ORCID Profile
0000-0003-0471-9752
Current Organisation
University of Malaya
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Publisher: Elsevier BV
Date: 10-2017
Publisher: Elsevier BV
Date: 12-2011
Publisher: Penerbit Universiti Sains Malaysia
Date: 2016
Publisher: Elsevier BV
Date: 15-05-2009
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9TA01281H
Abstract: This paper presents the synthesis of biphenyl bridged dendritic mesoporous organosilica nanoparticles (BDMONs) and the important role of biphenyl groups in the adsorption of pyrene.
Publisher: Wiley
Date: 28-05-2012
Publisher: World Scientific Pub Co Pte Lt
Date: 04-2004
DOI: 10.1142/S0217590804000809
Abstract: This study re-examines the validity of the relationship between the Singapore dollar–U.S. dollar exchange rate and relative prices using the latest econometric methodologies that account for non-linearity. Among others, this study finds Exponential Smooth Transition Autoregressive (ESTAR)-type non-linear mean-reverting adjustment process of the nominal Singapore dollar–U.S. dollar rate towards the consumer price index ratio. Unlike previous findings of a linear cointegration relationship between the nominal Singapore dollar–U.S. dollar exchange rate and consumer price index ratio, this study shows that the relationship is in fact non-linear in nature. The major economic implications of our findings are: (1) policy makers need to take non-linearity into consideration in their policy decisions (2) the Monetary Authority of Singapore (MAS) is able to maintain the macroeconomic equilibrium despite the authority's strong dollar policy and (3) one should keep track of Singapore's monetary policy and other innovations in aggregate demand in order to closely monitor the movement of the Singapore exchange rate.
Publisher: Wiley
Date: 18-12-2018
Abstract: Oxygen vacancy (V
Publisher: American Chemical Society (ACS)
Date: 09-07-2018
Publisher: American Chemical Society (ACS)
Date: 04-09-2018
Publisher: IOP Publishing
Date: 10-2019
Abstract: In recent years, structure design and predictions based on global optimization approach as implemented in CALYPSO software have gained great success in accelerating the discovery of novel two-dimensional (2D) materials. Here we highlight some most recent research progress on the prediction of novel 2D structures, involving elements, metal-free and metal-containing compounds using CALYPSO package. Particular emphasis will be given to those 2D materials that exhibit unique electronic and magnetic properties with great potentials for applications in novel electronics, optoelectronics, magnetronics, spintronics, and photovoltaics. Finally, we also comment on the challenges and perspectives for future discovery of multi-functional 2D materials.
Publisher: Wiley
Date: 12-01-2011
Publisher: Springer Science and Business Media LLC
Date: 05-02-2019
DOI: 10.1038/S41467-019-08468-8
Abstract: Epitaxial growth of atomically thin two-dimensional crystals such as transition metal dichalcogenides remains challenging, especially for producing large-size transition metal dichalcogenides bilayer crystals featuring high density of states, carrier mobility and stability at room temperature. Here we achieve in epitaxial growth of the second monolayer from the first monolayer by reverse-flow chemical vapor epitaxy and produce high-quality, large-size transition metal dichalcogenides bilayer crystals with high yield, control, and reliability. Customized temperature profiles and reverse gas flow help activate the first layer without introducing new nucleation centers leading to near-defect-free epitaxial growth of the second layer from the existing nucleation centers. A series of bilayer crystals including MoS 2 and WS 2 , ternary Mo 1−x W x S 2 and quaternary Mo 1−x W x S 2(1−y) Se 2y are synthesized with variable structural configurations and tunable electronic and optical properties. The robust, potentially universal approach for the synthesis of large-size transition metal dichalcogenides bilayer single crystals is highly-promising for fundamental studies and technological applications.
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9CY01709G
Abstract: Si doped graphene as a metal-free catalyst to convert CO 2 to methanol and ethanol with high selectivity and activity.
Publisher: Informa UK Limited
Date: 18-09-2023
Publisher: SAGE Publications
Date: 12-2005
DOI: 10.1177/097265270500400303
Abstract: This study employs the Hinich portmanteau bicorrelation test (Hinich 1996 Hinich and Patterson 1995) as a diagnostic tool to determine the adequacy of Generalised Autoregressive Conditional Heteroscedasticity (GARCH) models for eight Asian stock markets. The bicorrelation test results demonstrate that this type of model cannot provide an adequate characterisation for the underlying process of all the selected Asian stock markets. Further investigation using the windowed test procedure reveals that the violation of the covariance stationarity assumption as required by the GARCH process is due to the presence of transient epochs of dependencies in the data. The inadequacy of GARCH models has strong implications for the pricing of stock index options, portfolios selection, development of optimal hedging techniques and risk management.
Publisher: American Chemical Society (ACS)
Date: 26-07-2018
Publisher: Elsevier BV
Date: 09-2011
Publisher: Informa UK Limited
Date: 2009
Publisher: Elsevier BV
Date: 03-2020
Publisher: Elsevier BV
Date: 09-2008
Publisher: American Chemical Society (ACS)
Date: 02-10-2018
Abstract: Dirac half-metals have drawn great scientific interests in spintronics because of their outstanding physical properties such as the large spin polarization and massless Dirac fermions. By using first-principles calculations, we investigate the perovskite-type lanthanum manganite (LaMnO
Publisher: Informa UK Limited
Date: 02-03-2009
Publisher: Elsevier BV
Date: 04-2016
Publisher: Elsevier BV
Date: 07-2018
Publisher: Elsevier BV
Date: 03-2007
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C8CP06978F
Abstract: A promising highly efficient and inexpensive W@N-doped graphyne electrocatalyst for N 2 fixation has been predicted by first-principle calculation.
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9TA02926E
Abstract: A Mo-based MOF is an efficient electrocatalyst for the N 2 reduction reaction with a low overpotential of 0.18 V.
Publisher: Informa UK Limited
Date: 03-2013
Publisher: Wiley
Date: 20-05-2019
Publisher: American Physical Society (APS)
Date: 19-12-2019
Publisher: SAGE Publications
Date: 05-2009
DOI: 10.1177/097265270900800203
Abstract: Motivated by the shortcomings of earlier Chinese efficiency studies, the present paper re-examines the weak-form efficiency of Shanghai and Shenzhen Stock Exchanges. Specifically, our adopted methodologies mitigate the confounding effect of thin trading on return autocorrelation, detect both linear and nonlinear serial dependencies in the adjusted returns series, and capture the persistence of dependency structures over time. The result shows that the adjusted returns series from both markets follow a random walk for long periods of time, only to be interspersed with brief periods of strong linear and/or nonlinear dependency structures. This suggests that there are certain time periods when new information is not fully reflected into stock prices. Another interesting finding is that the existence of serial dependencies in both the Shanghai and Shenzhen Stock Exchanges follows one another closely after October 1997. It indicates that both markets respond in a similar way to influences from political, economic, social and institutional changes.
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9TA00696F
Abstract: Low temperature NH 3 plasma modification of Ni MOF-74 yields a highly efficient hydrogen evolution catalyst with a carambola-like hierarchical 3D structure, which is composed of ultrafine Ni nanocrystals encapsulated in a thin layer of N doped carbon.
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9NR01336A
Abstract: Silicene on a Ag(111) substrate has superior activity for CO 2 hydrogenation, with selectivity being intrinsically dependent on the number of layers.
Publisher: Elsevier BV
Date: 2022
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0NR03391J
Abstract: Insertion of Li can covert Fe 2 O 3 layer as a multiferroics due to the Jahn–Teller distortion and d orbital splitting, which is promising for advanced device applications.
Publisher: Informa UK Limited
Date: 2007
Publisher: Informa UK Limited
Date: 07-2012
Publisher: Beilstein Institut
Date: 22-02-2019
DOI: 10.3762/BJNANO.10.55
Abstract: The design of new, efficient catalysts for the conversion of CO 2 to useful fuels under mild conditions is urgent in order to reduce greenhouse gas emissions and alleviate the energy crisis. In this work, a series of transition metals (TMs), including Sc to Zn, Mo, Ru, Rh, Pd and Ag, supported on a boron nitride (BN) monolayer with boron vacancies, were investigated as electrocatalysts for the CO 2 reduction reaction (CRR) using comprehensive density functional theory (DFT) calculations. The results demonstrate that a single-Mo-atom-doped boron nitride (Mo-doped BN) monolayer possesses excellent performance for converting CO 2 to CH 4 with a relatively low limiting potential of −0.45 V, which is lower than most catalysts for the selective production of CH 4 as found in both theoretical and experimental studies. In addition, the formation of OCHO on the Mo-doped BN monolayer in the early hydrogenation steps is found to be spontaneous, which is distinct from the conventional catalysts. Mo, as a non-noble element, presents excellent catalytic performance with coordination to the BN monolayer, and is thus a promising transition metal for catalyzing CRR. This work not only provides insight into the mechanism of CRR on the single-atom catalyst (Mo-doped BN monolayer) at the atomic level, but also offers guidance in the search for appropriate earth-abundant TMs as electrochemical catalysts for the efficient conversion of CO 2 to useful fuels under ambient conditions.
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C8TA11646F
Abstract: WO 3 /graphene composite minimizes the polysulfide dissolution problem in the lithium–sulfur (Li–S) battery systems while exhibiting an excellent battery performance.
Publisher: Elsevier BV
Date: 04-2020
Publisher: Springer Science and Business Media LLC
Date: 11-06-2019
Publisher: Elsevier BV
Date: 12-2019
Publisher: Cambridge University Press (CUP)
Date: 15-12-2009
DOI: 10.1017/S1365100509090397
Abstract: This paper employs the rolling bicorrelation test to measure the degree of nonlinear departures from a random walk for aggregate stock price indices of fifty countries over the s le period 1995–2005. We find that stock markets in economies with low per capita GDP in general experience more frequent price deviations than those in the high-income group. This clustering effect is not due to market liquidity or other structural characteristics, but instead can be explained by cross-country variation in the degree of private property rights protection. Our conjecture is that weak protection deters the participation of informed arbitrageurs, leaving those markets dominated by sentiment-prone noise traders whose correlated trading causes stock prices in emerging markets to deviate from the random walk benchmarks for persistent periods of time.
Publisher: Informa UK Limited
Date: 08-2003
Publisher: Informa UK Limited
Date: 07-2009
Publisher: Informa UK Limited
Date: 2008
Publisher: Informa UK Limited
Date: 25-03-2009
Publisher: American Physical Society (APS)
Date: 14-01-2019
Publisher: Elsevier BV
Date: 09-2020
Publisher: Wiley
Date: 07-01-2019
Publisher: Elsevier BV
Date: 2013
Publisher: Informa UK Limited
Date: 20-01-2009
Publisher: Emerald
Date: 08-2008
DOI: 10.1108/10867370810894710
Abstract: The purpose of this paper is to empirically examine the relative efficiency of eight economic sectors in the Malaysian stock market and the impact of the 1997 Asian financial crisis on the reported sectoral efficiency. This paper investigates the relative efficiency of stock market using the recently proposed rolling bicorrelation test statistic that is designed to detect nonlinear predictability in stock returns series. For the s le period of 1 January 1994 to 31 October 2006, the sector of tin and mining is found to be the most efficient sector, while the properties sector experiences the most persistent deviations from random walk over time. The subsequent sub‐periods analysis reveals that the highest inefficiency occurs during the crisis period for all economic sectors except tin and mining. However, all these seven crisis‐stricken sectors managed to stage a turnaround in the USD pegged period where capital controls were imposed by the Malaysian government. The Malaysian experience demonstrates that credible policy actions to calm the markets and restore investors' confidence ought to be the priority during turbulent period to avoid deterioration in the level of market efficiency. This provides useful input for market regulators. The occurrence of market crash or financial crisis is one possible contributing factor of market inefficiency. However, there is a lack of empirical research to formally assess the impact of financial crisis on stock market efficiency, and hence little is known about stock price behaviour during financial turmoil.
Publisher: Wiley
Date: 08-10-2018
Abstract: Charge transfer in solar cells is crucial, and so is the hole transporting layer (HTL) component in perovskite solar cells (PSCs). Finding a suitable material for this purpose that is inexpensive - either organic or inorganic - is currently one of the prime research objectives to improve the performance, through charge transfer dynamics, of PSCs.< One such recent finding is carbon quantum dots (C-dots), which is a simple and low-cost organic material that could be an alternative option to the currently employed high-cost and complex-structured hole transporting materials (HTMs) utilized in perovskite solar cells. A series of C-dots functionalized with hydrogen, hydroxyl (-OH), and carboxyl (-COOH) groups are considered in this study for their hole-transporting properties. The results reveal that simple hexagonal structured C-dots including -OH and -COOH group substituted C-dots have suitable valance band maximum (VBM) positions, which are suitable for hole transport. It is discovered that the position of the functional moieties on the C-dots would impact the band-edge positions of the C-dots. This implies that tuning the band position is possible so that these two-dimensional C-dots could, in principle, be used for other solar-cell applications that may require different band positions for optimal performance. As a representative ex le, we studied the perovskite/C-Dot interface of two different possible surfaces (i. e. MAI and PbI
Publisher: American Chemical Society (ACS)
Date: 10-10-2018
Abstract: Lowering the concentration of CO
Publisher: Elsevier BV
Date: 03-2023
Publisher: Elsevier BV
Date: 06-2008
Publisher: American Chemical Society (ACS)
Date: 17-09-2018
DOI: 10.1021/ACS.JPCLETT.8B02349
Abstract: In situ tensile tests show atypical defect motions in the brittle Na
Publisher: Informa UK Limited
Date: 11-12-2022
Publisher: American Chemical Society (ACS)
Date: 08-11-2018
Publisher: Wiley
Date: 14-11-2018
Publisher: American Chemical Society (ACS)
Date: 04-10-2018
DOI: 10.1021/JACS.8B07472
Abstract: Solar nitrogen (N
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9TC01134J
Abstract: Dirac cone in metal-semiquinoid frameworks.
Publisher: Elsevier BV
Date: 02-2019
Publisher: Elsevier BV
Date: 12-2008
No related grants have been discovered for Kian-Ping Lim.