[en] Site quality management of an engineering project of NPIC was introduced in this paper. Requirements on organization and management, interfaces, and management of interior and exterior communication were put forward, by description of quality planning, process management, process monitoring and summarizing for the engineering projects. By the management of personnel, specifications and procedures, and the control of equipment, material and work surroundings, not only the safety is ensured, but also the quality and schedule of the engineering project were guaranteed, and so the expected quality goals were achieved. (author)

[en] The author emphasizes the presentation of the quality control and management of implement process. Owing to the strict and scientific organizing, the field implement was completed only in 4 months, and comprehensive operation test of reactor was successful at one go. The management target that is safety, high efficiency and high quality, success at one go, was hit

[en] The set up of abnormal events database for the High Flux Engineering Test Reactor (HFETR) is described, and its abnormal event are counted analyzed. The results show that the main abnormal events include reactor control and protection system breakdown, reactor coolant system breakdown and others breakdown. These three breakdowns make up about 86.09% of the total events. But the influence of they on the reactor safety is not clear

[en] Safe and efficient hydrogen storage is one of the key technologies for the widespread utilization of hydrogen energy. Formic acid (FA) is regarded as a safe and convenient chemical hydrogen storage material. However, the lack of highly efficient heterogeneous catalysts hinders its practical application. Herein, we presented a facile wet-impregnated deposition method to synthesize ultrafine AuPd alloy nanoparticles anchored on TiO₂ nanosheets (AuPd/TiO₂ nanosheets) which were used as high efficient catalysts for the dehydrogenation of FA. TiO₂ nanosheets were calcined at different temperatures to modify the catalytic activity of catalyst. AuPd/TiO₂ nanosheets-400 exhibits the superior activity for catalyzing the FA to release 96% of overall hydrogen content with an initial turnover frequency value of 592 mol H₂ mol⁻¹ metal h⁻¹ at 25 °C and low activation energy of 11.8 kJ mol⁻¹. Detailed characterizations show that the superior catalytic performance can be ascribed to the alloy structure of AuPd centers, the phase and crystallinity of TiO₂ nanosheets, and the strong electron transfer interaction between AuPd nanoparticles and TiO₂ nanosheets substrate. (paper)

[en] Highly dispersed non-noble trimetallic Cu-Ni-Co nanoparticles can be successfully immobilized onto the pores of the metal-organic framework, MIL-101, by a simple solvent evaporation method. The Cu-Ni-Co@MIL-101 nanoparticles exhibit excellent catalytic effect on the hydrolysis of ammonia borane at 25 °C. Compared to their bimetallic and monometallic counterparts, Cu-Ni-Co trimetallic catalysts display superior catalytic activity. Careful investigation reveals that Cu_0.8Ni_0.1Co_0.1@MIL-101 (Cu:Ni:Co atomic ratio = 8:1:1) displays a total turnover frequency (TOF) value of 72.1 mol_H2 mol_cat⁻¹ min⁻¹. This is the highest TOF value reported for non-noble metal catalysts to date and is even superior to values afforded by some noble metal catalysts (Au, Pt and Pd). The apparent activation energy of Cu_0.8Ni_0.1Co_0.1@MIL-101 can be as low as 29.1 kJ mol⁻¹. This remarkable enhancement in catalytic performance is attributed to the large catalyst surface as well as the synergetic effect between Cu, Ni, and Co supported on MIL-101. This study provides a new strategy for the preparation of high performance non-noble metal catalysts for the practical hydrolysis of hydrogen storage systems, thereby fast-tracking the application of ammonia borane in fuel cells.

[en] SnO₂ is considered as one of the anode material for Li-ion batteries in terms of its superiority in high theoretical capacity (1494 mAh g⁻¹), low cost and environmental friendly. However, it is suffered from several issues such as rapid capacity deterioration, undesirable aggregation of tin particles and pesky expansion of volume. To conquer these shortcomings, a novel composite of ultrasmall SnO₂ quantum dots with an average particle size of 4–5 nm anchored on nitrogen-doped reduced graphene oxide (SnO₂@NRGO) was first in situ synthesized By means of hydrothermal method. The results show that as-prepared SnO₂@NRGO electrode exhibits a greater enhancement in its initial discharge capacity (1678.4 mAh g⁻¹) and reversible capacity (1333.5 mAh g⁻¹ after 450 cycles) at a current density of 500 mA g⁻¹, implying a long cycle life. Furthermore, the high rate capability of SnO₂@NRGO is superior to SnO₂@RGO and SnO₂ electrodes. The excellent electrochemical reversibility of SnO₂@NRGO electrode can be ascribed to the great conductivity, ultrahigh specific surface area and the synergetic effect between ultrasmall SnO₂ quantum dots and NRGO. - Highlights: • Quantum dots SnO₂/nitrogen-doped graphene oxide composite were synthesized for Li-ion battery. • SnO₂@NRGO electrode show superior electrochemical performance to SnO₂@RGO electrode and SnO₂ electrode. • SnO₂@NRGO electrode exhibits excellent reversible capacity of 1333.5 mAh g⁻¹ over 450 cycles.