reduction n. 1.縮小,減少;降級,降位;(刑罰等的)輕減;減速;減價,折扣。 2.(城市、國家等的)陷落,投降,被征服、變成 (to; into)。 3.破落,沒落;【物理學】衰減。 4.類別;碎礦;提煉。 5.【數(shù)學】簡化,約簡,縮減;化歸。 6.(測量結果的)整理,(代號等的)譯解;【無線電】訂正。 7.【化學】還原法,改格法;【攝影】減薄。 a 10% reduction 九折。 great reductions in prices 大減價。 the reduction of armaments 裁(減)軍(備)。 ascending [descending] reduction 由小[大]單位改成大[小]單位的換算法。 reduction to absurdity=reductio ad absurdum.
Reaction of oxygen reduction at spe composite electrode 復合膜電極上氧還原反應研究
Oxygen precipitation characterization of silicon wafers by measurement of interstitial oxygen reduction 硅片氧沉淀特性的測定-間隙氧含量減少法
Test methods for oxygen precipitation characterization of silicon wafers by measurement of interstitial oxygen reduction 通過測量間隙氧含量的減少表征硅片氧沉淀特性的方法
The oxygen reduction catalyst is the key material of air electrode used in the metal-air battery and the electrochemical oxygen generator 氧還原催化劑是金屬空氣電池和電化學制氧空氣電極的核心材料。
The research on electrocatalysts for oxygen reduction is of great importance to the development of proton exchange membrane fuel cell 摘要氧電極還原電催化劑對于質子交換膜燃料電池的發(fā)展具有重要的意義。
The results revealed that the corrosion process was controlled by both hydrogen evolution and oxygen reduction reactions in the temperature range from 30 to 150 實驗結果表明該腐蝕過程由析氫反應和氧還原反應共同控制,并且在30~150的范圍內溫度的升高未改變腐蝕反應歷程。
Also, the steady mass specific peak current of oxygen reduction methanol on this modified platinum was 20 % more than that on the non-modified platinum, the overpotential of ox vulcanxc72活性碳粉的引入使抗co中毒的性能又得到了進一步提高,單位質量的pt的氧還原峰電流又進一步增大。
Carbon nanotubes ( cnt ) are new promising materials of catalyst supports for pemfcs . previous studies reveal that cnts supported catalysts show enhanced catalytic activity towards oxygen reduction reaction ( orr ) and methanol oxidation 碳納米管(cnt)作為載體的電催化劑在氧還原和甲醇氧化等pemfc電極反應方面表現(xiàn)出良好的催化活性。
Transport in the diffusion layers and catalyst layers are described by a superposition of knudsen diffusion and stefan-maxwell diffusion, and electrochemical kinetics for anodic methanol oxidation and cathodic oxygen reduction are described by tafel equation 模型以stefan-maxwell擴散和knudsen擴散的疊加描述了氣體混合物在多孔電極中的擴散過程,以tafel方程描述了甲醇在陽極氧化和氧在陰極還原的電化學動力學。
Nevertheless, the step toward the practical application has not been developed as fast as had been expected . mainly, there are some problems, such as low electrocatalytic activity of the anodic catalyst, the poisoning of the anode catalysts by the adsorbed carbonyl species derived from methanol oxidation, methanol permeation from anode to cathode and demand for methanol-tolerant oxygen reduction catalyst 然而,陽極催化劑的低催化活性、甲醇氧化中間體羰基物對陽極催化劑的毒化、甲醇從陽極向陰極的滲透、以及由甲醇滲透引起的陰極氧還原抗甲醇要求等,致使dmfc的實際應用發(fā)展速度一直沒有預期的快。