Sadi Carnot Questions the Second Law of Thermodynamics

It seems that isothermal heat engines (violating the second law of thermodynamics) are now not only under scientific scrutiny but also gone into the phase of technological development. Yet the scientific community finds it judicious to completely ignore the reports, even when they are published in prestigious journals:

http://www.azocleantech.com/article.aspx?ArticleID=610
"A graphene battery has been developed that has the potential to convert ambient heat into electric current. This invention increases the prospect of green, clean batteries powered by ambient heat, and represents a significant progress in the research of self-powered technology."

http://arxiv.org/abs/1203.0161
Self-Charged Graphene Battery Harvests Electricity from Thermal Energy of the Environment, Zihan Xu et al: "Moreover, the thermal velocity of ions can be maintained by the external environment, which means it is unlimited. However, little study has been reported on converting the ionic thermal energy into electricity. Here we present a graphene device with asymmetric electrodes configuration to capture such ionic thermal energy and convert it into electricity. [...] To exclude the possibility of chemical reaction, we performed control experiments... [...] In conclusion, we could not find any evidences that support the opinion that the induced voltage came from chemical reaction. The mechanism for electricity generation by graphene in solution is a pure physical process..."

http://scitation.aip.org/content/aip...1063/1.4825269
Electricity generated from ambient heat across a silicon surface, Guoan Tai, Zihan Xu, and Jinsong Liu, Appl. Phys. Lett. 103, 163902 (2013): "We report generation of electricity from the limitless thermal motion of ions across a two-dimensional (2D) silicon (Si) surface at room temperature. [...] ....limitless ambient heat, which is universally present in the form of kinetic energy from molecular, particle, and ion sources, has not yet been reported to generate electricity. [...] This study provides insights into the development of self-charging technologies to harvest energy from ambient heat, and the power output is comparable to several environmental energy harvesting techniques such as ZnO nanogenerator, liquid and gas flow-induced electricity generation across carbon nanotube thin films and graphene, although this remains a challenge to the second law of thermodynamics..."

https://www.youtube.com/watch?v=RVUf7-tTLXo
The Super Supercapacitor. Note the "real exciting discovery" ("The world changed at that point") demonstrated by UCLA scientists at 1:09.

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