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7篇 您的检索式:作者名="Wu Hongguo"
    题名 作者 年代 出处 被引量
1Philadelphia chromosome-positive acute myeloid leukemia with masses and osteolytic lesions: finding of 18F-FDG PET/CT显示文摘Zhan Su Fengyu Wu Weiyu Hu Xiaodan Liu Shaoling Wu Xianqi Feng Zhongguang Cui Jie Yang Zhenguang Wang Hongzai Guan Hongguo Zhao Wei Wang Chunting Zhao Jun Peng 2017Frontiers of Medicine2017,11,3:1
2Identifying the cause and effect factors of traffic safety at free way work zone based on DEMATEL model显示文摘Wu Biao Xu Hongguo Zhang Wenhui 2009The Second International Conference on Transportation Engineering 2009 ASCE Cheng Du2009,2009,:1
3显示文摘Zhang Hongguo Li Longtu Wu Pinggui 2000Materials Research Bulletin2000,35,:1
4Investigation on structure and properties of low-temperature sintered composite ferrites显示文摘Zhang Hongguo Li Longtu Wu Pinggui 2000Mater Res Bull2000,35,:1
5Cooperative catalysis of Co single atoms and nanoparticles enables selective CAr-OCH_(3) cleavage for sustainable production of lignin-based cyclohexanols显示文摘In this work,a dual-size MOF-derived Co catalyst(0.2Co_(1-NPs)@NC)composed of single atoms(Co_(1))and highly dispersed nanoparticles(Co NPs)was prepared by in-situ Zn evaporation for the highperformance conversion of lignin-derived o-methoxyphenols(lignin oil)to cyclohexanols(up to 97%yield)via cascade demethoxylation and dearomatization.Theoretical calculations elaborated that the dual-size Co catalyst exhibited a cooperative effect in the selective demethoxylation process,in which the Co NPs could initially dissociate hydrogen at lower energies while Co1remarkably facilitated the cleavage of the C_(Ar)-OCH_(3)bond.Moreover,the intramolecular hydrogen bonds formed in the omethoxy-containing phenols were found to result in a decrease in the bond energy of the C_(Ar)-OCH_(3)bond,which was more prone to be activated by the dual-size Co sites.Notably,the pre-hydrogenated intermediate(e.g.,2-methoxycyclohexanol from guaiacol)is difficult to undergo demethoxylation,indicating that the selective C_(Ar)-OCH_(3)bond cleavage is a prerequisite for the synthesis of cyclohexanols.The 0.2Co_(1-NPs)@NC catalyst was highly recyclable with a neglect decline in activity during five consecutive cycles.This cooperative catalytic strategy based on the metal size effect opens new avenues for biomass upgrading via enhanced C-O bond cleavage of high selectivity.Baoyu Wang Peng Zhou Ximing Yan Hu Li Hongguo Wu Zehui Zhang 2023Journal of Energy Chemistry2023,,4:0
6Residue Analysis of 55% MCPA·ametryn·diuron WP显示文摘The digestion regularity of MCPA,ametryn and diuron which were the active ingredients of 55% MCPA·ametryn·diuron WP in sugarcane leaves and soil of sugarcane plantation collected from Changsha of Hunan Province and Haikou of Hainan Province in 2009 and 2010were studied in the paper,and the results showed that these three agents had rapid digestion. The final residue test showed that both MCPA and ametryn had not been detected in the study; the average residues of diuron in the soil collected from Hunan Province in 2009 and 2010 were 0. 018 and 0. 015 mg / kg,respectively which were slightly larger than the critical value of 0. 013mg / kg; diuron had no been detected in other treatments.Yang Lang Liang Xueqiang Huang Lifei Wang Weilan Xu Hongkuan Wu Hongguo Huang Jing 2014Plant Diseases and Pests2014,5,1:0
7Zwitterionic cellular polymer enabled reductive fixation of CO_(2) for N-methylation of amines显示文摘Using heterogeneous catalysts to promote the construction of the C–N bond between amines and CO_(2) under mild conditions is a challenge yet.Herein,we synthesized a novel zwitterionic polymer(PDDC)with a cellular structure via self-complexation of copolymer bearing both quaternary ammonium cation and carboxylate anion.PDDC was employed as a recyclable catalyst for N-methylation of atmospheric CO_(2) and various amines with hydrosilane as a reductant,affording more than 17 N-methylamines in good to excellent yields(up to 99%)under mild conditions.The behavior of PDDC in the reaction medium was disclosed by using a dynamic light scattering study,revealing that the decreased hydraulic radius of particle size contributes to exposing more active sites and increasing reaction activity.Utilizing a series of designed experiments and density functional theory calculations uncovered the crucial role of the prepared zwitterionic polymer during the reaction procedure of CO_(2) conversion.Wenfeng Zhao Hu Li Hang Cong Hongguo Wu Ping Zhu Song Yang 2023Green Synthesis and Catalysis2023,4,4:0
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