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| 1 | Structure evolution of oxygen removal from porous carbon for optimizing supercapacitor performance显示文摘The presence of oxygen functional groups is detrimental to the capacitive performance of porous carbon electrode in organic electrolyte. In this regards, hydrogen thermal reduction has been demonstrated effective approach in removing the unstable surface oxygen while maintaining the high porosity of carbon matrix. However, the exact evolution mechanism of various oxygen species during this process, as well as the correlation with electrochemical properties, is still under development. Herein, biomass-based porous carbon is adopted as the model material to trace its structure evolution of oxygen removal under hydrogen thermal reduction process with the temperature range of 400–800 °C. The optimum microstructure with low oxygen content of 0.90% and proper pore size distribution was achieved at 700°C. XPS, TPRMS and Boehm titration results indicate that the oxygen elimination undergoes three distinctive stages(intermolecular dehydration, hydrogenation and decomposition reactions). The optimum microstructure with low oxygen content of 0.90% and proper pore size distribution was achieved at 700 °C. Benefiting from the stable electrochemical interface and the optimized porous structure, the as-obtained HAC-700 exhibit significantly suppressed self-discharge and leak current, with improved cycling stability, which is attributable to the stabilization of electrochemical interface between carbon surface and electrolyte. The result provides insights for rational design of surface chemistry for high-performance carbon electrode towards advanced energy storage. | Siting Yuan Xianhong Huang Hao Wang Lijing Xie Jiayao Cheng Qingqiang Kong Guohua Sun Cheng-Meng Chen | 2020 | Journal of Energy Chemistry2020，29，12： | 16 |
| 2 | Effect of steam explosion and microbial fermentation on cellulose and lignin degradation of corn stover显示文摘 | Juan Chang Wei Cheng Qingqiang Yin Ruiyu Zuo Andong Song Qiuhong Zheng Ping Wang Xiao Wang Junxi Liu | 2011 | Bioresource Technology2011，，： | 3 |
| 3 | The effects of a new shape-memory alloy interspinous process device on the distribution of intervertebral disc pressures in vitro显示文摘This study was designed to measure the pressure distribution of the intervertebral disc under different degrees of distraction of the interspinous process, because of a suspicion that the degree of distraction of the spinous process may have a close relationship with the disc load share. Six human cadaver lumbar spine L2-L5 segments were loaded in flexion, neutral position, and extension. The L3-L4 disc load was measured at each position using pressure measuring films. Shape-memory interspinous process implants (SMID) with different spacer heights, ranging in size from 10 to 20 mm at 2 mm increments, were used. It was found that a SMID with a spacer height equal to the distance of the interspinous process in the neutral position can share the biomechanical disc load without a significant change of load in the anterior annulus. An interspinous process stabilizing device (IPD) would not be appropriate to use in those cases with serious spinal stenosis because the over-distraction of the interspinous process by the SMID would lead to overloading the anterior annulus which is a recognized cause of disc degeneration. | Shengnai Zheng Qingqiang Yao Li Cheng Yan Xu Peng Yuan Dongsheng Zhang Xiangwen Liao Liming Wang | 2010 | The Journal of Biomedical Research2010，24，2： | 2 |
| 4 | Effect of steam explosion and microbial fermentation on cellulose and |ignin degradation of corn stover显示文摘 | Juan Chang Wei Cheng Qingqiang Yin | 2011 | Bioresource Technology2011，，： | 1 |
| 5 | Effect of steam explosion and microbial fermentation on cellulose and lignin degradation of corn stover显示文摘 | CHANG Juan CHENG Wei YIN Qingqiang | 2012 | Bioresource Technology2012，104，： | 1 |
| 6 | Magnetic fabric characteristics of late Quaternary strata in Shanghai area显示文摘The result of measurements and analyses on magnetic fabrics data for the late Quaternary core at Caoyangxincun in Shanghai shows that abrupt changes of magnetic fabric curves coincide with the boundaries between the marine strata and underlying stiff clay. Littoral, neritic, subtidal and tidal flat facies in the marine strata have distinct magnetic fabric characteristics. The curves of the parameters, K, P, L, q, display clear boundaries between various facies, which could serve as a new method for the stratigraphic subdivision and correlation. | Daidu Fan Qingqiang Cheng Youzi Cong Congxian Li | 1998 | Chinese Science Bulletin1998，43，18： | 0 |
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