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Dive into the research topics where Qinghua Liang is active.

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Featured researches published by Qinghua Liang.


Journal of Materials Chemistry | 2017

Recent advances in printable secondary batteries

Chengfeng Du; Qinghua Liang; Yubo Luo; Yun Zheng; Qingyu Yan

In past decades, with interest in wearable smart devices rapidly growing, the design and fabrication of novel energy storage devices have received increasing attention. Although secondary batteries are among the best options in this area, their bulky construction remains unable to fulfil the specific demands of miniaturization, portability, and flexibility. This review comprises a brief update on recent progress in printable secondary batteries, in combination with their principles and frequently used printing techniques. Moreover, we also discuss the challenges and advantages of printed secondary batteries and describe their future prospects in wearable smart devices.


Materials Chemistry Frontiers | 2017

Designing hybrid architectures for advanced thermoelectric materials

Yun Zheng; Yubo Luo; Chengfeng Du; Beibei Zhu; Qinghua Liang; Huey Hoon Hng; Kedar Hippalgaonkar; Jianwei Xu; Qingyu Yan

In recent decades, thermoelectric materials have garnered extensive interest and shown promising applications in energy conversion. The present review demonstrates the recent progress in the design of advanced hybrid thermoelectric nanocomposites mainly prepared by solution synthesis. Then the state-of-the-art strategies have been discussed for either enhancing the power factor or reducing the thermal conductivity. In some cases, the obtained peak ZT values are comparable to or superior to those of the traditional solid-state synthesized materials. Finally, we highlight the current challenges and future opportunities in the solution-synthesized thermoelectric nanocomposites.


Journal of Materials Science: Materials in Electronics | 2018

Enhancement of the thermoelectric performance of CuInTe 2 via SnO 2 in situ replacement

Weixin Li; Yubo Luo; Yun Zheng; Chengfeng Du; Qinghua Liang; Beibei Zhu; Lei Zhao

Inxa0situ induced nanostructure is employed as an alternative way to enhance the thermoelectric performance of p-type CuInTe2 based thermoelectric materials in this work. Dispersive In2O3 nanoparticles are formed in the samples with SnO2 by virtue of the in situ replacement of SnO2 and CuInTe2. As a result, an obvious reduction in the thermal conductivity has been achieved due to the intensive scattering of phonon by the in situ formed In2O3 nanoparticles. In addition, the power factor of CuInTe2 is less effected by SnO2 additive. Eventually, an enhanced ZT of 1.1 at 823xa0K has been achieved for the CuInTe2–0.5% SnO2 sample.


Small | 2018

Enhancement of Thermoelectric Performance in CuSbSe2 Nanoplate‐Based Pellets by Texture Engineering and Carrier Concentration Optimization

Yubo Luo; Chengfeng Du; Qinghua Liang; Yun Zheng; Beibei Zhu; Huanlong Hu; Khiam Aik Khor; Jianwei Xu; Qingyu Yan; Mercouri G. Kanatzidis

This work reports the thermoelectric properties of the CuSbSe2 -x mol% PtTe2 (x = 0, 0.5, 1.0, 1.5, and 2.0) pellets composed of highly oriented single crystalline nanoplates. CuSbSe2 -PtTe2 single crystalline nanoplates are prepared by a wet-chemical process, and the pellets are prepared through a bottom-up self-assembly of the CuSbSe2 -PtTe2 nanoplates and spark plasma sintering (SPS) process. X-ray diffraction and field emission scanning electron microscopic analyses show a highly textured nature with an orientation factor of ≈0.8 for (00l) facets along the primary surface of the pellets (in-plane, perpendicular to the SPS pressure). By this way, bulk-single-crystal-like electrical and thermal transport properties with a strong anisotropy are obtained, which results in an effective optimization on thermoelectric performance. The maximum in-plane thermoelectric figure-of-merit ZT value reaches 0.50 at 673 K for CuSbSe2 -2.0 mol% PtTe2 pellet, which is about five times higher than the in-plane ZT (0.10) for pure CuSbSe2 .


Nano-micro Letters | 2018

Layered Trichalcogenidophosphate: A New Catalyst Family for Water Splitting

Chengfeng Du; Qinghua Liang; Raksha Dangol; Jin Zhao; Hao Ren; Srinivasan Madhavi; Qingyu Yan

Due to the rapidly increasing demand for energy and environmental sustainability, stable and economical hydrogen production has received increasing attention in the past decades. In this regard, hydrogen production through photo- or electrocatalytic water splitting has continued to gain ever-growing interest. However, the existing catalysts are still unable to fulfill the demands of high-efficiency, low-cost, and sustainable hydrogen production. Layered metal trichalcogenidophosphate (MPQ3) is a newly developed two-dimensional material with tunable composition and electronic structure. Recently, MPQ3 has been considered a promising candidate for clean energy generation and related water splitting applications. In this minireview, we firstly introduce the structure and methods for the synthesis of MPQ3 materials. In the following sections, recent developments of MPQ3 materials for photo- and electrocatalytic water splitting are briefly summarized. The roles of MPQ3 materials in different reaction systems are also discussed. Finally, the challenges related to and prospects of MPQ3 materials are presented on the basis of the current developments.


ACS Applied Materials & Interfaces | 2018

CoSe2-Decorated NbSe2 Nanosheets Fabricated via Cation Exchange for Li Storage

Jianli Zhang; Chengfeng Du; Jin Zhao; Hao Ren; Qinghua Liang; Yun Zheng; Srinivasan Madhavi; Xin Wang; Junwu Zhu; Qingyu Yan

Though 2D transition metal dichalcogenides have attracted a lot of attention in energy-storage applications, the applications of NbSe2 for Li storage are still limited by the unsatisfactory theoretical capacity and uncontrollable synthetic approaches. Herein, a controllable oil-phase synthetic route for preparation of NbSe2 nanoflowers consisted of nanosheets with a thickness of ∼10 nm is presented. Significantly, a part of NbSe2 can be further replaced by orthorhombic CoSe2 nanoparticles via a post cation exchange process, and the predominantly 2D nanosheet-like morphology can be well-maintained, resulting in the formation of CoSe2-decorated NbSe2 (denoted as CDN) nanosheets. More interestingly, the CDN nanosheets exhibit excellent lithium-ion battery performance. For example, it achieves a highly reversible capacity of 280 mAh g-1 at 10 A g-1 and long cyclic stability with specific capacity of 364.7 mAh g-1 at 5 A g-1 after 1500 cycles, which are significantly higher than those of reported pure NbSe2.


ACS Applied Materials & Interfaces | 2018

Porous MXene Frameworks Support Pyrite Nanodots toward High-Rate Pseudocapacitive Li/Na-Ion Storage

Chengfeng Du; Qinghua Liang; Yun Zheng; Yubo Luo; Hui Mao; Qingyu Yan

Presented are the novel Ti3C2 T x MXene-based nanohybrid that decorated by pyrite nanodots on its surface (denoted as FeS2@MXene). The nanohybrid was obtained by the one-step sulfurization of self-assembled iron hydroxide@MXene precursor. When used for Li/Na-ion storage, the FeS2@MXene nanohybrid present excellent rate capabilities. Particularly, for Li-ion storage, an elevated reversible specific capacity of 762 mAh g-1 at 10 A g-1 after 1000 cycles was achieved. And for Na-ion storage, the FeS2@MXene nanohybrid also delivering a reversible specific capacity of 563 mAh g-1 after 100 cycles at a current density of 0.1 A g-1.


Advanced Energy Materials | 2018

n‐Type SnSe2 Oriented‐Nanoplate‐Based Pellets for High Thermoelectric Performance

Yubo Luo; Yun Zheng; Zhongzhen Luo; Shiqiang Hao; Chengfeng Du; Qinghua Liang; Zhong Li; Khiam Aik Khor; Kedar Hippalgaonkar; Jianwei Xu; Qingyu Yan; C. Wolverton; Mercouri G. Kanatzidis


Small Methods | 2017

General and Scalable Solid‐State Synthesis of 2D MPS3 (M = Fe, Co, Ni) Nanosheets and Tuning Their Li/Na Storage Properties

Qinghua Liang; Yun Zheng; Chengfeng Du; Yubo Luo; Jianli Zhang; Bing Li; Yun Zong; Qingyu Yan


Nano Energy | 2018

Achieving Highly Efficient Electrocatalytic Oxygen Evolution with Ultrathin 2D Fe-doped Nickel Thiophosphate Nanosheets

Qinghua Liang; Lixiang Zhong; Chengfeng Du; Yubo Luo; Yun Zheng; Shuzhou Li; Qingyu Yan

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Chengfeng Du

Nanyang Technological University

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Qingyu Yan

Nanyang Technological University

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Yun Zheng

Nanyang Technological University

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Yubo Luo

Nanyang Technological University

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Jianli Zhang

Nanyang Technological University

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Beibei Zhu

Nanyang Technological University

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Hao Ren

Nanyang Technological University

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Jin Zhao

Nanyang Technological University

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