover,the disturbances of HCO_(3)^(-),NO_(3)^(-),Cl^(-)and H_(2) PO_(4)^(-)were further investigated.As a result,HCO_(3)-and NO_(3)-suppressed the reaction while Cl-and H_(2) PO4-had a double effect on reaction. | Pengjia Ding Jianrui Niu Fengqin Chang Zhuang He Thomas Wagberg Zaixing Li Guangzhi Hu | 2021 | Chinese Chemical Letters2021，32，8： | 2 |
| 8 | Electrochemical oxygen evolution reaction efficiently boosted by selective fluoridation of FeNi3 alloy/oxide hybrid显示文摘Performance boosting of hybrid metal oxide and metal alloy catalyst is crucial to the water electrolysis for hydrogen generation. Herein, a novel concept of selective fluoridation of metal alloy/oxide hybrid is proposed to boost their catalytic performance for the oxygen evolution reaction(OER). A well-recognized OER catalyst system of FeNi3 alloy/oxide embedded in nitrogen-doped porous nanofibers(FeNiO/NCF) is employed as a proof of concept, and it is selectively fluoridated by transforming the metal oxide to metal fluoride(FeNiF/NCF). The crystal structure and surface chemical state transformation are well supported by the spectroscopic analysis and the improved electrochemical performance for OER can be well correlated to the phase and structure change. Specifically, FeNiF/NCF can drive the benchmark current density of 10 mA cm-2 at 260 mV with a Tafel slope of 67 mV dec-1, about 70 mV less than that of FeNiO/NCF.Increased catalytic kinetics, rapid charge transfer ability, high catalytic efficiency and stability are also probed by electrochemical analysis. The high surface area and roughness are found mainly generated via the high-temperature annealing for the metal alloy/metal oxide formation, and the low-temperature fluoridation process intrinsically contributes to the active structure formation. It is an efficient and universal approach to increase the catalytic performance of metal alloy/oxide for energy-relevant catalytic reactions. | Meng Zha Chengang Pei Quan Wang Guangzhi Hu Ligang Feng | 2020 | Journal of Energy Chemistry2020，29，8： | 2 |
| 9 | Electrochemical deposited amorphous FeNi hydroxide electrode for oxygen evolution reaction显示文摘The electrodeposition approach is significant in electrode fabrication for practical application.Herein,the electrodeposited amorphous NiFe hydroxide species for oxygen evolution reaction (OER) in water splitting reaction is demonstrated by revealing the synergistic effect influenced by the support electrode of Fe and Ni foil and the contents of Fe and Ni in the electrolyte.All the electrodeposited samples have an amorphous structure and similar profiles of binding energy and chemical states for Fe and Ni as characterized by the spectroscopic techniques.While the support effect and Fe/Ni synergistic effect are indeed observed for the varied catalytic performances observed for the different electrodes;the Ni foil supported catalyst exhibits much higher performance than that of the Fe foil supported catalyst,and the different redox potentials of Ni species in the different Fe/Ni electrode resulting from the Fe–Ni synergism are observed in the cyclic voltammetry curve analysis.The surface roughness and the electrochemical surface area are also influenced by the support effect and the Fe/Ni ratio in the plating electrolyte.The optimal electrode shows a very low overpotential of~200 mV to reach 10 mA cm^(-2),and very high catalytic stability by the consecutive cyclic voltammetry measurements and 20 h stability test.Though it has the largest electrochemical surface area,the highest catalytic efficiency for these active sites is also indicated by the specific activity and turnover frequency polarization curves.The current work shows the effective experience for the electrodeposited Fe/Ni based catalysts in large-scale fabrication,which can be more practical for hydrogen generation in the alkaline water electrolysis. | Zhengzhi Yin Runze He Yongcai Zhang Ligang Feng Xiang Wu Thomas Wågberg Guangzhi Hu | 2022 | Journal of Energy Chemistry2022，31，6： | 2 |
| 10 | F3 peptide-functionalized PEG-PLA nanoparticles co-administrated with tLyp-1 peptide for anti-glioma drug delivery显示文摘 | Quanyin Hu Guangzhi Gu Zhongyang Liu Mengyin Jiang Ting Kang Deyu Miao Yifan Tu Zhiqing Pang Qingxiang Song Lei Yao Huimin Xia Hongzhan Chen Xinguo Jiang Xiaoling Gao Jun Chen | 2013 | Biomaterials2013，，4： | 1 |
| 11 | The nano-Au self-assembled glassy carbon electrode for selective determination of epinephrine in the presence of ascorbic acid 显示文摘 | Yang Zhousheng Hu Guangzhi Chen Xi | 2007 | Colloids and Surfaces B: Biointerfaces2007，54，2： | 1 |
| 12 | Ni–Co bimetallic coordination effect for long lifetime rechargeable Zn–air battery显示文摘The development of bifunctional oxygen electrocatalysts with high efficiency, high stability, and low cost is of great significance to the industrialization of rechargeable Zn–air batteries. A widely accepted view is that the oxygen reduction reaction(ORR) and the oxygen evolution reaction(OER) follow different catalytic mechanisms, and accordingly they need different active sites for catalysis. Transition metal elements have admirable electronic acceptance ability for coordinating with reactants, and this can weaken the bond energy between reactants, thus promoting the ORR or OER reactions. Herein, the ORR and OER activities of different transition metal supported nitrogen-doped carbon nanotubes were systematically studied and compared. The optimal catalyst for synchronous ORR and OER was obtained by pyrolyzing melamine, cobalt nitrate, and nickel nitrate on carbon nanotubes, called cobalt–nickel supported nitrogenmixed carbon nanotubes(CoNi–NCNT), which were equipped with two types of high-performance active sites—the Co/Ni–N–C structure for the ORR and Co Ni alloy particles for the OER—simultaneously. Remarkably, the optimized Co Ni–NCNT exhibited a satisfactory bifunctional catalytic activity for both the ORR and OER. The value of the oxygen electrode activity parameter,△E, of CoNi–NCNT was 0.81 V, which surpasses that of catalysts Pt/C and Ir/C, and most of the non-precious metal-based bifunctional electrocatalysts reported in previous literatures. Furthermore, a specially assembled rechargeable Zn–air cell with Co Ni–NCNT loaded carbon paper as an air cathode was used to evaluate the practicability. As a result, a superior specific capacity of 744.3 mAh/gZn, a peak power density of 88 mW/cm2, and an excellent rechargeable cycling stability were observed, and these endow the Co Ni–NCNT with promising prospects for practical application. | Mengfei Qiao Ying Wang Thomas Wagberg Xamxikamar Mamat Xun Hu Guoan Zou Guangzhi Hu | 2020 | Journal of Energy Chemistry2020，29，8： | 1 |
| 13 | Electrocatalytic oxidation and simultaneous determination of uric acid and ascorbic acid on the gold nanoparticles-modified glassy carbon electrode 显示文摘 | HU Guangzhi MA Yonggen GUO Yong | 2008 | Electrochim Acta2008，53，22： | 1 |
| 14 | A mesoporous carbon nanofiber-modified pyrolytic graphite electrode used for the simultaneous determination of dopamine, uric acid, and ascorbic acid显示文摘 | YUE Yun HU Guangzhi ZHENG Mingbo | 2012 | Carbon2012，50，1： | 1 |
| 15 | Synthesis,characterization and properties of hollow nickel phosphide nanospheres显示文摘 | NI Yonghong TAO Ali HU Guangzhi | 2006 | Nanotechnology2006，17，： | 1 |
| 16 | Electrocatalytic oxidation and simultaneous determination of uric acid and ascorbic acid on the gold nanoparticles-modified glassy carbon electrode显示文摘 | Guangzhi Hu Yonggen Ma Yong Guo Shijun Shao | 2008 | Electrochimica Acta2008，，22： | 1 |
| 17 | F3 peptide-functionalized PEG-PLA nanoparticles co-administrated with tLyp-1 peptide for anti-glioma drug delivery显示文摘 | Quanyin Hu Guangzhi Gu Zhongyang Liu Mengyin Jiang Ting Kang Deyu Miao Yifan Tu Zhiqing Pang Qingxiang Song Lei Yao Huimin Xia Hongzhan Chen Xinguo Jiang Xiaoling Gao Jun Chen | 2013 | Biomaterials2013，，4： | 1 |
| 18 | Single atom catalyst for electrocatalysis显示文摘Single atom catalyst(SAC)refers to a novel catalyst with the active metal atoms individually anchored on the support.Single atom catalysts present the unique appeal due to the high atomic availability and specific activity,as well as the high pathway selectivity.Herein,we summarized the classification,preparation,characterization,and application of single atom catalysts.Finally,the current bottlenecks and the outlooks of the SAC research are discussed. | Jianan Su Linzhou Zhuang Shusheng Zhang Qingju Liu Longzhou Zhang Guangzhi Hu | 2021 | Chinese Chemical Letters2021，32，10： | 1 |
| 19 | Self-supported porous copper oxide nanosheet arrays for efficient and selective electrochemical conversion of nitrate ions to nitrogen gas显示文摘Electrochemical techniques have shown advantages for the removal of low-concentration nitrate.Here,copper oxide nanosheets were grown on self-supporting nickel foam(NF)to prepare electrodes(CuO/NF),which realized the rapid and highly selective conversion of nitrate pollutants in sewage into nontoxic and harmless N_(2).The CuO/NF afforded 100%NO_(3)^(-)removal within 100 min and 99.53%selectivity for N_(2)at-50 mA without producing a lot of by-products(NO_(2)-,NH_(4)^(+),and N_(2)H_(4)).Furthermore,81.8%of NO_(3)^(-)was removed under the given conditions after six experimental repetitions.These results suggest that the cat-alyst has excellent electrochemical stability.The performance of CuO/NF for the electrocatalytic removal of NO_(3)^(-)in simulated wastewater(which contained Cl^(-) and SO_(4)^(2-))was almost unaffected.Because of the high efficiency,high stability,and low cost of CuO/NF,this catalyst is practical for the removal of nitrate for wastewater purification. | Xue Li Xue Zhao Jiapei Lv Xiuxiu Jia Shuxing Zhou Yimin Huang Fengqin Chang Hucai Zhang Guangzhi Hu | 2023 | Journal of Materials Science & Technology2023，，6： | 1 |
| 20 | A high‐performance transition‐metal phosphide electrocatalyst for converting solar energy into hydrogen at 19.6% STH efficiency显示文摘The construction of high-efficiency and low-cost non-noble metal bifunctional electrocatalysts for water electrolysis is crucial for commercial large-scale application of hydrogen energy.Here,we report a novel strategy with erbiumdoped NiCoP nanowire arrays in situ grown on conductive nickel foam(Er-NiCoP/NF).Significantly,the developed electrode shows exceptional bifunctional catalytic activity,which only requires overpotentials of 46 and 225 mV to afford a current density of 10 mAcm^(−2) for the hydrogen evolution reaction(HER)and the oxygen evolution reaction(OER),respectively.Density functional theory calculations reveal that the appropriate Er incorporation into the NiCoP lattice can significantly modulate the electronic structure with the d-band centers of Ni and Co atoms by shifting to lower energies with respect to the Fermi level,and optimize the Gibbs free energies of HER/OER intermediates,thereby accelerating water-splitting kinetics.When assembled as a solar-driven overall water-splitting electrolyzer,the as-prepared electrode shows a high and stable solar-to-hydrogen efficiency of 19.6%,indicating its potential for practical storage of intermittent energy. | Hua Zhang Abuduwayiti Aierke Yingtang Zhou Zitao Ni Ligang Feng Anran Chen Thomas Wågberg Guangzhi Hu | 2023 | Carbon Energy2023，5，1： | 1 |
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