Volume 10

Issue 05,2017

(31 articles)


Juan Xia1, Xingli Wang2, Beng Kang Tay2,3, Shoushun Chen4, Zheng Liu2,3,5, Jiaxu Yan1,6 (*), and Zexiang Shen1,3,7 (*)

In addition to valley and layer pseudospins, stacking pseudospin generates distinct valley polarization behaviors in stacked trilayer MoS2. Specifically, the AAB (ABB)-stacked samples exhibit two distinct photoluminescence (PL) peaks: One has strong valley polarization, and the other one is unpolarized.
2017, 10(5): 1618–1626

Hamza Kahri1,2, Melike Sevim1, and Önder Metin1,3 (*)

Herein, we report the first synthesis of mesoporous graphitic carbon nitride (mpg-C3N4)-assembled monodispersed AgPd alloy nanoparticles (mpg-C3N4@AgPd) and their unprecedented catalysis in the hydrolytic dehydrogenation of ammonia borane (AB) at room temperature. The activation energy and the total turnover frequency for the hydrolysis reaction were 28.2 kJ·mol−1 and 94.1 min−1, respectively. These values are better than those for most heterogeneous catalyst systems tested for AB hydrolysis and are the best among all Pd-based catalysts.
2017, 10(5): 1627–1640

Guizhi Zhu1,2, Yawei Li1,2, Haiyan Zhu1,3, Haibin Su1,4, Siew Hwa Chan1,5, and Qiang Sun1,2 (*)

The Cu-terminated armchair GNRs with a width of n=3p+2 are more efficient catalysts for producing methanol from CO2 with a free energy barrier of less than 0.5 eV, offering the advantages of a lower overpotential and higher selectivity than bulk Cu and other graphene-supported Cu structures.
2017, 10(5): 1641–1650

Zhengqing Yan1,2, Andong Zhao1,2, Xinping Liu1,2, Jinsong Ren1, and Xiaogang Qu1 (*)

A multifunctional pH-responsive mesoporous silica nanoreactor is presented. This well-designed nanoreactor avoids the non-specific degradation of ZnO nanoparticles, resulting in synergetic therapy by taking advantage of ZnO nanoparticle-induced oxidative stress and targeted drug release.
2017, 10(5): 1651–1661

Yanhong Lu1,3,§, Bo Ma2,§, Yang Yang1,2, Erwei Huang2, Zhen Ge1,2, Tengfei Zhang1,2, Suling Zhang3, Landong Li2 (*), Naijia Guan2, Yanfeng Ma1,2, and Yongsheng Chen1,2 (*)

With a unique hot-electron mechanism, an efficient ultraviolet-visible (UV-vis) light driven hydrogen production from water splitting was demonstrated for the first time using a carbon-only bulk three-dimensionally cross-linked graphene (3DG) material as a robust catalyst. Combined with the widely used semiconductor TiO2, a dramatically enhanced catalytic activity with a rate of 1,205 μmol·h-1·gcat-1 under UV-vis light and a 7.2% apparent quantum efficiency at 350 nm is achieved for hydrogen production due to the synergetic effects between TiO2 and such a bulk graphene material.
2017, 10(5): 1662–1672

Wee-Jun Ong1 (*), Lutfi Kurnianditia Putri2, Yoong-Chuen Tan2, Lling-Lling Tan3, Neng Li4, Yun Hau Ng5, Xiaoming Wen6, and Siang-Piao Chai2 (*)

In this study, we successfully developed metal-free zero-dimensional/ two-dimensional carbon nanodot (CND)-hybridized protonated g-C3N4 (pCN) (CND/pCN) heterojunction photocatalysts, synthesized via electrostatic attraction. The resulting enhancement of the photocatalytic reduction of CO2 was attributed to efficient electron migration and separation from pCN to CNDs, because of the intimate interfacial coupling of CNDs and pCN. This hindered the charge recombination process, as determined by experimental results and computational simulations.
2017, 10(5): 1673–1696

Emilio Scalise1 (*) and Michel Houssa2

Dumbbell silicene is predicted to be stable on SnS2, showing tunable electronic and optical properties. The results provide guidance on the growth of silicene on nonmetallic substrates, potentially boosting its potential for application in nanoelectronics.
2017, 10(5): 1697–1709

Suqin Li§, Zhiwei Wang§, Xiaoshan Wang, Fangfang Sun, Kai Gao, Ningxian Hao, Zhipeng Zhang, Zhongyuan Ma, Hai Li, Xiao Huang (*), and Wei Huang (*)

Highly oriented g-C3N4 fibers with both meso- and micro-pores were prepared and hybridized with Au nanoparticles for sensitive NO2 detection under ambient conditions.
2017, 10(5): 1710–1719

Xin Ying Kong1, Wen Liang Tan1, Boon-Junn Ng1, Siang-Piao Chai1 (*), and Abdul Rahman Mohamed2

A carbon quantum dots (CQDs)/ultrathin Bi2WO6 nanosheets (UBW) hybrid nanocomposite was demonstrated to be a visible (Vis)–nearinfrared (NIR)-responsive photocatalyst for CO2 reduction to energyrich CH4 hydrocarbon fuel.
2017, 10(5): 1720–1731

Ma Luo1,§, Zhao Cai1,2,§, Cheng Wang3, Yongmin Bi1, Li Qian1, Yongchao Hao1, Li Li1, Yun Kuang1, Yaping Li1, Xiaodong Lei1, Ziyang Huo4, Wen Liu2 (*), Hailiang Wang2, Xiaoming Sun1 (*), and Xue Duan1

Nickel–iron layered double hydroxides with specific interlayer anions (namely, phosphate, phosphite, and hypophosphite) were fabricated by a co-precipitation method and investigated as oxygen evolution electrocatalysts. The interlayered anions modify the surface electronic structure of the Ni sites, resulting in high-performance for electrocatalytic oxygen evolution.
2017, 10(5): 1732–1739