冷雪
,
吴光栩
,
苏并坚
,
张凌云
,
IanR.Gentle
,
王大伟
催化学报
doi:10.1016/S1872-2067(17)62811-0
电解水制氧是一种非常有吸引力的转化储存间歇式能源的技术.本文着重研究了非晶态钴硼合金的电解水产氧性能.非晶态钴硼合金可以通过硼氢化钠直接还原钴盐来获取,并表现出较高的电化学活性.对钴硼合金的弱氧化,产生了类水滑石结构的钴氢氧化物,可进一步提高该类催化剂的整体催化活性,达到接近商业催化剂水平.
关键词:
非晶态合金
,
产氧反应
,
电催化剂
Solid State Communications
The modulation effect of transverse current on the switching with hysteresis characteristics of quasi-ID charge-density wave conductor rubidium blue bronze Rb0.3MoO3 single crystals was investigated for the first time. The behavior of the transverse current dependence of second threshold field E-T2 (E-I characteristic curves) was obtained at 24 K under the current source driving. The E-T2 gradually decreases with the increase of transverse current I-T when transverse current I-T exceeds a certain value I-C. The E-I curves become smoother and the switching shows a gentle weakening by the increasing of I-T. Correspondingly, the I-E properties (voltage source driving) with an obvious switching from a low conducting state to a high conducting state were measured under the modulation of transverse current. Gradually, the E-T2 cannot be distinguished with transverse current increase. The areas of the hysteresis characteristics loop become gently smaller when transverse current increases. It is noted that the transverse currents only induce E-T2 to decrease when they go up, yet however, hardly affect the back curves of the hysteresis loop. This could explain the effect of the transverse current as not a thermal effect, because the back curves of the hysteresis loop are not identical at different temperatures. (c) 2006 Elsevier Ltd. All rights reserved.
关键词:
blue bronze Rb0.3MoO3;charge-density wave;the modulation of a;transverse current;switching and hysteresis;charge-density-wave;current-effect transistor;non-linear conductivity;low-temperatures;electric-field;k0.3moo3;onset;rb0.30moo3;k0.30moo3;transport
